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The American Society of
Mechanical Engineers
A N
A M E R I C A N
N A T I O N A L
S T A N D A R D
PIPE FLANGES AND
FLANGED FITTINGS
NPS 1/2 Through NPS 24
ASME B16.5-1MM6
(REViSiOIl Of ASMVANSI B16.5-1988)
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Date of Issuance: February 28, 1997
The 1996 edition of this Standard is being issued with an automatic addenda
subscription service. Theuse of an addenda allows revisions made in response
to public review comments or committee actions to be published as necessary;
revisions published in addenda will become effective 6 months after the Date
of Issuance of the addenda. The next edition of this Standard is scheduled for
publication in 2001,
ASME issues written replies to inquiries concerning interpretations of technical
aspects of this Standard. The interpretations will be included with the above
addenda service. Interpretations are not part of the addenda to the Standard.
ASME is the registered trademark of The American Society of Mechanical Engineers.
This code or standard was developed under procedures accredited as meeting the criteria for
American National Standards. The ConsensusCommittee that approved the code or standard was
balanced to assure that individuals from competent and concerned interests have had an
opportunity which provides an opportunity for additional public input from industry, academia,
regulatory agencies, and the public-at-large.
ASME does not "approve," "rate," or "endorse" any item, construction,
proprietary device, or
activity.
ASME does not take any position with respect to the validity of any patent rights asserted in
connection with any items mentioned in this document, and doesnot undertake to insure anyone
utilizing a standard against liability for infringement of any applicable Letters Patent, nor assume
any such liability. Users of a code or standard are expressly advised that determination of the
validity of any such patent rights, and the risk of infringement of such rights, is entirely their own
responsibility.
Participation by federal agency representative(s) orperson(s) affiliated with industry is not to be
interpreted as government or industry endorsement of this code or standard.
ASME accepts responsibility for only those interpretations issued in accordance with governing
ASME procedures and policies which preclude the issuance of interpretations by individual
volunteers.
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No part of this document may be reproduced in any form,
in an electronic retrieval system or otherwise,
without the prior written permission of the publisher.
The American Society of Mechanical Engineers
345 East 47th Street, New York, NY 10017
Copyright O 1997 by
THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS
All Rights Reserved
Printed in U.S.A.
COPYRIGHT American Society of Mechanical Engineers
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FOREWORD
(This Foreword is not part of ASME B16.5-1996)
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In 1920, the American Engineering Standards Committee [later the American Standards
Association (ASA)] organized Sectional Committee B 16 to unify and further develop standards
for pipeflanges and fittings(and later for valves and gaskets). Cosponsors of the B16
Committee were the American Society of Mechanical Engineers (ASME), the Heating and
Piping Contractors National Association [now Mechanical Contractors Association of America
(MCAA)], and the Manufacturers Standardization Society of the Valve and Fittings Industry
(MSS). Cosponsors were later designated as cosecretariat organizations.
The Committee soon recognizedtheneed
for standardization of steel pipe flanges. In
May 1923, Subcommittee 3 was organized to develop such standards for pressures in the
250 psito 3200 psi range and for elevated temperatures.Activeworkbeganin
October,
including steel flanged fittings. The first proposed standard was submitted to the Committee
in April 1926 and approved by letter ballotinDecember.
After favorable review by the
three sponsor organizations, the Standard was approved as American Tentative Standard
B 16e in June 1927.
Experience in using the Standard showedtheneed
for hub dimensions of companion
flangesand
for other changes, including rerating of 250 lb and 1350 lb flangesand
development of flanged fittings with integral bases. An investigation wasmade into the
factors determining stiffness of flanges and flange hubs. The revised edition was approved
asASA B16e-1932.
A revision was initiated in1936, stimulated by suggestions from Committee members
and industrial users. The resulting 1939 edition contained standards for welding neck flanges
(completed in March 1937), 1500 lb flanges in the 14 in. through24 in. range, 2500 lb
flangesandflangedfittingsinthe
in. through 12 in. range,and dimensions for a full
line of ring joint flanges developed by the American Petroleum Institute. Pressure-temperature
ratings for alloy steel flangesand fittings, developed by Subcommittee 4, were included
for the first time.
InAugust 1942, the War Production Board requested a review of measures to conserve
vital materials in piping components. A special War Committee of B16 was appointed and,
operating under War Standards Procedure, developed revised pressure-temperature ratings
for all materials and all pressure classes. The ratings. were published as AmericanWar
Standard B16e5-1943. In 1945, undernormal procedures, Subcommittees 3 and 4 reviewed
the 1939 Standard and the 1943 ratings, and recommended adoption of the wartime ratings.
Their report was approved as Supplement No. 1 to B16e-1939 andpublishedasASA
B 16e6-1949. In addition to ratings, the supplement updated material specification references
andadded a table of metalwall thicknesses for welding-endvalves.
Subcommittee 3 then began a revision of the entire standard. Technically, the 1949
Supplement was absorbed, new materials were recognized, a general rating methodwas
developed and added as an appendix, and welding end preparations were expanded. Editorially,
a new style of presentation wasworked out, including tables rearranged for easier use.
Approval by Sectional Committee, cosponsors, and ASA resulted in publication of ASA
B1651953 (designation changed from B16e).
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Work soon began on further revisions. Class B ratings were deleted and Class A ratings
wereclarified as the standard. An appendixdefinedqualifications for gaskets, other than
ring joint, which would merit the ratings. Another appendix defined the methodfor calculating
bolt lengths (including measurement of the length of stud bolts between thread ends instead
of between points). Pressure-temperatureratings for several new materialswereadded,the
tableofwelding end dimensionswas expanded, andthetemperatureused
in determining
ratingswereredefined.
The resulting new edition, after approval, waspublished as ASA
B16.5-1957.
The more modest revision approved as ASA B1651961 changed the text to clarify the
intent or to make requirements easier to administer. The next revision began in 1963 with
nearly 100 comments andsuggestions. No fundamentalchangeswere
made, butthe text
was further clarified and wall thicknesses less than in. for flanged fittings were recognized
in the1968 edition.
A new joint study of ratingsbetween Subcommittees 3and 4 was initiated before the
nextrevision.Based on Subcommittee 4’s report, the ratingprocedurewasrevisedanda
ratingbasis for Class 150 (150 Ib)flanges was developed. Newproduct forms, barand
plate,wereadded for special applications, including fabricated flanged valves andfittings.
Reference to welding-endvalves was deleted becausea separate standard for themwasin
preparation.Boltlength
calculations basedonworst
case tolerances led to arevisionof
tabulatedlengths. Testing of valve closure memberswasaddedtothetestrequirements.
Following final approval on October 23, the Standard was published as ANSI B16.5-1973.
SubcommitteeN was assigned responsibilityfor all valve standards inlate 1973. SubcommitteeC (formerly 3) continues to haveresponsibility for flangestandards. A revisionwas
accordingly initiated to remove all references to valves. At the same time, comments from
users and changes in the ASME Boiler and Pressure Vessel Code led to significant revisions
in the Class 150 rating basis, andin the ratings of stainless steel and certain alloy steel
flangesandflangedfittingsin
all ratingclasses.Extensivepublicreview
comments ledto
additionof considerations for flanged joints, for boltingandgaskets,andofmarking
requirements. To avoid frequent andconfusing changes in ratings as further changesin
Code allowable stresses are made, it was agreedwith Subcommittee N to leave ratings
aloneunless the relevantCode stress valuesarechanged
bymorethan
10%. After final
approval by Standards Committee, cosponsors, andANSI,ANSI
B1651977 Steel Pipe
Flangesand Flanged Fittings, was published on June 16,1977.
In 1979, work beganon another new edition. Materials coveragewas expanded bythe
addition of nickel and nickel alloys. Bolting rules were revised to cover nickel alloy bolts.
Bolt hole and bolting were changed
to provide interchangeability between inch and metric
dimensions. Metric dimensional tables weremadeinformational
rather than alternative
requirements of the Standard. Final approval was granted for ANSI B16.5-1981, Pipe Flanges
andFlanged Fittings onAugust14.
In1982,AmericanNational
Standards CommitteeB16wasreorganized
as anASME
Committee operating under procedures accredited by ANSI. The 1988 edition of the Standard
extended nickel alloy ratings to higher temperatures, clarified flat face flange requirements,
andincludedotherminorrevisions.
The Committeedeterminedthatanymetricstandard
for flanges will stand alone, with metric bolting and gaskets; hence metric equivalents have
beendeleted.Followingapproval
by the Standards CommitteeandASME,approval
as
American National Standard was given by ANSI on April
7, 1988, with the new designation
ASME/ANSIB16.5-1988.
This 1996 Edition allows flanges marked with more than
one material grade or specification,
revises flange facing finish requirements, has revised pressure-temperature ratings for several
a nonmandatoryqualitysystemannex,and
includes several other
materialgroups,adds
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revisions. Following approval by the Standards Committee andASME, approval as an
American National Standard was given by ANSI on October 3, 1996 with the new designation
ASME B16.5-1996.
Requests for interpretations or suggestions for revisionshouldbesent
to the Secretary,
B16 Committee, The American Society of Mechanical Engineers, United Engineering Center,
345 East 47th Street, New York, NY 10017.
V
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ASME B16 COMMITTEE
Standardization of Valves, Flanges, Fittings, Gaskets, and Valve
Actuators
(The following is a roster of the Committee at the time of approval of this Standard.)
OFFICERS
W. N. McLean, Chair
R. A. Schmidt, Vice Chair
K. M. Ciciora, Secretary
COMMITTEE PERSONNEL
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W. L. Ballis, Columbia Gas Distribution Co., Columbus, Ohio
R. R. Brodin, Fisher Controls International, Inc., Marshalltown, Iowa
M . A. Clark, Nibco Inc., Elkhart, Indiana
A. Cohen, Copper Development Association, Inc., New York, New York
W. C. Farrell, JI., Consultant, Birmingham, Alabama
C. E. Floren, Mueller Co., Decatur, Illinois
D. R. Frikken, Monsanto Co., St. Louis, Missouri
M. W. Garland, Frick Co., Waynesboro, Pennsylvania
J. C. Inch, Mueller Refrigeration Products Co., Hartsville, Tennessee
G. A. Jolly, The Henry Vogt Machine Co., Louisville, Kentucky
W. G. Knecht, Consultant, Williamsport, Pennsylvania
R. A. Koester, The William Powell Co., Cincinnati, Ohio
W. N. McLean, Newco Valve Co., Palos Park, Illinois
M. L. Nayyar, Bechtel Corp., Gaithersburg, Maryland
R. A. Schmidt, Ladish Co., Russellville, Arkansas
W. M. Stephan, Flexitallic, Inc., Pennsauken, New Jersey
T. F. Stroud, Ductile Iron Research Association, Birmingham, Alabama
M. D. Wasicek, ABS Americas, Houston, Texas
R. E. White, Richard E. White Et Associates, South Bend, Indiana
D. A. Williams, Southern Company Services, Birmingham, Illinois
L. A. Willis, Dow Chemical Co., Freeport, Texas
W. R. Worley, Union Carbide Corp., South Charleston, West Virginia
PERSONNEL OF SUBCOMMllTEE C
FITTINGS
- STEEL FLANGES AND FLANGED
D. R. Frikken, Chair, Monsanto Co., St. Louis, Missouri
K. M. Ciciora, Secretary, ASME International, New York, New York
V. C. Bhasin, Sigmatech, Pittsburgh, Pennsylvania
G. D. Conlee, Consultant, St. Louis, Missouri
W. C. Farrell, Jr., Consultant, Birmingham, Alabama
M. L. Henderson, Coffer Corp., Houston, Texas
R. E. Johnson, Flowline Div., New Castle, Pennsylvania
R. Koester, The William Powell Co., Cincinnati, Ohio
R. Madewell, Flo-Bend, Inc., Sand Springs, Oklahoma
W. N. McLean, Newco Valve Co., Palos Park, Illinois
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M. L. Nayyar, Bechtel Corp., Gaithersburg, Maryland
R. A. Schmidt, Ladish Co., Russellville, Arkansas
D. L. Shira, Taylor Forge, Cordova, Tennessee
J. C. Thompson, Milwaukee Valve, Rising Sun, Maryland
L. A. Willis, Dow Chemical Co., Freeport, Texas
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CONTENTS
Foreword .......................................................................
Standards Committee Roster ......................................................
1
2
3
4
5
6
7
8
...
111
vii
Scope .................................................................
Pressure-Temperature Ratings ..........................................
Size ..................................................................
Marking ..............................................................
Materials ..............................................................
Dimensions ...........................................................
Tolerances ............................................................
Test ..................................................................
Figures
1
Method of Designating Location of Auxiliary Connections
WhenSpecified
.....................................................
2
Method of Designating Outlets of Reducing Fittings in
Specifications .......................................................
3
Thread Length for Connection Tapping .................................
4
Socket Welding for Connections .......................................
5
Butt Welding for Connections ..........................................
6
Bosses for Connections ................................................
7
End Flange Facingsand Their Relationship to Flange Thickness and
Center-to-End andEnd-to-EndDimensions
............................
8
Welding Ends (Welding Neck
Flanges. No Backing
Rings):
Bevel
for Wall Thicknesses t from 0.19 in . to 0.88 in., Inclusive ............
9
Welding Ends (Welding Neck
Flanges. No Backing Rings): Bevel
for Wall Thicknesses t Greater Than 0.88 in ..........................
10
Welding Ends (Welding Neck Flanges WithBacking Rings): Inside
Contour for UseWith Rectangular BackingRing .....................
11
Welding Ends (Welding Neck Flanges with
Backing Rings): Inside
Contour for Use With Taper BackingRing ...........................
12
Welding Ends (Welding Neck
Flanges): Additional Thickness for
Welding to Higher Strength Pipe, Bevel for Outside Thickness ........
13
Welding Ends (Welding Neck Flanges): Additional Thickness for
Welding to Higher Strength Pipe.Bevel for Inside Thickness ..........
14
Welding Ends (Welding Neck Flanges): Additional Thickness for
Welding to Higher Strength Pipe. Bevel for Combined Thickness ......
Tables
1A
List of Material Specifications ..........................................
1B
List of Bolting Specifications ..........................................
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23
24
25
26
27
28
Flange Bolting
Dimensional
Recommendations
..........................
Pressure-TemperatureRatings for Groups1.1Through 3.16
Materials ...........................................................
PermissibleImperfections in FlangeFacingFinish for Raised Face
andLargeMaleandFemaleFlanges
.................................
Dimensions of Facings(OtherThanRingJoints.AllPressureRating
Classes) ............................................................
Dimensions of RingJointFacings(AllPressureRatingClasses)
.........
..........................................
Dimensions of WeldingEnds
ReducingThreadedandSlip-OnFlanges
for Classes150 to 2500 ........
Templates for DrillingClass150Flanges
...............................
Dimensions of Class150Flanges
......................................
Dimensions of Class150FlangedFittings
..............................
Templates for DrillingClass 300 Flanges ...............................
Dimensions of Class 300Flanges
......................................
..............................
Dimensions of Class 300FlangedFittings
Templates for DrillingClass400Flanges
...............................
Dimensions of Class400Flanges
......................................
Dimensions of Class400FlangedFittings
..............................
Templates for DrillingClass 600 Flanges ...............................
Dimensions of Class600Flanges
......................................
Dimensions of Class600FlangedFittings
..............................
Templates for DrillingClass 900 Flanges ...............................
Dimensions of Class900Flanges
......................................
Dimensions of Class900FlangedFittings
..............................
Templates for DrillingClass1500Flanges
..............................
Dimensions of Class1500Flanges
.....................................
Dimensions of Class1500Flanged
Fittings .............................
Templates for DrillingClass2500Flanges
..............................
Dimensions of Class2500Flanges
.....................................
Dimensions of Class2500FlangedFittings
.............................
15
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Annexes
AThreading
of Pipe for American
National
Standard
...................................................
Threaded
Flanges
B
Dimensions
of Steel
Pipe
(Table
by Weight
Class)
......................
C
Dimensions
of Steel Pipe
(Table by Schedules) .........................
Methods
D
for Establishing
Pressure-Temperature
Ratings
.................
E
Limiting
Dimensions
of Gaskets.
Other
than
Ring
Joint
.................
...................................
Method
F
for Calculating
Bolt
Lengths
Quality
G System
Program
...............................................
H
References ............................................................
Figures
El
Gasket
Groups
and
Typical
Materials
...................................
E2
Slip-on
Raised
Face
Width
Gasket
.....................................
E3
Slip-onRaisedFaceWidthGasketwithEdgesExtendingtothe
Bolt ................................................................
E4
LargeTongueWidthGasket
withGasketI.D.Equal
to PipeI.D. ........
E5
LargeTongueWidthGasketwithGasketI.D.Equal
to PipeI.D.,with
CenteringRing ......................................................
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Large Tongue Width Gasket with Gasket Outside DimensionEqual
to O.D. of RaisedFace
.............................................
Large Tongue Width Gasket with Edges Extending to the Bolt ..........
Small Tongue Width Gasket with Gasket I.D. Equalto Pipe O.D. .......
Small Tongue Width Gasket with Gasket I.D. Equal toPipeO.D.,with
Centering Ring ......................................................
Small Tongue Width Gasket with Gasket O.D. Equal to O.D. of Raised
Face ................................................................
Small Tongue Width Gasket with Edges Extending to the Bolt ..........
Specified Stud BoltLength
............................................
Specified Machine Bolt Length .........................................
Tables
Projection of Threaded PipeEndThroughRing
Gage by Flange Pressure
Al
Rating Classes ......................................................
Dimensions of Welded and Seamless Steel Pipe (ASME B36.10M);
B1
Listed as Standard Wall. Extra Strong.andDouble Extra Strong
Wall ...............................................................
Dimensions of Welded and Seamless Steel Pipe (ASME B36.10M);
c1
Listed by Schedule Numbers .........................................
Rating Ceiling Values .................................................
Dl
El
Group Nos . Iaand Ib Gaskets .........................................
E2A Group No. IIa Gaskets ................................................
E2B Group No. IIb Gaskets ................................................
E3A Group No. IIIa Gaskets ................................................
E3B Group No. IIIb Gaskets ................................................
F1
F Values .............................................................
n Values ..............................................................
F2
F3
Thicknesses for Lapped Joints ..........................................
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138
139
139
140
140
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Interpretations
...............................................................
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ASME B 16.5- 1996
PIPE FLANGES AND FLANGED FITTINGS
1SCOPE
1.1 General
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components were installed in accordance with the pressure-temperature ratings ofan earlier edition of this
Standard, those ratings are applicable except as may
be governed by the applicable code or regulation (see
para. 1.2.2).
This Standard covers pressure-temperature ratings,
materials, dimensions, tolerances, marking, testing, and
methods of designating openings for pipeflangesand
flangedfittingsin sizes NPS 5; through NPS24and
inrating Classes 150, 300, 400, 600, 900, 1500, and
2500. Flanges and flanged fittings may be cast, forged,
or (for blind flanges and certain reducing flanges only)
plate materials as listed in Table 1A.
Requirements and recommendations regarding bolting
and gaskets are also included.
1.4 User Accountability
This Standard cites duties and responsibilities that
are to be assumed by the user in the areas of application,
installation, hydrostatic testing, operation, and material
selection.
1.5 Quality Systems
1.2 References
Nonmandatory requirements relating to the product
manufacturer’s Quality System Program are described
in Annex G .
1.2.1 Referenced Standards. Standards and specifications adopted by reference inthis Standard are
showninAnnex G , which is part of this Standard. It
is not considered practical to identify the specific edition
of each standard andspecificationin
the individual
references. Instead, the specific edition reference is
identified in Annex G. A flange or flangedfitting
manufactured in accordance with earlier editions of the
referenced standards and in all other respects conforming
to this Standard will be considered to be in conformance
with this Standard.
2PRESSURE-TEMPERATURE
2.1 Ratings Basis
Ratings are maximum allowable working gage pressures at the temperatures shown in Table 2 for the
applicable material and rating. For intermediate temperatures, linear interpolation is permitted. See Annex D,
which is part of this Standard, for methods of establishing pressure-temperature ratings.
1.2.2 Codes and Regulations. A flange or flanged
fitting used under the jurisdiction of the ASME Boiler
and Pressure Vessel Code, the ASME Code for Pressure
Piping, or a governmental regulation is subject to any
limitation of that code or regulation. This includes any
maximum temperature limitation, or rule governing the
use of a material at low temperature, or provisions
for operation at a pressure exceeding the pressuretemperature ratings in this Standard.
2.2 Ratings of Flanged Joints
A flanged joint is composed of three separate and
independent,althoughinterrelatedcomponents:the
flanges, the gasket, and the bolting, which are assembled
by yet another influence, the assembler. Proper controls
mustbe exercised inthe selection and application for
all these elements to attain a joint which has acceptable
leak tightness. Special techniques, such as controlled
bolt tightening, maybenecessary
to achieve a tight
joint in service.
Ratings in this Standard apply to flanged joints which
conform to the limitations on bolting in para. 5.3 and
on gaskets in para. 5.4, andwhich are made upin
accordance with good practice for alignment and assembly. See also para.2.4.Use of the ratings for flanged
joints not conforming to these limitations is the responsi-
1.3 Applicable Ratings
The pressure-temperature ratings in this Standard
are applicable uponits publication to all flangesand
flangedfittingswithin its scope which otherwise meet
its requirements. For unused flanges or flanged fittings
maintained in inventory, the manufacturer of the flange
or flanged fittings may certify conformance to this
Edition provided he can demonstrate that all requirements of this Edition havebeen
met. Wheresuch
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RATINGS
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PIPE FLANGES AND FLANGED FllTlNGS
ASME 616.5-1996
2.5SystemHydrostaticTest
bility of theuser.Requirements
for alignment and
assembly of joints arenot given inthis Standard.
If thetwoflanges
in aflanged joint do nothave
the same pressure-temperature ratings, therating of
the joint at anytemperature is the lower of thetwo
flangeratings at that temperature.
Flanged joints and flanged fittings may be subjected
to system hydrostatic tests at a pressure not to exceed
1.5times the 100°F rating rounded off to the next
higher25psi.
Testing at anyhigher pressure is the
responsibility of theuser,subject to the requirements
of the applicable code or regulation.
2.3RatingTemperature
2.6 WeldingNeck Flanges
The temperature shown for a corresponding pressure
rating is thetemperature of the pressure-containing
shell of theflange or flangedfitting.Ingeneral,this
temperature is the same as that of the contained fluid.
Use of a pressure rating corresponding to a temperature
other than that of the contained fluid isthe responsibility
of the user, subject to the requirements of the applicable
code or regulation. For any temperature below -20"F,
the rating shall be no greater than the ratingshown
for -20°F.
Ratings for weldingneckflangescoveredby
this
Standard are based upon their hubs at the welding end
havingthickness at least equal to that calculated for
pipe having 40.0 ksi specified minimum yield strength.
(Forhigher strength pipe withthinnerwall, see MSS
SP-44.) The ratingsalso apply to suchflangesused
with components of unequal strength and unequal wall
thickness when the attachment weld is made in accordance with the applicable code or regulation. See Figs.
12, 13,and14.
2.4 Temperature Considerations
2.7 Multiple Material Grades
Application of the ratings in this Standard to flanged
joints at both highandlowtemperaturesshalltake
into consideration therisk of leakage due to forces
or
andmoments developed intheconnectedpiping
equipment. The followingprovisions are intended to
minimize these risks.
Materials for flangesandflangedfittingsmaymeet
therequirements for morethan one specification or
grade of aspecification listed in Table 1A.Inthat
event, the pressure-temperature ratings for any of these
specifications or grades may be usedprovided that
markingisin accordance withpara.4.1.2(d).
2.4.1Flange
Attachment. Socket weldingand
threaded flanges are not recommended for service above
500°F or below-50°F if severe thermal gradients or
thermalcycling are involved.
3 SIZE
3.1 NominalSize
2.4.2HighTemperatureService.
Attemperatures in the creep range, gradual relaxation of flanges,
bolts, and gaskets may progressively reduce bolt loads.
It may be necessary to arrange for periodic tightening
of bolts to prevent leakage. Joints subject to substantial
thermalgradients may requirethesame attention.
Whenusedabove400"F,Class
150 flanged joints
may develop leakageunless care is taken to avoid
imposing severe externalloads andor severethermal
gradients. For other classes, similar consideration should
be given above 750°F.
The size of aflange or flangedfittingcovered by
this Standardis its nominal pipesize, NPS. The diameter
of a bolt is its nominal size. Use of "nominal" indicates
that the stated size or dimension is only for designation,
notmeasurement. The actual dimension may or may
notbethenominal
size andissubject to established
tolerances.
3.2Reducing
Reducing fittings shall be designated by the size of
the openingsintheir proper sequence as indicatedin
the sketches of Fig. 2.
2.4.3 Low Temperature Service. The user should
recognize that some of the material listed in the rating
tables undergo sufficient decrease in toughness atlow
temperatures that they cannot safely sustain shock loadings, sudden changes of stress or temperature, or high
stressconcentrations.
3.3ReducingFlanges
Reducingflangesshallbedesignated
by the two
nominal pipesizes. See examples in Note (4) of Table 7.
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ASME 616.5-1996
PIPE FLANGES AND FLANGED FITTINGS
4 MARKING
5 MATERIALS
4.1 General
5.1 General
Except as modified herein, flanges and flanged fittings
shall bemarkedas required in MSS SP-25.
Flanges and flanged fittings covered by this Standard
shall be castings, forgings, and (for blind flanges only)
plate as listed in Table 1A.Recommendedbolting
materials are listedin Table 1B. (See also para. 5.3.)
ASMEBoiler and Pressure Vessel Code, Section II
materials, which also meet the requirements of the
specifications listed in Tables 1A, lB, and lC, may
also beused.
4.1.1 Name. The manufacturer’s name or trademark
shall be applied.
4.1.2 Material
(a) Cast flanges and flanged fittings shall be marked
with the ASTM specification,’ grade identification symbol,and the melt number or melt identification.
(b) Plate flanges, forged flanges, and flanged fittings
shall be marked with the ASTM specification number’
and grade identification symbol.
(c) A manufacturer may supplement these mandatory
material indications withhis trade designation for the
material grade, but confusion of symbols shall be
avoided.
(d) Flanges andflanged fittings manufacturedfrom
materialwhichmeets the requirements for more than
one specification or grade of a specificationlistedin
Table 1A maybemarkedwithmorethanoneofthe
applicable specification or grade symbols. The symbols
shall beplaced to avoid confusion inidentification.
5.1.1 Application. Criteria for the selection of materials are notwithin the scope of this Standard. The
possibility of material deterioration in service should
be considered by the user. Carbide phase conversion
to graphite and excessive oxidation of femtic materials,
susceptibility to intergranular corrosion of austenitic
materials, or grain boundary attack of nickel base alloys
are among those items requiring attention. A detailed
discussion of precautionary considerations can be found
inAppendix F of ASMWANSIB31.3.
5.1.2 Toughness. Some of the materials listed in
Table 1A undergo a decrease in toughness whenused
at low temperatures, to the extent that Codes referencing
this Standard may require impact tests for application
even at temperatures higher than +20”F. It is the
responsibility of the user to assure that such testing is
performed.
4.1.3 Rating Class. The marking shall be the applicable pressure rating class: 150, 300, 400, 600, 900,
1500, or 2500.
4.1.4 Designation. The designation B16 shallbe
applied, preferably located adjacent to the class designation,to indicate conformance to this Standard.
5.1.3 Responsibility. When service conditions dictate the implementation of special material requirements,
e.g., using a Group 2 material above 1000”F, it is the
users responsibility to so specify to the manufacturer
in order to ensure compliance with metallurgical requirements listed in the notes in Table 2.
4.1.5 Temperature. No temperature markingsare
required on flanges and flanged fittings, but if marked,
the temperature shall be shown withits corresponding
tabulated pressure rating for the material.
5.2 Mechanical Properties
4.1.6 Size. The nominal pipe size shall be given,
but may be omitted from reducing flanges and reducing
flanged fittings.
Mechanical properties shall be obtained from test
specimens that represent the final heat treated condition
of the material required by the materialspecification.
4.1.7 Ring Joint Flange. The edge (periphery) of
eachring joint flange shall bemarkedwiththe
letter
R andthe corresponding ring groove number.
5.3 Bolting
Bolting listed in Table 1B is recommended for use
inflanged joints covered by this Standard. Bolting of
other material may be used if permitted by the applicable
code or government regulation. Allbolting materials
are subject to the following limitations.
’
The ASME Boiler and Pressure Vessel Code, Section II specification
number may be substituted provided the material is covered by
Section II.
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PIPE FLANGES AND FLANGED FllTlNGS
ASME 616.5-1996
5.3.1HighStrengthBolting.
Boltingmaterials
having allowable stresses not less than those for ASTM
A 193 Grade B7 are listed as highstrength in Table
1B. These and other materials of comparable strength
may be usedinanyflanged
joint.
full face gaskets extending to the outside diameters of
the flanges and with both the Class 300 steel and Class
250 cast ironflangeshavingflatfaces.
5.3.2 Intermediate Strength Bolting. Bolting
materialslisted as intermediate strengthin Table IB,
and other bolting of comparable strength, may be used
in anyflanged joint, provided the userverifiestheir
ability to seat the selected gasket and maintain a sealed
joint under expected operating conditions.
Ring joint gasket materials shall conform to ASME
B16.20. Materials for other gaskets are described in
Annex E, whichis part of this Standard. The user is
responsible for selection of gasket materials which will
withstandtheexpected bolt loading without injurious
crushing, and which are suitable for the service conditions. Particular attention shouldbegiven
to gasket
selection if asystem hydrostatic test approaches or
exceeds the testpressurespecifiedinpara.
2.5.
5.4 Gaskets
5.3.3 Low StrengthBolting. Boltingmaterials
having not more than 30 ksi specified minimum yield
strength are listed as low strength in Table 1B. These
materialsand others of comparable strengthshall be
used only in Classes 150 and 300 joints, and only with
gaskets described in para. 5.4.1. Flanged joints using
low strength carbon steel bolts shall not be used above
400°F or below -20°F.
5.4.1Gasketsfor
Low StrengthBolting.
If
bolting listed as low strength in Table 1Bisused,
gaskets shown in Fig. El, Group No. Ia, shall be used.
5.4.2 Gaskets for Class 150 Flanged Joints. It
is recommended that only Fig. E l , Group No. I, gaskets
beused for Class 150 flanged joints. When the ring
joint or spiralwoundgasket is selected, it isrecommendedthat line flanges beof the weldingneck or
lapped joint type.
The
5.3.4 Bolting to GrayCastIronFlanges.
following recommendations are made in recognition of
thelowductility of gray cast iron.
(a) Alignment of flange faces is essential along with
control of assembly bolt torque so as not to over-stress
the cast ironflanges. Care mustalso be exercised to
ensure that piping loads transmitted to cast iron flanges
are controlled, taking into account its lack of ductility
and recognizing thatcast iron flanges should notbe used
wheresuddenlyappliedloads
such as rapidpressure
fluctuation may occur.
(b) Where Class 150 steel flanges are bolted to Class
125 cast iron flanges, the gaskets shouldbemade of
Group No. Iamaterials, the steel flangesshouldhave
flat faces, and:
(1) low strength bolting within the limitations of
para. 5.3.3 should be used with ring gaskets extending
to the bolt holes; or
(2) bolting of low (para. 5.3.3), intermediate (para.
5.3.2), or high (para. 5.3.1) strength may be used with
full face gaskets extending to the outside diameters of
theflanges.
(c) Where Class 300 steel flanges are bolted to Class
250 castironflanges, the gaskets should be madeof
Group No. Iamaterials,and:
(I) low strengthboltingwithin the limitations of
to
para. 5.3.3 shouldbeusedwithgasketsextending
the bolt holes and with the flanges having either raised
or flat faces; or
(2) bolting of low (para. 5.3.3), intermediate (para.
5.3.2), or high (para. 5.3.1) strength may be used with
6 DIMENSIONS
6.1 Wall Thickness
For inspection purposes the minimum wall thickness
offlangedfittings at the time of manufacture shall
be as shown in Tables 10, 13, 16, 19, 22, 25, and 28,
except as providedinpara.
6.1 .l.See Annex D for
thebasisused to establish valuesof fm.
Additionalmetal thickness needed to withstand assembly stresses, shapes other than circular, andstress
concentrations must be determined by the manufacturer,
since these factors varywidely.Inparticular,
45 deg.
laterals, true Y’s, and crosses mayrequireadditional
reinforcement to compensate for inherentweaknesses
intheseshapes.
,f
6.1.1LocalAreas.
Local areas having less than
minimumwallthicknesswillbe
acceptable provided
that:
(a) theareaof
subminimum thickness canbeenclosed by a circle whose diameter isno greater than
0.35
where d is the inside diameter as defined
above and tm is the minimum wall thickness as shown
in the tables listed in para. 6.1; and
(b) measured thickness is not less than 0.75 f m ; and,
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ASME B16.5-1996
6.3.1 The thickness of a Class 150 or 300 flange
raised face has been removed shall be
no less than the applicable dimension C of Tables 9,
10, 12, and 13 minus 0.06 in.
(c) enclosure circles are separated from each other
by an edge-to-edge distance of morethan1.75
from which the
6.
6.2 Center-to-Center Surface and Center-toEnd
6.3.2 The thickness of a flange of Class 400 or
higher from whichthe raised face hasbeenremoved
shall beno less than the applicable dimension C of
Tables 15, 16, 18, 19, 21, 22, 24, 25, 27,and 28.
6.2.1 Design. A principle of design in this Standard
is to maintain a fixed position for the flange edge with
reference to the body of the fitting. The addition of
any facing is beyond the outside edge of the flange
except for the 0.06 in. raised face in theClasses150
and 300 Standards. (See para.6.4.)
6.3.3 A gasket of Group No. Ia material (see Fig.
E l ) is recommended for all joints having two flat faced
flangesusing a gasket which has a larger diameter
than the raised face shown in Table 4.
6.2.2 Standard Fittings. Center-to-contact surface,
center-to-flange edge, and center-to-end (ring joint)
dimensions are shownin Tables 10, 13, 16, 19, 22,
25, and 28.
6.3.4 The flange facing shall conform with para.
6.4.4 for the full width of seating of the gasket.
6.2.3 Reducing Fittings. Center-to-contact surface
or center-to-flange edge dimensions for all openings
shall be the same as those of straight size fittings of
the largest opening. The contact surface-to-contact surface or flange edge-to-flange edge dimensions for all
combinations of reducers and eccentric reducers shall
be as listed for the larger opening.
6.4 Facings
6.4.1 For Other Than Lapped Joints. Table 4
gives dimensions for facings other than ring joint. Table
5 gives dimensions for ring joint facings. Figure 7
shows application of facings. Classes 150 and 300
fittingsand companion flanges are regularly furnished
with a 0.06 in. raised face which is includedin the
minimumflange thickness C. Classes 400, 600, 900,
1500, and 2500 fittingsand companion flanges are
regularly furnished with 0.25 in. raised face which is
additional to the minimum flange thickness C. Any
other facing than the above, when required for any
class, shall be furnished as follows.
6.2.4 Side Outlet Fittings. Side outlet elbows,
side outlet tees, and side outlet crosses shall haveall
openings on intersecting center lines, and the centerto-contact surface dimensions of the side outlet shall
be the same as for the largest opening. Longradius
elbows with side outlet shall have the side outlet on
the radial center line of the elbow, and the center-tocontact surface dimension of the side outlet shall be
the same as for the regular 90 deg. elbow of the largest
opening.
6.4.1.1 No metal shall be cut from the minimum
flange thickness specified herein except as permitted
inpara. 6.3.
6.4.1.2 In the case of the 0.25 in. raised face,
tongue or male face (other than0.06 in. raised face
for Classes 150 and 300), the minimum flange thickness
C shall befirst provided andthen the raised face,
tongueormale face shall beadded thereto.
6.2.5 Special Degree Elbows. Special degree elbows ranging from l deg. to 45 deg., inclusive, shall
have the same center-to-contact surface dimensions as
45 deg. elbows and those over 45 deg. and up to 90
deg., inclusive, shall have the same center-to-contact
surface dimensions as 90 deg. elbows. The angle designation ofan elbow is itsdeflectionfrom straight line
flowand is also the angle between the flange faces.
6.4.1.3 With ring joint, groove, or female face,
theminimumflange
thickness shall befirstprovided
andthensufficientmetaladded
thereto so thatthe
bottom of the ring joint groove, or the contact face
of the groove or female face is in the same plane as
theflange edge of a full thickness flange.
6.3 Flat FaceFlanges
This Standard permits flat face flanges in all classes,
by providing flanges having either the full thickness
or the thickness with the raised face removed, without
reduction of the pressure-temperature ratings subject
to the following provisions.
6.4.2 For Lapped Joints. Facings shallbe
nishedas follows.
6.4.2.1 RaisedFace. Finished height of face
shall beno less than nominal pipe wall thickness.
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ASME 816.5-1996
FITTINGS
FLANGED
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AND
FLANGES
6.4.2.2 Large Male and Female. Finished
height of amale
face shall beno
less thanwall
thickness of pipe used or 0.25 in., whichever is greater.
Thickness of lap remaining after matching the female
face shallbenolessthanthenominalwallthickness
ofpipeused.
PIPE
6.4.5FlangeFacingFinishImperfections.
Imperfections in the flange facing finish shall not exceed
the dimensions shown in Table 3. Adjacent imperfections shall be separated by a distance of at least four
times the maximum radial
projection. A radial projection
shall be measured by the difference between an outer
radius and an inner radius encompassing the imperfectionwhere the radii are struck fromthe centerline of
the bore. Imperfections less than half the depth of the
serrationsshallnot be considered cause for rejection.
Protrusionsabove the serrations are notpermitted.
6.4.2.3 Tongue and Groove. Thickness of lap
remaining after matching tongue or groove face shall
be no less thanthenominalwallthickness
of the
pipeused.
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6.4.2.4 Ring Joint. Thickness of lap remaining
after machiningthering groove shall be no less than
thenominalwall thickness ofpipeused.
6.5 FlangeBoltHoles
Bolt holes are in multiples of four. Bolt holes shall
be equally spaced and pairs of bolt holes shall straddle
fitting center lines.
6.4.2.5 The outside diameters of laps for ring
joints are shown in Table 5, dimension K. The outside
diameters of laps for large female, large tongue and
groove,andsmall
tongue andgroove are shown in
Table 4. Small maleand female facings are notused
with lapped joints.
6.6Spot Facing
All cast and forged flanges and flanged fittings shall
have bearing surfaces for bolting which shall be parallel
to the flange face from within 1 deg. Any back facing
or spot facing required to accomplish parallelism shall
not reduce the flange thickness C below the dimensions
givenin Tables 9, 10, 12, 13, 15, 16,18,19, 21, 22,
24, 25, 27, and 28. Any spot facing or back facing
shallbe in accordance with MSS SP-9.
6.4.3 Blind flanges need not be faced in the center
if, when this center part is raised, its diameteris at
least 1in.smallerthan the inside diameter offittings
ofthe corresponding pressure class, as givenin the
tables. When the center part is depressed, its diameter
shall notbe greater than the inside diameter of the
correspondingpressure class fittings, as giveninthe
tables. Machining of the depressed center is not required.
6.7WeldingEndPreparationforWelding
Neck Flanges
6.7.1 Welding ends are showninFigs.
The finish of contact
6.4.4FlangeFacingFinish.
faces of pipeflangesandconnectingendflanges
of
fittings shall be judged by visual comparison with Ra
standards (see ASME B46.1) andnotbyinstruments
havingstylustracersand electronic amplification. The
finishes required are given below. Other finishes may be
furnished by agreement between user and manufacturer.
6.7.2 The contours of the outside of the welding
neckbeyondthewelding
groove are showninFigs.
8, 9, 12,and14.
6.7.3 Straight through bores showninFigs. 8 and
9 are standard unless otherwise specifically order to
suit the special conditions illustratedinFigs.10,11,
6.4.4.1 T~~~~~ and G~~~~~ and small~~l~
and
Female.
The gasket
contact
surface
shall not
exceed125 pin. roughness.
139 and 14*
6.7.4 Otherweldingendpreparationsfurnished
by
agWment of purchaser andmanufacturer do not invdidate compliance
with
this
Standard.
6.4.4.2Ring Joint. The side wall surface of
gasket
groove shall not exceed 63 pin. roughness.
reduction
8 through 14.
6.4.4.3 Other FlangeFacings. Eitheraserrated
6.8Reducing ~l~~~~~
concentric or serrated spiral finishhavingaresultant
surface finish
from
125 pin. to 250 kin. average
6.8.1 Drilling, Outside Diameter, Thickness,
roughness shall be furnished. The cutting tool employed
andFacingDimensions.
Flangedrilling, outside
shouldhaveanapproximate
0.06 in. or largerradius,diameter,thickness,and
facing are the same as those
andthereshould
be from 45 grooveslin.through 55
of the standard flange of the size from which the
grooveslin.
made.
is being
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PIPE FLANGES AND FLANGED FITTINGS
ASME 816.5-1996
6.8.2 Hub Dimensions
6.9.5 Annex A indicates the distance andnumber
of turns that external pipe threads may be made longer
thanregular for usewith the higher pressureflanges
to bring the small end of the thread close to the face
of the flangewhentheparts
are assembled by power
equipment. Annex A applies to ASME B 1.20.1 and is
considered part of this Standard.
6.8.2.1 Threaded, Socketweld, and Slip-On
Flanges. The hub dimensions shall be at least as large
as thoseof the standard flange of the size to which
the reduction is beingmade. The hubmaybe
larger
or omitted as detailed in Table 7.
6.8.2.2 Welding Neck Flanges. The hub dimensions shall be the same as those of the standard flange
of the size to which the reduction is beingmade.
6.10 Flange Bolting Dimensions
6.10.1 DimensionalStandards. Studbolts
threadedatboth ends or full length, or bolts may be
used.Dimensional
recommendations for bolts, stud
bolts,andnuts are shown in Table 1C. See para. 5.3
for boltingmaterial recommendations.
6.9 Threads for Threaded Flanges
Except as providedinNote
(5), Fig. 7, andNote
an American
National Standard taper pipe thread conforming to
ASME B 1.20.1. The thread shall be concentric with
the axis of the flange, and variations in alignment shall
not exceed 0.06 in./ft (0.5%).
( 3 , Table 4, threaded flanges shall have
6.10.2 Bolt Lengths. Stud bolts with a nut at each
end arerecommended for high temperature service.
Stud bolt lengths are specified in Tables 8, 11, 14, 17,
20, 23, and 26, and include the thickness of two nuts.
The stud boltlength does not include the height of
any point. A point is that part of a stud bolt or a bolt
beyond the thread and may be chamfered, rounded, or
sheared. For the method of calculating bolt lengths,
see Annex F.
These lengths are established for the convenience of
industry to simplify the assembly of these parts on
construction work,but users mayselect combinations
of these bolt lengths to suit their needs. Hence, Annex
F isnot considered part of this Standard.
6.9.1 Class 150 flanges are made without a counterbore. The threads shall be chamfered approximately to
the major diameter of thethreadattheback
of the
flange at an angle of approximately 45 deg. withthe
axis of the thread. The chamfer shall be concentric
with the thread and shall be included in the measurement
of the thread length.
6.9.2 Class 300 and higher pressure flanges are made
with a counterbore at the backof the flange. The
threads shall be chamfered to the diameter of the
counterbore at an angle of approximately 45 deg. with
the axis of the threads. The counterbore and chamfer
shall be concentric with the thread.
6.9.3 The minimum length of effective threadin
reducing flanges shall be at least equal to dimension
T of the corresponding class of threaded flange as
shown in the tables. Threads do not necessarily extend
to the face of the flange. See Table 7 for reducing
threadedflanges.
6.10.3 The end flange bolting is based on a stress
on the effective tensile stress area of the bolts not to
exceed 7.0 ksi, assuming a pressure in psi equal to
the pressure rating class designation to act uponan
area circumscribed by the outside diameter of the raised
face, dimension R, Table 4.
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6.11 Gaskets for LineFlanges
6.1 1.1 Ring joint gasket dimensions shall conform
to ASME B16.20.
6.1 1.2 For flangeswithraised
face, or with large
male-and-female face, gaskets shall conform to limiting
dimensions of Annex E.
6.9.4 The gaging notch of theworking gage shall
come flushwith
the bottom of the chamfer in all
threadedflanges and shall be considered as being the
intersection of the chamfer cone and the pitch cone of
the thread. This depth of chamfer is approximately
equal to one-half the pitch of the thread. The maximum
allowable thread variation is one turn large or small
from the gaging notch.
6.11.3 For flanges having large or small tongueand-groove faces, all gaskets except solid flatmetal
gaskets shall cover the bottom of the groove, with
minimum clearance. (See para. 7.2.1 for tolerance applicable to groove.) Solid flatmetal gaskets shall have
contact width not greater than for Group No. III gaskets.
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ASME 816.5-1996
PIPE FLANGES AND FLANGED FllTlNGS
6.11.4 For flanges with small male-and-female face,
care mustbetaken
to insure thatadequatebearing
surface is provided for the gaskets. This applies particularly where the joint is made on the end of pipe. See
Fig. 7.
7 TOLERANCES*
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7.1 General
For the purpose of determining conformance with
this Standard, the convention for fixing significantdigits
where limits, maximum or minimum values are specified, shall be the rounding-off method defined inASTM
Practice E 29. This requires that an observed or calculated value shall be rounded to the nearest unit in the
last righthand digit used for expressing the limit.
The listing of decimal tolerances does not imply a
particular method of measurement.
6.12 AuxiliaryConnections
No auxiliary connections, or openings therefore, will
beprovidedexcept
as specified by the purchaser. If
assembly is required,thepurchaser shall also specify
the applicable code or regulation. Weldedauxiliary
connections shall be made by a qualified welder using
a qualifiedweldprocedure.
7.2 Center-to-ContactSurfacesand Center-toEnd
6.12.1 Pipe Thread Tapping. Holes may be tapped
in thewall of a fitting if themetal is thick enough
to allowthe effective threadlengthspecified
in Fig.
3. Wherethreadlength
is insufficient or the tapped
holeneedsreinforcement, a bossshallbeadded.
7.2.1 Center-to-Contact SurfacesOtherThan
Ring Joint
PS 10 and smaller
NPS 12 and larger
6.12.2WeldedConnections
0.03 in.
0.06 in.
7.2.2 Center-to-End (Ring Joint)
6.12.2.1 Sockets. Sockets (socket welding) may
beprovidedinthewallof
a fitting if themetal is
thick enough to afford the depth of socket and retaining
wallspecified in Fig. 4. Where the wall thickness is
insufficient, or the size oftheconnection
requires
opening reinforcement, a boss shall beadded.
NPS 10 and smaller
NPS 12 and larger
0.03 in.
0.06 in.
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7.2.3 Contact Surface-to-Contact Surface
Other Than Ring Joint
6.12.2.2ButtWeld.Connections
may be
attached by butt welding directly to thewallof
the
fitting(seeFig.
5). Where the size ofan
opening
requires reinforcement, a boss shall be added.
NPS 10 and smaller
NPS 12 and larger
7.2.4End-to-End(Ring
0.06 in.
0.12 in.
Joint)
NPS 10 and smaller
NPS 12 and larger
0.06 in.
O.12 in.
6.12.3 Bosses. Where bosses are required, the diameters shall be not less thanthoseshown in Fig. 6,
andtheheightshall
provide lengths as specified in
Fig. 3 or 4.
7.3Facings
6.12.4Size.Unless
otherwise specified,auxiliary
connections shall beof the pipesizesgivenbelow.
7.3.1 Inside and outside diameter of large and small
tongueand groove and female, 0.02 in.
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Fitting Size, NF9
Connection, NPS
2 4
5-8
10 and up
"/4
'/2
7.3.2 Outside diameter, 0.06 in. raised face, 0.03 in.
7.3.3 Outside diameter, 0.25 in. raised face, 0.02 in.
1
7.3.4Ring
Table 5 .
6.12.5 Designating Locations.This means of designating thelocations for auxiliary connections in fittings
areshown in Fig. 1.
Each possible location is designated by a letter so
that the desired locations for the various typesof fittings
may bespecifiedwithoutusing
further sketches or
description.
are shown in
7.4FlangeThickness
NPS 18 and smaller
NPS 20 and larger
* Unless otherwise stated,tolerancesare
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COPYRIGHT American Society of Mechanical Engineers
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joint groovetolerances
+0.12in.,-zero
+0.19 in.,-zero
equal plus and minus.
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PIPE FLANGES AND FLANGED FllTlNGS
ASME 616.5-1996
7.5 Hub Dimensions and Welding Ends
7.7.2 Counterbore, Threaded Flanges
NPS 10 and smaller
NPS12and
larger
7.5.1 Nominal outside diameter of weldingend of
weldingneckflanges (dimension A of Figs. 8 and 9).
NPS 5 and smaller
NPS 6 and larger
+0.09 in., -0.03 in.
+0.16 in., -0.03 in.
+0.03 in., -zero
+0.06 in., -zero
7.8 Drilling and Facing
7.8.1 Bolt circle diameter, 0.06 in.
7.5.2 Nominal inside diameter of welding ends of
welding neck flanges andsmaller bore of socket welding
flanges (dimension B in the referenced figures).
7.8.2 Center-to-center of adjacent bolt holes, 0.03 in.
7.8.3 Eccentricity between bolt circle diameter and
machined facing diameters.
Figs. 8 and 9:
NPS 10 and smaller
NPS 12 to 18, inclusive
NPS 20 and larger
NPS 21/2 and smaller
NPS 3 and larger
0.03 in.
0.06 in.
+0.12 in., -0.06 in.
0.03 in.
0.06 in.
8 TEST
Fig. 10:
NPS 10 and smaller
NPS 12 and larger
8.1 Flanged Fitting Training
+zero, -0.03 in.
+zero, -0.06 in.
Each flanged fitting shall be given a hydrostatic
shell test as specifiedin para. 8.3.
7.5.3 Bore of backing ring of welding neck flanges
(dimension C of Figs. 10 and 11).
All
sizes
+0.010 in.,
- zero
zyxwvu
8.2 Flange Testing
Flanges are not required to be hydrostatically
tested.
7.5.4 Thickness of Hub. Regardless of tolerances
specified for dimensions A and B, the thickness of hub
at the weldingend shall never be less than 871/2% of
the nominal thickness of the pipe to which the flange
is tobe attached.
8.3 Hydrostatic Shell Test
The hydrostatic shell test for flanged fittings
shall beno less than1.5 times the 100°F rating
rounded off to the next higher 25 psi increment.
7.6 Overall Length Through Hub on Welding
Neck Flanges
NPS 4 and smaller
NPS 5 to 10, inclusive
NPS 12 and larger
8.3.1 The test shall be made with water, which may
contain a corrosion inhibitor, with kerosene, or with
another suitable fluid provided its viscosity is no greater
thanthat of water,at a test temperature not above
125°F.
+0.06
+0.06, -0.12
+O. 12, -0.18
8.3.2 The test duration shall be a minimum of 1
min for fittingsNPS 2 and smaller, 2 min for fittings
NPS 2V2-NPS 8, and 3 min for fittingsNPS 10 and
larger.
7.7 Bore of Flanges
7.7.1 Lapped, Slip-On, and Socket Welding
Flanges
NPS10and
smaller
NPS 12 and larger
8.3.3 No visible leakage is permitted through the
pressure boundarywall.
+0.03 in., -zero
+0.06 in.,-zero
9
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
zyxwvuts
zyxwvutsrqpon
S T D - A S M E B L b - 5 - E N G L L97b
816.5-1996
0 7 5 7 b 7005 7 7 4 0 b
PIPE FLANGES AND FLANGED FllTlNGS
ASME
TABLE 1ALIST
Material
Group
1.1
T
OF MATERIALSPECIFICATIONS
APPl nble ASTM Specifications'
PressureTemperature
Rating Table
Nominal
Designation
c-si
Forgings
2-1.1 A 105
Castings
Plates
A 216 Gr. WCB
A 515 Gr. 70
A 516 Gr. 70
A 537 CI. 1
A 350 Gr. LF2
C-Mn-Si
2-1.2
1.2
I A 350 Gr. LF3
1.3
c-si
A 216 Gr. WCC
A 352 Gr. LCC
A 352 Gr. LC2
A 352 Gr. LC3
A 352 Gr. LCB
2-1.3
C-Mn-Si
2VzNi
3%Ni
1.4
c-si
A 350 Gr. LFl Cl. 1
C-'/2Mo
A 217 Gr. WC1
A 352 Gr. LC1
F1Gr.
1822-1.5
A
1.7
A 203 Gr. B
A 203 Gr. E
A 515 Gr. 65
A 516 Gr. 65
A 203 Gr. A
A 203 Gr. D
A 515 Gr. 60
A 516 Gr. 60
2-1.4
C-Mn-Si
1.5
L8b
A 204 Gr. A
A 204 Gr. B
A 204 Gr. C
2-1.7
A 182 Gr. F2
A 217 Gr. WC4
A 217 Gr. WC5
A 182 Gr. F12 CI. 2
1Cr-V2Mo
1V4Cr-V2Mo
1V4Cr-V2Mo-Si
2-1.9
1.10
2V4Cr-1Mo
2-1.10
1.13
5Cr-V2Mo
1.14
9Cr-1Mo
2.1
18Cr-8Ni
2-2.1
A 182 Gr. F304
A 182 Gr. F304H
A 351 Gr. CF3
A 351 Gr. CF8
2.2
16Cr-12Ni-2Mo
2-2.2
A 182 Gr. F316
A 182 Gr. F316H
A 351 Gr. CF3M A 240 Gr. 316
A 351 Gr. CF8M
A 240 Gr. 316H
A 240 Gr. 317
A 351 Gr. CG8M
1.9
A 217 Gr. WC6
A 387 Gr. 11 Cl. 2
A 182 Gr. F11 Cl. 2
A 182 Gr. F22 Cl. 3
A 217 Gr. WC9
A 387 Gr. 22 Cl. 2
A 182 Gr. F5 2-1.13
A 182 Gr. F5a
A 217 Gr. C5
I
2-1.14 F9
I
Gr.A 182
A 217 Gr. C12
18Cr-13Ni-3Mo
19Cr-1ONi-3Mo
2.3
180-8Ni
2-2.3182
2.4
18Cr-ION¡-Ti
2-2.4 182
F304L
A
Gr.
A 240 Gr. 304L
A 240 Gr. 316L
F321
A
Gr.
A 240 Gr. 321
A 240 Gr. 321H
10
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
A 240 Gr. 304
A 240 Gr. 304H
zyxwvutsrqponm
PIPE FLANGES
FITTINGS
AND FLANGED
ASME 816.5-1996
TABLE1A
~
LIST OF MATERIAL SPECIFICATIONS (CONT'D)
~~
~
Material
Group
~~~~~
Applicable ASTM Specifications'
PressureTemperature
Nominal
Forgings
A 182 Gr. F347
A 182 Gr. F347H
A 182 Gr. F348
A 182 Gr. F348H
2.5
2.6
25Cr-12Ni
Plates
Castings
A 351 Gr. CF8C
A
A
A
A
240 Gr. 347
240 Gr. 347H
240 Gr. 348
240 Gr. 348H
A 351 Gr. CH8
4 351 Gr. CH20
2-2.6
1
23Cr-12Ni
A 240 Gr. 309s
A 240 Gr. 309H
I
2-2.7
A 182 Gr. F310
20Cr-18Ni-6Mo
22Cr-5Ni-3Mo-N
25Cr-7Ni-4Mo-N
2-2.8
A 182 Gr. F44
A 182 Gr. F51
A 182 Gr. F53
35Ni-35Fe-20Cr-Cb
2-3.1
B 462 Gr. NO8020
2.7
25Cr-20Ni
2.8
3.1
I
1
zy
A 351 Gr. CK20
A 240 Gr. 3105
A 240 Gr. 310H
A 351 Gr. CK3MCuN
A 240 Gr. 531254
A 240 Gr. S31803
A 240 Gr. S32750
B 463 Gr. NO8020
A 351 Gr. CN7M
~~
3.2
99.ONi
2-3.2
B 160 Gr. NO2200
B 162 Gr. NO2200
3.3
99.ONi-Low C
-
2-3.3
B 160 Gr. NO2201
B 162 Gr. NO2201
3.4
67Ni-30C~
67Ni-30Cu-S
2-3.4
B 564 Gr. NO4400
B 127 Gr. NO4400
3.5
72Ni-15Cr-8Fe
2-3.5
B 564 Gr. NO6600
B 168 Gr. NO6600
3.6
33Ni-42Fe-21Cr
2-3.6
B 564 Gr. NO8800
B 409 Gr. NO8800
B 164 Gr. NO4405
I
~~
3.7
65Ni-28Mo-2Fe
2-3.7
B 335 Gr. NI0665
B 333 Gr. N10665
3.8
54Ni-16Mo-15Cr
60Ni-22Cr-9Mo-3.5Cb
62Ni-28Mo-5Fe
70Ni-16Mo-7Cr-5Fe
61Ni-16Mo-16Cr
42Ni-21.5Cr-3Mo-2.3Cu
2-3.8
B 564 Gr. NI0276
B 564 Gr. NO6625
B 335 Gr. N10001
B 573 Gr. N10003
B 574 Gr. NO6455
B 564 Gr. NO8825
B 575 Gr. NI0276
3.9
47Ni-22Cr-gMo-18Fe
2-3.9
3.10
25Ni-46Fe-21Cr-5Mo
2-3.10
3.1 1
44Fe-25Ni-21Cr-Mo
3.12
26Ni-43Fe-22Cr-5Mo
47Ni-22Cr-2OFe-7Mo
I
1 2-3.1
2-3.12
B 443 Gr. NO6625
B 333 Gr. NlOOOl
B 434 Gr. NI0003
B 575 Gr. NO6455
B 424 Gr. NO8825
zyxwvuts
B 572 Gr. NO6002
B 435 Gr. NO6002
B 672 Gr. NO8700
B 599 Gr. NO8700
B 649 Gr. NO8904
B 625 Gr. NO8904
I
1 B 621 Gr.NO8320
1
B 581 Gr. NO6985
B 620 Gr. NO8320
B 582 Gr. NO6985
(Table IA continues on next page; Notes follow at end of Table)
11
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
816.5-1996
ASME
TABLE1A
Material
Group
49Ni-25Cr-18Fe-6Mo
Ni-Fe-Cr-Mo-Lpw Cu
3.14
47Ni-22Cr-19Fe-6Mo
3.16
LISTOFMATERIALSPECIFICATIONS(CONT'D)
I 33Ni-42Fe-21Cr
35Ni-19Cr-1?L4Si
Applicable ASTM Specifications'
PressureTemperature
Rating Table
Nominal
Designation
3.13
3.15
zy
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zyxwvu
AND FLANGED FllTlNGS
Forgings
3
I
2-3.15
2-3.16
Plates
Castings
B 581 Gr. NO6975 2-3.1
B 564 Gr. NO8031
B 582 Gr. NO8975
B 625 Gr. NO8031
B 581 Gr. NO6007 2-3.14
B 582 Gr. NO6007
1
NO8810
Gr.
B 564
B 511 Gr. NO8330
I
I
NO8810
Gr.
B 409
B 536 Gr. NO8330
NOTE:
(1) ASME Boiler and Pressure Vessel Code, Section II materials, which also meet the requirements of the listed ASTM specifications, may also be used.
12
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
FLANGES
PIPE
FllTlNGS
zyxwvutsr
zyxwvu
ASME 616.5-1996
TABLE1B LIST OF BOLTING SPECIFICATIONS
Applicable ASTM specification^'^
Bolting Materials [Note (l)]
High Strength
[Note (211
Spec.
No.
___
Grade
Intermediate Strength
[Note ( W
Spec.
No.
Notes
Grade
Nickel and Special Alloy
[Note (511
Low Strength
[Note (411
Notes
Spec.
No.
Grade
A 193
A 193
A 193
A 193
A 193
A 193
A 193
A 193
B8 CI.1
BEC CI.1
BEM CI.1
BET CI.1
B8A
B8CA
BEMA
BETA
(6)
(6)
(6)
(6)
(6)
(6)
(6)
(6)
A307
B
(1
Notes
Spec.
No.
Grade
Notes
(7)(8)(9)
B 166
...
. ..
B 335
N10665
(7)
B 408
., .
(7)(8)(9)
B 473
., .
(7)
~~~
A193
A193
B7
B16
A 320
A 320
A 320
A 320
A 320
L7
L7A
L78
L7C
L43
A 354
A 354
BC
A 193
A 193
A 193
B7M
A 193
A 193
A 193
A 193
A 193
...
...
B5
B6
B6X
.,.
...
B8 C1.2
C1.2
BEC
BEM C1.2
BET C1.2
(1 1)
(11)
(11)
(11)
BE C1.2
BEC C1.2
B8F C1.2
BEM C1.2
BET C1.2
(1 1)
(11)
(11)
(11)
(11)
A449
...
(1
A453
A453
651
660
A
A
A
A
A
320
320
320
320
320
2)
B164
(7)(8)(9)
zyxwvutsrqpon
A 540
A 540
A 540
A 540
ED
B21
B22
B23
B24
(14)
3)
BN10276
574
(7)
A
A
A
A
320
320
320
320
BE CI.1
BEC CI.1
BEM CI.1
BET CI.1
(6)
(6)
(6)
(6)
(14)
GENERAL NOTE: Bolting material shall not be used beyond temperature limits specified in the governing code.
zy
zyxw
NOTES:
(1) Repair welding of bolting material is prohibited.
(2) These bolting materials may be used with all listed materials and gaskets.
(3) These bolting materials may be used with all listed materials and gaskets, provided it has been varified that a sealed joint
can be maintained under rated working pressure and temperature.
(4) These bolting materials may be used with all listed materials but are limited to Classes 150 and 300 joints. See para. 5.4.1
for required gasket practices.
(5) These materials may be used as bolting with comparable nickel and special alloy parts.
(6) This austenitic stainless material has been carbide solution treated but not strain hardened. Use A 194 nuts of corresponding
material.
(7) Nuts may be machined from the same material or may be of a compatible grade of ASTM A 194.
(8) Maximum operating temperature is arbitrarily set at 500°F.unless material has been annealed, solution annealed, or hot
finished because hard temper adversely affects design stress in the creep rupture range.
(9) Forging quality not permitted unless the producer last heating orworking these parts tests them as required for other permitted
conditions in the same specification and certifies their final tensile, yield, and elongation properties to equal or exceed the
requirements for one of the other permitted conditions.
(10) This ferritic material is intended for low temperature service. Use A 194 Grade 4 or Grade 7 nuts.
(11) This austenitic stainless material has been carbide solution treated and strain hardened. Use A 194 nuts of corresponding
material.
(12) This carbon steel fastener shall not be used above 400°F or below -20°F. See also Note (4). Bolts with drilled or undersized
heads shall not be used.
(13) Acceptable nuts for use with quenched and tempered bolts are A 194 Grades 2 and 2H. Mechanical property requirements
for studs shall be the same as those for bolts.
(14) This special alloy is intended for high temperature service with austenitic stainless steel.
(15) ASME Boiler and Pressure Vessel
Code, Section II materials,which also meetthe requirements of the listed ASTM specifications,
may also be used.
13
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
zyxwvutsrqpo
zyxwvutsrq
ASME 616.5-1996
FLANGES
PIPE
AND FLANGED FllTlNGS
TABLE I C FLANGEBOLTING DIMENSIONAL RECOMMENDATIONS
Product
Carbon Steel
Alloy Steel
Stud bolts
ASME B18.2.1
ASME B18.2.1
Bolts smaller than y4in.
ASME 618.2.1, square or
heavy hex head
ASME B18.2.1, heavy hex
head
Bolts equal to or larger than
ASME 618.2.1, square or hex
head
ASME 618.2.1, heavy hex
head
Nuts smaller than y4in.
ASME 618.2.2, heavy hex
ASME 818.2.2, heavy hex
Nuts equal to or larger than
in.
ASME B18.2.2, hex or heavy
hex
ASME 818.2.2, heavy hex
Male threads
ASME 61.1, Cl. 2A course
series
ASME B1.l, Cl. 2A course
series up through 1 in.;
eight thread series for
larger bolts
Female threads
ASME B1.l, Cl. 2B course
series
ASME B1.l, CI. 2B course
series up through 1 in.;
eight thread series for
lamer bolts
q4in.
14
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
zyxwv
zyxwvutsrqp
ASME B16.5-1996
PIPE FLANGES AND FLANGED FITTINGS
TABLES 2
PRESSURE-TEMPERATURE RATINGS FOR
GROUPS 1.1 THROUGH 3.16 MATERIALS
TABLE 2-1.1
Nominal
Designation
RATINGS FOR GROUP 1.1 MATERIALS
c-si
A 105 (1)
C-Mn-Si
A 350 Gr. LF2 (1)
Plates
Castings
Forgings
A 515 Gr. 70 (1)
A 216 Gr. WCB (1)
zyxwvu
A 516 Gr. 70 (1)(2)
A 537 CI. 1 (3)
NOTES:
(1) Upon prolonged exposure to temperatures above 800"F, the carbide phase of steel may be
converted to graphite. Permissible, but not recommended for prolonged use above 800°F.
(2) Not to be used over 850°F.
(3) Not to be used over 700°F.
zyxwvu
WORKING PRESSURES BY CLASSES..PSig
Class
Temp., "F
150
300
400
600
-20 to 100
200
300
400
500
285
260
230
200
170
740
675
655
635
600
990
900
875
845
800
600
650
700
750
800
140
125
110
95
80
550
535
535
505
41O
850
900
950
1O00
65
50
35
20
270
170
105
50
900
1500
2500
1480
1350
1315
1270
1200
2220
2025
1970
1900
1795
3705
3375
3280
3170
2995
6170
5625
5470
5280
4990
730
715
710
670
550
1095
1075
1065
1010
825
1640
1610
1600
1510
1235
2735
2685
2665
2520
2060
4560
4475
355
230
140
70
535
345
205
105
805
515
310
155
1340
860
515
260
2230
1430
860
430
4440
4200
3430
zyxwvutsrq
15
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
STD-ASME
816.5-1996
ASME
zyxwvutsrq
197b
FLANGED
TABLE 2-1.2
Nominal
Designation
AND
FLANGES
PIPE
FllTlNGS
RATINGS FOR GROUP 1.2 MATERIALS
Forgings
Plates
Castings
C-Mn-Si
A 216 Gr. WCC (1)
A 352 Gr. LCC (2)
2'/'Ni
A 352 Gr. LC2
A 203 Gr. B (1)
A 352 Gr. LC3
A 203 Gr. E (1)
zyxwvu
zyxwvu
A 350 Gr. LF3
3'/2Ni
NOTES:
(1) Upon prolonged exposure to temperatures above 800"F, the carbide phase of steel may be
converted to graphite. Permissible, but not recommended for prolonged use above 800°F.
(2) Not to be used over 650°F.
WORKING PRESSURES BY CLASSES, psig
"
Class
Temp., "F
150
300
400
600
900
1500
-20 to 100
200
300
400
500
290
260
230
200
170
750
750
730
705
665
1O00
1500
1500 1
1455 970
2250
2250
3750
3750
3640
3530
3325
885
600
650
700
750
800
140
125
110
95
80
605
590
570
505
410
805
1210
785 1175
755
850
900
950
1O00
65
50
35
20
270
170
105
50
355 535
230 345
140
70
O00
'
1995
1330
1815
3025
2940
2840
2520
1010 670
2060
825 550
1765
1135
1510
1235
2500
2185
2115
1705
6250
6250
6070
5880 940
1410
5540
5040
4905
4730
4200
3430
zyxwvutsrq
16
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
805
51 5
205 310 51
105 155 260
1340
860
5
2230
1430
860
430
zyxwvutsr
zyx
S T D * A S M E B16.5-ENGL
0 7 5 9 b 7 0 0577413 3 1 b E
177b
PIPE FLANGES AND FLANGED FllTlNGS
ASME 816.5-1996
TABLE 2-1.3
Nominal
Designation
RATINGS FORGROUP 1.3 MATERIALS
Plates
Castings
Forgings
A 352 Gr. LCB (3)
c-si
A 515 Gr. 65 (1)
C-Mn-Si
A 516 Gr. 65 (1)(2)
2'/2Ni
A 203 Gr. A (1)
31/2Ni
A 203 Gr. D (1)
zyxwvutsrqpo
zyxwvut
NOTES:
(1) Upon prolonged exposure to temperatures above 800"F, the carbide phase of steel may be
converted to graphite. Permissible, but not recommended for prolonged use above 800°F.
(2) Not to be used over 850°F.
(3) Not to be used over 650°F.
WORKING PRESSURES BY CLASSES, P!rig
I
Class
Temp., 'F
150
300
400
600
900
1500
2500
400
500
265
250
230
200
170
695
655
640
620
585
925
875
850
825
775
1390
1315
1275
1235
1165
2085
1970
1915
1850
1745
3470
3280
31 90
3085
2910
5785
5470
5315
5145
4850
600
650
700
750
800
140
125
110
95
80
535
525
520
475
390
710
695
690
630
520
1O65
1045
1035
945
780
1600
1570
1555
1420
1175
2665
261 5
2590
2365
1955
4440
850
900
950
1O00
65
50
35
20
270
170
105
50
355
230
140
70
535
345
205
105
805
515
310
155
1340
860
515
260
2230
1430
860
430
-20 to 100
200
300
zyxwvuts
17
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
4355
4320
3945
3260
zyxwvutsrqponm
ASME 816.5-1996
PIPE FLANGES AND FLANGED FlTlNGS
TABLE 2-1.4
Nominal
Designation
RATINGS FOR GROUP 1.4 MATERIALS
Forgings
Plates
Castings
c-si
A 515 Gr. 60 (1)
A 350 Gr. LFI, CI. 1 (1)
C-Mn-Si
A 516 Gr. 60 (1)(2)
NOTES:
(1) Upon prolonged exposure to temperatures above 800"F, the carbide phase of steel may be
converted to graphite. Permissible, but not recommended for prolonged use above 800°F.
(2) Not to be used over 850°F.
zyxwvutsrq
zyxwvutsr
WORKING PRESSURES BY CLASSES
Class
Temp., "F
-20 to 100
200
300
400
500
600
650
700
750
800
150
235
300
600
400
530
500
140 455
125
110
80
170
610 915
450
900
1235 825
1850
1125 750 560
1685215
1095 730 550
1640210
1060 705
1585
995 665
1495
620
200
Sig
600
895
895
885
740
370
1370
1345
600 450
1345
590 4451325
95
495
1110
1500
2500
3085
281O
2735
2645
2490
5145
4680
4560
4405
4150
2285
2245
2245
221o
1850
3805
3740
3740
3685
3085
1340
860
515
260
2230
1430
860
430
zyxwvutsrq
850
900
950
1O00
65
50
35
20
270
50
355 535
170 230 345
105 140 205
70
105
18
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
805
515
310
155
-
zyx
zyxwv
0759b70 0 5 7 9 4 1 5 L99 W
S T D . A S M EB L b . 5 - E N G LL 9 9 b
FLANGES
PIPE
ASME 816.5-1996
AND FLANGED FllTlNGS
TABLE 2-1.5
RATINGS FOR GROUP 1.5 MATERIALS
~
Nominal
Designation
C-Y~MO
Forgings
Castings
Plates
A 182 Gr. F1 (1)
A 217 Gr. WC1 (1)(2)
A 352 Gr. LC1 (3)
A 204 Gr. A (1)
A 204 Gr. B (1)
NOTES:
(1) Upon prolonged exposureto temperatures above 875"F, the carbide phase of Carbon-molybdenum steel may be converted to graphite. Permissible, but not recommended for prolonged
use above 875°F.
(2) Use normalized and tempered material only.
(3) Not to be used over 650°F.
WORKING PRESSURES BY CLASSES, psig
Class
Temp., "F
-20 to 100
200
300
400
500
150
300
400
600
260
230
200
170
695
680
655
640
620
925
905
870
1390
1360
605
590
570
530
510
805
785
755
710
675
485
450
280
165
650
600
375
220
265
600
650
700
750
800
140
125
110
95
80
850
900
950
1O00
65
50
35
20
zyxwvu
900
1280 855
1245
1955 1305
1920
1500
2500
3470 2085
3395 2035
3260
3200
3105 1865
5785
5660
5435
5330
5180
2940
2840
2660
2540
5040
4905
4730
4430
4230
2245
1405
825
4060
3745
2345
1370
zyxwvutsrq
830
1210
1175 1765
3025
1705 1135
1595 1065
1525 101 5
1460
975
900
560
330
19
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
1815
1350
845
495
2435
ASME 816.5-1996
FLANGED
TABLE 2-1.7
Nominal
Designation
AND
FLANGES
PIPE
RATINGS FORGROUP 1.7 MATERIALS
Plates
Castings
Forgings
A 204 Gr.
C-V~MO
1/2Cr-'/zMo
zy
zyxw
FllTlNGS
C (1)
A 182 Gr. F2 (3)
Ni-'/zCr-YzMo
A 217 Gr. WC4 (2)(3)
?14Ni-3/4Cr-1Mo
A 217 Gr. WC5 (2)
NOTES:
(1) Upon prolonged exposure to temperatures above 875"F, the carbide phose of carbon-molybdenum steel may be converted to graphite. Permissible, but not recommended for prolonged
use above 875°F.
(2) Use normalized and tempered material only.
(3) Not to be used over,lOOO"F.
WORKING PRESSURES BY CLASSES, psig
zyxwvu
"
Class
Temp., "F
150
300
400
600
-20 to 100
200
300
400
500
290
260
230
200
170
750
750
720
695
665
1O00
1O00
965
925
885
1500
600
650
700
750
800
140
125
110
95
80
605
590
570
530
510
805
785
755
710
675
1210
1175
1135
1065
850
900
950
1O00
1050
65
50
35
20
485
450
315
200
160
650
600
420
270
210
...
2500
1500
900
2250
2165 1445
1995
1815
1765
2940
1705
1595
1525
O
3465
2080
3025
5040
1330
2660
1015
975 1460
900 1350
630 945 1575 2630
405 605 1010
475 315
20
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
z
2435
2245 3745
790
6250 3750
6250 3750 2250
601 5 361
5775
1385
5540 3325
4905
4730
4430
4230
4060
1685
1315
1500
2840
zyx
2540
S T D - A S M E BLb.5-ENGL
zyxwvuts
zyx
Tb1
ASME 816.5-1996
PIPE FLANGES
FITTINGS
AND FLANGED
TABLE 2-1.9
Nominal
Designation
RATINGS FOR GROUP 1.9 MATERIALS
Plates
Castings
Forgings
A 182 Gr. F12 Cl. 2 (1)(2)
lCr-l/zMo
A 217 Gr. WC6 (1)(3)
1’/4Cr-’/zM~
11/4Cr-1/2Mo
A 387 Gr. 11 CI. 2 (2)
A 182 Gr. F11 CI. 2 (1)(2)
NOTES:
(1) Use normalized and tempered material only.
(2) Permissible, but not recommended for prolonged use above 1100°F.
(3) Not to be used over 11 00°F.
zyxwvuts
WORKING PRESSURES BY CLASSES, D!;ig
Class
Temp., “F
150
300
400
600
900
1500
2500
-20 to 100
200
300
400
500
290
260
230
200
170
750
750
720
695
665
1O00
1O00
965
925
885
1500
1500
1445
1385
1330
2250
2250
2165
2080
1995
3750
3750
3610
3465
3325
6250
6250
601 5
5775
5540
600
650
700
750
800
140
125
110
95
80
605
590
570
530
510
805
785
755
710
675
1210
1175
1135
1065
1015
1815
1765
1705
1595
1525
3025
2940
2840
2660
2540
5040
4905
4730
4430
4230
850
900
950
1000
1050
65
50
35
20
485
450
320
215
145
650
600
425
290
190
975
900
640
430
290
1460
1350
955
650
430
2435
2245
1595
1O80
720
4060
3745
2655
1800
1200
...
95
60
40
130
80
50
190
125
75
290
185
115
480
310
190
1100
1150
1200
...
...
...
21
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
zyxw
800
515
315
616.5-1996
ASME
FLANGED
TABLE 2-1.10
zy
zyxw
zyxwvu
AND
PIPE FLANGES
FllTlNGS
RATINGS FOR GROUP 1.10 MATERIALS
Nominal
Designation
Forgings
Castings
2v4Cr-1Mo
A 182 Gr. F22 Cl. 3 (2)
A 217 Gr. WC9 (1)(3)
Plates
A 387 Gr. 22
CI. 2 (2)
NOTES:
(1) Use normalized and tempered material only.
(2) Permissible, but not recommended for prolonged use above 1100°F.
(3) Not to be used over 1100°F.
WORKING PRESSURES BY CLASSES, P:Sig
Class
Temp., 'F
150
300
400
600
900
1500
2500
-20 to 100
200
300
400
500
290
260
230
200
170
750
750
730
705
665
1O00
1O00
970
940
885
1500
1500
1455
1410
1330
2250
2250
2185
2115
1995
3750
3750
3640
3530
3325
6250
6250
6070
5880
5540
600
650
700
750
800
140
125
110
95
80
605
590
570
530
510
805
785
755
710
675
1210
1175
1135
1065
1015
1815
1765
1705
1595
1525
3025
2940
2840
2660
2540
5040
4905
4730
4430
4230
850
900
950
1O00
1050
65
50
35
20
485
450
375
260
175
650
600
505
345
235
975
900
755
520
350
1460
1350
1130
780
525
2435
2245
1885
1305
875
4060
3745
3145
2170
1455
110
70
40
145
90
55
220
135
80
330
205
125
550
345
205
1100
1150
1200
...
...
...
...
22
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
zyx
zyxw
915
570
345
PIPE FLANGES AND FLANGED FllTlNGS
zyxwvutsrq
zy
ASME B16.5-1996
TABLE 2-1.13
Nominal
Designation
RATINGS FOR GROUP 1.13 MATERIALS
A 182 Gr. F5
A 182 Gr. F5a
5Cr-V2Mo
Plates
Castings
Forgings
A 217 Gr. C5 (1)
NOTE:
(1) Use normalized and tempered material only.
WORKING PRESSURES BY CLASSES,
zyxwvu
big
Class
Temp., "F
150
300
400
600
900
1500
2500
-20 to 100
200
300
400
500
290
260
230
200
170
750
745
715
705
665
1O00
995
955
940
a85
1500
1490
1430
1410
1330
2250
2235
2150
21 15
1995
3750
3725
3580
3530
3325
6250
6205
5965
5880
5540
600
650
700
750
140
125
110
95
605
590
570
530
510
ao5
785
755
705
675
1210
1175
1135
1055
1015
1815
1765
1705
1585
1525
3025
2940
2840
2640
2540
5040
4905
4730
4400
4230
241 5
1850
1370
995
720
4030
3085
2285
1655
1200
495
310
170
830
515
285
ao0
ao
a50
900
950
1O00
1050
65
50
35
20
485
370
275
200
145
645
495
365
265
190
965
740
550
400
290
1450
1110
a25
595
430
...
*..
1O0
60
35
135
200
125
70
300
185
105
zyxwvutsrq
zyxwvut
1100
1150
1200
...
...
ao
45
23
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
zyxwvutsrq
zyxwvutsrqp
STD * ASME B L b m S - E N G L
ASME B1651996
PIPE FLANGES AND FLANGED FITTINGS
TABLE 2-1.14 RATINGS FOR GROUP 1.14 MATERIALS
Nominal
Designation
9Cr-1Mo
Forgings
Castings
A 182 Gr. F9
A 217 Gr. C12 (1)
Plates
zyxwvut
NOTE:
(1) Use normalized and tempered material only.
WORKING PRESSURES BY CLASSES, P:Sig
Class
Temp., "F
150
300
400
600
900
1500
2500
-20 to 100
200
300
400
500
290
260
230
200
170
750
750
730
705
665
1O00
1000
970
940
885
1500
1500
1455
1410
1330
2250
2250
2185
2115
1995
3750
3750
3640
3530
3325
6250
6250
6070
5880
5540
600
650
700
750
800
140
125
110
95
80
605
590
570
530
510
805
785
755
710
675
1210
1175
1135
1065
1015
1815
1765
1705
1595
1525
3025
2940
2840
2660
2540
5040
4905
4730
4430
4230
850
900
950
1O00
1050
65
50
35
20
485
450
375
255
170
650
600
505
340
230
975
900
755
505
345
1460
1350
1130
760
515
2435
2245
1885
1270
855
4060
3745
3145
2115
1430
...
115
75
50
150
1O0
70
225
150
105
340
225
155
565
375
255
945
630
430
1100
1150
1200
...
...
...
24
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
zyx
ASME 816.5-1996
PIPE FLANGES AND FLANGED FllTlNGS
FOR GROUP 2.1MATERIALS
TABLE 2-2.1RATINGS
Nominal
Designation
18Cr-8Ni
Forgings
Castings
Plates
A 182 Gr. F304 (1)
A 351 Gr. CF3 (2)
A 240 Gr. 304 (1)
A 182 Gr. F304H
A 351 Gr. CF8 (1)
A 240 Gr. 304H
zyxwvu
NOTES:
(1) At temperatures over lOOO"F, use only when the carbon content is 0.04% or higher.
(2) Not to be used over 800°F.
WORKING PRESSURES BY CLASSES, P5;ig
Class
Temp., "F
900
1500
2500
1440
1200
1oao
995
930
2160
1800
1620
1490
1395
3600
3000
2700
2485
2330
6000
5000
4500
4140
3880
540
a75
860
850
830
805
1310
1290
1275
1245
1210
2185
21 50
2125
2075
2015
3640
3580
3540
3460
3360
395
390
380
320
310
530
520
510
430
41O
790
780
765
640
615
1190
1165
1145
965
925
1980
1945
1910
1605
1545
3300
3240
31ao
2675
2570
...
...
...
...
...
255
200
155
115
a5
345
265
205
150
115
515
400
310
225
170
770
595
465
340
255
1285
995
770
565
430
2145
1655
I 285
945
715
...
...
...
...
60
50
35
25
ao
125
95
70
55
185
145
105
310
240
170
135
515
400
285
230
300
400
600
275
230
205
190
170
720
600
540
495
465
960
140
125
110
95
80
435
430
425
415
405
580
575
565
555
65
50
35
20
1100
1150
1200
1250
1300
1350
1400
1450
1500
-20 to 100
200
300
400
500
600
650
700
750
ao0
720
660
620
zyx
zyxwvutsrq
zyxwvut
ao0
a50
900
950
1O00
1050
...
65
45
35
25
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
ao
616.5-1996
ASME
FllTlNGS
TABLE 2-2.2
zy
RATINGS FOR GROUP 2.2 MATERIALS
Nominal
Designation
Castings
Forgings
16Cr-12Ni-2Mo
A 182 Gr. F316H
Plates
A 240 Gr. 316 (1) A 351 Gr. CF3M (2) A 182 Gr. F316 (1
A 240 Gr. 316H
A 351 Gr. CF8M (1)
A 240 Gr. 317 (1)
18Cr-13Ni-3Mo
19Cr-ION¡-3Mo
A 351 Gr. CG8M (3)
NOTES:
(1) At temperatures over 1000°F, use only when the carbon content is 0.04% or higher.
(2) Not to be used over 850°F.
(3) Not to be used over 1000°F.
WORKING PRESSURES BY CLASSES, psig
Class
Temp., "F
T
1500
2500
-20 to 100
200
300
400
500
275
235
215
195
170
720
620
560
515
480
960
825
745
685
635
1440
1240
1120
1025
955
2160
1860
1680
1540
1435
3600
3095
2795
2570
2390
6000
5160
4660
4280
3980
600
650
700
750
800
140
125
110
95
80
450
445
430
425
420
600
590
580
570
565
900
890
870
855
845
1355
1330
1305
1280
1265
2255
2220
2170
21 35
2110
3760
3700
3620
3560
3520
850
900
950
1O00
1050
65
50
35
20
...
420
415
385
350
345
555
555
515
465
460
835
830
775
700
685
1255
1245
1160
1050
1030
2090
2075
1930
1750
1720
3480
3460
3220
2915
2865
1100
1150
1200
1250
1300
...
...
...
...
...
305
235
185
145
115
405
315
245
195
155
610
475
370
295
235
915
710
555
350
1525
1185
925
735
585
2545
1970
1545
1230
970
95
75
60
40
130
1O0
80
55
190
150
115
85
290
225
175
125
480
380
290
205
800
630
485
345
1350
1400
1450
1500
...
a . .
...
...
zyxwvut
zyx
26
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
440
D
AND
zyxwvutsrqponm
zyxwvutsr
PIPE FLANGES
RATINGS FOR GROUP 2.3 MATERIALS
TABLE 2-2.3
Nominal
Designation
Plates
Castings
Forgings
16Cr-12Ni-2Mo
A 182 Gr. F316L
A 240 Gr. 316L
18Cr-8Ni
A 182 Gr. F304L (1)
A 240 Gr. 304L (1)
NOTE:
(1) Not to be used over 800°F.
zyxwvutsr
zyxw
zyx
WORKING PRESSURES BY CLASSES, psig
Class
Temp., "F
-20 to 100
200
300
400
500
600
150
230
195
175
140 360
125 650
700
750
800
95
850
65
600
300
400
455
415
380
800 600
675 505
605
550
510
160
145
350
345 110
335
330 80
320
480
470
460
450
720
440
430
645
27
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
1200
101 5
91o
825
900
1500
2500
1360
1240
1145
3000 1800
2530 1520
2270
2065
1910
5000
4220
3780
3440
3180
1750
1715
1680
1645
3000
2920
2860
2800
2740
1610
2680
765
1080 1800
1050 700
1030 685
1010 670
985 660
965
zyxwvutsr
zyx
S T D O A S M E BLb-5-ENGL
LTL
ASME 616.5-1996
PIPE FLANGES AND FLANGED FllTlNGS
TABLE 2-2.4
Nominal
Designation
18Cr-ION¡-Ti
RATINGS FOR GROUP 2.4 MATERIALS
Forgings
Plates
Castings
A 240 Gr. 321 (2)
A 240 Gr. 321H (1)
A 182 Gr. F321 (2)
A 182 Gr. F321H (1)
NOTES:
(1) At temperatures over IOOO'F, use only if the material is heat treated by heating to a minimum
temperature of 20OOOF.
(2) Not to be used over 1000°F.
WORKING PRESSURES BY CLASSES, psig
Class
Temp., 'F
150
300
-20 to 100
200
300
400
500
275
245
230
200
170
720
645
595
550
515
960
860
795
735
685
1440
1290
1190
1105
1030
600
650
700
750
800
140
125
110
95
80
485
480
465
460
450
650
635
620
610
600
850
900
950
1O00
1050
65
50
35
20
445
440
385
355
315
...
1100
1150
1200
1250
1300
1350
1400
1450
1500
...
...
...
...
...
...
...
...
...
1500
2500
2160
1935
1785
1655
1545
3600
3230
2975
2760
2570
6000
5380
4960
4600
4285
975
955
930
915
900
1460
1435
1395
1375
1355
2435
2390
2330
2290
2255
4060
3980
3880
3820
3760
595
590
515
475
415
895
885
775
715
625
1340
1325
1160
1070
940
2230
2210
1930
1785
1565
3720
3680
3220
2970
2605
270
235
185
140
110
360
315
245
185
145
545
465
370
280
220
815
710
555
420
330
1360
1185
925
705
550
2265
1970
1545
1170
915
85
65
50
40
115
85
70
50
170
130
105
75
255
195
155
115
430
325
255
190
715
545
430
315
zyx
zyxwvut
zyxw
28
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
zyxwvut
zyx
zyxwvutsrqpon
STD-ASME BLb-5-ENGL
0 5 7 9 4 2 5 O38
ASME B16.5-1996
PIPE FLANGES
FITTINGS
AND FLANGED
RATINGS FOR GROUP 2.5 MATERIALS
TABLE 2-2.5
Nominal
Designation
18Cr-1ONi-Cb
m
Plates
Forgings
Castings
A 182 Gr. F347 (2)
A 182 Gr. F347H (1)
A 182 Gr. F348 (2)
A 182 Gr. F348H (1)
A 351 Gr.CF8C (3)
A
A
A
A
240 Gr. 347 (2)
240 Gr. 347H (1)
240 Gr. 348 (2)
240 Gr. 348H (1)
NOTES:
(1) For temperatures over 1000°F, use only if the materialis heat treated by heating to a minimum
temperature of 2000°F.
(2) Not to be used over 1000°F.
(3) At temperatures overIOOWF, use the material only when the carbon content
0.04%
is or higher.
zyxwvu
WORKING PRESSURES BY CLASSES, DSig
Class
Temp., "F
150
300
400
600
900
1500
2500
-20 to 100
200
300
400
500
275
255
230
200
170
720
660
615
575
540
960
880
820
765
720
1440
1320
1230
1145
1O80
21 60
1980
1845
1720
1620
3600
3300
3070
2870
2700
6000
5500
5120
4780
4500
140
125
110
95
80
515
505
495
490
485
685
670
660
655
650
1025
1010
990
985
975
1540
1510
1485
1475
1460
2570
2520
2470
2460
2435
4280
4200
4120
41O0
4060
65
50
35
20
485
450
385
365
360
645
600
515
485
480
970
900
775
725
720
1455
1350
1160
1O90
1080
2425
2245
1930
1820
1800
4040
3745
3220
3030
'3000
1100
1150
1200
1250
1300
*..
325
275
170
125
95
430
365
230
165
125
645
550
345
245
185
965
825
515
370
280
1610
1370
855
615
465
2685
2285
1430
1030
770
1350
1400
1450
1500
...
...
70
55
40
35
90
75
55
45
135
110
80.
70
205
165
125
105
345
275
205
170
570
455
345
285
600
650
700
750
800
850
900
950
1O00
1050
...
. ..
...
...
...
...
...
zyxwvuts
29
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
816.5-1996
zyxwv
ASME
FLANGED
PIPE FLANGES AND
TABLE 2-2.6RATINGS
Nominal
Designation
FITTINGS
FORGROUP 2.6MATERIALS
Plates
Castings
Forgings
A 240 Gr. 3095 (1)(2)(3)
A 240 Gr. 309H
23Cr-12Ni
zyxwvutsrq
zyxwvutsr
zyxwvut
Gr. CH8 (1)
A 351 Gr. CH20 (1)
25Cr-12Ni A 351
NOTES:
(1) At temperatures over IOOO'F, use only when the carbon content is 0.04% or higher.
(2) For temperatures above 1000°F, use only if thematerial solution is heat treated to the minimum
temperature specified in the specification but not lower than 1900°F. and quenching in water
or rapidly cooling by other means.
(3) This material should be used for service temperatures 1050°F and above only when assurance
is provided that grain size is not finer than ASTM 6.
WORKING PRESSURES BY CLASSES. L:,Sig
Class
Temp., "F
150
-20 to 100
200
300
400
500
260
230
220
200
170
600
650
700
750
800
140
125
110
95
80
850
900
950
1O00
1050
65
50
35
20
a . .
300
400
600
900
1500
2500
670
605
570
535
505
895
805
760
710
670
1345
1210
1140
1065
1010
2015
1815
1705
1600
1510
3360
3025
2845
2665
2520
5600
5040
4740
4440
4200
480
465
455
445
435
635
620
610
595
580
955
930
910
895
870
1435
1395
1370
1340
1305
2390
2330
2280
2230
21 70
3980
3880
3800
3720
3620
425
41 5
385
335
290
565
555
515
450
390
850
830
775
670
585
1275
1245
1160
1010
87 5
2125
2075
1930
1680
1460
3540
3460
3220
2800
2430
1100
1150
1200
1250
1300
...
...
225
170
130
1O0
80
300
230
175
135
105
445
345
260
200
160
670
515
390
300
235
1115
860
650
495
395
1860
1430
1085
830
660
1350
1400
1450
1500
...
60
45
30
25
80
60
40
30
115
90
60
50
175
135
95
70
290
225
155
120
485
370
260
200
...
...
...
...
...
...
30
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
FLANGED
PIPE FLANGES AND
FllTlNGS
TABLE2-2.7RATINGS
Nominal
Designation
FOR GROUP2.7MATERIALS
Forgings
A 182 Gr. F310 (1)(3)
250-20Ni
zy
zyxwv
zyxwvut
zyxwvut
ASME 616.5-1996
Castings
Plates
A 351 Gr. CK20 (1)
A 240 Gr. 310s (1)(2)(3)
A 240 Gr. 310H
NOTES:
(1) At temperatures over 1000°F, use only when the carbon content is 0.04% or higher.
(2) For temperatures above 1000°F. use only if the material is heat treated by heating it to a
temperature of at least 1900°F and quenching in water or rapidly cooling by other means.
(3) Service temperatures of 1050°F and above should be used only when assurance is provided
that grain size is not finer than ASTM 6.
WORKING PRESSURES BY CLASSES, Pig
Class
Temp., 'F
150
300
400
600
900
1500
2500
-20 to 100
200
300
400
500
260
235
220
200
170
670
605
570
535
505
895
810
760
715
675
1345
1215
1140
1070
1015
2015
1820
1705
1605
1520
3360
3035
2845
2675
2530
5600
5060
4740
4260
4220
600
650
700
750
800
140
125
110
95
80
480
470
455
450
435
640
625
61O
600
580
960
935
910
900
875
1440
1405
1370
1345
1310
2400
2340
2280
2245
2185
4000
3900
3800
3740
3640
850
900
950
1O00
1050
65
50
35
20
...
425
420
385
345
335
575
555
515
460
450
855
835
775
685
670
1280
1255
1160
1030
1010
2135
2090
1930
1720
1680
3560
3480
3220
2865
2800
1100
1150
1200
1250
1300
...
...
...
...
...
260
190
135
105
75
345
250
185
135
1O0
520
375
275
205
150
780
565
410
310
225
1305
945
685
515
375
2170
1570
1145
855
630
1350
1400
1450
1500
...
60
45
35
25
80
60
45
35
115
90
65
50
175
135
1O0
75
290
225
165
130
485
370
275
215
...
...
...
31
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
zyxwvuts
zy
S T D - A S M E B L b * S - E N G L L77b
816.5-1996
ASME
AND FLANGED FllTlNGS
zyxwvutsr
I
TABLE 2-2.8
Nominal
Designation
20Cr-18Ni-6Mo
RATINGS FOR GROUP 2.8 MATERIALS
I
Forgings
Castings
A 351 Gr. CK3MCuN
A 182 Gr. F44
A 182 Gr. F51 (1)
22Cr-5Ni-3Mo-N
Plates
A 240 Gr. S31254
A 240 Gr. S31803 (1)
zyxwvutsr
A 240 Gr. S32750 (1)
A 182 Gr. F53 (1)
25Cr-7Ni-4Mo-N
I
NOTE:
(1) This steel may become brittle after service at moderately elevated temperatures. Not to be
used over 600°F.
zyxwvutsrqpon
zy
WORKING PRESSURES BY CLASSES, psig
Class
Temp., "F
-20 to 100
200
300
400
500
600
650
700
750
I
I
150
290
260
I
300
750
200
170
615
575
140
555
110
95
540
530
I
I
400
1O00
1500
960 720
1440
885 665 2301330
820
1230
770
1150
2250
21 60
740
735 550
725
710
1670 2785
1650
1625
1595
32
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
1
600
1115
1251100
1085
1065
3325
1995
1845
1730
4640
2750
2710
2660
6250 3750
6000 3600
5540
5120 3070
4800 2880
4580
4520
4430
ANGES
PIPE
FlTlNGS
zyxwvutsr
ASME 816.5-1996
TABLE 2-3.1
Nominal
Designation
RATINGS FOR GROUP 3.1 MATERIALS
A 351 Gr. CN7M 12)(3)
28Ni-19Cr-Cu-Mo
35Ni-35Fe-20Cr-Cb
Plates
Castings
Forgings
B 463 Gr. NO8020 (1)
B 462 Gr. NO8020 (1)
NOTES:
(1) Use annealed material only.
(2) Use solution annealed material only.
(3) Ratings apply for 300°F and lower.
zyxwvutsrqp
zyxwvutsr
WORKING PRESSURES BY CLASSES, psig
Temp., "F
-20 to 100
200
300
400
500
600
650
700
750
800
150
200
170
110
80
300
600 230
520
490 190
490 190
490
490 140
490 125
490
490 95
490
400
600
900
1500
2500
1800
1565
1470
1470
655
1200 800
1045 695
980 655
980 655
980
3000
2610
2450
2450
2450
1470
5000
4350
4080
4080
4080
2450 1470
2450 1470
2450 1470
2450
2450 1470
4080
4080
4080
4080
4080
655
980
980 655
980
980 655
980 655
655
33
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
1470
616.5-1996
zyxw
ASME
FITTINGS
AND FLANGED
TABLE 2-3.2RATINGS
Nominal
Designation
Forgings
Plates
Castings
B 160 Gr. NO2200 (1)(2)
99.ONi
~~~
FOR GROUP 3.2MATERIALS
B 162 Gr. NO2200 (1)
~
NOTES:
(1) Use annealed material only.
(2) The chemical composition, mechanical properties, heat treating requirements, and grain size
requirements shall conform to the applicable ASTM specification. The manufacturing procedures, tolerances, tests, certification, and markings shall be in accordance with ASTM B 564.
zyxwvuts
zyxwv
zy
WORKING PRESSURES BY CLASSES, psig
Class
Temp., "F
-20 to 100
150
140
140
300
400
500
140
600
140
300
400
360
480
200
360
480
900
720
480 360
720
480 360 140720
720
480 360
480 360 140 720
1080
1080
1080
1080
1080
720
1080
34
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
600
1500
I
2500
3000
ANGES
PIPE
zyxwv
AND FLANGED FllTlNGS
B16.5-1996
TABLE 2-3.3
ASME
RATINGS FOR GROUP 3.3 MATERIALS
Nominal
Designation
Forgings
99.ONi-Low C
B 160 Gr. NO2201 (1)(2)
Plates
Castings
B 162 Gr. NO2201 (1)
NOTES:
(1) Use annealed material only.
(2) The chemical composition, mechanical properties, heat treating requirements, and grain size
requirements shall conform to the applicable ASTM specification. The manufacturing procedures, tolerances, tests, certification, and markings shall be in accordance with ASTM B 564.
zyxwvut
WORKING PRESSURES BY CLASSES. PSig
Class
Temp., "F
900
1500
zyxw
2500
150
300
400
90
a5
a5
a5
85
240
230
225
215
215
320
305
300
290
290
480
455
445
430
430
720
685
670
650
650
1200
1140
1115
1oao
I oao
600
650
700
750
800
85
a5
85
80
80
215
215
215
210
205
290
290
290
280
270
430
430
430
420
410
650
650
650
635
610
1080
1oao
1oao
1055
1020
850
900
950
1O00
1050
65
50
35
20
205
140
115
95
75
270
185
150
125
1O0
410
380
230
1a5
150
610
415
345
280
220
1020
695
570
465
370
1700
1155
950
770
615
...
60
45
35
80
60
50
125
95
75
185
140
110
310
230
185
515
385
310
-20 to 100
200
300
400
500
600
2000
1900
1860
1800
1ao0
1ao0
1ao0
1ao0
1760
1700
zyxwvutsrqp
1100
1150
1200
...
...
...
35
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
ASME B16.5-1996
FLANGED
TABLE 2-3.4
Nominal
Designation
FLANGES
PIPE
FllTlNGS
zy
RATINGS FOR GROUP 3.4 MATERIALS
Forgings
Plates
Castings
Gr. NO4400 (1)
67Ni-30Cu B 127
67Ni-30Cu-S
AND
Gr. NO4400 (1) B 564
B 164 Gr. NO4405 (1)(2)
NOTES:
(1) Use annealed material only.
(2) The chemical composition, mechanical properties, heat treating requirements, and grain size
requirements shall conform to the applicable ASTM specification. The manufacturing procedures, tolerances, tests, certification, and markings shall be in accordance with ASTM B 564.
zyxwvu
WORKING PRESSURES BY CLASSES,p1sig
Class
Temp., ‘F
150
-20 to 100
230
400
300
400
600
200 200
530
185
170 500
495 190
480
475
600 140 475
650 125 475
700 110 475
750
800
80
470
460
850
900
50
340
245
65
95
600
900
1500
2500
800
705
300660
635
635
1200
1055
990
955
950
1800
1585
1485
1435
1435
3000
2640
2470
2390
2375
5000
4400
4120
3980
3960
635
635
635
625
610
950
950
950
935
915
1435
1435
1435
1405
1375
2375
2375
2375
2340
2290
3960
3960
3960
3900
3820
680
495
1020
740
1695
1235
2830
2055
455
340
zyxwvu
zy
36
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
zyx
zyxwvutsrq
~
zyxwvutsrqponmlkjihgfedcbaZYXWVUTSRQPONMLKJIHGFEDCBA
S T D - A S M E B1b-5-ENGL 177b
NGES
PIPE
FlTlNGS
ASME 816.5-1996
TABLE 2-3.5
~
~
~~~
0 7 5 7 b 7 0 0577433 104 I
~~
RATINGS FOR GROUP 3.5 MATERIALS
~
Nominal
Designation
Forgings
72Ni-15Cr-8Fe
B 564 Gr. NO6600 (1)
Plates
Castings
B 168 Gr. NO6600 (1)
NOTE:
(1) Use annealed material only.
WORKING PRESSURES BY CLASSES, psig
zyxwvu
Class
Temp., F'
150
300
400
600
900
1500
2500
-20 to 100
200
300
400
500
290
260
230
200
170
750
750
730
705
665
1O00
1O00
970
940
885
1500
1500
1455
1410
1330
2250
2250
2185
2115
1995
3750
3750
3640
3530
3325
6250
6250
6070
5880
5540
600
650
700
750
800
140
125
110
95
80
605
590
570
530
510
805
785
755
710
675
1210
1175
1135
1065
1015
1815
1765
1705
1595
1525
3025
2940
2840
2660
2540
5040
4905
4730
4430
4230
850
900
950
1O00
1050
65
50
35
20
485
450
325
215
140
650
600
435
290
185
975
900
655
430
280
1460
1350
980
650
41 5
2435
2245
1635
1080
695
4060
3745
2725
1800
1155
95
70
60
125
90
80
185
135
125
280
205
185
465
340
310
1100
1150
1200
S
.
.
...
...
.
I
.
37
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
770
565
51 5
816.5-1996
ASME
FLANGES
TABLE 2-3.6
Nominal
Designation
33Ni-42Fe-21Cr
zy
zyxwvu
zyxwvu
PIPE
AND FLANGED FllTlNGS
RATINGS FOR GROUP 3.6 MATERIALS
Forgings
Castings
B 564 Gr. NO8800 (1)
Plates
B 409 Gr. NO8800 (1)
NOTE:
(1) Use annealed material only.
WORKING PRESSURES BY CLASSES, P!Pig
I
Class
Temp., "F
150
300
400
600
SOO
1500
2500
-20 to 100
200
300
400
500
275
255
230
200
170
720
660
625
600
580
960
885
830
800
770
1440
1325
1250
1200
1155
2160
1990
1870
1800
1735
3600
3310
3120
3000
2890
6000
5520
5200
5000
4820
600
650
700
750
800
140
125
110
95
80
575
570
565
530
505
765
760
750
710
675
1145
1140
1130
1065
1015
1720
1705
1690
1595
1520
2870
2845
2820
2660
2535
4780
4740
4700
4430
4230
850
900
950
1O00
1050
65
50
35
20
485
450
385
365
360
650
600
515
485
480
975
900
775
725
720
1460
1350
1160
1O90
1080
2435
2245
1930
1820
1800
4060
3745
3220
3030
3000
...
...
325
275
205
130
60
430
365
270
175
80
645
550
405
260
125
965
825
610
390
185
1610
1370
1020
650
310
2685
2285
1695
1080
515
50
35
30
25
65
45
40
35
100
70
60
50
150
1O0
95
75
245
170
155
125
410
285
255
205
1100
1150
1200
1250
1300
1350
1400
1450
1500
...
...
...
...
...
...
...
...
38
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
zyxwvu
zyxwvutsrqpon
zyxwvutsrqpon
zyxwvutsr
ASME B16.5-1996
PIPE FLANGES AND FLANGED FITTINGS
TABLE 2-3.7
RATINGS FOR GROUP 3.7 MATERIALS
Nominal
Designation
Forgings
65Ni-28Mo-2Fe
B 335 Gr. N10665 (1)(2)
Plates
Castings
B 333 Gr. N10665 (1)
NOTES:
(1) Use solution annealed material only.
(2) The chemical composition, mechanical properties, heat treating requirements, and grain size
requirements shall conform to the applicable ASTM specification. The manufacturing procedures, tolerances, tests, certification, and markings shall be in accordance with ASTM B 564.
~
zyxwvutsr
WORKING PRESSURES BY CLASSES, psig
Class
Temp., 'F
-20 to 100
200
300
400
500
600
650
700
750
800
150
300
400
290
750
750 260
1O00
1O00
600
1500
2250
1500
2185
1455 970 730
230
2115
1410 940 705
1995
1330 885
200
170
140 605
125
110
95
80
665
805 1210
590
570
530
510
1815
785
755
1175
1135
1065 710
1015
675
39
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
900
1500
2500
3325
6250 3750 2250
6250 3750
6070 3640
5880 3530
5540
3025
2940
1765
2660
1595
1705
1525
zyx
5040
4905
4730 2840
4430
4230 2540
816.5-1996
ASME
zy
zyxw
zyxwv
zyxw
zyxwv
I
AND FLANGED FllTlNGS
TABLE 2-3.8
RATINGS FOR GROUP 3.8 MATERIALS
Nominal
Designation
Forgings
Plates
Castings
54Ni-16Mo-15Cr
B 564 Gr. N10276 (1)(4)
B 575 Gr. N10276 (1)(4)
60Ni-22Cr-9Mo-3.5Cb
B 564 Gr. NO6625 (3)(5)
B 443 Gr. NO6625 (3)(5)
62Ni-28Mo-5Fe
B 335 Gr. N10001 (1)(2)(6)
B 333 Gr. NlOOOl (1)(6)
70Ni-16Mo-7Cr-5Fe
B 573 Gr. N10003 (2)(3)
B 434 Gr. N10003 (3)
61Ni-16Mo-16Cr
B 574 Gr. NO6455 (1)(2)(6)
B 575 Gr. NO6455 (1)(6)
42Ni-21.5Fe-3Cr-2.3Cu
B 564 Gr. NO8825 (3)(7)
B 424 Gr. NO8825 (3)(7)
NOTES:
(1) Use solution annealed material only.
(2) The chemical composition, mechanical properties, heat treating requirements, and grain size
requirements shall conform to the applicable ASTM specification. The manufacturing procedures, tolerances, tests, certification, and markings shall be in accordance with ASTM B 564.
(3) Use annealed material only.
(4) Not to be used over 1250°F.
(5) Not to be used over 1200°F. Alloy NO6625 in the annealed condition is subject to severe loss
of impact strength at room temperatures after exposure in the range of 1000°F to 1400°F.
(6) Not to be used over 800°F.
(7) Not to be used over 1000°F.
WORKING PRESSURES BY CLASSES, P!Sig
Class
Temp., "F
150
300
400
-20 to 100
200
300
400
500
290
260
230
200
170
750
750
730
705
665
600
650
700
750
800
140
125
110
95
80
850
900
950
1000
1050
65
50
35
20
1100
1150
1200
1250
1300
...
...
...
...
...
I
...
600
WO
1500
2500
1O00
1O00
970
940
885
1500
1500
1455
1410
1330
2250
2250
21 85
21 15
1995
3750
3750
3640
3530
3325
6250
6250
6070
5880
5540
605
590
570
530
510
805
785
755
710
675
1210
1175
1135
1065
1015
1815
1765
1705
1595
1525
3025
2940
2840
2660
2540
5040
4905
4730
4430
4230
485
450
385
365
360
650
600
515
485
480
975
900
775
725
720
1460
1350
1160
1O90
1080
2435
2245
1930
1820
1800
4060
3745
3220
3030
3000
325
275
185
145
110
430
365
245
195
145
645
550
370
295
215
965
825
555
440
325
1610
1370
925
735
540
2685
2285
1545
1220
900
zyxwvut
40
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
zyxwvutsrqpo
ASME 616.5-1996
PIPE FLANGES
FITTINGS
AND FLANGED
TABLE 2-3.9RATINGS
Nominal
Designation
FOR GROUP 3.9MATERIALS
Forgings
B 572 Gr. NO6002 (1)(2)
47Ni-22Cr-gMo-18Fe
Plates
Castings
B 435 Gr. NO6002 (1)
NOTES:
(1) Use solution annealed material only.
(2) The chemical composition, mechanical properties, heat treating requirements, and grain size
requirements shall conform to the applicable ASTM specification. The manufacturing procedures, tolerances, tests, certification, and markings shall be in accordance with ASTM B 564.
zyxwvutsrq
zyxwvut
WORKll i PRESSURE5 #Y CLASSES,
Class
Temp., "F
150
300
-20 to 100
200
300
400
500
290
260
230
200
170
750
750
680
600
575
600
650
700
750
800
140
125
110
95
80
850
900
950
1O00
1050
Sig
400
600
900
1500
2500
1O00
1O00
905
795
770
1500
1500
1360
1195
1150
2250
2250
2040
1795
1730
3750
3750
3395
2990
2880
6250
6250
5660
4980
4800
560
560
560
530
510
745
745
745
710
675
1120
1120
1120
1065
1015
1680
1680
1680
1595
1525
2795
2795
2795
2660
2540
4660
4660
4660
4430
4230
65
50
35
20
485
450
385
365
360
650
600
515
485
480
975
900
775
725
720
1460
1350
1160
1O90
1080
2435
2245
1930
1820
1800
4060
3745
3220
3030
3000
1100
1150
1200
1250
1300
...
325
275
205
180
140
430
365
275
245
185
645
550
410
365
275
965
825
620
545
410
1610
1370
1030
910
685
2685
2285
1715
1515
1145
1350
1400
1450
1500
...
140
1O0
80
55
205
150
115
85
31O
225
175
125
515
380
290
205
860
630
485
345
...
...
...
...
...
...
...
...
105
75
60
40
zyxwvutsrq
\
41
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
zyxwvutsrqpon
PIPE FLANGES AND FLANGED FllTlNGS
ASME 816.5-1996
RATINGS FOR GROUP 3.10 MATERIALS
TABLE 2-3.10
Nominal
Designation
B 599 Gr. NO8700 (1)
B 672 Gr. NO8700 (1)(2)
25Ni-46Fe-21Cr-5Mo
Plates
Castings
Forgings
NOTES:
(1) Use solution annealed material only.
(2) The chemical composition, mechanical properties, heat treating requirements, and grain size
requirements shall conform to the applicable ASTM specification. The manufacturing procedures, tolerances, tests, certification, and markings shall be in accordance with ASTM B 564.
zyxwvuts
zy
WORKING PRESSURES BY CLASSES. psig
Class
Temp., "F
900
1440
815 610 1701225
500
2160
2160 1440
2040 1360
1920 1280
1835
1190 1780
760 570 125 650
1705
300
400
260 200
230 300
200 400
720
680
960 720
960
905
-20 to 100 275
600 140 595 790
42
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
1500
600
150
3600
3600
3400
855 640
3060
2970
1140
2500
6000
6000
5670
5340 3205
5100
4950
4740 2845
AND
zyxwvutsrqponm
zyxwvuts
zyxwvutsrqp
zyxwvutsr
zyx
PIPE FLANGES
TABLE 2-3.11
RATINGS FOR GROUP 3.11 MATERIALS
Nominal
Designation
B 625 Gr. NO8904 (1)
B 649 Gr. NO8904 (1)(2)
44Fe-25Ni-21Cr-Mo
~
Plates
Castings
Forgings
~~
~
NOTES:
(1) Use annealed material only.
(2) The chemical composition, mechanical properties, heat treating requirements, and grain size
requirements shall conform to the applicable ASTM specification. The manufacturing procedures, tolerances, tests, certification, and markings shall be in accordance with ASTM B 564.
WORKING PRESSURES BY CLASSES,
Sig
Class
1
Temp., 'F
150
300
400
600
900
-20 to 100
200
300
400
500
245
640
600 230
545
495 190
855
800
725
660
610 455
1280
1200
1085
995
915
1920
1805
1630
1490
1370
3205
3005
2720
2485
2285
600
140
125
110
1295
1265
1230
2160
2105
2050
650
700
210
170
430
420
41O
865 575
840
820
560
545
43
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
1500
I
2500
5340
5010
4530
4140
381O
3600
351O
3420
STD.ASME B L b . 5 - E N G L
816.5-1996
L99b
zyxwv
zyx
zyx
0 7 5 9 b 7 0 0579440 3 4 4
m
ASME
FllTlNGS
RATINGS FOR GROUP3.12MATERIALS
TABLE 2-3.12
Nominal
Designation
Forgings Plates
Castings
26Ni-43Fe-22Cr-5Mo
B 621 Gr. NO8320 (1)(2)
B 620 Gr. NO8320 (1)
47Ni-22Cr-20Fe-7Mo
B 581 Gr. NO6985 (1)(2)
B 582 Gr. NO6985 (1)
NOTES:
(1) Use solution annealed material only.
(2) The chemical composition, mechanical properties, heat treating requirements, and grain size
requirements shall conform to the applicable ASTM specification. The manufacturing procedures, tolerances, tests, certification, and markings shall be in accordance with ASTM B 564.
zyxwvuts
zyxw
WORKING PRESSURES BY CLASSES, psig
Class
Temp., 'F
-20 to 100
200
400
600
650
700
750
150
300
400
895
200
670
625 240
585 225
535
260
140
95
80
475
800
465
450
445
430
125
110
1245
300780
5
665 500
635
620
44
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
1500
900
600
830
1701O00
500
950
1425
900
885
600
590
2500
3360 201 5 5600
1345
3115 1870
5190
2935
1760 1175
4890
1610 1075 71 2680
4470
4170 2500
2375 3960
1395 930
1330
1295
865
2320
2250
2215
575
1350
3870
3750
3690
3600 21 60
1500
AND
zyxwvutsrqponm
PIPE FLANGES
TABLE2-3.13RATINGS
FOR GROUP 3.13MATERIALS
~
I
Nominal
Designation
Forgings
~~~~~
Castings
~
Plates
~~~~
~~~
49Ni-25Cr-18Fe-6Mo
B 581 Gr. NO6975 (1)(2)
B 582 Gr. NO6975 (1)
Ni-Fe-Cr-Mo-Low
B 564 Gr. NO8031 (3)
B 625 Gr. NO8031 (3)
Cu
NOTES:
(1) Use solution annealed material only.
(2) The chemical composition, mechanical properties, heat treating requirements, and grain size
requirements shall conform to the applicable ASTM specification. The manufacturing procedures, tolerances, tests, certification, and markings shall be in accordance with ASTM B 564.
(3) Use annealed material only.
zyxwv
zyx
zyxwvutsr
zyxw
WORKING PRESSURES BY CLASSES, psig
Class
Temp., "F
150
300
400
-20 to 100
200
300
400
500
290
260
230
705
1000 750
940
885 660
600
650
700
750
800
140
600
BOO
1500
1500
1410
2250
2115
3750
6250
3530
5880
5520
3310 1985 1325
31 70 1900 5280
2970 1780
4950
1265
1190
560
555
125
530
95
635
595
200
170
1685
1125
1105
1085 725 545
1065 710
1015 675 510
750
735
110
80
45
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
845
790
2810
2765
2720
2660
2540
1660
1630
1595
1525
4680
4605
4530
4430
4230
816.5-1996
zyxw
ASME
FITTINGS
AND FLANGED
TABLE 2-3.14
RATINGS FOR GROUP 3.14 MATERIALS
Nominal
Designation
47Ni-22Cr-19Fe-6
Forgings
Plates
Castings
MOB581 Gr. NO6007 (1)(2)
B 582 Gr. NO6007 (1)
~~~~~
NOTES:
(1) Use solution annealed material only.
(2) The chemical composition, mechanical properties, heat treating requirements, and grain size
requirements shall conform to the applicable ASTM specification. The manufacturing procedures, tolerances, tests, certification, and markings shall be in accordance with ASTM B 564.
WORKING PRESSURES BY CLASSES, psis
zyxwvu
z
"
Class
Temp., "F
150
300
400
600
-20 to 100
200
300
400
500
275
245
230
200
170
720
645
600
560
535
960
860
795
750
715
1440
1070
600
650
700
750
800
140
125
110
95
80
520
510
505
500
495
690
680
675
670
660
1035
1020
1015
1005
995
850
900
950
1O00
65
50
35
20
485
450
385
365
650
600
515
485
975
900
775
725
2160
1935
1290
1685
1125
1195
46
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
900
1555 2590
1535 2555
1520 2530
1505
1460
2435
1350
1160
1O90
1500
2500
3600
3230
2990 1795
2810
2675 1605
6000
5380
4980
4680
4460
2510
2485
4320
4260
4220
4180
4140
2245
1930
1820
1490
4060
3745
3220
3030
PIPE FLANGES AND FLANGED FllTlNGS
TABLE 2-3.15
Nominal
Designation
33Ni-42Fe-21Cr
zy
zyxwvutsrq
ASME 816.5-1996
I
RATINGS FOR GROUP 3.15 MATERIALS
Forgings
Castings
Plates
B 409 Gr. NO8810 (1)
B 564 Gr. NO8810 (1)
NOTE :
(1) Use solution annealed material only.
WORKIP
PRESSURE: %YCLASSES,
rig
Class
Temp., "F
150
300
400
600
900
1500
2500
-20 to 100
200
300
400
500
230
205
195
185
170
600
540
505
480
455
800
720
675
640
610
1200
1080
1015
960
910
1800
1620
1520
1440
1370
3000
2700
2530
2400
2280
5000
4500
4220
4000
3800
600
650
700
750
800
140
125
110
95
80
440
425
420
415
41O
585
565
560
550
545
880
850
840
825
815
1320
1275
1260
1240
1225
2195
2125
21O0
2065
2040
3660
3540
3500
3440
3400
850
900
950
1O00
1050
65
50
35
20
400
395
385
365
325
530
530
515
485
435
795
790
775
725
650
1195
1190
1160
1O90
975
1990
1980
1930
1820
1625
3320
3300
3220
3030
2710
1100
1150
1200
1250
1300
...
320
275
205
180
140
430
365
275
245
185
640
550
41O
365
275
965
825
620
545
410
1605
1370
1030
910
685
2675
2285
1715
1515
1145
1350
1400
1450
1500
...
...
...
105
75
60
40
140
1O0
80
55
205
150
115
85
310
225
175
125
515
380
290
205
860
630
485
345
zyxwvutsr
zyxwvutsrq
...
...
...
...
...
...
47
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
616.5-1996
zyxwvutsrq
ASME
FITTINGS
FLANGED
TABLE 2-3.16
AND
FLANGES
PIPE
RATINGS FOR GROUP3.16MATERIALS
Nominal
Designation
Forgings
35Ni-19Cr-1!L4Si
B 511 Gr. NO8330 (1)(2)
Plates
Castings
~
~~~
B 536 Gr. NO8330 (1)
~
~~~
NOTES:
(1) Use solution annealed material only.
(2) The chemical composition, mechanical properties, heat treating requirements, and grain size
requirements shall conform to the applicable ASTM specification. The manufacturing procedures, tolerances, tests, certification, and markings shall be in accordance with ASTM B 564.
zyxwvutsrq
WORKING PRESSURES BY CLASSES, I:,Sig
Class
Temp., F'
150
300
400
600
900
1500
2500
-20 to 100
200
300
400
500
275
245
225
200
170
720
635
590
550
525
960
850
785
735
700
1440
1270
1175
1105
1050
21 60
1910
1765
1655
1575
3600
3180
2940
2760
2630
6000
5300
4900
4600
4380
600
650
700
750
800
140
125
110
95
80
500
490
480
470
465
670
655
645
625
620
1005
980
965
940
925
1505
1470
1445
1410
1390
2510
2450
241O
2350
2315
4180
4080
4020
3920
3860
850
900
950
1O00
1050
65
50
35
20
455
445
385
365
310
605
590
515
485
410
905
885
775
725
615
1360
1330
1160
1090
925
2270
2215
1930
1820
1545
3780
3690
3220
3030
2570
1100
1150
1200
1250
1300
...
...
240
185
145
115
95
320
245
195
155
130
480
370
290
235
190
720
555
435
350
285
1205
925
725
585
480
2005
2545
1210
975
795
1350
1400
1450
1500
...
75
55
45
35
1O0
75
60
45
150
110
95
70
220
165
140
1O0
370
280
230
170
615
465
385
285
...
...
...
...
...
...
...
zyxwvut
48
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
zyx
zy
ASME 816.5-1996
TABLE 3 PERMISSIBLE IMPERFECTIONS IN FLANGE FACING FINISH FOR
RAISED FACE AND LARGE MALE AND FEMALE FLANGES
Maximum Radial Projection
of Imperfections Which Are
No Deeper Than the Bottom
of the Serrations, in.
Maximum Depth and
Radial Projection of
Imperfections Which Are
Deeper Than the
Bottom of the
Serrations, in.
'12
0.12
0.06
94
0.12
0.12
0.06
0.06
0.12
0.06
0.06
NPS
zyxwvutsrqponmlk
1
1'/4
zyxwvutsrqpo
zyxwvutsrqpo
1 5;
0.12
2
2v2
3
35;
4
0.12
0.25
0.25
0.12
5
0.25
0.25
0.31
0.31
0.31
0.12
0.12
0.18
0.18
0.18
0.31
0.38
0.50
0.50
0.50
0.18
0.18
6
8
10
12
14
16
18
20
24
0.06
0.06
0.12
0.18
0.06
0.12
0.25
0.25
0.25
49
COPYRIGHT American Society of Mechanical Engineers
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ASME 616.5-1996
zyxwvutsrq
FLANGED FITTINGS
90 deg. Elbow
Straight Size
90 deg. Elbow
Cross
Straight Size
Tee
Straight Size
"
90 deg. Elbow
Reducing Size
Front view
Side view
Side Outlet Elbow
Straight Size
Tee
Reducing Size
Cross
Reducing Size
Front view
Side view
Side Outlet Tee
Straight Size
zyx
45 deg. Lateral
Straight Size
zyxwvutsrq
'F
I
90 deg. Base Elbow
G
F
'N
Double Branch Elbow
Base
T
45 deg. Elbow
Reducer
True ''Y"
WYU
RS T
Eccentric Reducer
zyxwvutsrqp
FIG. 1 METHOD OF DESIGNATING LOCATION OF AUXILIARY CONNECTIONS WHEN SPECIFIED'
NOTE:
(1) The above sketches show views of the same fitting and represent fittings with syrnrnetrcial
shapes, with the exceptionof the
side outlet elbow and the side outlet tee (straightsizes). Sketches are illustrative only and do not imply required design (see
para. 6.12).
50
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
zyx
I=o €2
zyxwvutsrqp
PIPE FLANGES
FITTINGS
AND FLANGED
ASME B16.5-1996
FLANGED FITTINGS
Reducing Teer
B
B
A
Run
A
Reducing on
One Outlet
A
A
Reducing on
Outlet and
One Run
Reducing o n
Reducing on Both
RUIU (Bullhead)
Reducing Cr-
C
D
$=t
C
D$ =@
C
A
Reducing o n
One Outlet
C
T
$
D
C
A
Raducing o n
One Run
and
Outlet
A
Reducing on
Both Outlets
G
F
$
D
A
zyxw
Reducing o n Om Run
and Both Outlets
Reducing Laterals
PD
D
Q
zyxwvutsrq
A
Reducing o n
Brench
A
Reducing o n
One Run
A
A
zyxwvutsrqpo
,Bcc ,aBB@
Reducing on
One Run and Branch
True "Y"
Side Outlet Ten
B
A
Hand
Left
Hand
Right
BBranch
Side Outlet Elbow
Double
Elbow
zyxwvuts
A
C
A
Right Hand
A
Left Hand
FIG. 2 METHOD OF DESIGNATING OUTLETS OF REDUCING FITTINGS IN SPECIFICATIONS'"
zyxwvutsr
NOTES:
(1) The largest opening establishes the basic size of a reducing fitting. The largest opening is named first, except that for bull head
tees which are reducing on both runs and for double branch elbows where both branches are reducing,the outlet is the largest
opening and named last in both cases.
(2) In designating the openings of reducing fittings, they should be read in the order indicated by the sequence of the letters A,
B, C,and D. In designating the outlets of side outlet reducing fittings, the side outlet is named last, and in the case of the cross
which is not shown, the side outlet is designated by the letter E.
(3) Sketches are illustrative only and do not imply required design (see para. 3.2).
51
COPYRIGHT American Society of Mechanical Engineers
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FIG. 3
zyxwvutsrqponmlkjihgfedcbaZY
zyx
zyxwvutsrqpon
zyxwvutsrqponmlkjih
zyxwvu
THREAD LENGTH FOR CONNECTION TAPPING'
Connection size,
NPS
Thread length T, in.
[Note (211
I
3/a
1
l/2
I
3/4
I
1
I
1%
I
1 l/2
0.71
I
2
FIG. 4
SOCKET WELDING FOR CONNECTIONS'
Connection size, NPS
3111
112
3/4
0.68 0.760.55 0.72
0.53
0.41 of
Minimum
diameter
1
1%
1.33
IV2
1.06
2
0.86
2.41
0.69
1.92
1.68
0.25
0.25
socket A, in.
~
NOTES:
(1)See paras. 6.12.1, 6.12.3,
and 6.12.4.
(2)In no case shall the effective length of thread T be less than that shown
in Table above. These lengths are equal to the effective thread length of
external pipe threads (ASME 81.20.1).
Minimumdepth8,in.
NOTE:
(1)See paras. 6.12.2.1,
0.25
0.19 0.19
0.25
0.31
æ
la
r
6.12.3,
and 6.12.4.
t"
n
u-
9
n
l
N
FIG. 6
FIG. 5
BOSSESFOR CONNECTIONS'
BUTT WELDING FOR CONNECTIONS'
NOTE:
(1)See paras. 6.12.2.2,and 6.12.4.
Connection size, NPS
Minimum boss
diameter J, in.
NOTE:
(1) See para. 6.12.3.
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
31a
'12
1.25
1.50
3/4
1
1.75 2.12
1%
zyxw
1 l12
2.75
2
3.38
2.50
.
zyxwvut
zyxwvutsrq
zyxw
zyxw
STD-ASME BLb.5-ENGL
PIPE FLANGES AND FLANGED FllTlNGS
0 7 5 9 b 7 0 0 5 7 9 4 4 7 571
197b
ASME 616.5-1996
zy
END FLANGE FACINGS
Flange Thickness and Center-tomEnd Dimensions
Classes 150 and 300
AA, BB,
AA. BB, CC, etc.
CC, etc.
[Notes (11, (211
0.06 raised face
[Note (311 regularly
furnishedon Classes 150
and 300 unless otherwise
ordered
R
Small female face
(on end of pipe)
l
0.25 raised face
furnished only on
special order
Large or small
tongue face
Large or small
male face
Large or small'
female face
[Note (5)l
Ringjoint
face
Small Large
femele female
rzyxwvu
zyxwvu
-
K [Note (7)l
Small male face
zyxwv
FIG. 7 END FLANGE FACINGS AND THEIR RELATIONSHIP TO FLANGE THICKNESS AND CENTERTO-END AND END-TO-END DIMENSIONS'r3
(Figure continues on next page; Notes follow at end of Figure)
53
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
zyxwvuts
zyx
S T D * A S M E B L b - 5 - E N G L 177b
0757b70 0577450 253 W
PIPE FLANGES AND FLANGED FITTINGS
ASME 616.5-1996
zyxwv
zyxwvutsrqp
END FLANGE FACINGS
Flange Thickness and Center-to-End Dimensions
Classes 400 and Higher
AÄ, cc,. EE, etc.
zyxwvutsrqpon
A
A
, CC, EE, etc.
[Notes (11, (211
[Notes (11, (211
A, C , E, etc.
[Notes (1) - (211
0.06 raised face
[Note (311 furnished
only
on special order
Small female face
(on el:d o f pipe)
R
zyxw
zyxwvutsrqpon
0.254
0.25 raised face
furnished regularly
on
Classes 400 and higher
unless otherwise
ordered
Large or small
male face
[Note (3)l
Laroe or small
tongue face
R
[Note ( W
mpr-L
T
.-
R
Large Small
tongue tongue and
Small
I
I
Large or small
T
S
mak
ote (3)l
R
mate
1 f - n
I
love groove and
Note (4)
Ring joint
face
I
-T-
K [Note (7))
ti
- HH, KK, LL, etc.
Small male face
(on end o f pipe)
[Notes (11, (2)1
"_
I
Note (4)
FIG. 7 END FLANGE FACINGS AND THEIR RELATIONSHIP TO FLANGE THICKNESS AND CENTERTO-END AND END-TO-END DIMENSIONS'*3(CONT'D)
54
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
zyxwvutsr
zyxwvu
D 0 7 5 7 b 7 00 5 7 7 4 5 3
S T D - A S M E BLbvS-ENGL377b
PIPE FLA,NGES AND FLANGED FIRINGS
L2T D
ASME 816.5-1996
END FLANGE FACINGS
Flange Thickness and End-to-End Dimensions
Lapped Joints
Raised face
zyxwvutsrqp
q+4
FIG. 7 END FLANGE FACINGS AND THEIR RELATIONSHIP TO FLANGE THICKNESS AND CENTEREND-TO-END
(CONT'D)
AND
TO-END
zyxwvu
zyxwvuts
NOTES:
(1) See paras. 6.2 and 6.4.1.
(2) See Tables IO, 13, 16,
19, 22, 25, and 28.
(3)See Table 4 for dimensions of facings (other than ring joint) and Table 5 for ring joint facing.
(4)For small male and female joints, care should be taken in the use of these dimensions to insure that the inside diameter of
fitting or pipe is small enough to permit sufficient bearing surface to prevent the crushing of the gasket. (See Table 4.)This
applies particularly on lines where the joint is made on the end of the pipe. Threaded companion flanges for small male and
female joints are furnished with plain face and are threaded with American National Standard Locknut Thread (NPSL).
(5) Large male and female faces and large tongue and groove are not applicable to Class 150 because of potential dimensional
conflicts.
(6) See Table 4.
(7) See Table 5.
(8) See para. 6.4.2.
(9)See para. 6.4.2.5 and Table 5.
zyxwvutsrq
55
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
zy
zyx
zyxwvutsrqpo
zyxwvuts
D
TABLE 4 DIMENSIONS OF FACINGS14 (OTHER THAN RING JOINTS, ALL PRESSURE RATING CLASSES)
1
2
3
4
5
6
Outside Diameter
8
9
Outside Diameter
Raised
Face
Large
Male
and
Large
Tongue
R
Small
Male
(5)
S
Small
Tongue
T
1
1V4
1'12
1.38
1.69
2.00
2.50
2.88
0.72
0.94
1.19
1.50
1.75
1.38
1.69
1.88
2.25
2.50
2
2112
3
372
4
3.62
4.12
5.00
5.50
6.19
2.25
2.69
3.31
3.81
4.31
3.25
3.75
4.62
5.12
5.69
Nominal
Pipe
Size
7
Inside
Diameter
of
Large
Inside
and
Diametel
Small
of
Small
Tongue
U
Male
f
10
I
11
12
Height
Large
Female
and
Large
Groove
W
Small
Female
(5)
X
Small
Groove
Y
Inside
liametel
of
Large
and
Small
Groove
2
1.o0
1.31
1.50
1.88
2.12
1.44
1.75
2.06
2.56
2.94
0.78
1.o0
1.25
1.56
1.81
1.44
1.75
1.94
2.31
2.56
0.94
1.25
1.44
1.81
2.06
2.88
3.38
4.25
4.75
5.19
3.69
4.19
5.06
5.56
6.25
2.31
2.75
3.31
3.8 1
4.69
5.19
5.75
2.81
3.31
4.19
4.69
5.12
Large
and
Small
Male
and
Tongue
f
13
Minimum [(6), (7)]
Outside Diameter
of Raised Portion
2
(D
(D
QI
cn
Depth
of
Groove
or
Female
Small
Female
and
Groove
K
Large
Female
and
Groove
L
1.75
2.06
2.25
2.62
2.88
1.81
2.12
2.44
2.94
3.31
3.62
4.1 2
5.00
5.50
6.19
4.06
4.56
5.44
5.94
6.62
3
m
Nominal
Pipe
Size
zyxwvutsrqponmlkjihgfed
1
12
3
14
VI
01
U)
c
W
c
3.38
3.88
4.38
O
5
6
8
10
12
7.31
8.50
10.62
12.75
15.00
14
16
18
20
24
16.25
18.50
21.00
23.00
27.25
5.38
6.38
8.38
10.50
12.50
6.81
8.00
10.00
12.00
14.25
6.31
7.50
9.38
11.25
13.50
z
W
al
v)
Raised
Face
03
U
C
m
t
v)
7.38
8.56
10.69
12.81
15.06
5.44
6.44
8.44
10.56
12.56
6.88
8.06
10.06
12.06
14.31
6.25
7.44
9.3 1
11.19
13.44
z
QI
m
t
W
P
0-
m
I
m
æ
O
4
v)
BO
z
z
al
W
W
W
v)
v)
W
c
O
7.31
8.50
10.62
12.75
15.00
7.75
8.94
11.O6
13.19
15.44
L
n
d
r
-d
O
12
9
zyxwvutsrqpon
-O
13.75
15.75
17.75
19.75
23.75
15.50
17.62
20.1 2
22.00
26.25
14.75
16.75
19.25
21.o0
25.25
16.31
18.56
21.O6
23.06
27.31
13.81
15.81
17.81
19.81
23.81
15.56
17.69
20.19
22.06
26.31
14.69
16.69
19.19
20.94
25.19
16.25
18.50
21.o0
23.00
27.25
16.69
18.94
21.44
23.44
27.69
14
16
18
20
24
rn
2z
2
v)
P
W
Z
R
U
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
TABLE 4 (CONT'D)
zyxwvutsrqp
GENERAL NOTE: Dimensions are in inches.
zyxwv
zyxwvutsz
NOTES:
For facing requirements for flanges and flanged fittings, see paras. 6.3 and 6.4 and Fig. 7 .
For facing requirements for lapped joints, see para. 6.4.2 and Fig.7.
For facing tolerances, see para. 7.2.
See para. 6.4.2 and Fig. 7 for thickness and outside diameters of laps.
For small male and female joints, care should be taken in the use of these dimensions to insure that the inside diameter of
fitting or pipe is small enough to permit sufficient bearing surface to prevent the crushing of the gasket. Thisapplies particularly
on lines where the joint is made on the end of the pipe. Inside diameter of fitting should match inside diamter of pipe as
specified by purchaser. Threaded companion flanges for small male and female joints are furnished with plain face and are
threaded with American National Standard Locknut Thread (NPSL).
Raised portion of full face may be furnished unless otherwise specified on order.
Large male and female faces and large tongue and groove are not applicable to Class 150 because of potential dimensional
conflicts.
Height of raised face is either 0.06 in. or 0.25 in. See para. 6.4.1.
Height of large and small male and tongue is 0.25 in.
Depth of groove or female is 0.19 in.
P
r
m
I
m
æ
O
4
4
W
W
o)
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
z
zyxwvuts
zyxwv
STD.ASME B L b - 5 - E N G L L 7 7 b I0757b70 0577954 739
zyxwvut
zyxwvuts
PIPE FLANGES AND FLANGED FllTlNGS
ASME 816.5-1996
23 dea.
e (1 I l
pproximate distance
between flanges
TABLE 5 DIMENSIONS OF RING JOINT FACINGS24 ALL PRESSURE RATING CLASSES)
8
9
300
...
...
...
...
...
...
1
'12
3
14
10
I
11
I
12
zyxwvuts
Nominal Pipe Size
150
I
400
(5)
...
...
...
...
...
...
...
...
...
Groove Dimensions
600
2500
?;
...
. 1. .
. 3. .
12
14
...
...
...
Radius
at
Bottom
R
Groove
Number
Pitch
Diameter
P
Depth
W)
Width
F
R1 1
12
13
14
15
1.344
1.562
1.688
1.750
1.875
0.219
0.250
0.250
0.250
0.250
0.281
16
17
18
19
20
2.000
2.250
2.375
2.562
2.688
0.250
0.250
0.250
0.250
0.250
0.344
0.344
0.03
0.03
0.03
0.03
0.03
21
22
23
24
25
2.844
3.250
3.250
3.750
4.000
0.31 2
0.250
0.312
0.312
0.250
0.469
0.344
0.469
0.469
0.344
0.03
0.03
0.03
0.03
0.03
26
27
28
29
30
4.000
4.250
4.375
4.500
4.625
0.31 2
0.312
0.375
0.250
0.3 12
0.469
0.469
0.531
0.03
0.03
0.06
0.03
0.03
31
32
33
34
35
4.875
5.000
5.188
5.188
5.375
0.312
0.375
0.250
0.3 12
0.3 12
0.469
0.531
36
37
38
39
40
5.875
5.875
6.188
6.375
6.750
0.250
0.312
0.438
0.312
0.250
0.344
0.469
0.656
0.469
41
42
43
44
45
7.125
7.500
7.625
7.625
8.3 12
0.312
0.500
0.250
0.312
0.312
0.469
0.781
0.344
0.344
0.344
0.03
0.03
0.03
0.03
0.03
zyxwvutsrqponm
...
174
...
1v2
...
...
2
...
...
...
1
...
1 '/4
...
1 112
...
...
...
...
2
...
21/2
...
...
2112
...
...
3
...
...
...
372
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
1
74
...
...
1
1v4
...
...
...
1v 2
...
...
...
(7)
...
...
...
...
...
...
...
...
...
3 (7)
3
2
...
...
2v 2
...
...
...
3 (7)
...
...
...
...
4
5
...
...
4
...
...
...
...
...
...
...
...
...
5
5
5
5
...
...
...
...
6
...
...
1v4
...
1 5;
2
...
...
2
...
2v 2
...
*..
...
...
...
25i
...
...
0.344
0.344
0.344
0.344
zyxwvutsrq
(7)
...
...
...
...
...
4
...
...
...
4
...
...
...
0.344
...
...
35;
...
...
...
...
...
...
...
...
6
6
...
...
...
3l/2
...
...
4
...
...
...
...
...
...
6
6
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
...
...
...
...
3
...
...
3
...
...
...
...
...
...
4
...
...
4
...
...
...
...
...
...
5
...
5
...
...
...
0.469
0.344
0.469
0.469
0.344
0.344
0.469
0.469
0.03
0.06
0.03
0.03
0.03
0.03
0.03
0.06
0.03
0.03
0.03
0.06
0.03
0.03
0.03
zyx
zyxwvutsrqponm
STD.ASME B L b . 5 - E N G L
0759670 0579455 875
L996
m
ASME 816.5-1996
PIPE FLANGES AND FLANGED FlTrlNGS
23 deg.
11
zyxwvutsrqp
ate distance
flanges
zyxwvutsrqpo
r
TABLE 5 DIMENSIONS OF RING JOINT FACINGS" (ALL PRESSURE RATING CLASSES) (CONT'D)
13
14
16
19 18 1720
15
I
Diameter of Raised Portion K
150
300,
400,
600
...
2.00
...
2.50
...
...
2.50
...
...
...
2.75
...
2.88
...
3.25
...
...
4.00
...
...
...
3.12
...
3.56
...
...
...
4.25
1500
2500
150
...
...
...
2.38
...
...
...
2.56
...
...
...
0.16
0.16
...
2.88
...
0.16
...
...
...
...
...
...
...
...
5.00
...
...
5.75
...
6.06
...
...
6.75
...
*..
...
7.62
...
...
8.62
...
...
...
...
6.25
...
...
6.88
...
...
...
8.25
...
...
...
9.50
.
I
3.19
*..
...
...
...
...
...
.
...
...
...
...
5.25
2.81
3.62
...
...
...
...
...
...
4.75
...
2.62
.
.
I
...
3.25
...
...
4.00
...
4.50
...
...
...
...
...
...
...
...
...
...
6.62
...
...
0.16
8.50
...
...
...
9.50
...
...
*..
...
...
...
...
9.00
...
9.50
...
...
...
0.22
...
...
0.16
...
7.62
...
...
...
...
...
...
...
...
...
...
...
...
0.22
0.16
...
8.00
...
...
...
...
...
0.22
0.16
6.62
...
...
...
0.16
...
7.12
0.16
...
...
...
a . .
.,.
...
...
...
5.88
0.16
0.16
5.25
I
*..
...
...
.
...
...
...
0.16
...
...
...
...
...
...
...
5.38
6.1 2
0.12
...
...
4.88
...
...
...
400
...
...
...
...
...
...
...
...
600
0.12
..,
0.16
...
...
900
...
...
...
...
...
...
...
23
24
es
1500
2500
...
...
0.16
...
0.16
...
...
0.16
...
...
zyxwvutsrqp
...
.
22
ADDrOXimate Distance Between Fla
900
...
21
0.22
...
...
...
...
...
0.22
...
...
...
0.16
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
0.22
...
...
...
0.16
...
0.16
...
0.16
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
0.19
0.16
0.19
...
...
0.19
...
...
...
...
...
0.19
...
...
0.19
*..
...
...
*..
...
0.16
0.16
0.16
...
...
0.16
0.16
...
...
0.16
...
...
0.12
...
...
0.12
...
...
...
0.1 2
...
...
0.12
0.12
*..
...
0.12
...
...
...
...
...
...
...
...
...
0.12
...
...
0.12
...
...
...
...
0.16
...
...
...
...
...
...
...
...
0.19
0.16
...
...
...
0.16
0.12
...
...
0.12
...
...
zyxw
zyxwvuts
...
...
0.22
...
...
...
0.16
...
...
0.22
0.22
...
...
...
0.22
...
...
...
...
...
0.19
0.16
...
...
...
...
...
(Table 5 continues on next page; Notes and tolerances follow at end of Table)
59
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
zyxwvutsrqp
zyxwvu
PIPE FLANGES AND FLANGED FllTlNGS
ASME 616.5-1996
23 deg.
111
TABLE 5 DIMENSIONS OF RING JOINT FACINGS2"'IALL PRESSURE RATING CLASSES)
1
2
3
7
6
Nominal Pipe Size
400
(5)
600
900
(6)
...
...
...
...
...
...
...
...
8
8
8
...
...
...
...
10
...
...
...
...
...
10
...
...
8
10
...
...
12
14
14
...
...
...
...
16
16
...
...
...
18
18
...
...
...
...
...
...
...
...
...
20
...
...
...
24
...
...
...
...
...
...
12
...
6
...
...
...
...
...
...
...
12
...
...
...
6
8
...
...
2500
1500
...
...
...
...
f
zyxwvutsrq
5
4
...
...
...
...
14
...
...
...
16
...
...
...
...
...
...
...
10
...
...
...
10
...
...
12
...
...
12
...
...
...
...
...
...
...
...
14
...
...
...
...
...
...
16
...
...
...
...
18
...
...
...
18
...
20
...
...
20
...
...
...
...
...
...
...
24
...
...
*..
...
...
24
...
...
...
20
24
...
...
...
...
...
...
...
...
...
...
60
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
8
9
10
11
12
Groove Dimensions
Pitch
Groove Diametel
Number
P
Depth
E(1)
Width
F
Radius
at
Bottom
R
46
47
48
49
50
8.312
9.000
9.750
10.625
10.625
0.375
0.500
0.250
0.312
0.438
0.531
0.781
0.344
0.469
0.656
0.06
0.06
0.03
0.03
0.06
51
52
53
54
55
1 I .o00
12.000
12.750
12.750
13.500
0.562
0.250
0.312
0.438
0.688
0.906
0.344
0.469
0.656
1.188
0.06
0.03
0.03
0.06
0.09
56
57
58
59
60
15.000
15.000
15.000
15.625
16.000
0.250
0.312
0.562
0.250
0.688
0.344
0.469
0.906
0.344
1.312
0.03
0.03
0.06
0.03
0.09
61
62
63
64
65
16.500
16.500
16.500
17.875
18.500
0.312
0.438
0.625
0.250
0.312
0.469
0.656
1.062
0.469
0.03
0.06
0.09
0.03
0.03
66
67
68
69
70
18.500
18.500
20.375
21 .o00
21 .o00
0.656
0.438
0.688
1.188
0.250
0.344
0.3 12 0.469
0.500
0.781
0.06
0.09
0.03
0.03
0.06
71
72
73
74
75
21 .o00
22.000
23.000
23.000
23.000
0.688
0.250
0.375
0.500
0.688
1.188
0.344
0.531
0.781
1.312
0.09
0.03
0.06
0.06
0.09
76
77
78
79
26.500
27.250
27.250
27.250
0.250
0.438
0.625
0.812
0.344
0.03
0.06
0.09
0.09
0.344
0.656
1 .O62
1.438
zy
zyxwvutsrqponm
zyxwvutsrq
ASME 816.5-1996
PIPE FLANGES AND FLANGED FllTlNGS
23 deg.
zyxwvutsrqp
ate distance
flanges
zyxwvu
zyxwvuts
i
TABLE 5 DIMENSIONS OF RING JOINT FACINGSZ4 (ALL PRESSURE RATING CLASSES) (CONT'D)
13
I
14
I
15
I
Diametelr uf Raised
150
...
...
10.75
...
...
...
13.00
...
...
...
16.00
...
...
16.75
...
...
...
...
19.00
...
...
...
21.50
...
...
...
23.50
...
...
...
28.00
...
...
...
300,
400,
600
900
...
...
...
...
...
...
11-88
12.12
...
...
...
...
14.00
14.25
...
...
...
...
...
...
...
...
16.25
16.50
...
...
...
...
18.00
...
...
...
...
...
...
20.00
...
...
...
22.62
...
...
...
25.00
...
...
...
29.50
...
...
18.38
...
...
...
20.62
...
...
...
16
1500
9.75
...
...
...
12.50
...
...
...
14.62
...
...
...
17.25
...
...
...
...
19.25
...
...
...
21.50
...
...
23.38
...
...
24.12
...
...
25.50
...
...
...
30.38
...
I
17
lrtion K
...
...
...
26.50
...
...
...
31.25
F
2500
...
11.00
...
...
...
13.38
...
...
...
16.75
...
...
...
...
I
18
APl
...
...
...
...
...
...
0.22
...
...
...
0.16
...
0.22
...
...
...
...
...
0.16
...
0.22
...
...
...
...
0.12
...
...
...
...
...
...
...
...
0.16
...
...
...
...
...
...
...
...
...
...
...
...
...
...
300
150
19.50
...
...
...
19
0.22
...
...
...
0.12
...
0.22
...
...
...
...
...
0.12
...
...
...
0.22
...
...
...
I
20
I
21
I
22
lximate Distance Between Fla
400
...
...
...
0.22
...
...
...
0.22
600
...
...
...
0.19
...
...
...
0.19
...
...
...
...
0.22
0.19
...
...
...
0.22
...
...
...
0.22
...
...
...
...
...
0.19
...
...
...
0.19
900
...
...
...
...
...
0.19
...
0.16
...
...
...
...
0.16
...
...
...
0.16
...
...
0.19
...
...
0.16
...
...
...
0.19
...
...
...
...
0.22
...
...
...
...
...
0.22
2500
...
0.19
...
1500
0.12
0.16
0.22
...
...
24
...
0.16
0.16
...
I
0.16
...
...
...
23
0s
...
...
...
...
...
...
I
...
...
0.19
...
...
...
0.31
...
...
...
0.31
...
...
...
...
...
0.25
...
...
...
...
0.31
...
...
...
...
...
...
...
...
...
...
...
...
zy
zyxwv
0.12
...
.
a
0.22
...
...
.
...
0.12
...
...
0.25
...
...
...
...
...
...
...
...
0.25
...
...
...
...
...
...
0.22
...
...
0.19
...
...
...
...
0.38
...
...
0.22
...
...
...
...
0.44
...
...
...
...
...
...
...
(Notes and tolerances follow on next page)
61
COPYRIGHT American Society of Mechanical Engineers
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STD-ASME
ASME 816.5-1996
zyxwvuts
BLb.5-ENGL
1 9 7 b E I J 7 5 l b 7 0 0579458 584
zyxwvutsrqp
zyxwvutsrqpo
zyxwvutsrq
zyxwvutsr
zyxwvutsrqpo
zyxwvutsrqp
PIPE FLANGES AND FLANGED FllTlNGS
TABLE 5 (CONT'D)
GENERAL NOTE: Dimensions are in inches.
NOTES:
(1) Height of raised portion is equal to the depth of groove dimension E, but is not subjected to the tolerances for E. Former fullface contour may be used.
(2) For facing requirements for flanges and flanged fittings, see para. 6.4.1 and Fig. 7.
(3) For facing requirements for lapped joints, see para. 6.4.2 and Fig. 7.
(4) See para. 4.1.7 for marking requirements.
(5) Use Class 600 in sizes NPS '4 to NPS 372 for Class 400.
(6)UseClass1500 in sizesNPS
to NPS 2'4 for Class900.
(7) For ring joints with lapped flanges in Classes 300 and 600, ring and groove number R30 are used instead of R31.
TOLERANCES:
E
(depth) +0.016, -0
F
(width) 20.008
P
(pitch diameter) k0.005
R
(radius at bottom)
R < 0.06 +0.03, -0
R > 0.06 20.03
23deg.
(angle) k '/2 deg.
62
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zyxwvut
zyxwvu
zyxwvutsr
S T D - A S M E B L b - S - E N G L L77b
PIPE FLANGES AND FLANGED FllTlNGS
0 7 5 7 b 7 0 0 5 7 7 4 5 7 410
ASME B16.5-1996
WELDING ENDS
(Welding Neck Flanges, No Backing Rings)
zyxwvutsrqp
I 1
/ t
0.25 min.
37-112 deg.
f 2-112 defl. "i
I
'45deg.
1 max.
7 deg. max.
'a
I
0.06 i0.03
A
l
10 deg. f 1 deg,.
0.12 min. radius
"W
7 deg. max.
0.06
X
f
FIG. 8 BEVEL
FOR WALL
THICKNESSES t
FROM 0.19 TO
in.
0.88 in., INCLUSIVE"3
%
0.03
A
B
i
i
x
f
FIG. 9 BEVEL
FOR WALL
THICKNESSES t
GREATER THAN 0.88 in."3
A = nominal outside diameter of pipe, in.
B = nominal inside diameter of pipe, in.
t = nominal wall thickness of pipe, in.
zyxwvutsrqponm
zyxw
NOTES:
111 See oaras. 6.7, 6.8, and 7.4 for details and tolerances.
i2j See kigs. 10 and 11 for additional details of welding ends.
(3) When the thickness of the hub at the bevel is greater than that of the pipe to which the flange is joined and the additional
thickness isprovided on the outside diameter, a taper weld having a slope not exceeding 1 to 3 may be employed or, alternatively,
the greater outside diameter may be tapered, at the same maximum slope or less, from a point on the welding bevel equal to
the outside diameter of the mating pipe. Similarly, when the greater thickness is provided on the inside of the flange, it shall
be taper-bored from the welding end at a slope not exceeding 1 to 3.
When flanges covered by this Standard are intended for services with light wall, higher strength pipe, the thickness of the
hub at the bevel may be greater than that of the pipe to which the flange is joined. Under these conditions a single taper hub
may be provided, and the outside diameter of the hub at the base (dimension X) may also be modified.
The additional thickness may be provided on either inside or outside or partially on each side,but thetotal additional thickness
shall not exceed one-half times the nominal wall thickness of intended mating pipe. See Figs. 12, 13, and 14.
63
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ASME B16.5-1996
PIPE FLANGES AND FLANGED FllTlNGS
zy
WELDING ENDS
(Welding Neck Flanges With Backing Rings)
FIG. 10 INSIDE
CONTOUR FOR USE WITH
RECTANGULAR
BACKING
RING'-4
TAPER
BACKING
RING'4
FIG. 11 INSIDE
CONTOUR FOR USE WITH
A = nominal outside diameter of welding end, in.
B = nominal inside diameter of pipe, in.
= A-2t
C = A - 0.031 - 1.75t - 0.010 in.
t = nominal wall thickness of pipe, in.
0.031 = minus tolerance on outside diameter of pipe, in., to ASTM A 106, etc.
1.75t = 871/2% of nominal wall (permitted by ASTM A 106, etc.) multiplied by two to convert into terms of diameter
0.010 = plus tolerance on diameter C, in. See para. 7.5.3.
zyxwvutsr
NOTES:
(1) 0.5 in. depth based on use of 0.75 in. wide backing ring.
(2) See paras. 6.7, 6.8, and 7.5 for details and tolerances.
(3) See Figs. 8 and 9 for welding end details of welding neck flanges.
(4) For dimensions, see Table 6.
64
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PIPE FLANGES AND FLANGED FITTINGS
zyxwvutsrq
ASME 816.5-1996
WELDING ENDS
(Welding Neck Flanges)
ADDITIONAL THICKNESS FOR
WELDING TO HIGHER STRENGTH PIPE
zyxwvutsr
18 deg. max. (1 :3)
v
zyxwvut
FIG. 13 BEVEL FOR INSIDE
FIG. 12 BEVEL FOR OUTSIDE THICKNESS14
THICKNESS'^
18 deg. max. (1 :3)
14deg. min. (1:4!\
FIG. 14 BEVELFOR COMBINED THICKNESS’4
zyx
NOTES:
(1) When the materials joined have equal minimum specified yield strength, there shall be no restriction on the minimum slope.
(2) Neither tl, t2, nor their sum tl + t a shall exceed 0.5t.
(3) When the minimum specified yield strengths of the sections to be joined are unequal, the value of t D shall at least equaltimes
the ratio of minimum specified yield strength of the pipe to minimum specified yield strength of the flange.
(4) Welding shall be in accordance with the applicable code.
65
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zyxwvutsrqponm
zyxwv
ASME 816.5-1996
PIPE FLANGES
FITTINGS
AND FLANGED
2
1
~~
Nominal
Pipe Size
~~
4
3
~
~
5
6
zyxwvutsrqponmlkjihgfedcbaZYXWVUTSRQPONMLKJIHGFEDCBA
Wall Thickness
B (2)
(1) or Schedule
c t(2)"I
t t(2).l4)1
~~
2'4
40
80
160
2.88
2.469
2.323
2.125
1,771
2.479
2.351
2.178
1.868
0.203
0.276
0.375
0.552
3.50
3.068
2.900
2.624
2.300
3.081
2.934
2.692
2.409
0.216
0.300
0.438
0.600
xxs
40
80
160
3
xxs
zyxwvutsr
zyxwvutsrq
zyxwvuts
3'4
4
4.00
3.548
3.364
3.564
3.402
0.226
0.316
4.50
4.026
3.826
3.624
3.438
3.152
4.044
3.869
3.692
3.530
3.279
0.237
0.337
0.438
0.531
0.674
5.56
5.047
4.813
4.563
4.313
4.063
5.070
4.866
4.647
4.428
4.209
0.258
0.375
0.500
0.625
0.750
6.62
6.065
5.761
5.501
5.189
4.897
6.094
5.828
5.600
5.327
5.072
0.280
0.432
0.562
0.718
0.864
160
8.020
7.873
7.709
7.546
7.327
7.163
7.053
6.998
0.322
0.406
0.500
8.62
7.981
7.813
7.625
7.439
7.189
7.001
6.875
6.813
40
60
80
1O0
120
140
160
10.020
9.750
9.564
9.314
9.064
8.750
8.500
10.070
9.834
9.671
9.452
9.234
8.959
8.740
0.365
0.500
0.593
0.718
0.843
12.000
11.938
11.750
11.626
11.376
11.O64
10.750
10.500
10.126
12.053
11.999
11.834
11.725
11507
11.234
10.959
10.740
10.413
0.375
0.406
0.500
0.562
0.687
0.843
1.o00
1.125
1.312
40
80
40
80
120
160
xxs
5
40
80
120
160
xxs
6
40
80
120
160
xxs
8
40
60
80
100
120
140
xxs
10
10.75
STD
40
xs
12
60
80
100
120
140
160
12.75
66
COPYRIGHT American Society of Mechanical Engineers
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0.593
0.718
0.812
0.875
0.906
1.o00
1.125
zyxw
zyxwvutsrqpo
zyxwvutsrqp
FLANGED
PIPE FLANGES AND
ASME 816.5-1996
FlUlNGS
TABLE 6 DIMENSIONS OF WELDING ENDS (CONT'D)
(See Figs. 8 Through 14, Inclusive)
3
1
2
Nominal
Pipe Size
Wall Thickness
(1) or Schedule
16
STD
40
60
80
1O0
120
140
160
16.00
15.303
15.084
14.81 1
14.484
14.155
13.827
13.442
13.171
0.375
0.500
0.656
0.843
1.O31
1.218
1.438
1.593
18.00
17.250
17.000
16.876
16.500
16.126
15.688
16.250
14.876
14.438
17.303
17.084
16.975
16.646
16.319
15.936
15.553
15.225
14.842
0.375
0.500
0.562
0.750
0.937
1.156
1.375
1.562
1.781
20.00
19.250
19.000
18.814
18.376
17.938
17.438
17.000
16.500
16.064
19.303
19.084
18.921
18.538
18.155
17.717
17.334
16.896
16.515
0.375
0.500
0.593
0.812
1.O31
1.281
1.500
1.750
1.968
23.250
23.000
22.876
22.626
22.064
21.564
20.938
20.376
19.876
19.314
23.303
23.084
22.975
22.757
22.265
21.827
21.280
20.788
20.350
19.859
0.375
0.500
0.562
0.687
0.968
1.218
1.531
1.812
2.062
2.343
xs
20
STD
xs
24
30
40
60
80
1O0
120
140
160
t [(21,(4)1
15.250
15.000
14.688
14.314
13.938
13.564
13.124
12.814
STD
40
60
80
1O0
120
140
160
C [(2)-(411
14.00
xs
18
B (21
0.375
0.438
0.500
0.593
0.750
0.937
1.093
1.250
1.406
STD
40
60
80
1O0
120
140
160
6
13.250
13.124
13.000
12.814
12.500
12.126
1 1.814
11500
11.188
xs
60
80
1O0
120
140
160
5
13.303
13.192
13.064
12.921
12.646
12.319
12.046
11.771
1 1.498
STD
40
14
4
zyx
zyxw
zyxwvutsrqp
24.00
(Notes follow on next page)
67
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zyxwvut
zyxwvutsrqp
S T D - A S M E B L b - 5 - E N G L L 7 7 b E 0 7 5 7 b 7 0 0 5 7 7 q b 4 888
ASME 816.5-1996
PIPE FLANGES AND FLANGED FITTINGS
TABLE 6 (CONT'D)
GENERAL NOTE: Dimensions are in inches.
NOTES:
(1) Designations per Annexes B and C and ASME B36.10:
STD = standard wall thickness
XS = extra-strong wall thickness
XXS = double extra-strong wall thickness
(2) For tolerances, see para. 7.4.
(3) There is no fixed relation between ASME B16.5 pressure classes and pipe schedules.
(4) When the wall thickness is less than 0.562 in., it may be necessary to provide additional material by weld deposition in order
to be able to machine to the dimension C.
68
COPYRIGHT American Society of Mechanical Engineers
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PIPE FLANGES AND FLANGED FITTINGS
zyxwvutsr
zyx
ASME 616.5-1996
REDUCING THREADED ANDSLIP-ON PIPE FLANGES
zyxwvu
Note (3)-J
'
zyxwvutsrqp
zyxwvutsrq
zyxwvutsrq
zyxwvutsrqponmlkji
zyxwvuts
Blind Flange
TABLE 7 REDUCING THREADED AND SLIP-ON FLANGES FOR CLASSES 150 TO 2500
1
2
3
4
5
Nominal
Pipe
Size (4)
Smallest Size (1) of
Reducing Outlet Requiring Hub Flanges
Nominal
Pip Size (4)
Smallest Size (1) of
Reducing Outlet Requiring Hub Flanges
Nominal
Pipe
(4)
1
1 v4
1 v2
2
2v2
3
'/2
1 5;
1 Y2
1 72
2112
12
14
16
18
20
24
35;
4
5
6
8
;2
/
12
1
I k4
1 '/4
3
3 72
10
6
Smallest Size (1) of
Reducing Outlet Requiring Hub Flanges Size
3l/2
3l/2
4
4
4
4
NOTES:
(1)The hub dimensions shall be at leastas large as those of the standard flanges ofthe size to which the reduction is being made,
except flanges reducing to a size smaller than those of Columns 2, 4, and 6 may be made from blind flanges. See Example 2.
(2) Class 150 flanges do not have a counterbore. Class 300 and higher pressure flanges will have depth of counterbore q of 0.25
in. for NPS 2 and smaller tapping and 0.38in. for NPS 21/,and larger. Thediameter 0 of counterbore is the same as that given
in the tables of threaded flanges for the corresponding tapping.
(3)Minimum length of effective threads shall be at least equalto dimension T of the corresponding pressure classthreaded flange
as shown in tables but does not necessarily extend for the face of the flange. For thread of threaded flanges, see para. 6.9.
(4)For method of designating reducing threaded flanges, see para. 3.3 and Examples below.
EXAMPLES:
(1) The size designation is NPS 6 x 2V2 - Class 300 reducing threaded flange. This flange has the following dimensions:
NPS 2l/2 = taper pipe thread tapping (ASME 81.20.1)
12.5 in. = diameter of regular NPS 6 Class 300 threaded flange
1.44 in. = thickness of regular NPS 6 Class 300 threaded flange
7.0 in. = diameter of hub for regular NPS 5 Class 300 threaded flange
0.62 in. = height of hub for regular NPS 5 Class 300 thread flange
Other dimensions the same as for regular NPS 6 Class 300 threaded flange, Table 12.
(2)The size designation is NPS 6 X 2 Class 300 reducing threaded flange. Use regular NPS 6 Class 300 blind flange tapped
with NPS 2 taper pipe thread (ASME 61.20.1).
-
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zy
z
zyxwvuts
zyx
S T D - A S M E BLb-5-ENGL L 7 7 b
0 7 5 9 b 7005 7 7 q b b
b50
PIPE FLANGES AND FLANGED FllTlNGS
ASME 816.5-1996
h-
-d
Bolt Circle
Machine
Flange
Bolt With Nut
Stud Bolt With Nuts
Flanged Fitting
TABLE 8 TEMPLATES FOR DRILLING CLASS 150 FLANGES2
1
2
1
3
1
4
1
5
1
7
6
Outside
72
74
1
1V4
17
2
Flange O
of Bolt
Circle
Diameter
of Bolt
Holes
3.50
3.88
4.25
4.62
5.00
2.38
2.75
3.12
3.50
3.88
0.62
0.62
0.62
0.62
0.62
6.00
7.00
7.50
8.50
9.00
5
6
8
10
12
10.00
11.00
13.50
16.00
19.00
14
16
18
20
24
21.o0
23.50
25.00
27.50
32.00
1
9
r
zyxwv
j
T
Diameter
of Bolts
Number
of Bolts
z
z
'12
2
2
2
I
2
2%
3
372
4
8
Length of Bolts (5)
L
Drilling [(3),(4)]
Nominal
Pipe
Size
1
4.75
5.50
6.00
7.00
7.50
0.75
0.75
0.75
0.75
0.75
4
4
4
8
8
8.50
9.50
11.75
14.25
17.00
0.88
0.88
0.88
1.00
1.o0
8
8
8
12
12
18.75
21.25
22.75
25.00
29.50
1.12
1.12
1.25
1.25
1.38
12
16 1
16 1
20
20
Stud Bolts III
,.
0.00 in.
Raised
Face
2.25
2.50
2.50
2.75
2.75
Ring
Joint
...
...
3.00
3.25
3.25
Machine
Bolts
0.06 in.
Raised
Face
2.00
2.00
2.25
2.25
2.50
zyxwvutsrq
5
18
5
16
5
18
5
18
3.25
3.50
3.50
3.50
3.50
3.75
4.00
4.00
4.00
4.00
2.75
3.00
3.00
3.00
3.00
3.75
4.00
4.25
4.50
4.75
4.25
4.50
4.75
5.00
5.25
3.25
3.25
3.50
4.00
4.00
5.25
5.25
5.75
6.25
6.75
5.75
5.75
6.25
6.75
7.25
4.50
4.50
5.00
5.50
6.00
zyxwvuts
zyxwvutsrqpo
I
70
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
78
74
74
3
4
7
18
7
43
1
28
1V8
1'/4
zyxwvutsr
zyxwvutsrq
zyxwvutsrq
PIPE FLANGES AND FLANGED FllTlNGS
ASME 816.5-1996
TABLE 8 (CONT'D)
GENERAL NOTE: Dimensions are in inches.
NOTES:
(1) Length of stud bolt does not include the height of the points. See para. 6.10.2.
(2) For other dimensions, see Tables 9 and 10.
(3) For flange bolt holes, see para. 6.5.
(4) For spot facing, see para. 6.6.
(5) Bolt lengths not shown in Table are determined in accordance with Annex F. See para. 6.10.2.
71
COPYRIGHT American Society of Mechanical Engineers
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ASME 816.5-1996
zyxwvutsrqpo
PIPE FLANGES AND FLANGED FITTINGS
I t - - - - - - - O ~
+0-"-4
Threaded
SlipOn Welding
zyxwvutsrqp
zyxwvutsrqpo
Socket Welding (1/2 to 3 Only)
Blind
Welding Neck
zyxwvuts
I
zyxwvutsrqpon
zyxwvutsrqponm
zyxwvu
zyxwvutsrqpon
TABLE 9 DIMENSIONS OF CLASS 150
1
1
2
3
4
1
1
B
Hub
Diameter
7
B
Begin-
Outsida
Diameter
of
Flange
Thickam
of
Flange
Diameter
ning of
Chamfer
Welding
Nock
NO&
Y
1.88
2.08
2.19
2.25
2.44
0.62
0.62
0.69
0.81
0.88
0.88
2.50
1.00
1.12
2.75
1.19 1.19 2.75
1.25
1.25
2.81
1.31 1.31
3.00
1.44
5.56
1.56
6.63
8.63 9.69 1.75
10.75 12.00
12.75 14.38
14.00
2.25
16.00 18.00
18.00 19.88
2.88
SlipOn
Socket
Welding
lapped
Y
Y
0.62
0.62
0.68
0.81
0.44
0.50
0.56
0.62
0.69
1.19
0.84
1.50
1.o5
1.94 1.32
2.31
1.66
2.66 1
.W
0.62
0.62
0.68
0.81
0.88
3.06
3.56
4.25
4.81
5.31
1.00
1.12
8.50
9.00
0.75
0.88
0.94
0.94
0.94
0.94
1.00
1.12
1.19
1.25
6.44
7.56
10
12
10.00
11.00
13.50
16.00
19.00
14
16
18
20
24
21.00
23.50
25.00
27.50
32.00
1.38
1.44
1.56
1.69
1.88
15.75
'/I
Y,
1
1%
11/2
2 6.00
21/2
3 7.50
35i
4
5
6
8
3.50
3.88
4.25
4.62
5.00
7.00
1121
A
2.38
2.88
3.50
4.00
4.50
11
12
Bom
Length
rhnadad
Fianga
(13).
Min.
T
Thnadd
Min.
C
O
WU11)l.
10
Thn8d
of
Hub
X
Nominal
Pip.
Size
9
Length Through Hub
Welding
Lapped,
Min.
B
B
Welding
Neck
Socket
Welding
(14)
B
14
Depth
of
Socket
r
D
0.12
0.12
0.12
0.19
0.25
0.38
1.W
1.36
1.70
1.95
0.90
0.62
1.11 0.82
1.05
1.38
1.38
1.72
1.97
1.61
1.o0
1.12
1.19
1.25
1.31
2.44
2.94
3.57
4.07
4.60
2.07
2.46
2.97
2.47
3.07
3.60
4.10 3.55
4.60 4.03
0.31
0.31
0.38
0.36
0.44
0.69
0.75
0.81
1.44
3.50
1.56
3.50
1.75
4.00
1.94 1.94 4.00
2.19 2.19 4.50
1.44
1.56
1.75
1.94
2.19
5.66
6.72
0.72
10.88
12.88
5.05
0.44
6.07
0.50
7.98
0.50
10.02 10.920.50
12.92 12.00
0.50
.. .
5.00
3.12
3.44 2.60 5.00
3.81 2.69 5.50
4.06
5.69
4.38 3.25 6.00
2.25
2.50
2.69
2.88
3.25
14.14
16.16
18.18
20.20
24.25
0.50
0.50
0.50
0.50
0.50
.. .
...
...
0.88
72
COPYRIGHT American Society of Mechanical Engineers
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Slip-On
Socket
Welding,
Min.
13
Cornsr
Radius
of Bore
of
bPPd
Flange
and
Pipe
5.69
6.75
0.75
0.44
0.50
0.56
0.62
...
...
...
...
...
...
...
...
PIPE FLANGES AND FLANGED FllTlNGS
zyxwvutsrq
ASME 816.5-1996
TABLE 9 (CONT'D)
GENERAL NOTE: Dimensions are in inches.
NOTES:
(1) This dimension is for large end of hub, which may be straight or tapered. Taper shall not exceed 7 deg. on threaded, slipon, socket-welding, and lapped flanges.
(2) For tolerances, see Section 7.
(3) For facings, see para. 6.4.
(4) For flange bolt holes, see para. 6.5 and Table 8.
(5) For spot facing, see para. 6.6.
(6) For reducing threaded and slip-on flanges, see Table 7.
(7) Blind flanges may be made with or without hubs at the manufacturer's option.
(8) For reducing welding neck flanges, see para. 6.8.
(9) The minimum thickness of these loose
flanges, in sizes NPS 3v2 and smaller, is slightly greater than the thickness of flanges
on fittings, Table 10, which are reinforced by being cast integral with the body of the fitting.
(10) When these flanges
are required with flat
face, either the full thickness
or thickness with raised face removed may be furnished.
Users are reminded that removing the raised face will make the length through the hub nonstandard. See para. 6.4.1.1 for
additional restrictions.
(11) The flange dimensions illustrated are for regularly furnished 0.06 in. raised face (except lapped); for requirements of other
facings, see Fig. 7.
(12) For welding end bevel, see para. 6.7.
(13) For thread of threaded flanges, see para. 6.9.
(14) Dimensions in Column 12 correspond to the inside diameters of pipe as given in ASME 836.10M for Standard Wall pipe.
Thickness of Standard Wall is the same as Schedule 40 in sizes NPS 10 and smaller. Tolerances in para. 7.4.2 apply. These
bore sizes are furnished unless otherwise specified by the purchaser.
zyxwvutsrqp
zyxwvut
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COPYRIGHT American Society of Mechanical Engineers
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zyxwvutsrqpo
PIPE FLANGES
FITTINGS
AND FLANGED
ASME B1651996
Long Radius
Elbow
Elbow
zyxwvutsr
zyx
46 deg. Elbow
T
I
Tee
Cross
Eccentric
Rduar
Rduœr
TABLE 10 DIMENSIONS OF CLASS 150 FLANGED FITTINGS'-8
1
3
2
4
1
5
6
7
B
zyxw
True "Y"
10
9
11
12
0.08 in. Raised Face (Fiange Edge)(12)
Short
Center-
zyxwvut
zyxwvutsrqponmlk
Centorto-
Contact
surrace
Wall
Thickneu
of
Outside
Diameter
of
Flange
O
'/2
'/I
of
MW.
t
d
0.60
...
...
...
...
...
...
...
...
...
0.75
1.o0
1.25
1.50
3.50
3.76
4.00
5.00
6.00
1.75
2.00
2.25
5.75
6.25
7.00
1.75
1.75
2.00
4.50
4.50
4.50
3.75
4.00
4.25
6.50
7.00 5.00
7.75
8.50
9.00
2.50
3.00
3.00
3.50
4.00
8.00
9.50
10.00
11.50
12.00
2.50
2.50
3.00
3.00
3.00
5.00
5.50
6.00
6.50
7.00
4.75
5.25
5.75
6.25
6.75
10.25
4.50
11.50
5.00
14.00 9.00 5.50
16.50
6.50
19.00 12.00 7.50
13.50
14.50
17.50
20.50
24.50
3.50
3.50
4.50
5.00
6.50
8.00
9.00
11.00
12.00
14.00
7.75
8.25
9.25
11.25
12.25
cc
0.50
0.56
6.00
7.00
7.50
8.50
9.00
0.62
0.69
0.75
0.81
0.94
0.22
0.22
0.22
0.25
0.25
2.00
2.50
3.00
3.50
4.00
4.50
0.94
0.28
0.28
0.31
0.34
0.38
5.00
6.00
8.00
10.00
12.00
7.50
8.00
10
12
10.00
11.o0
13.50
16.00
19.00
14
16
18
20
24
21.00
23.50
25.00
27.50
32.00
3Yz
4
5
6
8
1 .o0
1.12
1.19
1.25
to-
contact
Surface
of
Raised
Min.
Face
45 dag.
Elbow
0.1 1
0.12
0.16
0.19
0.19
2
21/2
3
Contact
Surfaœ
of
contact
Surface
of
Raised
Few
Lateral
and
TrueY
' '
FF
Contact
surface-
Fitting.
RaiMd
0.38
0.41
0.44
to-
to-
Inride
Diametor
of
3.5
3.88
4.25
4.62
5.00
1
1Y,
1'/?
Long
Canter-
...
5.50
6.00
6.50
1 .o0
1
...
6.60
Raid
FICO
Lateral
EE
...
Face
Reducer
(13)
GG
...
...
zyxwvutsrqponm
1.38
0.41
1.44
1.56
1.69
1.88
0.44
0.47
0.50
0.57
13.25
15.25
17.25
19.25
23.25
14.00
15.00
16.50
18.00
22.00
21.50
24.00
26.50
29.00
34.W
7.50
8.00
8.50
9.50
11.00
27.00
30.00
32.00
35.00
40.50
6.00
6.50
7.00
8.00
9.00
16.00
18.00
19.00
20.00
24.00
14.25
15.25
16.75
18.25
22.25
(Figure continues on next page; Notes follow Table)
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
zyxwvutsrqponm
zyxwvu
zyxwvutsr
zyxw
ASME 816.5,-1996
PIPE FLANGES AND FLANGED FITTINGS
r
\ 4 Bolt holes
Round Base
Flanged Fitting
Square Base
”
Base Elbow
TABLE 10 DIMENSIONS CLASS
OF
13
14
15
16
17
Ring Joint (12)
CentertoEnd
Long
(14)
JJ
Long
CenterCentertotoEnd
End
45 deg. Radius
Lateral
Elbow Elbow
(14)
(14)
LL
KK
Short
CentertoEnd
Laerel
and
True
”
Y
’(14)
MM
F
150 FLANGED
(CONT’D)
19
18
21
20
zyxw
zyxwvu
zyxw
zyx
22
W
1
Baw Drilling 119)
Diameter
of
Round
Base
or Width
of
Square
Base
(15)
EndtoEnd
Reducer
NN
s
Thickneu
Thickness
of
Base
of
[(W(1811
T
Ribs (15)
U
~
...
...
...
...
...
...
...
...
5.25
5.75
6.25
2.00
2.25
2.50
6.00
6.50
7.25
2.00
2.00
2.25
...
...
...
...
6.75
7.25
8.00
8.75
9.25
2.75
3.25
3.25
3.75
4.25
8.25
9.75
10.25
11.75
12.25
2.75
2.75
3.25
3.25
3.25
10.50
11.75
14.25
16.75
19.25
4.75
5.25
5.75
6.75
7.75
13.75
14.75
17.75
20.75
24.75
21.75
24.25
26.75
29.25
34.25
7.75
8.25
8.75
9.75
11.25
27.25
30.25
32.25
35.25
40.75
...
...
...
...
...
...
...
Bolt
Circle
Diameter
...
...
...
...
...
...
...
...
4.12
4.50
4.88
5.25
5.50
4.62
4.62
5.00
5.00
6.00
0.50
0.50
0.56
0.56
0.62
0.50
0.50
0.56
0.56
0.62
3.50
3.50
3.75
3.75
4.75
5.25
5.75
6.25
7.00
8.38
9.75
11.25
7.00
7.00
9.00
9.00
11.00
0.69
0.69
0.94
0.94
1.o0
0.65
0.65
0.94
0.94
1.o0
5.50
6.25
6.75
7.25
8.25
9.25
12.50
13.75
15.00
16.00
18.50
11.00
11.00
13.50
13.50
13.50
1.o0
1.o0
1.o0
1.o0
1.12
1.12
1.12
9.50
9.50
11.75
11.75
11.75
...
...
...
1.12
1.12
1.12
...
...
3.88
4.75
9.50
...
...
’/2
3/r
...
1
...
1Y,
1v2
0.62
0.62
0.62 3.88
0.62
0.75
2
2’/*
3
0.75
0.75 5.50
0.75 7.50
0.75 7.50
0.68
5
6
8
10
12
0.88
zyx
0.88
0.86
0.88
0.88
372
4
14
16
18
20
24
(Notes follow on next page)
75
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
zyxwvutsrqp
zyx
ASME 816.5-1996
TABLE 10 (CONT'D)
GENERAL NOTE: Dimensions are in inches.
NOTES:
(1) For tolerances, see Section 7.
(2) For facings, see para. 6.4.
(3) For flange bolt holes, see para. 6.5 and Table 8.
(4) For spot facing, see para. 6.6.
(5) For intersecting center lines, center-to-contact surface, and center-to-end dimensions of side outlet fittings, see para. 6.2.4.
(6) For center-to-contact surface and center-to-end dimensions of special degree elbows, see para. 6.2.5.
(7)For reinforcement of certain fittings, see para. 6.1.
(8) For drains, see para. 6.12.
(9) The thickness of flange minimum dimensions for loose flanges, Table 9, sizes 31/2 in. and smaller, are slightly heavier than
for flanges on these fittings which are reinforced by being cast integral with the body of the fitting.
(10) When these fittings are required with flat face flange, either the full thickness or thickness with raised face removed may be
furnished. Users are reminded that removing the raised face will make the center-to-face dimension nonstandard. See para.
6.4.1.1 for additional restrictions.
(11) The thickness of flange dimension illustrated is for regularly furnished 0.06 in. raised face (except lapped); for thickness
requirements of other facings, see Fig. 7.
(12) For center-to-contact surface and center-to-end dimensions of reducing fittings, see para. 6.2.3.
(13) For contact surface-to-contact surface and end-to-end dimensions of reducers and eccentric reducers, see para. 6.2.3.
(14) These dimensions apply to straight sizes only. See paras. 6.2.3 and 6.4.1.3. For center-to-end dimensions of reducing fittings
or end-to-end dimensions of reducers, use center-to-contact surface or contact surface-to-contact surface dimensions of 0.06
in. raised face (flange edge) for largest opening and add the proper height to provide for ring joint groove applying to each
flange. See Table 5 for ring joint facing dimensions.
The base dimensions apply to all straight and reducing sizes.
The reducing fittings, the size and center-to-face dimension of base are determined by the size of the largest opening of
fittings. In the case of reducing base elbows, orders shall specify whether the base shall be opposite the larger or smaller
opening.
(17) Bases shall be plain faced unless otherwise specified, and the center-to-base dimension R shall be the finished dimension.
(18) Bases may be cast integral or attached as weldments at the option of the manufacturer.
(19) The bolt hole template is the same as for Class 150 flanges, Table 8, of corresponding outside diameter, except using only
four holes in all cases so placed as to straddle centerlines. The bases of these fittings are intended for support in compression
and are not to be used for anchors or supports in tension or shear.
zy
76
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
zyxwvutsrqponm
zyxwvuts
zyxwv
zyxwvutsr
ASME B16.5-1996
PIPE FLANGES AND FLANGED FITTINGS
CLASS 300 PIPE FLANGES, AND FLANGED FITTINGS
Machina Bolt With Nut
L Point height [Note (1 11
Flan@ Fitting
Stud Bolt With Nuts
TABLE 11 TEMPLATES FOR DRILLING CLASS 300 FLANGES2
2
1
3
5
4
7
6
Length of Bolts (5)
L
Drilling [(3),(4)1
Outside
Nominal
Pipe
Size
1
Machine
Bolts
Stud Bolts (1)
Diameter
of
Bolt
Circle
Diameter
Diameter
of
Bolt
Holes
Number
of
Bolts
Diameter
of
Bolts
0.06 in.
Raised
Face
0.06 in.
Raised
Faca
zyxwvutsrqponmlkji
h
3
of
Flange
O
9
8
14
'/4
172
3.75
4.62
4.88 1
5.25 1
6.12
2.62
6.50
7.50
8.25
9.00
10.00 4
5.00
3.50
3.88
4.50
0.62,
0.75 3.25
0.75
0.75
0.88
4
4
4
4
4
0.75
0.88 5.88
0.88 6.62
0.88 7.25
0.88
8
8
8
8
8
'12
5
B
/
5
/B
"/e
3
Ring
Joint
2.25
2.50
2.50
2.75
3.00
2.50
3.00
3.00
3.25
3.50
3.00
3.50
3.50
3.75
4.00
3.50
4.00
4.25
4.25
4.50
4.00
4.50
4.75
5.00
4.75
4.75
5.50
6.25
6.75
5.25
5.50
6.00
6.75
7.25
4.25
4.25
4.75
5.50
5.75
7.50
7.75
8.00 1
9.00
7.50 7.00
8.00
8.25
8.75
10.00
6.25
6.50
6.75
7.25
8.00
zyxwvutsrqponm
2
272
3
3v2
9.25
10.62
13.00
15.25
17.75
5 11.00
6
8
10
12
14
16
18
24
7.88
23.00
25.50
0.88
12.50
15.00
17.50
20.50
0.88
1 .o0
1.12
1.25
1.25
1.38
1.38
1.38
32.00 36.00 1.62
8
12
12
16
16
20.25 20
20
22.50
24
24.75 28.00
24 20
27.00 30.50
24
14
"/e
3
14
3
4
3
14
3
14
74
74
'/s
1
1 '/a
1/B'
124
1Y4
'/4
'/*
1
.
3.00
3.25
3.50
3.75
3.75
5.00
zyxw
(Notes follow on next page)
77
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
ASME B16.5-1996
TABLE 11 (CONT'D)
zy
zyxwvutsr
zyxwv
PIPE FLANGES AND FLANGED FITTINGS
GENERAL NOTE: Dimensions are in inches.
NOTES:
(1) Length of stud bolt does not include the height of the points. See para. 6.10.2.
(2) For other dimensions, see Tables 12 and 13.
(3) For flange bolt holes, see para. 6.5.
(4) For spot facing, see para. 6.6.
(5) Bolt lengths not shown in Table are determined in accordance with Annex F. See para. 6.10.2.
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
zyxwvutsr
zyxwvu
zyx
L77b W 0757b70 0577475 bb3
STD.ASME B l b . 5 - E N G L
ASME 816.5-1996
PIPE FLANGES AND FLANGED FllTlNGS
Slip-On
Threaded
Socket Welding ( V 2 to 3 Only)
zyx
1
Blind
:
-
Welding Neck
zyx
zyxwvutsrqponmlk
c
F
f
F
r
zyxw
zyxwvutsrqponm
TABLE 12 DIMENSIONS OF CLASS 300 FLANGES2*
1
Nominal
Pips
sue
1‘/q
17;
2
25;
3
3v;
4
5
6
8
10
12
14
16
18
20
24
2
Outside
)iameter
of
Flange
O
3
hicknsu,
of
Flange
wm.
Min.
C
3.75
4.62
4.88
5.25
6.12
0.56
0.62
0.69
0.75
0.81
6.50
7.50
9.00
10.00
0.88
1.o0
1.12
1.19
1.25
11.o0
12.50
15.00
17.50
20.50
1.38
1 .44
1.62
1 .a8
2.00
8.25
23.00
25.50
28.00
30.50
36.00
2.12
2.25
2.38
2.50
2.75
4
Liameter
of
Hub
X
Hub
IiamateI
Beginning of
ihsmfer
Melding
Neck
111)
A
-
Len] h Throuah Hub
'breaded
Slip-On
Socket
Nelding
Lapped
Y
Y
113)
B
r
0.12
0.12
0.12
0.19
0.25
Counter.
bon
Threaded
Flange,
Min.
D
0.93
D.Pth
of
Socket
D
0.38
0.44
0.50
0.56
0.62
0.90
1.11
1.38
1.72
1.97
1.31
1.50
1.69
1.75
1.88
2.75
3.00
3.12
3.19
3.38
1.12 2.44
2.94
1.25
3.57
1.25
1.44 4.07
1.44 4.57
2.46
2.97
3.60
4.10
4.60
2.07
2.47
3.07
3.55
4.03
0.31 2.50
0.31 3.00
0.38 3.63
4.13
0.38
4.63
0.44
0.69
0.75
0.81
2.00
2.06
2.44
3.75
4.00
3.88
3.88
4.38
4.62
5.12
5.66
1.69
6.72
1.81
2.00 8.72
10.88
2.19
2.38
12.88
5.69
6.75
8.75
10.92
12.92
5.05
6.07
7.98
10.02
12.00
0.44 5.69
0.50 6.75
8.75
0.50
0.50 10.88
0.50
12.94
...
...
14.19
16.19
18.19
20.19
24.19
.. .
...
3.31
3.94
4.62
5.25
5.75
2.38
2.88
3.50
4.00
4.50
1.31
1.50
1.69
1.75
1.88
7.00
8.12
10.25
12.62
14.75
5.56
6.63
8.63
10.75
12.75
2.00
2.06
2.44
2.62
2.88
-
Lapped
Flange
and
Pipe
0.88
1.09
1.36
1.70
1.95
0.88
1.00
1.O6
1.O6
1.19
-
of
Welding
Neck
Sockst
Welding
0.62
0.62
0.69
0.81
0.88
0.88
1.o0
1.06
1.O6
1.19
3.00
3.25
3.50
3.75
4.19
-
15
Comer
Radiur
of B o n
Bore
Thread
Slip-On
Length
‘hreaded Socket
(12).
Weldlng,
Min.
Min.
T
B
14
13
12
2.06
2.25
2.44
2.56
2.69
0.84
1.O5
1.32
1.66
1.90
14.00
16.00
18.00
20.00
24.00
Nelding
Neck
Y
11
0.62
0.82
1.05
1.38
1.61
1.50
1.88
2.12
2.50
2.75
16.75
19.00
21.00
23.12
27.62
10
9
5
4.38
4.75
5.12
5.50
6.00
5.62
5.75
6.25
6.38
6.62
14.14
2.50
16.16
2.69
2.75 18.18
2.88 20.20
24.25
3.25
14.18
16.19
18.20
20.25
24.25
To be
specified
by
purchaser
0.50
0.50
0.50
0.50
0.50
1.14
1.41
1.75
1.98
...
...
...
...
...
...
...
.
.
I
(Notes follow on next page)
79
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
~~
zyxwvu
zyxwvutsrqponmlkjihgfedcbaZYXWVUTSRQPONMLKJIHGFEDCBA
S T D * A S M E BLb-5-ENGL L77b
0 7 5 7 b 7005 7 7 4 7 b
ASME 816.5-1996
5TT
PIPE FLANGES AND FLANGED FITTINGS
TABLE 12 (CONT'D)
GENERAL NOTE: Dimensions are in inches.
NOTES:
(1) This dimension is for large end of hub, which may be straight or tapered. Taper shall not exceed 7 deg. on threaded, slipon, socket-welding, and lapped flanges.
(2) For tolerances, see Section 7.
(3) For facings, see para. 6.4.
(4) For flange bolt holes, see para. 6.5 and Table 11.
(5) For spot facing, see para. 6.6.
(6) For reducing threaded and slip-on flanges, see Table 7.
(7) Blind flanges may be made with or without hubs at the option of the manufacturer.
(8) For reducing welding neck flanges, see para. 6.8.
(9) When these flanges are
required with flat face, either the full thickness or thickness with raised face removed may be furnished.
Users are reminded that removing the raised face will make the length through the hub nonstandard. See para. 6.4.1.1 for
additional restrictions.
(10) The flange dimensions illustrated are for regularly furnished 0.06 in. raised face (except lapped); for requirements of other
facings, see Fig. 7.
(11) For welding end and bevel, see para. 6.7.
(12) For thread of threaded flanges, see para. 6.9.
(13) Dimensions in Column 12 correspond to the inside diameters of pipe as given in ASME 836.10M for Standard Wall Pipe.
Standard Wall dimensions are the same as Schedule 40 in sizes NPS 10 and smaller. Tolerances in para. 7.5.2 apply. These
bore sizes are furnished unless otherwise specified by the purchaser.
zyxwv
80
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
ASME 616.5-1996
PIPE FLANGES AND FLANGED FITTINGS
Table 13 begins on next page
81
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
zy
zyxwv
616.5-1996
ASME
AND FLANGED FllTlNGS
zyxwvut
zyxwv
zyxwvutsr
Long Radius
Elbow
Elbow
zy
45 deg. Elbow
I
Tee
Crua
Eccentric
Reducer
Reducer
True "Y"
TABLE 13 DIMENSIONS OF CLASS 300 FLANGED
1
2
5
7
6
8
9
10
11
0.06 in. Raired Face IFlanee Ed%
Outside
Diameter
Inside
Dlameter
of
Fining,
d
Conter-toContact
Surface
of Raised
Face
Elbow, Tea,
C m , and
True "Y"
AA
Center-toContact
Surface
of Raised
Face Long
Radiur
Elbow
BE
Conter-toContact
Surface
of Raised
Face
45 deg.
Elbow
12
Rinn
Joint (11)
cc
Long
Center-toContact
Surface
of R a l a d
FaCe
Lateral
EE
Short
Conter-toContact
Surfaw
of Raised
Faca
Lateral and
True "Y"
FF
contact
Surfaw-toContact
surface
of Raised
Face
Reducer
(12)
GO
Centerto-End
Elbow
Tee, C m ,
and
True 7.
(13)
HH
Nominal
Pipe
size
Flange
O
1
1
1?;
v,
4.88
5.25
6.12
0.69
0.75
0.81
0.19
0.19
0.19
1.o0
1.25
1.50
4.00
4.25
4.50
5.00
5.50
6.00
2.25
2.50
2.75
6.50
7.25
8.50
2.00
2.25
2.50
4.50
4.50
4.50
4.25
4.50
4.75
2
2'/2
3
3'/1
4
6.50
7.50
8.25
9.00
10.00
0.88
1 .o0
1.12
1.19
1.25
0.25
0.25
0.28
0.29
0.31
2.00
2.50
3.00
3.50
4.00
5.00
5.50
6.00
6.50
7.00
6.50
7.00
7.75
8.50
9.00
3.00
3.50
3.50
4.00
4.50
9.00
10.50
11.o0
12.50
13.50
2.50
2.50
3.00
3.00
3.00
5.00
5.50
6.00
6.50
7.00
5.31
5.81
6.31
6.81
7.31
5
6
B
10
12
11.00
12.50
15.00
17.50
20.50
1.38
1.44
1.62
1.88
2.00
0.38
0.38
0.44
0.50
0.56
5.00
6.00
8.00
10.00
12.00
8.00
8.50
10.00
11.50
13.00
10.25
11.50
14.00
16.50
19.00
5.00
5.50
6.00
7.00
8.00
15.00
17.50
20.50
24.00
27.50
3.50
4.00
5.00
5.50
6.00
8.00
9.00
11.00
12.00
14.00
8.31
8.81
10.31
11.81
13.31
14
16
18
20
24
23.00
25.50
28.00
30.50
36.00
2.12
2.25
2.38
2.50
2.75
0.62
0.69
0.75
13.25
15.25
17.00
19.00
23.00
15.00
16.50
18.00
19.50
22.50
21.50
24.00
26.50
29.00
34.00
8.50
9.50
10.00
10.50
12.00
31.00
34.50
37.50
40.50
47.50
8.50
7.50
8.00
8.50
10.00
16.00
18.00
19.00
20.00
24.00
15.31
16.81
18.31
19.88
22.94
of
zyxwvutsrqponml
0.81
0.94
82
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
PIPE FLANGES AND FLANGED FllTlNGS
zyxwvutsrq
ASME 816.5-1996
W
F I M Fitting
~
Round Base
\ 4 Bolt holes
Square B u e
Base Elbow
TABLE 13 DIMENSIONS CLASS OF 300 FLANGED FITTINGS"9 (CONT'D)
13
I
14
I
16
15
Ing Joint (
Centerto.
End
Long
Radius
Elbow
(13)
JJ
CentertoEnd
45 deg.
Elbow
(13)
5.25
5.75
6.25
2.50
2.75
3.00
6.75
7.50
8.75
6.81
7.31
8.06
8.81
9.31
3.31
3.81
3.81
4.31
4.88
10.56
11.81
14.31
16.81
19.31
21.81
24.31
26.81
29.38
34.44
Long
CentertoEnd
Lateral
(131
LL
I
17
1
Short
CentertoEnd
Lateral
and
True
"Y" (13)
MM
F
19
18
21
22
1
23
Base Dr¡
3iameter
Endto-
End
Reducer
of
Round
CenterBase
or Width
to.
>f Square
Base
( 1 4 H W 1 Base (14)
R
S
2.25
2.50
2.75
,..
...
...
...
...
9.31
10.81
11.31
12.81
13.81
2.81
2.81
3.31
3.31
3.31
4.50
4.75
5.25
5.62
6.00
5.31
5.81
6.31
7.31
8.31
15.31
17.81
20.81
24.31
27.81
3.81
4.31
5.31
5.81
6.31
8.81
9.81
10.31
10.88
12.44
31.31
34.81
37.81
40.88
47.94
6.81
7.81
8.31
KK
20
NN
Bolt
'hickness
hickness
of
of
Base
:14H17)1 Ribs (14)
U
T
Circle
or
Bolt
Spacing
: rDHoles
W
...
...
...
...
...
...
...
...
...
5.25
5.25
6.12
6.12
6.50
0.75
0.75
0.81
0.81
0.88
0.50
0.50
0.62
0.62
0.62
3.88
3.88
4.50
4.50
5.00
6.75
7.50
9.00
10.50
12.00
7.50
7.50
10.00
10.00
12.50
1 .o0
1 .o0
1.25
1.25
1.44
0.75
0.75
0.88
0.88
1 .o0
5.88
5.88
7.88
7.88
10.62
13.50
14.75
16.25
17.88
20.75
12.50
12.50
15.00
15.00
17.50
1.44
1.44
1.62
1.62
1.88
1 .o0
1.12
1.12
1.25
1.25
10.62
10.62
13.00
13.00
15.25
...
Nameter
10.44
1'5"
Size
zyx
zyx
zyxw
zy
...
.
I
1
'/*
0.75
l"2
2
25;
3
3%
4
0.88
5
0.88
0.88
0.88
0.88
6
'*
8.88
zyx
0.75
0.75
O .a8
0.88
0.88
0.88
1 .o0
1 .o0
1.12
a
10
12
14
16
18
20
24
(Notes follow on next page)
83
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
ASME B16.5-1996
PIPE FLANGES AND FLANGED FITTINGS
zy
TABLE 13 (CONT'D)
GENERAL NOTE: Dimensions are in inches.
NOTES:
(1) For tolerances, see Section 7.
(2) For facings, see para. 6.4.
(3) For flange bolt holes, see para. 6.5 and Table 11.
(4) For spot facing, see para. 6.6.
(5) For intersecting center lines, center-to-contact surface, and center-to-end dimensions of side outlet fittings, see para. 6.2.4.
(6) For center-to-contact surface and center-to-end dimensions of special degree elbows, see para. 6.2.5.
(7) For reinforcement of certain fittings, see para. 6.1.
(8) For drains, see para. 6.12.
(9) When these fittings are required with flat face flange, either the full thickness or thickness with raised face removed may be
furnished. Users are reminded that removing the raised face will make the center-to-face dimension nonstandard. See para.
6.4.1.1 for additional restrictions.
(10) The thickness of flange dimension illustrated is for regularly furnished 0.06 in. raised face (except lapped); for thickness
requirement of other facings, see Fig. 7.
(11) For center-to-contact surface and center-to-end dimensions of reducing fittings, see para. 6.2.3.
(12) For contact surface-to-contact surface and end-to-end dimensions of reducers and eccentric reducers, see para. 6.2.3.
(13) These dimensions apply to straight sizes only. See paras. 6.2.3 and 6.4.1.3. For center-to-end dimensions of reducing fittings
or end-to-end dimensions of reducers, use center-to-contact surface or contact surface-to-contact surface dimensions of 0.06
in. raised face (flange edge) for largest opening and add the proper height to provide for ring joint groove applying to each
flange. See Table 5 for ring joint facing dimensions.
(14) The base dimensions apply to all straight and reducing sizes.
(15) For reducing fittings, the size and center-to-facedimension of base aredetermined by the size of the largest opening of fittings.
In the case of reducing base elbows, orders shall specify whether the base shall be opposite the larger or smaller opening.
(16) Bases shall be plain faced unless otherwise specified, and the center-to-base dimension R shall be the finished dimension.
(17) Bases may be cast integral or attached as weldments at the option of the manufacturer.
(19) The bolt hole template for round base is the same as for Class 300 flanges, Table 11, of corresponding outside diameter,
except using only four holes in all cases so placed as to straddle center lines. The bases of these fittings are intended for
support in compression and are not to be used for anchors or supports in tension or shear.
zyxwv
zyxwvuts
84
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
zyxwvutsrqponm
PIPE FLANGES AND FLANGED FITTINGS
ASME 816.5-1996
CLASS 400 PIPE FLANGES, AND FLANGED FITTINGS
b-
Bolt circle
-d
Flange
zyxwvuts
L Point height [Note (1 )I
NutsBolt With
FlanQed
Stud Fitting
zyxwvutsr
zyxwvutsrqponm
zyxwvutsrqponml
TABLE 14 TEMPLATES FOR DRILLING CLASS 400 FLANGES‘
1
2
3
4
5
8
7
6
Drilling [(3), (4)]
Outside
Nominal
Pipe
Size
5;
74
1
of
Flange
O
Diameter
of
Bolt
Circle
Diameter
Diameter
Number
of
Bolts
of
Bolt
Holes
9
Length of Bolts [(l),(5))
1
0.25 in.
Raised
Face
Diameter
of
Bolts
Male and
Female;
also
Tongue and
Groove
Ring
Joint
1 ’/4
1 ‘/2
Use Class 600 dimensions in these sizes.
2
2’4
3
3?4
10.00
1 1 .o0
12.50
15.00
17.50
20.50
7.88
9.25
10.62
13.00
15.25
17.75
14
16
18
20
24
23.00
25.50
28.00
30.50
36.001.88
20.25
22.50
24.75
27.00
32.00
~
1 .o0
1 .o0
1 .o0
1.12
1.25
1.38
i
1
zyxwvutsrqp
zyxwvutsr
1
I
I
4
5
6
8
10
12
8
8
12
12
16
16
’18
7
18
7
18
1
1
1 114
v*
5.50
5.75
6.00
6.75
7.50
8.00
5.25
5.50
5.75
6.00
6.75
7.50
8.00
5.75
7.25
7.75
8.00
8.50
8.75
9.25
10.25
8.25
8.75
9.00
9.75
1 1 .o0
5.25
6.50
zy
(Notes follow on next page)
85
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
ASME 816.5-1996
TABLE 14 (CONT'D)
GENERAL NOTE: Dimensions are in inches.
NOTES:
zy
zyxwvutsrq
zyxwv
PIPE FLANGES AND FLANGED FllTlNGS
(1) Length of stud bolt does not include the height of the points. See para. 6.10.2.
(2) For other dimensions, see Tables 15 and 16.
(3) For flange bolt holes, see para. 6.5.
(4) For spot facing, see para. 6.6.
(5) Bolt lengths not shown in Table are determined in accordance with Annex F. See para. 6.10.2.
86
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
*
PIPE FLANGES AND
ASME
FLANGED FllTlNGS
816.5-1996
&X
[Note (1 11
+
P B - - +
L
Threaded
-
Blind
O
SlipOn Welding
0
A
z
4
Welding Neck
TABLE 15 DIMENSIONS OF CLASS 400
'
1
3
2
Corner
Radius
of
Bore of
Lapped
Flange
Flange,and
Pipe
Length ThroughHub
zyxw
zyxwvutsrqponm
Outside
Diameter
Nominal
of
Sire
Flange
O
Thickness
of
Flange
PipeMin.
C
Diameter
of
Hub
Chamfer
X
r
Counterbore
Threaded
Min.
o
y4
1
1 Y4
1 '/?
zyxwvutsrqponmlkjih
zyxwv
zyxwv
zyxwvu
zyxwvutsrqponmlk
Use Class 600 dimensions in these sizes (11).
2
2'/z
3
35;
30.50
18
20
24
10.00
11.00
12.50
15.00
17.50
20.50
1.38
1.50
1.62
1.88
2.12
2.25
23.00
25.50
28.00
2.38
2.50
2.62
2.75
3.00
36.00
4.50
5.75
2.00
7.00
5.56
2.12
6.63
2.25
8.12
10.25
8.63
2.69
12.62
10.75
2.88
14.75 12.75
3.12
16.75
19.00
21.00
27.62
14.00
16.00
18.00
3.31
3.69
3.88
4.0b
4.50
3.50
4.00
4.06
4.62
4.88
5.38
2.00
2.12
2.25
2.69
4.00
4.25
5.38
20.00
5.75
24.00
2.00
8.72
12.88
14.14
16.16
18.18
23.12
4.60
5.69
6.75
8.75
10.92
12.92
14.18
16.19
18.20
20.25
1
2
%
I
L.
if
a
2
2
(Notes follow on next page)
87
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
ASME 816.5-1996
zyxwvutsrqp
zyxwvutsrq
zyxwvut
zyxwvutsrq
zyxwvutsrq
TABLE 15 (CONT'D)
GENERAL NOTE: Dimensions are in inches.
NOTES:
(1) This dimension is for large end of hub, which may be straight or tapered. Taper shall not exceed 7 deg. on threaded, slipon, and lapped flanges.
(2) For tolerances, see Section 7.
(3) For facings, see para. 6.4.
(4) For flange bolt holes, see para. 6.5 and Table 14.
(5) For spot facing, see para. 6.6.
(6) For reducing threaded and slip-on flanges, see Table 7.
(7) Blind flanges may be made with or without hubs at the manufacturer's option.
(8) For reducing welding neck flanges, see para. 6.8.
(9) For welding end bevel, see para. 6.7.
(10) For threads in threaded flanges, see para. 6.9.
(1 1) Socket welding flanges may be provided in NPS 5; through 2v2 using Class 600 dimensions.
88
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
zyxwvut
zyxwvu
zy
STD-ASME BLb-5-ENGL L99b
0 7 5 7 b 7 0 0 5 7 7 4 8 5 502
ASME 816.5-1996
PIPE FLANGES AND FLANGED FITTINGS
Table 16 begins on next page
89
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
zyxwvu
zyxw
= 0759b70
S T D - A S M E B L b m S - E N G L L77b
0579qBb 449
ASME 816.5-1996
PIPE FLANGES AND FLANGED FITTINGS
&$
zyxwvuts
KU
46 deg. Elbow
Elbow
AA
HH
?-
I
1
Cron
'
46 dog. Lateral
zyxwvuts
r
zyxwvutsrqponm
TABLE 16 DIMENSIONS OF CLASS 400 FLANGED FITTINGS'"
1
2
1
3
4
5
7
6
8
9
10
11
12
13
14
0.25 in. Raised Faw (9)
Flange Edge
Centar-
Nominal
Pipe
size
Outride
Thickness
Diameter
of
Flange
O
of
Flange
Min.
C
Wall
Thickness
of
Fitting,
Min.
tm
of
CentertoFlange
Edge
Elbow,
Tea,
Cross,
and
True
Fitting
d
7'
A
Inside
Diameter
1
174
1'/z
Cant"
CentartoFlange
Edge
45 deg.
Elbow
C
Lona
CentertoFlange
Edge
Lateral
E
Sholt
CentertoFlange
Edge
Lateral
end
True
Centerto-
Contact
surface
Contact
of
7"
Raised
Face
45 deg.
Elbow
F
cc
Use Class 600 dimensions in these S i m s .
2
2'/2
3
372
4
5
6
8
10
12
14
16
18
20
24
15.00
0.38
0.44
0.44
0.56
0.69
0.75
4.00
5.00
6.00
8.00
10.00
12.00
7.75
8.75
9.50
11.50
13.00
14.75
8.00
22.00
25.50
29.50
11.50
14.75
9.00
9.75
11.75
13.25
15.00
22.25
25.75
4.50
5.00
5.25
5.75
6.25
6.50
zyxwvutsrqponmlkj
28.00
0.81
0.88
0.94
1.O6
1.19
13.12
15.00
17.00
18.88
22.62
16.00
17.50
19.00
20.50
24.00
18.00
90
COPYRIGHT American Society of Mechanical Engineers
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16.25
17.75
19.25
20.75
24.25
32.75
7.00
8.00
8.50
9.00
10.50
zyxwvutsrq
ASME 816.5-1996
PIPE FLANGES AND FLANGED FlnlNGS
zyx
1
zyxwvu
F
zyxwvutsrqponm
r
TABLE 16 DIMENSIONS CLASS OF 400 FLANGED
(CONT'D)
15
0.25 in.
R a i d Face (9)
Contact
Surface-
toContact
Surface
of
Ralred
Face
Reducer
(10)
GG
f
Ring Joint (4
CentertoEnd
Elbow,
Tee.
Crorr,
and
True
"Y"
(11)
HH
Short
Canter.
toEnd
Lateral
and
True
"Y" 111)
Center-
EndtoEnd
Reducer
NN
mm
21
22
23
24
Bare
t112)(1411
Diameter
of
Round
Base or
Width of
Square
Base
(12)
R
S
Centerto-
Thickness
of
Base
25
26
1
I
I
I
Thickness
Base Drilling 116)
Bolt
Circle
or
Bolt
Spacing
W
Diameter
of
Drilled
Holes
Nominal
Pipe
Sire
zyx
zyx
zyx
zyx
'/2
%
1
1v4
1'/z
Use Class 600 dimensions in these sizes
2
2 '/?
3
3'/2
8.25
9.25
10.00
12.00
13.50
15.25
8.06
9.06
9.81
11.81
13.31
15.06
5.56
6.06
6.31
6.81
7.81
8.81
16.06
16.81
18.81
22.31
25.81
29.81
16.50
18.50
19.50
21.00
24.50
16.31
17.81
19.31
20.88
24.44
9.31
10.31
10.81
113 8
12.94
32.81
36.31
50.44
~
4.56
5.06
5.31
5.81
6.31
6.56
7.06
8.06
8.56 39.31 2
9.12 42.88
10.69
I
6.50
7.50
7.50
10.00
13.50
14.75
16.25
17.88
20.75
0.88
1.o0
0.62
0.75 1 .o0
0.75
5.00
0.75
5.88
0.88
0.88
1.A4
0.86
1.o0
5.88
7.88
7.88
10.62
1.A4
1.M
1.62
1.62
I .aa
1.00
1.12
1.12
1.25
1.25
10.62
10.62
13.00
13.00
15.25
4
5
6
8
10
12
zyxwvutsrqp
5
I
6.00
6.75
7.50
9.00
10.50
12.00
10.00
1.25
1.25
12.50
12.50
12.50
15.00
15.00
17.50
0.88
0.88
0.88
0.88
0.88
0.88
1 .o0
1.o0
1.12
14
16
18
20
24
(Notes follow on next page)
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COPYRIGHT American Society of Mechanical Engineers
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S T D - A S M E BLh.5-ENGL
zyxwvut
zyxwvu
199b
=
PIPE FLANGES AND FLANGED FllTlNGS
ASME 616.5-1996
TABLE 16 (CONT'D)
0 7 5 7 b 7 0 0577488 211
zyxwvutsrq
GENERAL NOTE: Dimensions are in inches.
NOTES:
(1) For tolerances, see Section 7.
(2) For facings, see para. 6.4.
(3) For flange bolt holes, see para. 6.5 and Table 14.
(4) For spot facing, see para. 6.6.
(5) For intersecting center lines, center-to-contact surface, and center-to-end dimensions of side outlet fittings, see para. 6.2.4.
(6) For center-to-contact surface and center-to-end dimensions of special degree elbows, see para. 6.2.5.
(7) For reinforcement of certain fittings, see para. 6.1,
(8) For drains, see para. 6.12.
(9)For center-to-contact surface and center-to-end dimensions of reducing fittings, see para. 6.2.3.
(10) For contact surface-to-contact surface and end-to-end dimensions of reducers and eccentric reducers, see para. 6.2.3.
(11) These dimensions apply to straight sizes only. (See paras. 6.2.3 and 6.4.1.3.) For the center-to-end dimensions of reducing
fittings or end-to-end dimensions of reducers, use center-to-flange edge or flange edge-to-flange edge dimensions for largest
opening, and add the proper height to provide for ring joint groove applying to each flange. See Table5 for ring joint facing
dimensions.
(12) The base dimensions apply to all straight and reducing sizes.
(13) For reducing fittings, the size and center-to-face dimensions of base are determined by the size of the largest opening of
fitting. In the case of reducing base elbows, orders shall specify whether the base shall be opposite the larger or smaller
opening.
(14) Bases shall be plain faced unless otherwise specified, andthe center-to-baseface dimension R shall be the finished dimension.
(15) Bases may be cast integral or attached as weldrnents at the option of the manufacturer.
(16) The bolt hole template for round base is the same as for Class 300 flanges, Table 11, of corresponding outside diameter,
except using only four holes in all cases so placed as to straddle center lines. The bases of these fittings are intended for
support in compression and are not to be used for anchors or supports in tension or shear.
zyxw
92
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PIPE FLANGES AND FLANGED FllTlNGS
zyxwvutsrq
zyx
zy
ASME 816.5-1996
CLASS 600 PIPE FLANGES, AND FLANGED FITTINGS
h
-
Bolt circle
L
I
Flange
Point height [Note (1 11
Flanged Fitting
Stud Bolt With Nuts
zyxwvutsrqpon
f
TABLE 17 TEMPLATES FOR DRILLING CLASS 600 FLANGES*
2
1
3
1
4
1
6
~“5
Nominal
Pipe
Size
72
Diameter
of
Bolt
Circle
Diameter
of
Bolt
Holes
Number
of
Bolts
9
Length of Bolts [(I), (5)]
L
Drilling [(3),( 4 1
Outside
Diameter
of
Flange
O
8
7
Diameter
of
Bolts
0.25 in.
Raised
Face
Male and
Female;
also
Tongue and
Groove
Ring
Joint
172
3.75
4.62
4.88
5.25
6.12
2.62
3.25
3.50
3.88
4.50
0.62
0.75
0.75
0.75
0.88
4
4
4
4
4
3.00
3.50
3.50
3.75
4.25
2.75
3.25
3.25
3.50
4.00
3.00
3.50
3.50
3.75
4.25
2
2‘/2
3
3
4
6.50
7.50
8.25
9.00
10.75
5.00
5.88
6.62
7.25
8.50
0.75
0.88
0.88
1 .o0
1 .o0
8
8
8
8
8
4.25
4.75
5.00
5.50
5.75
4.00
4.50
4.75
5.25
5.50
4.25
4.75
5.00
5.50
5.75
13.00
14.00
16.50
20.00
22.00
10.50
11.50
13.75
17.00
19.25
1.12
1.12
1.25
1.38
1.38
8
12
12
16
20
6.50
6.75
7.50
8.50
8.75
6.25
6.50
7.25
8.25
8.50
6.50
6.75
7.75
8.50
8.75
23.75
27.00
29.25
32.00
37.00
20.75
23.75
25.75
28.50
33.00
1.50
1.62
1.75
1.75
2.00
20
20
20
24
24
9.25
10.00
10.75
11.25
13.00
9.00
9.75
10.50
1 1 .o0
12.75
9.25
10.00
10.75
11.50
13.25
3
14
1
174
zyxwvutsrqp
zyxwvu
v*
5
6
8
10
12
14
16
18
20
24
(Notes follow on next page)
93
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
zyxwvuts
zyx
STDaASME B L b - 5 - E N G L L79b
0757b70 0577g70 7 7 T
m
PIPE FLANGES AND FLANGED FllTlNGS
ASME 816.5-1996
zyxwvutsrqpo
TABLE 17 (CONT'D)
GENERAL NOTE: Dimensions are in inches.
NOTES:
(1) Length of stud bolt does not include the height of the points. See para. 6.10.2.
(2) For other dimensions, see Tables 18 and 19.
(3) For flange bolt holes, see para. 6.5.
(4) For spot facing, see para. 6.6.
(5) Bolt lengths not shown in Table are determined in accordance with Annex F. See para. 6.10.2.
94
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
zyxwvutsrqpo
ASME 616.5-1996
PIPE FLANGES AND FLANGED FITTINGS
"---4
"
I
Threaded
SlipOn Welding
Socket Welding (1/2 to 3 Only)
I
Z
X
A
d
Blind
Welding Neck
1
2
3
TABLE 18 DIMENSIONS OF CLASS 600 FLANGESz4
-f
F
-f
4
5
7
6
8
9
10
Lent8thI Through Hub
12
13
Corner
Radius
of Bore
of
Lapped
Flange
and
Pipe
14
f
Y2
1
l'/z
3.75
4.62
4.88
5.25
6.12
2
2'/2
3
35i
4
6.50
7.50
8.25
9.00
10.75
5
10
12
13.00
14.00
16.50
20.00
22.00
14
16
18
20
24
23.75
27.00
29.25
32.00
37.00
llameter
of
Hub
X
Thread
Length
'hrsaded
Flange
breaded
Slip-On
Socket
Nelding
Y
Lapped
Y
0.88
1 .o0
0.88
1 .o0
-
Nelding
Neck
(101,
1 .O6
1.12
1.25
2.06
2.25
2.44
2.62
2.75
0.62
0.62
0.69
0.81
0.56
0.62
0.69
0.81
0.88
1.50
1.88
2.12
2.50
2.75
0.84
1 .O5
1.32
1.90
1 .O6
1.12
1.25
1 .o0
1.12
1.25
1.38
1.50
3.31
3.94
4.62
5.25
6.00
2.38
2.88
3.50
4.00
4.50
1 .44
1.62
1.81
1.94
2.12
1 .44
1.62
1.81
1 .94
2.12
1.75
1.88
2.19
2.50
2.62
7.44
8.75
10.75
13.50
15.75
5.56
6.63
8.63
10.75
12.75
2.38
2.62
3.00
3.38
3.62
2.75
3.00
3.25
3.50
4.00
17.00
19.50
21.50
24.00
28.25
14.00
16.00
18.00
20.00
24.00
3.69
4.19
4.62
5.00
5.50
1.66
Min.
Y
T
-
Slip-On
Socket
Velding.
Min.
B
0.88
1 .o9
Lappad,
Min.
B
0.88
1.36
1.70
1.95
0.90
1.11
1.38
1.72
1.97
2.88
3.12
3.25
3.38
4.00
1.12
1.25
1.38
1.56
1.62
2.44
2.94
3.57
4.07
4.57
2.46
2.97
3.60
4.10
4.60
2.38
2.62
3.00
4.38
4.62
4.50
4.62
5.25
6.00
6.12
1 .88
2.00
2.25
2.56
2.75
5.66
6.72
8.72
10.88
12.88
5.69
6.75
8.75
10.92
12.92
5.00
5.50
6.00
6.50
7.25
6.50
7.00
7.25
7.50
8.00
2.88
3.06
3.12
3.25
3.62
14.14
16.16
18.18
20.20
24.25
14.18
16.19
18.20
20.25
24.25
Nelding
Neck
Socket
Nelding
B
-
r
:ounterbore
'hreaded
Flange,
Min.
Q
8
Dapth
of
Socket
D
0.12
0.12
0.12
0.19
0.25
0.93
1.14
1.41
1.75
1.99
0.38
0.44
0.31
0.31
0.38
0.38
0.44
2.50
3.00
3.63
4.13
4.63
0.69
0.75
0.81
0.44
0.50
0.50
0.50
0.50
5.69
6.75
8.75
10.88
12.94
...
0.50
0.50
0.50
0.50
14.19
16.19
18.19
20.19
24.19
...
0.50
0.56
0.62
zyxwvutsrqponml
zyxwvutsrqponm
zyxw
L
u)
zyxwvut
c
L?
a
r
P
V
6
15
zyxwv
zyxwvutsrqponml
zyxwvutsrqpon
Outside
.hicknesr
of
Diameter
of
Flange,
Nominal
Min.
Flange Pipe
C
Size
O
74
Hub
Nameter
Beginning of
Ehemfer
Welding
Neck (9)
A
Il
Bore
--
-
e
B
n
E
0.50
...
...
...
...
...
...
...
...
.
I
.
.
.
I
7
(Notes follow on next page)
95
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
zyxwvutsrqpo
zyxwvutsrq
zyxw
zyxwvutsrqp
S T D - A S M E BLb-5-ENGL L77b
ASME 816.5-1996
0757b70 0577472 742 M
PIPE FLANGES AND FLANGED FllTlNGS
TABLE 18 (CONT'D)
GENERAL NOTE: Dimensions are in inches.
NOTES:
(1) This dimension is for large end of hub, which may be straight or tapered. Taper shall not exceed 7 deg. on threaded, s l i p
on, socket welding, and lapped flanges.
(2) For tolerances, see Section 7.
(3) For facings, see para. 6.4.
(4) For flange bolt holes, see para. 6.5 and Table 17.
(5) For spot facing, see para. 6.6.
(6)For reducing threaded and slip-on flanges, see Table 7.
(7) Blind flanges may be made with or without hubs at the manufacturer's option.
(8) For reducing welding neck flanges, see para. 6.8.
(9) For welding end bevel, see para. 6.7.
(10) For threads in threaded flanges, see para. 6.9.
96
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
zyxwvuts
zyx
zyx
S T D - A S M E B L b - 5 - E N G L L77b
0 7 5 7 b 7 0 0577473 687
ASME B16.5-1996
PIPE FLANGES AND FLANGED FITTINGS
Table 19 begins on next page
97
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
zyxwv
ASME 816.5-1996
PIPE FLANGES AND FLANGED FITTINGS
zy
zyxwvu
Truo "Y"
Rduorr
E m t r i cR d u w
TABLE 19 DIMENSIONS OF CLASS 600 FLANGED FIlTlNGS1-8
1
2
3
1
4
5
6
7
8
9
12 10
11
13
14
T
zyxwvutsrqponmlk
zyxwvutsrqpo
0.25 In.
Raised Face (91
..
Flange Edg
Centerto-
Range
Edge
Lateral
E
Shorl
CentertoFlange
Edge
Lateral
and Trua
Y"
F
Flange
EdwtoFlange
Edge Raducer
G
Contact
surface
of
Reid
Face
Elbow,
Tee,
Cros%
and True
Y'
AA
Centerto-
Centerta
Contact
surface
of
Raid
Face
45 deg.
Elbow
Short
CentertoContact Sur
faœ of
GI
lnride
Diameter
of
Fittlng,
d
Flange
Edge Elbow,
Tee,
Cross,
md True
Y'
A
cc
Long
Centor
toCon.
tact Surface d
Robed
FaCe
lateral
EE
0.88
0.16
0.16
0.19
0.19
0.22
0.50
0.75
1.o0
1.25
1.50
3.00
3.50
4.00
4.25
4.50
1.75
2.25
2.25
2.50
2.75
5.50
6.50
7.00
7.75
8.75
1.50
1.75
2.00
2.25
2.50
4.50
4.50
4.50
4.50
4.50
3.25
3.75
4.25
4.50
4.75
2.00
2.50
2.50
2.75
3.00
5.75
6.75
7.25
8.00
9.00
1.75
2.00
2.25
2.50
2.75
6.50
7.50
8.25
9.00
10.75
1.o0
1.12
1.25
1.38
1.50
0.25
0.28
0.31
0.34
0.38
2.00
2.50
3.00
3.50
4.00
5.50
6.25
6.75
7.25
8.25
4.M)
4.25
4.75
5.25
5.75
10.00
11.25
12.50
13.75
16.25
3.25
3.25
3.75
4.25
4.25
5.50
6.25
6.75
7.25
8.25
5.75
6.50
7.00
7.50
8.50
4.25
4.50
5.00
5.50
6.00
10.25
11.50
12.75
14.00
16.50
3.50
3.50
4.00
4.50
4.50
5
6
8
10
12
13.00
14.00
16.50
20.00
22.00
1.75
1.88
2.19
2.50
2.62
0.44
0.50
0.62
0.75
0.91
5.00
6.00
7.88
9.75
11.75
9.75
10.75
12.75
15.25
16.25
6.75
7.25
8.25
9.25
9.75
19.25
20.75
24.2 5
29.25
31.25
5.75
6.25
6.75
7.75
8.25
9.75
10.75
12.75
15.25
16.25
10.00
11.00
13.00
15.50
16.50
7.00
7.50
8.50
9.50
10.00
19.50
21.00
24.50
29.50
31.50
6.00
6.50
7.00
14
16
18
20
24
23.75
27.00
29.25
32.00
37.00
2.75
3.00
3.25
3.50
4.00
0.97
1.W
1.22
1.34
1.59
12.88
14.75
16.50
18.25
22.00
17.25
19.25
21.25
23.25
27.25
10.50
11.50
12.00
12.75
14.50
8.75
9.75
10.25
10.75
12.75
17.25
19.25
21.25
23.25
27.25
17.50
19.50
21.50
23.50
27.50
10.75
11.75
12.25
13.00
14.75
34.25
9.00
10.00
10.50
11.00
13.00
Outside
Diameter
of
Flange
O
hickneu
of
Flange,
Min.
C
1
1
1v2
3.75
4.62
4.88
5.25
6.12
0.56
0.62
0.69
0.81
2
214
3
3'/2
4
Nomlnal
Pip.
Slte
Wall
Thlcknesa
of
Fltting,
Min.
Center-
Long
Center-
to-
Flange
Edge
45 deg.
Elbow
C
to-
-
R O W
Faœ htoral and
Trua YFF
zyxwvutsrqponml
'/Z
94
v,
-
98
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
34.00
38.25
41.75
45.25
52.75
38.50
42.00
45.50
53.00
8.00
8.50
zyxwvutsrqponml
996
PIPE FLANGES AND FLANGED FITTINGS
Flanged Fitting
Round
15
0.25 in.
Raised Face (91
Contact
SurfacetoContact
Surface
of
F
Base
TABLE 19 DIMENSIONSCLASS
OF
16
17
18
18
20
21
22
(CONT'D)
23
24
Bare Drilling (161
CentertoEnd
Elbow
Tee
cross
and
True
'Y"
(111
HH
Centerto-
End
45 dag.
Elbow
(11)
KK
Long
CentertoEnd
Lateral
(111
LL
Short
CentertoEnd
Lateral
end
TN.
Y' (111
MM
1.97
2.50
2.50
2.75
3.00
5.72
6.75
7.25
5.00
5.00
3.22
3.75
4.25
4.50
4.75
9.00
1.72
2.00
2.25
2.50
2.75
6.00
6.75
7.25
7.75
8.75
5.81
6.56
7.06
7.56
8.56
4.3 1
4.56
5.06
5.56
6.06
10.31
11.56
12.81
14.06
16.55
3.56
3.56
4.06
4.56
4.56
5.00
600 FLANGED
' Square Base
zyxwvutsrqponm
zyxwv
Raised
Face
Reducer
(10)
GG
5.00
5.00
. 4 Bolt holes '
8.00
Diameter
of
EndtoEnd
Reducer
NN
Centerto-
Base
Il12Ì(1411
R
...
...
...
...
...
r
r
v
Round
Base or
Width of
Squam
Bare (12)
rhickness
S
Bolt
Circle
of
Base
W).
(1511
or
T
rhickness
of
Ribs (121
U
Bolt
Spacing
W
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
Jiarneter
...
...
zyxwvut
zyxwvutsrqpon
zyx
4.75
5.25
5.75
6.50
7.00
6.12
6.12
6.50
6.50
7.50
0.81
0.81
0.88
0.88
1.o0
0.62
0.62
0.75
0.75
0.75
a.50
a.50
5.00
5.00
5.88
0.88
8.25
9.00
11.00
12.50
13.25
10.00
10.00
12.50
12.50
15.00
1.25
1.25
1.W
1. i 4
1.62
0.75
0.75
1 .o0
1.o0
1.12
7.88
7.88
10.62
10.62
13.00
0.88
0.88
0.88
0.88
1.o0
5
6
8
10
12
14.75
16.00
15.00
15.00
1.62
1.62
1.12
1.25
13.00
13.00
1.o0
1.o0
...
...
...
14
16
18
20
24
0.88
0.75
0.75
0.N
2
2 v2
3
3 Y*
zyxwvut
zyxwvutsrqponm
zyx
m
51
4
I
10.25
11.25
13.25
15.75
16.75
17.75
19.75
21.75
23.75
27.75
10.06
11.06
13.06
15.56
16.56
7.06
7.56
8.56
9.56
10.06
19.56
21.06
24.56
29.56
31.56
6.06
6.56
7.06
8.06
8.56
17.56
19.56
21.56
23.62
27.69
10.81
11.81
12.31
13.12
14.94
34.31
38.56
42.06
45.62
53.19
9.06
10.06
10.56
11.12
13.19
v)
c
so
m
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
(Notes follow on next page)
99
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
ASME 816.5-1996
zyxwvutsrqp
TABLE 19 (CONT'D)
GENERAL NOTE: Dimensions are in inches.
NOTES:
(1) For tolerances, see Section 7.
(2) For facings, see para. 6.4.
(3) For flange bolt holes, see para. 6.5 and Table 17.
(4) For spot facing, see para. 6.6.
(5) For intersecting center lines, center-to-contact surface, and center-to-end dimensions of side outlet fittings, see para. 6.2.4.
(6) For center-to-contact surface and center-to-end dimensions of special degree elbows, see para. 6.2.5.
(7) For reinforcement of certain fittings, see para. 6.1.
(8) For drains, see para. 6.12.
(9) For center-to-contact surface and center-to-end dimensions of reducing fittings, see para. 6.2.3.
(10) For contact surface-to-contact surface and end-to-end dimensions of reducers and eccentric reducers, see para. 6.2.3.
(11) These dimensions apply to straight sizes only. (See paras. 6.2.3 and 6.3.1.3.) For the center-to-end dimensions of reducing
fittings or end-to-end dimensions of reducers, usecenter-to-flange edge or flange edge-to-flange edge dimensions for largest
opening, and add the proper height to provide for ring joint groove applying to each flange. See Table5 for ring joint facing
dimensions.
(12) The base dimensions apply to all straight and reducing sizes.
(13) For reducing fittings the size and center-to-facedimensions of base are determined by the size of the largest opening of fitting.
In the case of reducing base elbows, orders shall specify whether the base shall be opposite the larger or smaller opening.
(14) Bases shall be plain faced unless otherwise specified, andthe center-to-baseface dimension R shall be the finished dimensions.
(15) Bases may be cast integral or attached as weldments at the option of the manufacturer.
(16) The bolt hole template for round base is the same as for Class 300 flanges, Table 11, of corresponding outside diameter,
except using only four holes in all cases so placed as to straddle center lines. The bases of these fittings are intended for
support in compression and are not to be used for anchors or supports in tension or shear.
zyxw
100
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
zyxwvuts
zyx
zyxwvutsrq
STD.ASME B L b - 5 - E N G L L 7 7 b
PIPE FLANGES AND FLANGED FllTlNGS
0757b70 0577477 2 2 4
ASME 816.5-1996
CLASS 900 PIPE FLANGES, AND FLANGED FITTINGS
1
Flmgd Fitting
Stud Bolt With Nuts
TABLE 20 TEMPLATES FOR DRILLING CLASS 900 FLANGES2
2
1
3
5
4
6
zyxwvutsrqponm
Nominal
Pipe
Size
5;
9
Length of Bolts [(l),(5)]
1
Drilling [(3), (S)]
3
14
8
7
Outside
Diameter
of
Flange
O
Diameter
of
Bolt
Circle
1
1
1'/2
2
2'4
Diameter
of
Bolt
Holes
Number
of
Bolts
Diameter
of
Bolts
0.25 in.
Raised
Face
Male and
Female;
also
Tongue and
Groove
Ring
Joint
Use Class 1500 dimensions in these sizes.
3
4
9.50
11.50
7.50
9.25
1.o0
1.25
8
8
5.75
6.75
5.50
6.50
5.75
6.75
5
6
8
10
12
13.75
15.00
18.50
21.50
24.00
11.o0
12.50
15.50
18.50
21.o0
1.38
1.25
1.50
1.50
1.50
8
12
12
16
20
7.50
7.50
8.75
9.25
10.00
7.25
7.25
8.50
9.00
9.75
7.50
7.75
8.75
9.25
10.00
14
16
18
20
24
25.25
27.75
31.O0
33.75
41 .O0
22.00
24.25
27.00
29.50
35.50
1.62
1.75
2.00
2.12
2.62
20
20
20
20
20
10.75
11.25
12.75
13.75
17.25
10.50
11.00
12.50
13.50
17.00
11.o0
11.50
13.25
14.25
18.00
zyxwvutsrq
(Notes follow on next page)
101
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
zyxwvutsrqpo
zyxwvutsrqpon
zyxwvutsr
PIPE FLANGES AND FLANGED FITTINGS
ASME 816.5-1996
TABLE 20 (CONT'D)
GENERAL NOTE: Dimensions are in inches.
NOTES:
(1) Length of stud bolt does not include the height of the points.See para. 6.10.2.
(2) For other dimensions, see Tables 21 and 22.
(3) For flange bolt holes, see para. 6.5.
(4) For spot facing, see para. 6.6.
(5) Bolt lengths not shown in Tableare determined in accordance with Annex F. See para. 6.10.2.
102
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
zyxwvut
~~
~
STD.ASME B L b - 5 - E N G L L 9 9 b
zyxwvutsrqponmlkjihgfedcbaZYXWVUTSRQPONML
z
U 7 5 9 b 7 U 0577499 U T 7
zyxwvu
r
g
i
i
i
x
zyxwv
ASME 816.5-1996
PIPE FLANGES AND FLANGED FITTINGS
[Note (1 ) I
+X
+
P"-+
0
4
SlipOn Welding
Threaded
*o+
Lapped
Blind
~
0
-
-
-
-
-
-
4
Welding Neck
zyxwvutsrqponm
TABLE 21 DIMENSIONS OF CLASS 900 FLANGES2*
2
1
4
3
5
7
B
10
O
8
of
Nominal
Pipe
Size
Flange
O
~
v2
VA
Thread
Length
Threaded
Flange
(10).
Min.
T
13
14
Welding
Neck
Radius
of
Bore of
Lapped
Flange
and
Pipe
Counterbore
Threaded
Flange,
Min.
B
r
Corner
zyxwvutsrqponm
zyxwvutsrqponmlkjihgfedcbaZYXW
Outside
)iameter
1
1V A
Hub Diameter
Beginning
of Chamfer Welding Neck
(9)
A
12
11
Bore
Length Through Hub
~~~~
Thickness
of
Flange
Min.
C
~
Diameter
of
Hub
X
~
~~
Threaded
Slip-On
Lapped
Welding
Neck
Y
Y
Y
~~~~
~~~
~
Slip-On
Min.
~
Lapped,
Min.
B B
~~
a
~~~
Use Class 1500 dimensions in these sizes 111).
1v2
2
2 v2
3
4
9.50
11.50
1.50
1.75
5
6
8
10
12
13.75
15.00
18.50
21.50
24.00
2.00
14
16
18
20
24
25.25
27.75
31.00
33.75
41.00
3.3%
r
4.60
3.50
4.50
2.12
2.75
2.12
2.75
4.00
4.50
1.62
1.88
5.56
7.50
9.25 2.19 6.63
8.63
11.75
10.75
14.50
16.50
12.75
3.12
3.38
4.00
4.25
4.62
3.12
3.38
4.50
5.00
5.62
5.00
5.50
6.38
7.25
7.88
2.12
2.25
2.50
2.81
3.00
8.72
10.88
12.88
5.69
6.75 6.72
P
8.75
10.92
o
9r
12.92
14.00
16.00
18.00
20.00
24.00
5.12
6.12
8.38
6.50 5.25 8.50
9.00
7.50
9.75
8.25
10.50 8.00 11.50
3.25
3.38
3.50
3.62
4.00
14.14
16.16
18.18
20.20
24.25
14.18
16.19
18.20
20.25
24.25
5.00
6.25
L
zyxwv
u)
2.50
2.75
3.12
17.75
20.00
22.25
24.50
29.50
3.50
4.00
4.25
5.50
6.00
6.25
5.66
2
g
I
i
P
O
I
I-
zyxw
(Notes follow on next page)
103
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
zyxwvutsrqp
zyxwvutsrqp
zyxwvu
PIPE FLANGES AND FLANGED FITTINGS
ASME 816.5-1996
TABLE 21 (CONT'D)
GENERAL NOTE: Dimensions are in inches.
NOTES:
(1) This dimension is for large end of hub, which may be straight or tapered. Taper shall not exceed 7 dag. on threaded, slipon, socket welding, and lapped flanges.
(2) For tolerances, see Section 7.
(3) For facings, see para. 6.4.
(4) For flange bolt holes, see para. 6.5 and Table 20.
(5) For spot facing, see para. 6.6.
(6) For reducing threaded and slip-on flanges, see Table 7.
(7) Blind flanges may be made with or without hubs at the manufacturer's option.
(8) For reducing welding neck flanges, see para. 6.8.
(9) For welding end bevel, see para. 6.7.
(10) For threads in threaded flanges, see para. 6.9.
(11) Socket welding flanges may be provided in NPS '/2 through 21/2 using Class 1500 dimensions.
104
COPYRIGHT American Society of Mechanical Engineers
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PIPE FLANGES AND FLANGED FITTINGS
ASME 816.5-1996
Table 22 begins on next page
105
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
zy
zyxwvutsrqpon
ASME 816.5-1996
PIPE FLANGES AND FLANGED FITTINGS
Elbow
..
MM
46 dag. Elbow
Cran
46 dag. Lateral
zyxwvutsr
zyx
zy
zyx
zyx
True "Y"
Eccentric Rduœr
Rduar
TABLE 22 DIMENSIONS OF CLASS 900 FLANGED
3
4
5
11
Flange Edge
Center-
to-
Diameter
'4
1
1'/4
9.62
9.50
13.75
15.00
21.50
24.00
33.75
1%
2
272
3
4
5
6
8
10
12
14
16
18
20
41 24
4.75
5.12
5.88
8.25
7.00
8.50
11.50
18.50
25.25
27.75
31.00
.o0
Thlckneaa
of
Flange
Min.
C
Wall
Thlcknesr
of
Fitting.
Min.
Inside
Diametel
of
Flange
Edge
Elbow,
Tee,
Cross,
and
True
"Y"
A
t
Fitting
d
0.88
1.o0
1.12
1.12
0.16
0.19
0.22
0.25
0.50
0.69
0.88
1.12
1.25
1.50
1.62
0.28
0.31
0.34
1.38
1.88
2.25
1.50
1.75
0.41
0.50
2.88
3.88
7.25
8.75
2.00
2.19
2.50
2.75
3.12
0.59
0.72
0.88
1.o6
1.25
4.75
5.75
7.50
9.38
11.12
10.75
11.75
14.25
16.25
18.75
3.38
3.50
4.00
4.25
5.50
1.38
1.56
1.75
1.91
2.28
12.25
14.00
15.75
17.50
21.00
20.00
22.00
23.75
25.75
30.25
Centerto-
Flange
Edge-
toFlange
Edge
Lateral
Lateral
to-
and
True
E
F
Flange
Edge
Reducer
G
Canter-
Flange
Edge
45 dag.
Elbow
C
12
I
13
14
0.25 in. Raried Face (9)
Short
CentertoFlange
Edge
Long
I
7"
CentertoContact
Surface
of
Raised
FaCe Elbow,
Tee,
cross,
and True
7"
AA
CentertoContact
of
RaiMd
Face
45deg.
Elbow
cc
Long
Centertocontact
surfam
of
Raised
Faœ
Lateral
EE
Short
Centerto-
contact
Surface
surface
of
Raid
Face
Lateral
and
True "
Y
'
FF
zyxwv
zyxwvutsrqponm
Use Class 1500 dimensions in these sizes.
-
I
1
5.25
6.25
14.25
17.25
4.25
5.25
7.25
8.75
7.25
7.75
8.75
9.75
10.75
20.75
22.25
27.25
31.25
34.25
6.25
10.75
11.75
14.25
18.25
17.25
11.25
12.25
13.00
14.25
17.75
36.25
40.50
45.25
50.00
59.75
9.25
106
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
15.25
7.50
9.00
5.50
6.50
14.50
17.50
4.50
5.50
11.00
7.50
8.00
9.00
10.00
11.00
21.00
12.0022.50
14.5027.50
16.5031.50
19.0034.50
6.50
6.50
7.50
11.50
12.50
13.25
14.50
18.00
36.50
22.2540.75
24.0045.50
26.0050.25
30.5060.00
9.50
10.25
12.00
13.00
15.50
6.25
7.25
8.25
8.75
20.25
18.50
20.50 10.25
24.00 11.75
26.00 12.75
30.00
8.50
9.00
LANGES
PIPE
AND FLANGED FITTINGS
zyxwvutsrq
ASME 816.5-1996
zyx
Round Base
Flanged Fitting
Base
4 Boit holes
zyxwvu
zyxwvutsrqpon
F
r
1
zyxwvutsrqponmlk
l
Base Elbow
Bare Tee
TABLE 22 DIMENSIONS OF CLASS 900 FLANGED FITTINGS'" (CONT'D)
20
15
0.25 in.
Raired Few (9)
18
2118
l
Ring Joint (I
Centerto-
End
45 deg.
Elbow
hired
Face
Reducer
Centar-
i
Lateral
HH
: ;E
True
"Y" (11)
MM
(11)
GG
:
KK
End
Reducer
NN
1
16
Base Drilling (16)
Diameter
of
Round
Base or
Width of
Square
Bara
Center-
Surface
F
17
(141
s
Thickness
of Base
[(14).
11511
T
Bok
Thick- Circia
or
ness
Bok
of Ribs
(14)
Spacing
U
W
Diameter
of
Drilled
Holes
Nominal
Pipe
Size
zyxw
zyxwvuts
zyx
Use Class 1500 dimensions in these sizes.
I
I
7.75
9.25
7.56
9.06
11.25
11.06
12.06
14.56
16.56
19.06
0.75
0.88
3
4
15.00
10.62
10.62
13.00
0.88
0.88
0.88
0.88
1.00
5
6
8
10
12
15.00
15.00
13.00
13.00
1 .o0
1 .o0
.. .
...
...
14
16
18
20
24
5.75
7.00
4.56
5.56
--
I
14.75
17.75
12.25
16.75
21.06
22.56
6.56
6.56
7.56
8.56
9.06
U
W
O
YI
2
19.00
21.00
24.50
26.50
30.50
20.44
22.44
24.25
26.25
30.88
9.69
10.69
12.25
13.25
15.88
z
al
U)
8.25
9.00
11.00
12.50
13.25
14.75
16.00
...
...
10.00
...
...
(Notes follow on next page)
107
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
zyxwvutsrqpon
zyxwvutsrq
PIPE FLANGES AND FLANGED FllTlNGS
ASME 816.5-1996
TABLE 22 (CONT'D)
GENERAL NOTE: Dimensions are in inches.
NOTES:
( 1 ) For tolerances, see Section 7.
(2) For facings, see para. 6.4.
(3) For flange bolt holes, see para. 6.5 and Table 20.
(4) For spot facing, see para. 6.6.
(5) For intersecting center lines, center-to-contact surface, and center-to-end dimensions of side outlet fittings, see para. 6.2.4.
(6) For center-to-contact surface and center-to-end dimensions of special degree elbows, see para. 6.2.5.
(7) For reinforcement of certain fittings, see para. 6.1.
(8) For drains, see para. 6.12.
(9) For center-to-contact surface and center-to-end dimensions of reducing fittings, see para. 6.2.3.
(IO) For contact surface-to-contact surface and center-to-end dimensions of reducers and eccentric reducers, see para. 6.2.3.
(11) These dimensions apply to straight sizes only. (See paras. 6.2.3 and 6.3.1.3.)For the center-to-end dimensions of reducing
fittings or end-to-end dimensions of reducers, use center-to-flange edge or flange edge-to-flange edge dimensions for largest
opening, and add the proper height to provide for ring joint groove applying to each flange. See Table 5 for ring joint facing
dimensions.
(12) For reducing fittings, the size and center-to-face dimensions of base are determined by the size of the largest opening of
fitting. In the case of reducing base elbows, orders shall specify whether the base shall be opposite the larger or smaller
opening.
(13) Bases shall be plain faced unless otherwise specified, and the center-to-base facedimension R shall be the finished dimension.
(14) The base dimensions apply to all straight and reducing sizes.
(15) Bases may be cast integral or attached as weldments at the option of the manufacturer.
(16) The bolt hole template for round base is the same as for Class 300 flanges, Table 1 1 , of corresponding outside diameter,
except using only four holes in all cases so placed as to straddle center lines. The bases of these fittings are intended for
support in compression and are not to be used for anchors or supports in tension or shear.
108
COPYRIGHT American Society of Mechanical Engineers
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zyxwvutsrqponm
ASME B16.5-1996
PIPE FLANGES AND FLANGED FITTINGS
CLASS 1500 PIPE FLANGES, AND FLANGED FITTINGS
L
Point height [Note (111
Flanged Fitting
Stud Bolt With Nuts
TABLE 23 TEMPLATES FOR DRILLING CLASS 1500 FLANGES2
2
1
F
3
6
5
4
9
zyxwvutsr
zyxwvutsrqpo
zyxwvutsrq
zyxwvutsrqpon
Outside
Diameter
of
Flange
O
Drilling 3).
(41
Bolt
Circle
Diameter
of
Bolt
Holes
4.75
5.12
5.88
6.25
3.25
3.50
4.00
4.38
0.88
0.88
1.o0
1.o0
4
4
4
4
3
7.00
8.50
9.62
10.50
12.25
4.88
6.50
7.50
8.00
9.50
1.12
1.o0
1.12
1.25
1.38
4
8
8
8
8
1
5
6
8
10
12
14.75
15.50
19.00
23.00
26.50
11.50
12.50
15.50
19.00
22.50
1.62
1.50
1.75
2.00
2.12
14
16
18
20
24
29.50
32.50
36.00
38.75
46.00
25.00
27.75
30.50
32.75
39.00
2.38
2.62
2.88
3.12
3.62
Nominal
Pipe
Size
'12
3
14
1
1/'4
F
8
7
1'12
2
21/2
3
4
Diameter
of
Number
of
Bolts
Diameter
of
Bolts
-
~_________
Length of Bolts [(l),
(5)]
L
0.25 in.
Raised
Face
Male and
Female;
also
Tongue and
Groove
Ring
Joint
4.25
4.50
5.00
5.00
4.00
4.25
4.75
4.75
4.25
4.50
5.00
5.00
1
1'/B
1'/4
5.50
5.75
6.25
7.00
7.75
5.25
5.50
6.00
6.75
7.50
5.50
5.75
6.25
7.00
7.75
8
12
12
12
16
1'/2
1
1V 8
1'/B
2
9.75
10.25
11.50
13.25
14.75
9.50
10.00
11.25
13.00
14.50
9.75
10.50
12.75
13.50
15.25
16
16
16
16
16
2V4
214
23/4
3
31/!
16.00
17.50
19.50
21.25
24.25
15.75
17.25
19.25
21.o0
24.00
16.75
18.50
20.75
22.25
25.50
14
3
14
7
/8
78
78
(Notes follow on next page)
109
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
zy
zyxwvutsr
zyxwvutsrqp
PIPE FLANGES AND FLANGED FllTlNGS
ASME 816.5-1996
TABLE 23 (CONT'D)
GENERAL NOTE: Dimensions are in inches.
NOTES:
(1) Length of stud bolt does not include the height of the points. See para. 6.10.2.
(2) For other dimensions, see Tables 24 and 25.
(3) For flange bolt holes, see para. 6.5.
(4) For spot facing, see para. 6.6.
(5) Bolt lengths not shown in Table are determined in accordance with Annex F. See para. 6.10.2.
110
COPYRIGHT American Society of Mechanical Engineers
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zyxwvuts
zyxwvutsrqpo
zyxwvutsrq
zy
STD.ASMEBLb.5-ENGL
TT3
075'7b70 057'7507
1'7'7b
PIPE FLANGES AND FLANGED FITTINGS
ASME 816.5-7996
y"tee7
1
zyxwvutsrq
zyxwvutsrqpo
I
+
+o&
o
Threaded (112 to 2-1/2 only)
4
Slip-On-Welding (112 to 2-1/2 only)
D
o+
Lapped
Socket Welding il/2 to 2-1/2 only)
zyxwvut
o&
-
Blind
Welding Neck
TABLE 24 DIMENSIONS OF CLASS 1500
3
4
5
f
6
7
8
9
I
f
10
Length
Through
Hub
Hub
Diameter
Thread
BeginLength
Outride Thickness
ning of Threaded
Threaded SlipOn
Diameter
of
Diameter Chamfer Slip-On
Flange
Socket
Nominal
Socket
of
of
Welding
Welding,
Flange,
(lo),
Welding
Hub
Neck
Min.
Neck (9) Welding Lapped
Min.
Flange PipeMin.
Sire
C
X
Y
O
A
Y
Y
T
B
11
13
12
Bore
14
Corner
I
Radius
of Bore
of
Counterbore
Lapped
Flange Threaded
and
Flange,
Min.
Pipe
r
Q
15
zyxwvutsrqpon
v>
"/*
1
1'1,
lvz
2
2'/2
3
4
5
6
8
10
12
Lapped,
Min.
Welding
Neck
Socket
Welding
6
6
4.75
5.12
5.88
6.25
0.88
1 .o0
1.12
1.12
1.50
1.75
0.84
1.05
1.32
1.66
1.25
1.38
1.62
2.06
1.62
2.50
1.25
1.38
1.62
1.62
2.38
2.75
2.88
2.88
0.88
1.00
1.12
1.19
0.88
1 .o9
1.36
1.70
0.90
1.11
1.38
1.72
7.00
8.50
9.62
10.50
12.25
1.25
1.50
1.62
1 .88
2.12
2.75
1.90
2.38
2.88
3.50
4.50
1.75
2.25
4.12
2.50
4.88
1.75
2.25
2.50
2.88
3.56
3.25
4.00
4.12
4.62
4.88
1.25
1.50
1.88
1.95
2.44
2.94
1.97
2.46
2.97
3.60
4.60
14.75
15.50
19.00
23.00
26.50
2.88
3.25
3.62
4.25
4.88
5.25
7.75
9.00
1 1 i i
29.50
32.50
18.00
23.50
6.38
36.00
25.257.0038.75 20
46.00 24
11.50
14.50
17.75
19.50
16.00
21.75
5.56
6.63
8.63
10.75
12.75
14.00
20.00
8.00
24.00
30.00
...
6.38
...
...
...
...
...
...
...
...
...
...
...
...
.
I .
...
...
4.12
4.69
5.62
7.00
8.62
6.12
6.75
8.38
10.00
11.12
...
. .,
...
.,.
...
...
...
9.50
10.25
10.88
11.50
13.00
11.75
12.25
12.88
14.00
16.00
...
...
...
.,.
,,,
.,,
...
...
...
...
...
...
...
f.
v
c
r
0.12
0.12
0.12
0.19
0.93
1.14
1.41
1.75
0.38
0.44
0.50
0.56
0.25
0.31
0.31
0.38
1.99
2.50
3.00
0.62
0.69
0.75
0.44
n
BE
5.69
6.75
8.75
10.92
12.92
14.18
16.19
18.20
20.25
24.25
W
B
n
8
I
I
Depth
of
Socket
D
,
...
...
...
...
0.44
0.50
0.50
0.50
0.50
...
0.50
0.50
0.50
0.50
0.50
...
...
...
...
...
...
...
...
...
..
..
..
...
...
...
...
...
...
...
(Notes follow on next page)
111
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
zyxwvuts
zyxwvu
STD-ASME B L b m S - E N G L L99b
=
0 7 5 9 b 7 0 0579508 73T
PIPE FLANGES AND FLANGED FllTlNGS
ASME 616.5-1996
zyxwvutsrqpon
zyxw
TABLE 24 (CONT'D)
GENERAL NOTE: Dimensions are in inches.
NOTES:
( I ) This dimension is for large end of hub, which may be straight or tapered. Taper shall not exceed 7 deg. on threaded, slipon, socket welding, and lapped flanges.
(2) For tolerances, see Section 7.
(3) For facings, see para. 6.4.
(4) For flange bolt holes, see para. 6.5 and Table 23.
(5) For spot facing, see para. 6.6.
(6) For reducing threaded and slip-on flanges, see Table 7.
(7) Blind flanges may be made with or without hubs at the manufacturer's option.
(8) For reducing welding neck flanges, see para. 6.8.
(9) For welding end bevel, see para. 6.7.
(IO) For threads in threaded flanges, see para. 6.9.
112
COPYRIGHT American Society of Mechanical Engineers
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STD-ASME BLb.5-ENGL
zyxw
zyx
zy
0757b70 0 5 7 9 5 0 7 876
L77b
PIPE FLANGES AND FLANGED FITTINGS
ASME B16.5-1996
Table 25 begins on next page
113
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
zyx
zyxwvutsrqpon
z
PIPE FLANGES AND FLANGED FllTlNGS
ASME 816.5-1996
PA
Elbaw
46 dq. Elbow
. Lateral
True "Y"
Rducer
Ecœntric Reducer
TABLE 25 DIMENSIONS OF CLASS 1500 FLANGED FITTINGS'-8
3
1
Thickness
of
Flange,
Min.
C
Nomina
Pipa
size
'/?
4
1
5
T
Wall
rhicknera
of
Fitting,
Min.
tm
8
7
of
Canterto.
Flange
Edge, Elbow,
Tee,
Cmrr,
and True
Fitting,
d
V"
A
0.50
0.69
0.88
1.12
4.00
0.234.25
4.75
0.26
0.315.25
2.75
3.00
3.25
3.75
CentartoFlange
Edge
45 dag.
Elbow
C
Long
Center-
Y"
Flange
Edge-toFlange
Edge Reducer
F
G
...
...
...
...
...
8.75
9.75
2.25
2.75
to-
Flange
Edge
Lateral
E
3.25
3.75
4.25
4.75
5.75
5.75
6.75
7.75
8.75
10.25
6.00
7.25
8.25
9.25
10.75
4.25
4.75
5.25
5.75
7.25
1 1 .o0
13.25
15.25
17.25
19.25
3.50
4.00
4.50
5.00
6.00
23.00
24.62
29.62
35.75
40.50
7.25
7.88
8.88
10.00
11.75
13.25
14.00
15.50
19.75
22.50
13.25
13.88
16.38
19.50
22.25
8.75
9.38
10.88
12.00
13.25
23.25
24.88
29.88
36.00
40.75
7.50
8.12
9.12
10.25
12.00
43.75
48.00
53.00
57.50
67.00
12.25
14.50
16.25
17.50
20.25
25.25
27.75
31.00
33.50
39.25
24.75
27.25
30.25
32.75
38.75
14.25
16.25
17.75
18.75
20.75
44.00
48.25
53.25
57.75
67.25
12.50
14.75
16.50
17.75
20.50
1.38
1 .88
2.25
2.75
3.62
5.75
7.00
8.00
9.00
10.50
4.00
4.50
5.00
5.50
7.00
10.75
13.00
15.00
17.00
19.00
5
6
14.75
15.50
19.00
23.00
26.50
2.88
3.25
3.62
4.25
4.88
0.91
4.38
5.38
7.00
8.75
10.38
13.00
13.62
16.12
19.25
22.00
8.50
9.12
10.62
11.75
13.00
29.50
32.50
38.00
38.75
5.25
5.75
6.38
7.00
8.00
2.19
11.38
13.00
14.62
16.38
19.62
24.50
27.00
2.50
30.00
32.50
38.00
14.00
16.00
17.50
18.50
20.50
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
cc
2.50
3.00
...
114
"Y
AA
9.00
10.00
0.38
0.44
0.50
0.62
0.75
46.00
Centerto-Contact Surface of
Raised
Face Lateral and
True "Y"
FF
4.50
5.25
1.25
1.50
1.62
1.88
2.1 2
2.81
3.12
3.72
12
Short
Long
Centerto-Contact Surface of
Raised
Face
Lateral
EE
...
...
7.00
8.50
9.62
10.50
12.25
14
16
18
20
24
CentertoContact
Surface
of
Raised
Face
45 deg.
Elbow
...
...
1 '/1
2
2v2
3
4
1.72
2.00
13
Raised Facm191
..
3.00
3.25
3.50
4.00
1
1 5;
8
CentertoContact
Surface
of
Raised
Face
Elbow,
Tee,
Cross,
end True
14
0.25 in.
4.25
4.50
5.00
5.50
0.19
10
12
Short
CentertoFlange
w e
Lateral
snd True
i
11
zyxwvuts
zyxwvutsrqponmlk
Insid.
Diameter
0.88
1 .o0
1.12
1.12
1 .o9
1 .O1
10
re
4.75
5.12
5.88
6.25
2;
9
8
zyxwvutsrqponm
PIPE FLANGES AND FLANGED FITTINGS
P
ASME 816.5-1996
I
I
C
zyxwvutsr
zyxwvu
W
7-
t-S---I\
Flanged Fitting
4 Bolt holes
Round Base
Bara Elbow
Square Base
zyxwvu
zyx
-
TABLE 25 DIMENSIONS OF CLASS 1500 FLANGED
15
0.25 in.
Raised Face (9)
F
17
16
18
19
20
21
22
(CONT’D)
23
I
1
24
1 zyxwvutsrq
Ï
zyxwvutsrqponm
Bare Drilling 116)
Ring Joint (9)
Centerto-
Contact Surtace-toContact
Surface of
Rsirad Face
Reducer
(10)
GO
End
Elbow
Tee
Cross
and
True
7(11)
HH
CenterLong
toCenterEnd
to.
45 deg. End
Elbow Lateral
1111
(11)
KK
LL
Of
to-
Round
Base or
Nidth of
Square
Base
(121
End
Lateral
and
True
Y“ (11)
MM
3.00
3.25
3.50
4.00
...
...
...
5.00
5.75
4.25
4.50
5.00
5.50
9.00
10.00
2.50
6.25
7.25
8.25
9.25
10.75
6.00
7.31
8.31
9.31
10.81
4.25
4.81
5.31
5.81
7.31
11.00
13.31
15.31
17.31
19.31
3.50
4.06
4.56
5.06
6.06
13.75
14.50
17.00
20.25
23.00
13.31
14.00
16.56
19.69
22.56
8.81
9.50
11.O6
12.19
13.56
23.31
25.00
30.06
36.19
41.06
7.56
8.25
9.31
10.44
12.31
...
...
)iameter
Short
Center-
...
Center-
EndtoEnd
Reducer
NN
S
Thickness
of Base
1112).
(15)]
T
...
...
...
...
...
...
...
to-
Base
1112)(l4)l
R
...
3.00
r
r
D
a
E
VI
2
PD
W
...
...
...
...
Thickners
of
Ribs (12)
U
...
...
...
...
Bolt
Circle
Bolt
Spacing
Diameter
of
Drilled
W
Holes
...
...
...
...
...
or
...
...
...
...
...
...
...
...
...
5.50
6.00
6.50
7.75
6.50
6.50
7.50
10.00
0.88
0.89
1.o0
1.25
0.75
0.75
0.75
0.75
5.00
5.00
5.88
7.88
0.75
0.75
0.88
0.88
9.00
9.75
1150
13.75
15.50
10.00
12.50
12.50
15.00
15.00
1.25
1.M
1 .44
1.62
1.62
0.75
1.o0
1.o0
1.12
1.12
7.88
10.62
10.62
13.00
13.00
0.88
0.68
0.88
1.00
1.00
Nomlnal
siz.
v2
.v
1
1
v,
1Y*
2
2v 2
3
4
6
6
8
10
12
zyxwvutsrqponm
25.75
28.25
31.50
34.00
39.75
25.12
27.69
30.69
33.19
38.81
14.62
19.19
12.88
44.38
48.69 16.69 15.19
53.69 18.19 16.94
18.19
58.19
67.81 21.31 21.06
17.25
18.75
17.50
17.50
...
...
...
...
...
...
1 .88
1 .88
...
...
...
1.25
1.25
...
...
...
15.25
15.25
...
...
...
1.12
1.12
...
...
...
14
16
18
20
24
(Notes follow on next page)
115
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Licensed by Information Handling Services
ASME 816.5-1996
zyxwvutsrqp
TABLE 25 (CONT'D)
GENERAL NOTE: Dimensions are in inches.
NOTES:
(1) For tolerances, see Section 7.
(2) For facings, see para. 6.4.
(3) For flange bolt holes, see para. 6.5 and Table 23.
(4) For spot facing, see para. 6.6.
(5) For intersecting center lines, center-to-contact surface, and center-to-end dimensions of side outlet fittings, see para. 6.2.4.
(6) For center-to-contact surface and center-to-end dimensions of special degree elbows, see para. 6.2.5.
(7) For reinforcement of certain fittings, see para. 6.1.
(8) For drains, see para. 6.12.
(9) For center-to-contact surface and center-to-end dimensions of reducing fittings, see para. 6.2.3.
( I O ) For contact sudace-to-contact sudace and end-to-end dimensions of reducers and eccentric reducers, see para. 6.2.3.
(11) These dimensions apply to straight sizes only. (See paras. 6.2.5 and 6.3.1.3.) For the center-to-end dimensions of reducing
fittings or end-to-end dimensions of reducers, use center-to-flange edge or flange edge-to-flange edge dimensions for largest
opening, and add the proper height to provide for ring joint groove applying to each flange. See Table5 for ring jointfacing
dimension.
(12) The base dimensions apply to all straight and reducing sizes.
(13) For reducing fittings, the size and center-to-face dimensions of base are determined by the size of the largest opening of
fitting. In the case of reducing base elbows, orders shall specify whether the base shall be opposite the larger or smaller
opening.
(14) Bases shall be plain faced unless otherwise specified, and the center-to-base dimension R shall be the finished dimension.
(15) Bases may be cast integral or attached as weldments at the option of the manufacturer.
(16) The bolt hole template for round base is the same as for Class 300 flanges, Table 11, of corresponding outside diameter,
except using only four holes in all cases so placed as to straddle center lines. The bases of these fittings are intended for
support in compression and are not to be used for anchors or supports in tension or shear.
zyxw
116
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zyxwvutsrqponml
ASME 816.5-1996
PIPE FLANGES AND FLANGED FITTINGS
CLASS 2500 PIPE FLANGES, AND FLANGED FITTINGS
b-
Bolt circle
Flange
Point height [Note (111
zyx
zyxwvutsr
f
zyxwvutsrqp
Flanged Fitting
Stud Bolt With Nuts
TABLE 26 TEMPLATES FOR DRILLING CLASS 2500 FLANGES2
7
Drilling [(3),(4)]
Nominal
Pipe
Size
Outside
Diameter
of
Flange
O
'h
1 4.25 6.25
1'/4
1
'/*
2
2'/*
3
4
9.25
12.00
14.00
5 16.50 12.75
19.00
6
10
12
30.00
8
I
9
0.25 in.
Raised
Face
Male and
Female;
also
Tongue and
Groove
4
4
4
4
4
4.75
5.00
5.50
6.00
6.75
4.50
4.75
5.25
5.75
6.50
4.75
5.00
5.50
6.00
6.75
1.12
6.75
7.75 10.50 1.25
9.00
1.38
1.62
10.75
8
8
8
8
7.00
7.75
8.75
10.00
6.75
7.50
8.50
9.75
7.00
8.00
9.00
10.25
1.88
14.50
2.12
17.25 21.75 2.12
8
21.25 26.50 2.62
2.88
24.38
8
8
12
12
12
11.75
13.50
15.00
19.25
21.25
Diameter
of
Bolt
Circle
Diameter
of
Bolt
Holes
Number
of
Bolts
0.88
0.88
1.o0
1.12
1.25
3.50 5.25
3.75 5.50
74
1
Length of Bolts [(I),
(5)]
1
5.12 7.25
5.75 8.00
Diameter
of
Bolts
GENERAL NOTE: Dimensions are in inches.
NOTES:
(1) Length of stud bolt does not include the height of the points. See para. 6.10.2.
(2) For other dimensions, see Tables 27 and 28.
(3) For flange bolt holes, see para. 6.5.
(4) For spot facing, see para. 6.6.
(5) Bolt lengths not shown in Table are determined in accordance with Annex F. See para. 6.10.2.
117
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
11.50
13.25
14.75
19.00 20.00
21.o0
Ring
Joint
12.25
14.00
15.50
22.00
zyx
zyxwvutsrqpo
PIPE FLANGES AND FLANGED FITTINGS
ASME 816.5-1996
Threaded
zyxwvutsrqp
( V 2 to 2-1D only)
zyxwv
Blind
zyx
zyxwvutsrqpo
Welding Neck
TABLE 27 DIMENSIONS OF CLASS 2500 FLANGES24
1
2
3
4
5
Hub
Didmeter
Beginning of
Chamfer
Welding
Neck (SI
F
6
7
Diameter
of
Hub
1
1
1v 2
5.25
5.50
6.25
7.25
8.00
1.19
1.25
1.38
1.50
1.75
1.69
2.00
2.25
2.88
3.12
0.84
1.O5
1.32
1.66
1.90
1.56
1.69
1.88
2.06
2.38
1.56
1.69
1.W
2.06
2.38
2
2'/2
3
4
9.25
10.50
12.00
14.00
2.00
2.25
2.62
3.00
3.75
4.50
5.25
6.50
2.38
2.88
3.50
4.50
2.75
3.12
5
16.50
19.00
21 75
26.50
30.00
3.62
4.25
5.00
8.00
9.25
12.00
14.75
17.38
5.56
6.63
8.63
10.75
12.75
'/2
s;
6
8
10
12
6.50
7.25
A
9
11
10
Bom
12
13
Corner
Radius
of Bore
of
Lapped
Flange
and
Pipe
r
Counterbore
Threaded
Flange,
Min.
Q
zyxwvutsrq
Thickness
of
flange,
Min.
C
X
f f
Thread
Length
Threaded
Flange
Outside
Diameter
of
Flange
O
Nominal
Pipe
Sire
8
Letr a th Through Hub
Threaded
Y
...
...
...
...
...
...
...
Welding
Neck
(lo),
Welding,
Neck
Y
Min.
T
Lapped.
Min.
B
2.88
3.12
3.50
3.75
4.38
1.12
1.25
1.38
1.50
1.75
0.90
1.11
1.38
1.72
1.97
0.12
0.12
0.12
0.19
0.25
0.93
1.14
1.41
1.75
1.99
2.75
3.12
3.62
4.25
5.00
5.62
6.62
7.50
2.00
2.25
2.46
2.97
3.60
4.60
0.31
0.31
0.38
0.44
2.50
3.00
5.12
6.00
7.00
9.00
10.75
12.50
16.50
18.25
5.69
6.75
8.75
10.92
12.92
0.44
0.50
0.50
0.50
0.50
Lapped
Y
9.00
10.00
...
...
...
...
...
...
...
B
.. .
...
zyx
...
...
...
.. .
...
(Notes follow on next pagel
118
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
zy
zyxwvutsrqp
zyxwvutsrqpo
PIPE FLANGES AND FLANGED FITTINGS
ASME 816.5-1996
TABLE 27 (CONT'D)
GENERAL NOTE: Dimensions are in inches.
NOTES:
(1) This dimension is for large end of hub, which may be straight or tapered. Taper shall not exceed 7 deg. on threaded, slipon, socket welding, and lapped flanges.
(2) For tolerances, see Section 7.
(3) For facings, see para. 6.4.
(4) For flange bolt holes, see para. 6.5 and Table 26.
(5) For spot facing, see para. 6.6.
(6) For reducing threaded and slip-on flanges, see Table 7.
(7) Blind flanges may be made with or without hubs at the manufacturer's option.
(8) For reducing welding neck flanges, see para. 6.8.
(9) For welding end bevel, see para. 6.7.
(10) For threads in threaded flanges, see para. 6.9.
119
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
zyxwvutsrqp
zyxwv
zy
ASME 816.5-1996
PIPE FLANGES AND FLANGED FllTlNGS
i$F
KK
4 5 deg. Elbow
T
AA
"L
Tee
FF
Cros
46 deg. Lateral
zyxwvutsr
T
TABLE 28 DIMENSIONS OF CLASS 2500 FLANGED FITTINGS'-8
1
2
4
3
5
6
7
8
9
10
Flange Edge
Nominal
Pipe
Size
Outside
Diameter
of
Flange
O
CentertoFlange
Edge, Elbow,
Tee,
Cross,
and True
"Y"
A
CentertoFlange
Short
CenterLong
toCentertoFlange
Edge LatFlange Edge
eral and
Edge Latera1
True "Y"
F
E
zyxwvutsrq
Thickness
of
Flange,
Min.
C
Wall
Thickness
of
Fitting,
Min.
tm
Inside
Diameter
of
Fitting,
d
45 deg.
Elbow
C
Flange
Edge-toFlange
Edge Reducer
G
zyxwvutsrqponmlkjihg
...
...
...
...
...
...
...
...
...
5.25
5.50
6.25
7.25
8.00
1.19
1.25
I .38
1.50
1.75
0.25
0.28
0.34
0.44
0.50
0.44
0.56
0.75
1 .o0
1.12
4.94
5.12
5.81
6.62
7.31
4
9.25
10.50
12.00
14.00
2.00
2.25
2.62
3.00
0.62
0.75
0.88
1 .o9
1.50
1.88
2.25
2.88
8.62
9.75
11.12
13.00
5.50
6.00
7.00
8.25
15.00
17.00
19.50
22.75
5.00
5.50
6.50
7.50
9.00
10.00
11.25
13.00
5
6
8
10
12
16.50
19.00
21.75
26.50
30.00
3.62
4.25
5.00
6.50
7.25
1.34
3.62
4.38
5.75
7.25
8.62
15.38
17.75
19.88
24.75
27.75
9.75
11.25
12.50
15.75
17.50
27.00
31 .O0
35.00
43.00
49.00
9.00
10.25
11.50
14.50
16.00
15.25
17.50
20.00
25.00
28.50
74
1
I V4
1 '4
2
2'4
3
1.59
2.06
2.59
3.03
120
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
...
3.75
4.00
4.50
...
...
...
...
...
...
...
zyxwvutsrqpo
ASME 816.51996
PIPE FLANGES AND FLANGED FITTINGS
F l a w Fitting
Reducer
T
Eccentric Reducer
I
'
True "Y"
zyxwvutsrqpo
I
TABLE 28 DIMENSIONS OF CLASS 2500 FLANGED
(CONT'D)
11
12
13
14
16
15
CentertoContact
Surface
of
Raised
Face 45
deg. Elbow
cc
Long
Centerto-Contact Surface of
Raised
Face
Lateral
EE
Short
Centerto-Contact Surface of
Raised
Face Lateral and
True "Y"
FF
Contact
Surfaceto-Contact Surface of
Raised
Face Reducer
(10)
GG
...
...
...
5.19
5.37
6.06
6.87
7.56
...
...
4.00
4.25
4.75
...
8.87
10.00
11.37
13.25
5.75
6.25
7.25
8.50
15.25
17.25
19.75
23.00
15.62
18.00
20.12
25.00
28.00
10.00
...
11.50
12.75
16.00
17.75
...
...
...
27.25
31 -25
35.25
43.25
49.25
1
Rinn Joint (9)
. .
0.25 in. Raised Face (9)
. .
CentertoContact
Surface
of
Raised
Face
Elbow,
Tee,
Cross,
and True
Y"
AA
20 19
18
17
CentertoEnd
Elbow,
Tee
Cross,
and
True "Y"
(11)
HH
End
45 deg.
Elbow
(11)
KK
Long
:entertoEnd
Lateral
(11)
LL
Short
Centerto-End
Lateral
and True
,Y" (11)
MM
...
...
...
Centerto-
...
...
...
4.00
4.31
4.81
5.25
5.75
6.75
7.75
9.50
10.50
11.75
13.50
8.94
10.12
11.50
13.44
5.81
6.38
7.38
8.69
9.25
10.50
11.75
14.75
16.25
15.75
18.00
20.50
25.50
29.00
15.88
18.25
20.44
25.44
28.44
10.25
11.75
13.06
16.44
18.19
...
...
...
...
...
15.31
17.38
19.88
23.19
zyx
Nominal
Pipe
Size
~
5.19
5.19
6.06
6.94
7.62
...
...
...
...
EndtoEnd
Reducer
NN
zy
1
12
...
3
14
...
1
1V4
1'/2
...
...
5.31
5.88
6.88
7.94
2
2'12
3
4
zyx
zyxwvu
27.50
31.50
35.56
43.69
49.69
9.50
10.75
12.06
15.19
16.62
5
6
8
10
12
(Notes follow on next page)
121
COPYRIGHT American Society of Mechanical Engineers
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STD-ASME BLb.5-ENGL
zyxwvuts
zyxwv
1 7 7 6 M 0757b70 0577518 887 M
PIPE FLANGES AND FLANGED FllTlNGS
ASME 816.5-1996
TABLE 28 (CONT'D)
GENERAL NOTE: Dimensions are in inches.
NOTES:
(1) For tolerances, see Section 7.
(2) For facings, see para. 6.4.
(3) For flange bolt holes, see para. 6.5 and Table 26.
(4) For spot facing, see para. 6.6.
(5) For intersecting center lines, center-to-contact surface, and center-to-end dimensions of side outlet fittings, see para. 6.2.4.
(6) For center-to-contact surface and center-to-end dimensions of special degree elbows, see para. 6.2.5.
(7) For reinforcement of certain fittings, see para. 6.1.
(8) For drains, see para. 6.12.
(9) For center-to-contact surface and center-to-end dimensions of reducing fittings, see para. 6.2.3.
(10) For contact surface-to-contact surface and end-to-end dimensions of reducers and eccentric reducers, see para. 6.2.3.
(11) These dimensions apply to straight sizes only. (See paras. 6.2.3 and 6.4.1.3.) For the center-to-end dimensions of reducing
fittings or end-to-end dimensions of reducers, use center-to-flange edge or flange edge-to-flange edge dimensions for largest
opening, and add the proper height to provide for ring joint groove applying to each flange. See Table 5 for ring joint facing
dimensions.
zyxwvutsrqpo
122
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
ANNEX A
zyxwv
zyxw
THREADING OF PIPE FOR AMERICAN NATIONAL STANDARD
THREADED FLANGES
zyxwvuts
zyxw
zyxwvut
zyx
zy
(This Annex is an integral part of ASME 816.5-1996 and is placed after the main text for convenience.)
The length of external taper threads in ASME B 1.20.1
is sufficient to provide a satisfactory joint when assembledwith corresponding internal taper threads in couplings andfittings.
In this Standard, the length of
internal thread in Class 150, Class 300, and Class 400
flanges also conforms to ASME B 1.20.1.
In Class 600 and higher ratedflanges, the length
throughthehubmay
exceed the length for internal
threads in ASME B1.20.1. Where this occurs, the
extended length of internal threads follows the taper
of the standard taper threads. Therefore, the diameters
ofthe extra threads are smaller thanthoseshownin
ASME B1.20.1.
Whenthreadedflanges conforming to this Standard
are assembled with threaded-end pipe,it is intended
close to the
thatthe end of thepipebereasonably
mating surface of the flange. To meetthis intent, the
following requirements are imposed on the mating pipe
and external thread.
(I) Pipe to be threaded into flanges of Class 600
or higher rating shall be Schedule 80 or heavier in
wall thickness.
(2) The length of external effective thread on the
pipeend
shall be greater thanspecified
in ASME
B1.20.1. When tested with the standard ring gage, the
pipe end shall project beyond the gage by the distance
specifiedin Table A l , subject to a tolerance of one
thread pitch as provided in ASME BI .20.1.
(3) The extra threads shall continue the taper specifiedin ASME B 1.20.1, so that the pitch diameter of
the thread at the pipe end is less than specified therein.
(4) It is recommended that power equipment be used
to assemble threaded joints having longer than standard
taper threads, in order to bring thepipe end close to
the flange face.
123
COPYRIGHT American Society of Mechanical Engineers
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TABLE A l
PROJECTION OF THREADED PIPE END THROUGH RING GAGE BY FLANGE PRESSURE
RATING CLASSES
zyxwvutsrqpon
izyxwvutsrqponmlkjih
zyxwvutsrqponm
zyx
zyxwvutsrq
150,300,400
Nominal
Pipe
Sire
5;
3
14
1
1v 4
192
2
Number of Turns
...
...
...
...
...
292
3
31
'2
4
5
6
8
10
12
14
16
18
20
24
600
Number
of
Turns
in.
...
...
...
...
...
...
...
...
.,.
...
...
...
...
0.1 2
0.12
3
0.38
1
11 4
1'/2
0.19
0.19
0.19
392
3'/2
3'/2
0.44
0.44
0.44
2
3
3
3
0.25
0.38
0.38
0.38
4
5
5
6
0.50
0.62
0.62
0.75
3
3
3
3
0.38
0.38
0.38
0.38
6
6
6
6
1
Use taper pipe
thread per
- ASME
81.20.1.
in.
Number
of
Turns
Use taper pipe
thread per
- ASME
61.20.1
1
in these sizes.
1
...
r
900
'/2
...
L
124
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
...
T
1500
Number
of
Turns
in.
39
2
5
5
0.25
0.35
0.44
5
5
5
0.44
0.44
0.44
5
6
0.62
0.75
...
692
692
7'/2
8
9
10
*..
2500
Number
of
Turns
7
7
7'/2
71/2
7'/2
7'/2
8
10
in.
0.50
0.50
0.65
0.65
0.65
0.65
1.o0
1.25
...
...
...
0.81
0.81
0.94
1092
1Os;
1172
1.31
1.31
1.44
1.o0
1.12
1.25
14
15
19
1.75
2.00
2.38
...
...
...
...
...
...
...
...
...
zyxwvut
0.75
0.75
0.75
0.75
...
...
...
...
...
...
...
...
...
...
STDaASME
zyxwvutsr
B L b - S - E N G L L77b M 0757b70 0577523 373
ANNEX B
DIMENSIONS OF STEEL PIPE (TABLE BY WEIGHT CLASS)
(This Annex is not part of ASME 816.5-1996 and is included for information only.)
zyx
TABLE B1 DIMENSIONS OF WELDED AND SEAMLESS STEEL PIPE
(ASME 836.10M)
Listed as Standard Wall. Extra Strong, and Double Extra Strong Wall
zyxwvutsrq
zyxwvutsrqpo
zyxwvutsrqponmlkjihgfe
zyxwvutsr
Wall Thickness, in.
Nominal
Pipe
Site
Extra
Strong
Wall
Double
Extra
Strong
Wall
Outside
Diameter, in.
Standard
Wall
0.405
0.540
0.675
0.068
0.000
0.091
0.095
0.1 19
O. 126
0.840
1.050
1.315
0.109
0.113
0.133
0.147
0.154
0.179
0.294
0.308
0.358
1v4
1v 2
2
1.660
1.900
2.375
0.140
0.145
0.154
0.191
0.200
0.218
0.362
0.400
0.436
2v 2
3
3 72
2.875
3.500
4.000
0.203
0.216
0.226
0.276
0.300
0.318
0.522
0.600
4
5
6
4.500
5.563
6.625
0.237
0.258
0.280
0.337
0.375
0.432
0.674
0.750
0.864
8
10
12
8.625
10.750
12.750
0.322
0.365
0.375
0.500
0.500
0.875
1.o00
1.o00
14
16
18
14.000
16.000
18.000
0.375
0.375
0.375
0.500
0.500
0.500
...
20
24
20.000
24.000
0.375
0.375
0.500
0.500
...
...
1
/a
1
14
3/8
5;
Y4
1
0.500
...
...
...
...
...
...
GENERAL NOTES:
(a) The decimal thicknesses listed for the respective sizes represent their nominal dimensions as
given in ASME B36.10M. For toleranceson wall thicknesses, see appropriate material specifications.
(b) Thicknesses shown in bold face type for Standard Wall areidentical with corresponding thicknesses shown in boldface type for Schedules 20,30, and 40 in Annex C. Those shown in bold
face type for Extra Strong Wall are identical with corresponding thicknesses shown in bold
face type in Schedules 60 and 80 in Annex C. Double Extra Strong Wall has no corresponding
schedule numbers.
125
COPYRIGHT American Society of Mechanical Engineers
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ANNEX C
DIMENSIONS OF STEEL PIPE (TABLE BY SCHEDULES)
zyx
(This Annex is not part of ASME 816.5-1996 and is included for information only.)
zyxwv
zyxwvutsrqponmlk
zyxwvutsrqponmlkj
zyxwvutsrqp
zyxwvutsrqponm
TABLE C l DIMENSIONS OF WELDED AND SEAMLESS STEEL PIPE (ASME 836.10M)
Listed by Schedule Numbers
Nominal Outside
Pipe
)iameter,
Size
in.
ìchedule
10
in.
'chedule ichedule
20
30
in.
in.
~
78
'14
3
1s
Y2
74
1
0.405
0.540
0.675
0.840
1.O50
1.315
...
...
...
...
...
...
...
...
...
...
...
...
...
...
.
.
a
...
...
1.660
1 .goo
2.375
2v 2
3
3Y2
2.875
3.500
4.000
...
...
4
5
6
4.500
5.563
6.625
...
...
...
8
10
12
8.625
10.750
12.750
14
16
18
20
24
30
...
...
...
chedule ìchedule
60
80
in.
in.
~
~~
...
...
...
174
1
2
v*
~
ichedule
40
chedule
1O0
chedule Schedule
140
120
in.
in.
0.095
0.119
O. 126
...
...
...
...
...
...
..
..
..
...
...
...
..
..
0.188
0.219
0.250
...
in.
...
0.109
0.113
0.133
...
...
O. 147
0.154
O. 179
...
...
...
...
0.140
0.145
0.154
...
...
...
...
0.191
0.200
0.218
...
...
...
...
0.276
0.300
0.318
...
...
...
...
...
...
...
...
in.
~~
~~
0.068
0.088
0.091
...
in.
chedule
160
...
...
...
...
..
,..
...
...
...
,..
0.250
0.281
0.344
...
...
...
*..
...
0.375
0.438
...
...
0.531
0.625
0.719
...
...
...
...
0.203
0.216
0.226
...
...
...
...
...
...
0.237
0.258
0.280
...
...
0.337
0.375
0.432
...
...
...
0.438
0.500
0.562
...
...
...
0.250
0.250
0.250
0.277
0.307
0.330
0.322
0.365
0.406
0.406
0.500
0.562
0.500
0.594
0.688
0.594
0.719
0.844
0.719
0.844
1.o00
0.81 2
1.o00
1.125
0.906
1.125
1.312
14.000
16.000
18.000
0.250
0.250
0.250
0.312
0.312
0.31 2
0.375
0.375
0.438
0.438
0.500
0.562
0.594
0.656
0.750
0.750
0.844
0.938
0.938
1.O31
1.156
1.O94
1.219
1.375
1.250
1.438
1.562
1.406
1.594
1.781
20.000
24.000
30.000
0.250
0.250
0.312
0.375
0.375
0.500
0.500
0.562
0.625
0.594
0.688
0.812
0.969
1.O31
1.219
1.281
1.531
1.500
1.812
1.750
2.062
1.969
2.344
...
...
...
...
...
...
...
...
...
...
...
...
...
...
GENERAL NOTES:
(a) The decimal thicknesses listed for the respective pipe sizes represent their nominal dimensions as given in ASME 836.10M.
For tolerances on wall thicknesses, see appropriate material specifications.
(b) Thicknesses shown in bold face type for Schedules 20,30, and 40 are identical with thicknesses shown in bold face type for
Standard Wall pipe in Annex B. Those in bold face type Schedules 60 and 80 are identical with thicknesses in bold face type
for Extra Strong Wall in Annex B.
(c) Some of the larger heavier wall sections are beyond the capabilities of seamless mill production and must be obtained from
turned-and-bored billets or other sources.
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ANNEX D
METHODS FOR ESTABLISHING PRESSURE-TEMPERATURE RATINGS
(This Annex is not part of ASME B16.5-1996and is included for information only.)
D l GENERAL
D1.l Introduction
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D l .3 Material Groups
Material groups in Tables 1A are based on identical
or closely matched allowable stress and yield strength
values. Wherethey are not identical, the lower value
hasbeen applied.
Note that material groups are not numbered consecutively. Some groups are intended for use only in valves.
See ASMEB16.34.
Pressure-temperature ratings in this Standard have
been determined by the procedures in this Annex.
The primary consideration in establishing ratings is
adequate wall thickness to sustain stresses due to pressure and other loadings. See para. Dl .2. Other considerations affecting or limiting the ratings include:
(1) stresses in flanges resulting from bolt-up necess a r y tomaintain gasket seal;
(2) distortion of flangesandflangedfittingsdue
to loadings transmitted through the pipeline; and
(3) limitations applying primarilytovalves
but
imposed also on flanges in order to maintain compatible
ratings.
D l .4 Material Properties
The allowable stress andyield strength valuesused
to calculate the pressure-temperature ratings were taken
from the ASMEBoiler
and Pressure Vessel Code,
Section II, Part D. In addition, data has been provided
directly by the ASME Boiler and Pressure Vessel
Subcommittee onMaterials.
D1.2 Wall Thickness
D2 RATINGS IN CUSTOMARY UNITS
Wall thickness requirements for flangedfittings are
set forth in para. 6.1, and minimum thicknesses tm are
listed in the tables designated in para. 6.1. These values
are all greater thanthose determined by Eq. (I):
Ratings given in Table 2 in pounds per square inch
(gage) at temperatures expressed in degrees Fahrenheit,
for all materials and pressure classes, are established
by Eq. (2):
zyxw
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t = 1.5 PCd/(2S - 1.2 P,)
where
D2.1 Rating Equation
(1)
PT = PJ118750 2 P,
t = calculated thickness, in.
P , = pressure rating class designation, psi(e.g.,
P, = ceiling pressure, psig, asspecified in D3 at
temperature T
PT = rated working pressure, psig, for the specified
materialat temperature T
P, = pressure rating class index, psi'(e.g., P, =
300 psi for Class 300)
SI = selected stress, psi, for the specified material
at temperature T. See paras. D2.2, D2.3,
and D2.4.
P, = 150 psi for Class 150)
d = inside diameter of the fitting, in.
S = stress factor of 7000 psi
Equation (1) gives a thickness 50% greater than for
a simple cylinder designed for a stress of 7000 psi
when subjected toan internal pressure equal to the
pressure rating class designation in pounds per square
inch. Actualvaluesin
the dimension tables listed in
para. 6.1 are approximately 0.1 in. to 0.2 in. heavier
than those given by the equation.
' This definition of P , does not apply to Class 150. See para. D2.4.
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(2)
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S T D - A S M E B L b * S - E N G L L77b 9
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D2.2 Ratings for Group No. 1 Materials, Class
300 and Higher
(a) At temperatures belowthe
creep range, S1 is
determined in accordance with para.D2.2(a), except
that 70% of yield strength shall be used, instead of
60%, inparas. D2.2(a)(l) and (2).
(6) At temperatures in the creep range (defined as
those above 950°F for Group No. 2 materials), SI is
determined in accordance with para. D2.2(b). For Group
No. 3 materials, the creep range temperature limits
shall be determined on an individual material basis.
(c) The limitations in paras. D2.2(c), (d), (e), and
(f) apply.
The selected stress SIfor each Material Group among
Group No. 1 materials in Table 1A is determined as
follows:
(a) At temperatures below the creep range, SIshall
be lowest of the following values:
( I ) 60% of specified minimum yield strength at
100°F;
(2) 60% of the yield strength at temperature T;
(3) 1.25 times the allowable stress at temperature
T as listed for ASME Boiler and Pressure Vessel Code,
Section I;
(b) At temperatures in the creep range (defined as
those above 700°F for Group No. 1 materials), S1 shall
be the lowest of the following values:
(1) 60% of the yield strength at temperature T;
(2) the allowable stress at Temperature T as listed
for ASME Boiler and Pressure Vessel Code, Section I;
(c) In no case shall the value of S1 increase with
increasing temperature.
( d ) Yield strength values for determination of values
of S1 shall be obtained from ASME Boiler and Pressure
Vessel Code, Section II, Part D.
(e) Where more than one allowable stress value is
listed for a material at any temperature, the lower
values shall be used.If lower allowable stress values
do not appear, and it is notedinthe allowable stress
table that the allowable stress values exceed two-thirds
of the yield strength at temperature, then the allowable
stress values shall be determined as two-thirds of the
tabulated yield strength at temperature.
cf3 Allowable stress values listed for ASME Boiler
and Pressure Vessel Code, Section VIII,Division 1,
may be usedonly if the material is not listed for
Section I. Allowable stress valueslisted for ASME
Boiler and Pressure Vessel Code, Section III, Classes
2 and 3, may be used only if the material is not listed
for either Section I or Section VIII,Division 1.
D2.4 Ratings for Class 150, All Material
Groups
Pressure-temperature ratings for Class 150 flanges
andflanged fittings are determined for each Material
Group as set forth in paras. D2.1, D2.2, and D2.3,
withthe following exceptions.
(a) The value of P, in Eq. (2) (see para. D2.1) shall
be115psi
rather than 150 psi.
(b) The value for S1 shall be in accordance with
the requirements ofparas.D2.1,D2.2,
and D2.3.
(c) The value for PT inEq. (2) at temperature T
(degrees Fahrenheit) shall not exceed that given by
Eq. (3):
PT
= 320 - 0.3T
(3)
The limits of T in equation (3) are 100°F min. and
1000°F max. For values of T less than 100"F, T equal
to 100°F is used.
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D3 MAXIMUM RATINGS
D2.3 Ratings for Group Nos. 2 and 3
Materials, Class 300 and Higher
D3.1 Maximum Ratings
The selected stress S1 for each material group among
Group Nos. 2 and 3 materials in Table 1A is determined
as follows.
A set of maximum or ceiling pressure-temperature
ratings, P,, are shown in Table Dl. They are imposed
to limitdeflections.
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S T D - A S M E BLb.5-ENGL
0 7 5 7 b 7 0 0577525 T 1 7
L77b
TABLE D l RATING CEILING VALUES
r
Working
Temperature,
"F
150
300
400
-20 to 100
200
300
290
260
230
750
750
730
400
500
600
200
170
140
650
700
750
ressure, psig. by Classes
I
600
900
1500
2500
1O00
1O00
970
1500
1500
1455
2250
2250
2185
3750
3750
3640
6250
6250
6070
705
665
605
940
885
805
1410
1330
1210
2115
1995
1815
3530
3325
3025
5880
5540
5040
125
110
95
590
570
530
785
755
710
1175
1135
1065
1765
1705
1595
2940
2840
2660
4905
4730
4430
800
850
900
80
65
50
510
485
450
675
650
600
1015
975
900
1525
1460
1350
2540
2435
2245
4230
4060
3745
950
1O00
1050
35
20
...
385
365
360
515
485
480
775
725
720
1160
1O90
1080
1930
1820
1800
3220
3030
3000
1100
1150
1200
...
...
...
325
275
205
430
365
275
645
550
410
965
825
620
1610
1370
1030
2685
2285
1715
...
...
...
180
140
105
245
185
140
365
275
205
545
410
31O
910
685
51 5
1515
1145
860
...
...
...
75
60
40
1O0
80
55
150
115
85
225
175
125
380
290
205
630
485
345
1250
1300
1350
1400
1450
1500
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ANNEX E
LIMITING DIMENSIONS OF GASKETS
Other than Ring Joint
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(This Annex is an integral part of ASME 816.5-1996 and is placed after the main text for convenience.)
E l SCOPE
This Annex covers gasket characteristics.
E2 GASKETMATERIALS AND
CONSTRUCTION
Classification of gasket materials and types is shown
in Fig. El. Other gaskets, whichresult in no increase
inbothloads
or flangemomentoverthoseresulting
from the gaskets included in the respective groups in
this Appendix, may beusedandwarrant
the ratings
of this Standard withthe limiting dimensions of the
applicable group. See also para. 5.4 for application of
gaskets.
E3 GASKET DIMENSIONS
from the tabulated dimensions, consideration should be
giventothe
stability of the gasket under highbolt
loads. As a general rule, the area of unconfined nonmetallic gaskets should not be less that the total bolt area.
(c) Gaskets are divided into three groups based on
their gasket loading factors as shownin the ASME
Boiler and Pressure Vessel Code, Section VIII, Division
1, Pressure Vessels.
(d) Gasket contact widths for the three groups are
as follows:
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Group No. I
Group No. II
Group No. III
Slip-on flange raised face width
Large tongue width
Small tongue width minus 0.03 in.,
but not less than 0.18 in.
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(a) The actual dimensions of a gasket mustbe
established by theuser. Reference to a dimensional
standard for gaskets, such as ASME B16.21, is recommended. In any case, selected dimensions should be
based on thetype of gasket andits characteristics.
These characteristics include its density, flexibility, resistance to the fluid and its temperature, and the necessity for satisfactorily compressing the gasket on its
inside diameter, its outside diameter, or both. Alsoto
be considered is the question of allowing a “pocket”
at the gasket inside diameter (between the flange facings), or of allowing any intrusion of the gasket into
theflangebore. Consideration should begiven to the
service fluidaswell
as to the possibility of damage
which might result from partially disintegrated gaskets.
( b ) Limiting gasket dimensions are given in Tables
E l , E2, and E3. These dimensions represent approximately the maximum combinations of widths and diameters of the different types of gaskets covered which
meet rating requirements. Variations whichtend
to
reducebolt loads and flange moments (e.g., reducing
the gasket width) may be made; however, in departing
( e ) Gaskets of Group No. Ia have inside diameters
equal tothe outside diameter of the corresponding
pipe, which follows the principle established in
ASME B16.21. In order to avoid pocketing of fluid
handled, Group No. I gaskets may be extended to
the inside diameter of valves, pipe, or the bore of
integral, welding neck, or socket weld type flanges.
Group No. Ia gaskets have outside contact diameters
equal to the outside diameter of the raised face.
If) Gaskets of Groups Nos. IIa and IIIa also have
inside diameters equal to the outside diameter of
the corresponding pipe. Itmaybe
desirable under
some conditions tomakethe
inside diameter of
these gaskets equal to the inside diameter of valves,
pipe, or the bore of integral, welding neck, or socket
weldtypeflanges,and
this is permissible provided
the gasket contact width does not exceed that shown.
This provision affects gaskets shownin Figs. E4,
E5, E8, and E9 and requires a reduction in gasket
outside diameters as well as inside diameters.
Additional provisions for varying gasket widths
incontactwith
raised face are covered in para.
E3(b). Group Nos. IIb and IIIb have outside contact
diametersequal to theoutsidediameter of the
raised face.
(g) The outside diameter of gaskets or centering
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rings extending beyondtheraisedface
is equal to
thebolt circle minus one boltdiameter. This type
gasket is designed to be aligned by the flange bolts.
(h) Group Nos. IIa and IIIa gaskets are designed
for thoseuserswhopreferthatnarrowgasketsbe
located close to the bore, thereby keeping the pressure
area to a minimum and giving maximum flexibility
to theflanged joint. See para. E3(f). Group Nos.
IIb and IIIb gaskets are to be located at the outside
of the raised face for ease in aligning thegaskets
withoutacentering ring.
(i) Group No. Ia gaskets with edges extending
to the bolts(seeFig.
E3) are dimensionally the
same as the correspondingflatring
gaskets given
in ASME B16.21. See para.E3(c).
E4 TOLERANCES
Gasket contact widths for Group Nos. II and III
shall notexceedspecified
contact widthbymore
than 10%.
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Gasket
Group
Number
Gasket Material
Sketches
self-energizing types:
O rings, metallic, elastomer, other gasket types
considered as self-sealing
Elastomer without fabric
Eompressed sheet suitable for the operating conditions
la
Elastomer with cotton fabric insertion
Elastomer with or without wire reinforcement
Vegetable fiber
Spiral-wound metal, with nonmetallic filler
Ib
Corrugated aluminum, copper or copper alloy or
corrugated aluminum, copper or copper alloy double
jacketed with nonmetallic filler
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Corrugated aluminum, copper, or brass
Corrugated metal or corrugated metal double jacketed
with nonmetallic filler
Corrugated metal
Ila and Ilb
Flat metal jacketed with nonmetallic filler
Grooved metal
Solid flat soft aluminum
Ila and lllb
€2
Solid flat metal
Ring joint
FIG. E I
GASKET GROUPS AND TYPICAL MATERIALS
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TABLE E l
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= 0757b70
0577527 b b 4
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GROUP NOS. la and Ib GASKETS
[Note (111
b
diameter
L
I -
Gasket
outside diameter
inside
diameter
Gasket
outside diameter
[Note (2)l
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RAISED
FACE
FIG. ~ 2 3SLIP-ON
Nominal
Size
Gasket
Contact
Width (1)
W
r
FIG. E33 SLIP-ON RAISEDFACE WIDTH GASKET
WITH EDGES EXTENDING TO
THE
BOLT
WIDTH GASKET
Fig. E3
Fig. E2
Inside
Diameter
Outside
Diameter
Inside
Diameter
T
Outside Diameter 12)
..
150
300
400
600
900
1500
2500
1.88
2.25
2.62
3.00
2.12
2.62
2.12
2.12
2.62
2.62
2.88
2.88 2.88
3.25
3.25
2.50
2.75
3.12
3.50
2.50
2.75
3.12
3.50
2.75
3.00
3.38
4.12
1.91
2.38
3.50
3.38
4.12
4.88
5.38
3.75
3.75
4.38 4.38
5.12
5.12
5.88
5.88
3.75
4.38
5.12
5.88
3.88
5.62
6.50
6.62
3.88
5.62
6.50
6.88
4.62
5.75
6.62
7.75
6.38
6.88
7.75
8.75
6.50
6.38
7.12 7.00
8.50
8.38
9.88
9.75
6.38
7.62
9.50
10.50
...
...
...
8.50
4.00
4.50
5.56
6.62
8.12
9.75
11-38
8.25
10.00
11.12
9.25
11.00
12.50
0.27
0.31
0.34
0.42
0.84
1.O6
1.66
1.38 0.84
1.O6
1.69
2.00 1.31 1.31
2.50
1.66
0.48
0.62
0.62
0.75
1.91 2.88
2.38
2.88
3.50
3.62
4.12 2.88
5.00
4
5
6
0.75
0.84
0.88
0.94
4.00 5.50
4.50 6.19
5.56 7.31
6.62
8
10
12
14
1.o0
1.o0
1.12
1.12
8.62
10.62
10.75 12.75
12.75 15.00
14.00 16.25
8.62
10.75
12.75
14.00
11.o0
13.38
16.12
17.75
12.12
12.00
14.25 14.12
16.62
16.50
19.12 19.00
12.62
15.75
18.00
19.38
14.12
17.12
19.62
20.50
13.88
17.12
20.50
22.75
15.25
18.75
21.62
16
18
20
24
1.25
1.50
1.50
1.62
16.00
18.50
18.00 21.00
20.00 23.00
24.00 27.25
16.00
18.00
20.00
24.00
20.25
21.62
23.88
28.25
21.25 21.12
23.50 23.38
25.75 25.50
30.50 30.25
22.25
24.12
26.88
31.12
22.62
25.12
27.50
33.00
25.25
27.75
29.75
35.50
...
3’/2
3.25
...
...
...
...
GENERAL NOTE: Dimensions are in inches.
NOTES:
(1) Applies to both Figs. E2 and E3. Gasket diameters may be varied. See para. E3(b).
(2) Gasket outside diameter may be extended, or an attached centering service may be used. The outside diameter of extended
metallic gaskets or of any centering ring may be 0.12 in. less than specified.
(3) Slip-on type flange is shown for illustration purposes only. Gaskets may be used with other types of flange. See para. E3(e).
136
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STD-ASME BLb-5-ENGL L 7 9 b 9 0759b70 0579530 386 9
TABLE E2A GROUP NO. Ila GASKETS
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inside diameter
Gasket contact
outside diameter
I W [Note
[Note It
F
outside diameter
[Note 1 2 1
inside diameter
Gasket
outride diameter
FIG.E53LARGE TONGUE WIDTH GASKET WITH
GASKET I.D. EQUAL TO PIPE
I.D., WITH
CENTERING
RING
FIG.
E43
LARGE
TONGUE WIDTH GASKET WITH
GASKET I.D. EQUAL TO PIPE I.D.
r
I
Fig. €4
Gasket
Contact
Outside
Diameter
r
c
Fig. E3
m
Centerina Rina Outside Diameter (21
. .
Gasket
Contact
Width (1)
W
Inside
Diameter
0.19
0.19
0.25
0.31
0.84
1.O6
1.31
1.66
1.22
1.44
1.B1
2.28
0.84 1.22
1.88
1.O6
1.44
2.25
1.31
1.81
2.62
2.28 1.663.00
1
2
2’/2
3
0.38
0.38
0.38
0.38
1.91
2.38
2.88
3.50
2.66
3.12
3.62
4.25
2.66
1.91
3.12
2.38
2.83 3.62
3.50 4.25
3.75
3.38
4.12
4.38
4.88 5.12
5.38
5.88
3’/2
4
5
6
0.38
0.50
0.50
0.50
4.00
4.50
5.56
6.62
4.00 4.75
4.75
4.50 5.50
5.50
5.56 6.56
6.56
7.62
7.62 6.62
6.38
6.50
7.12
6.88
7.75
8.50
8.75 9.88
8
10
12
14
0.62
0.75
0.75
0.75
8.62
10.75
12.75
14.00
9.88
12.25
14.25
15.50
8.62 9.88
12.25
10.75
14.25
12.75
14.00 15.50
11.00 12.12
13.38 14.25
16.12 16.62
17.75 19.12
12.00 12.62
14.12 15.75
16.50 18.00
19.00 19.38
16
18
20
24
0.88
0.88
1.o0
1.o0
16.00
18.00
20.00
24.00
17.75
19.75
22.00
26.00
16.00 17.75
18.00
19.75
20.00 22.00
24.00 26.00
20.25 21.25
21.62 23.50
23.88 25.75
28.25 30.50
21.12
23.38
25.50
30.25
Nominal
Size
1
12
3
/4
1
1’/4
’/*
Outside
Diameter
Inside
Diameter
2.12
2.62
2.88
3.25
-
400
600
1500
2500
2.12
2.62
2.88
2.12
2.50
2.75
2.62
2.88
3.12
3.50
3.25 3.25
-
2.50
2.75
3.12
3.50
2.75
3.00
3.38
4.12
3.88
5.62
6.50
6.62
-
3.88
5.62
6.50
6.88
4.62
5.75
6.62
7.75
3.75
3.75
4.38
4.38
5.12
5.12
5.88 5.83
6.38
7.00
8.38
9.75
6.38
7.62
9.50
10.50
900
...
...
8.12
8.25
9.75 10.00
11.38 11.12
-
9.25
11.00
12.50
14.12
17.12
19.62
20.50
-
13.88
17.12
20.50
22.75
15.25
18.75
21.62
22.62
25.12
27.50
33.00
25.25
27.75
29.75
35.50
...
zyxwvutsrqponm
22.25
24.12
26.88
31.12
...
.. .
...
...
...
GENERAL NOTE: Dimensions are in inches.
NOTES:
(1) Applies to both Figs. E4 and E5. Gasket diameters may be varied, provided the gasket contact width does not exceed that
shown, subject to tolerances in para. E4. See para. E3(d).
(2) Metallic gaskets may have attached centering device. The outside diameter of any centering ring may be 0.12 in. less than
specified.
(3) Slip-on type flange is shown for illustration purposes only. Gaskets may be used with other types of flange. See para. E3(f).
137
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
TABLE E2B GROUP NO. Ilb GASKETS
inside diameter
I
zyxw
p
i Gasket
diameter
zyx
zyxwvut
zyxw
zyxwv
r
outside diameter
[Note (211
outside diameter
FIG.E63LARGE TONGUE WIDTH GASKET WITH
GASKET OUTSIDE DIMENSION EQUAL TO O.D. OF
RAISED FACE
FIG.E73LARGE TONGUE WIDTH GASKET WITH
EDGES EXTENDING TO THE BOLT
zyxwvuts
zyxwvutsrqpon
T
Gasket
Contact
Width (1)
W
Fig1. EI6
Fia. E7
r
Outside Diameter (2)
zyxwvuts
zyxwvutsrqp
Inside
Diameter
Outside
Diameter
400
600
1.38
1.69
2.00
2.50
1.o0
1.31
1.50
1.88
2.12
1.88 2.12
2.62
2.62
2.25
2.88 2.622.88
3.25
3.00
3.25
2.12
174
0.19
0.19
0.25 1
0.31
1.o0
1.31
1.50
1.88
15;
2
2 5;
3
0.38
0.38
0.38
0.38
2.12
2.88
3.38
4.25
2.88
3.62
4.12
5.00
2.12
2.88
3.38
4.25
3.38
3.75
4.12 4.38
4.88 5.12
5.88
5.38
3'/2
4
0.38
0.50
0.50 5
0.50 6
4.75
5.19
6.31
7.50
5.50
6.19
7.31
8.50
4.75
5.19
6.31
7.50
6.38
6.88
7.75
9.38
11.25
13.50
14.75
10.62
12.75
15.00
16.25
9.38
11.25
13.50
14.75
12.12
11.00
13.38 14.25
16.12 16.62
19.12
17.75
12.00
14.12
16.50
19.00
16.75
19.25
21.o0
25.25
18.50
21.o0
23.00
27.25
16.75
19.25
21.o0
25.25
21.25
20.25
21.62 23.50
23.88 25.75
28.25
30.50
21.12
23.38
25.50
30.25
Nominal
Size
'12
3
4
Inside
Diameter
150
300
900
2500
1500
2.88
3.25
2.50 2.502.75
3.00
2.62
2.75
3.12 3.123.38
4.12
3.50 3.50
3.75 3.75
4.38
4.38
5.12
5.12
5.88
5.88
4.62
3.88 3.88
5.62 5.625.75
6.62
6.50
6.50
6.88 6.627.75
2.75
~
8
10
12
14
0.62
0.75
0.75
0.75
16
18
20
24
0.88
0.88
1.o0
1.o0
6.50
7.12
8.50
9.88 8.759.75
i i i i
...
i i 1 i Ii
10.50
11.38
11.12
12.50
12.62
15.75
18.00
19.38
14.12
17.12
19.62
20.50
13.88
17.12
20.50
22.75
15.25
18.75
21.62
22.25
24.12
26.88
31.12
22.62
25.12
27.50
33.00
25.25
27.75
29.75
35.50
zyxwvutsrq
GENERAL NOTE: Dimensions are in inches.
NOTES:
(1) Applies to both Figs. E6 and E7. Gasket diameters may be varied, provided the gasket contact width does not exceed that
shown, subject to tolerances in para. E4. See para. E3(d).
(2) Gasket outside diameter may be extended, or an attached centering device may be used. The outside diameter of extended
metallic gasket or of any centering ring may be 0.12 in. less than specified.
(3) Slip-on type flanges are shown for illustration purposes only. Gaskets may be used with other types of flange. See para. E3(f).
138
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
TABLEE3A
GROUP NO. llla GASKETS
zyxwv
zyxwv
zyxwvut
inside diameter
Center,ng ring
diameter
Gasket
outside diameter
I
[Note D l ]
FIG. Eg3 SMALL TONGUE WIDTH GASKET WITH
GASKET
I.D.
EQUAL
TO
PIPE O.D., WITH
CENTERING RING
FIG. E83 SMALL TONGUE WIDTH GASKET WITH
GASKET I.D. EQUAL TO PIPE O.D.
r
Fig. E8
Nominal
Size
1
12
3
14
Gasket
Contact
Width (1)
W
Inside
1
1/'4
0.19
0.19
0.19
0.19
0.84
1.O6
1.31
1'/2
2
2'/2
3
0.19
0.19
0.19
0.19
3 '/2
4
5
6
0.19
0.22
0.22
0.22
Outside
Diameter
Inside
Diameter
outride diameter
outride diameter
Gasket
Contact
Outside
Diameter
zyx
zyx
Fig. E9
r
Centering Ring Outside Diameter (2)
. .
150
300
400
-
2500
600
900
1500
2.50
2.75
3.12
3.50
-
2.50
2.75
3.1 2
3.50
-
0.84
1.O6
1.31
1.66
1.22
1.44
1.69
2.03
1.88
2.25
2.62
3.00
-
2.12
2.62
2.88
3.25
2.12
2.62
2.88
3.25
2.12
2.62
2.88
3.25
-
1.91
2.28
2.38 2.75
2.88 3.25
3.50 3.88
1.91
2.38
2.88
3.50
2.28
2.75
3.25
3.88
3.38
4.12
4.88
5.38
-
3.75
4.38
5.12
5.88
3.75
4.38
5.12
5.88
3.88
3.75
5.62
4.38
6.50
5.12
6.62
5.88 -
4.00
4.50
5.56
6.62
4.38
4.94
6.00
7.06
4.00
4.50
5.56
6.62
4.38
4.94
6.00
7.06
6.38
6.88
7.75
8.75
-
6.50
7.12
8.50
9.88
6.38
7.00
8.38
9.75
...
...
6.38
8.12
8.25
9.25
7.62
9.75 10.00 11.o0
9.50
11.12 12.50
1 1.38 10.50 -
8.62
10.75
12.75
14.00
9.19
11.44
13.44
14.69
11.o0
13.38
16.12
17.75
-
12.12
14.25
16.62
19.12
12.00
14.12
16.50
19.00
12.62
15.75
18.00
19.38
-
14.12
17.12
19.62
20.50
-
13.88 15.25
17.12 18.75
20.50 21.62
22.75
...
-
16.00
18.00
20.00
24.00
16.81
18.81
20.94
24.94
20.25
21.62
23.88
28.25
21.25
23.50
25.75
30.50
21.12
23.38
25.50
30.25
22.25
24.12
26.88
31.12
22.62
25.1 2
27.50
33.00
25.25
27.75
29.75
35.50
1.22
1.44
1.69
2.03 1.66
8
10
12
14
0.28
0.34
0.34
0.34
8.62
9.19
10.75 1 1.44
12.75
13.44
14.69
14.00
16
18
20
24
0.41
0.41
0.47
0.47
16.00
16.81
18.00 18.81
20.00 20.94
24.00
24.94
GENERAL NOTE: Dimensions are in inches.
2.75
3.00
3.38
4.12
3.88
4.62
5.62
5.75
6.62
6.50
7.75
6.88
-
...
zyxw
zyxwvuts
-
...
...
...
...
NOTES:
(1) Applies to both Figs. E8 and E9. Gasket diameters may be varied, provided the gasket contact width does not exceed that
shown, subject to tolerances in para. E4. See para. E3(d).
(2) Metallic gaskets may have attached centering device. The outside diameter of
any centering ring may be 0.12 in. less than
specified.
(3) Slip-on type flangesare shown for illustration purposesonly. Gaskets may be used with other types of
flange. See para. E3(f).
139
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
zyxwv
zyxw
r
GROUP NO. lllb GASKETS
TABLEE3B
I
outside diameter
FIG. Elo3 SMALL TONGUE WIDTH GASKET WITH
GASKET O.D. EQUAL TO O.D. OF RAISED FACE
zyxwvutsrqp
Nominal
Size
1
12
74
Gasket
Contact
Width (1)
W
0.19
0.19
Fig. E l l
Fig. E10
Outside Diameter (2)
Inside
Diameter
Outside
Diameter
.o0
Inside
Diameter
1.38 1
1
1’/d
0.19
0.19
0.22
0.22
0.22
6
5.50
6.88
8.06
8
10
12
14
0.28
0.34
0.34
0.34
10.06
12.06
16
18
20
24
0.41
0.41
0.47
0.47
17.69
20.19
22.06
300
400
600
900
2.12
1.o0
1.88
1.31 1.69 2.25
1.31 2.62
1.62 2.00 2.62
1.62 0.19
2.88
3.25
2.12 2.50 3.00
2.12 0.19
2.12
2.62
2.88
3.25
2.12
2.62
2.88
3.25
2.50 2.50
2.50
3.25
3.75
4.62
3.75
3.38
4.12
4.38
4.88 5.12
5.88
5.38
3.75
4.38
5.12
5.88
3.75
4.38
5.12
5.88
3.88
4.62
3.88
5.62 5.62 5.75
6.50
6.50
6.62
6.62
7.75 6.88
5.12
5.75
6.88
8.06
6.50
6.38
6.88 7.12
7.75 8.50
8.75 9.88
6.38
7.00
8.38
9.75
6.38
7.62
9.50
10.50
12.00
14.12
16.50
19.00
12.62
15.75
18.00
19.38
10.62
10.06
12.75
12.06
15.00 14.31 14.31
16.25 15.56 15.56
150
11.00
13.38
16.12
17.75
12.12
14.25
16.62
19.12
...
8.12
9.75
1500
...
10.00
2500
2.75
3.00 2.75 2.75
3.38 3.12 3.12
4.12 3.50 3.50
...
9.25 8.25
11.00
12.50 11.12 11.38
14.12
13.88 15.25
17.12 17.12
18.75
19.62
21.62
20.50
22.75 20.50
...
...
...
...
...
zyxwvuts
18.50
21.00
23.00
27.25 26.31
GENERAL NOTE: Dimensions are in inches.
NOTES:
FIG. E l l 3 SMALL TONGUE WIDTH GASKET WITH
EDGES EXTENDING TO THE BOLT
17.69
20.19
22.06
26.31
20.25
21.62
23.88
28.25
21.25
23.50
25.75
30.50
21.12
23.38
25.50
30.25
22.25
24.12
26.88
31.12
22.62
25.25
25.12
27.75
27.50
29.75
33.00 35.50
(1) Applies to both Figs. E10 and E l l . Gasket diameters may be varied, provided the gasket contact width does not exceed that
shown, subject to tolerances in para. E4. See para. E3(d).
(2) Gasket outside diameter may be extended, or an attached centering device may be used. The outside diameter of extended
metallic gasket or of any centering ring may be 0.12 in. less than specified.
(3) Slip-on type flanges are shown for illustration purposes only. Gaskets may be used with other types of flange. See para. E3(f).
140
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STDSASME B L b . 5 - E N G L
19960757b70
057953'i T21
zyx
zyxwvutsrqpon
zyxw
ANNEX F
METHOD FOR CALCULATING BOLT LENGTHS'
zyxwvutsrqp
zyxwvutsr
zyxwvutsrqp
zyxwvut
(This Annex is not part of ASME B16.5-1996 and is included for information only. See para. 6.10.2.)
C = minimumflange thickness3 (see Tables 9, 12,
15,18,21,24,and
27)
F = total height of facings or depth of ring joint
groove for bothflanges (see Table F1)
G = 0.12 in. gasket thickness for raised face, male
andfemale and tongue and groove flanges;
also approximate distance between ring joint
flanges listed in Table 5
LcMB = calculated machineboltlength
as measured
from underside of headtoendof
point
LCsB = calculated studbolt length (effective thread
length, excluding end points)
LsMB = specified machine bolt length (from underhead
to end, including endpoint)which
is LcMB
rounded off to the nearest 0.25 in. increment
(see Fig. F2)
LssB = specifiedstudboltlength
(effective thread
length, excluding end points)which is LCSB
rounded off to the nearest 0.25 in. increment
(see Fig. F1)
a = zero, except where the small female face is
on the end of pipe, a = O. 19 in.
d = heavy nut thickness (equals nominal bolt diameter, see ASME B18.2.2)
n = negative tolerance on boltlength (see Table
F2)
p = allowance for height of point of machine bolt
(= 1.5 times thread pitch)
r = plustoleranceforflangethickness(see
para. 7.3)
The following formulas wereusedin
establishing
dimension L in Tables 8, 11,14,17,20,23,and
26.
They are given for convenience in determining lengths
not given in the tables.
zyxwvuts
zyxwvutsr
Lese [Seefootnote (2)] = A + n
L C M [See
~ footnote (2)] = B + n
where
A = 2(C + t + d) + G + F - a, i.e.,studbolt
length exclusive of negative length tolerance n
B = 2(C + t ) + d + G + F + p - a, Le., machine
bolt length exclusive of negative tolerance n
'
The equations used in this Annex arefor calculated bolt lengths
established to assure full thread engagement of heavy hexagon nuts
when worst case tolerances occur on all relevant dimensions of the
flanged joint. The use of shorter bolt lengths is acceptable provided
that full thread engagement is obtained at assembly (see para. 6.10.2).
'For lapped joints calculate stud bolt and machine bolt lengths as
follows.
For ring joint groove facing:
zyxwvutsr
LcsE = A
+ (pipe
thickness foreach lap)
+n
LCMB = B
+ (pipe
thickness for each lap)
+n
For other than ring joint facing:
Less = A - F + (Table F3 thicknesses) + n
LCMB= B
- F + (Table
F3 thicknesses)
+n
0.06 in. raised face is included in minimum flange thickness for
Classes 150 and 300 flanges.
141
COPYRIGHT American Society of Mechanical Engineers
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zyxwvu
zyxwvu
zyxwv
TABLE F1 F VALUES
Total Height of Facings or Depth of Ring Joint Groove
for Both Flanges F,
in.
I
Type of
Facina
Flange
Flanged
Joint
0.06 in.
150 and 300
400 to 2500
Zero (2)
O.12
Raised
0.25 in.
Class
Raised
(1)
Male and Female
or
Tongue and Groove
0.25
0.25 0.50
0.50
Ring Joint
2 X groove depth
2 x groove depth
NOTES:
(1) See Fig. 8 and Tables 4 and 5.
(2) Raised face (0.06in.) is included in minimum flange thickess for Classes 150 and 300 flanges.
TABLE F2 n VALUES
I
zyxw
zyxwv
Dimension
Negative Tolerance on Bolt Lengths
n, in.
Length,
in.
Stud Bolt
A
or
[A + (pipe thickness for each lap)]
or
[A - F + (Table F3 thicknesses)]
0.06
0.12
0.25
512
> I 2, <I 8
>18
Machine Bolt
B
or
[B + (pipe thickness for each lap)]
or
[B - F (Table F3 thicknesses)]
For n values, use negative length
tolerances per ANSI 818.2.1.
...
+
zyxwv
zyxw
TABLE F3 THICKNESSES FOR LAPPED JOINTS
Lap Combination
For lapped to 0.06 in. raised face
For lapped to lapped
For lapped to 0.25 in. male face on
flange
For lapped to female face on flange
For male in lap to female in lap
Classes 150 and
300 Flanges
One lap
Both laps
...
...
...
142
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
Classes 400 t o 2500 Flanges,
inclusive
...
Both laps
One lap and 0.25 in.
One lap not less than 0.25 in.
2 x pipe wall with lap for male not
less than 0.25 in.
zyxwvuts
zyxwvu
zyx
FIG. F I
STD.ASME B L b - 5 - E N G L L 7 7 b
0 7 5 7 b 7 0 057953b 8 T 4
SPECIFIED STUD BOLTLENGTH
FIG. F2SPECIFIED
143
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
MACHINE BOLT LENGTH
zyxwv
zyxw
zyxw
ANNEX G
QUALITY SYSTEM PROGRAM
(This Annex is an integral part of ASME 816.5.1996 and is placed after the main text for convenience.)
zyxwvutsrq
The products manufacturedin accordance with this
Standard shall be produced under a qualitysystem
program following the principles of an appropriate
standard from the I S 0 9000 series.’ A determination
of the need for registration andor certification of the
’
The series is also available fromtheAmericanNationalStandards
Control
Institute (ANSI) and
the
American Society for Quality
(ASQC) as American National Standardsthatare
identified by a
prefix “ Q replacing the prefix “ I S O . Eachstandard of the series
is listed underAnnex H.
product manufacturer’s quality systemprogram by an
independent organization shall bethe responsibility of
the manufacturer. The detailed documentation demonstrating program compliance shall be available tothe
purchaser at the manufacturer’s facility. A written summary description of the program utilized by the product
manufacturer shallbe available to the purchaser upon
request. The product manufacturer is defined as the
entity whose name or trademark appears on the product
in accordance with the marking or identification requirements of this Standard.
145
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zyxwvutsr
zyx
STD-ASME BLb.5-ENGL
L99b M 0757b70 0577538 h77 M
ANNEX H
REFERENCES
(This Annex is an integral part of ASME 816.5-1996and is placed after the main text for convenience.)
zyxw
The following is a list of standardsandspecifications referenced in this Standard,
showing the year of approval. Products covered by each ASTM specification are listed
for convenience. (See specifications for exact titlesand detailed contents.)
ASME Publications
ASME B1.l-1989
ASME B1.20.1-1983(R1992)
ASME B16.20-1993
ASME B16.21-1992
ASME B16.34-1996
ASME B18.2.1-1981(R1992)
ASME B18.2.2-1987(R1993)
ASME B31.3-1992
ASME B36.10M-1985
ASME B46.1-1985
Unified Inch Screw Threads (UN and UNR Thread
Form)
Pipe Threads, General Purpose (Inch)
Metallic Gaskets for Pipe Flanges - Ring Joint,
Spiral-Wound and Jacketed
Nonmetallic Flat Gaskets for Pipe Flanges
Valves - Flanged, Threaded, and Welding End
Square and Hex Bolts and Screws - Inch Series
Square and Hex Nuts (Inch Series)
Chemical Plant and Petroleum Refinery Piping
Welded and Seamless Wrought Steel Pipe
Surface Texture (Surface Roughness, Waviness, and
Lay)
ASME Boiler and Pressure Vessel Code, 1992 Edition (Including Addenda
through 1994)
zyxwvutsr
zyxwvuts
Section I
Section II
Section III
Section VIII, Div. 1 & 2
Power Boilers
Materials
Nuclear Power Plant Components
Pressure Vessels
ASTM Publications
A 105-95b
A 106-95
A 182-95~
A 193-9%
Forgings, Carbon Steel, for Piping Components
Seamless Carbon Steel Pipe for High Temperature
Service
Forged or Rolled Alloy Steel Pipe Flanges, Forged
Fittings, and Valves and Parts for High Temperature Service
Alloy-Steel and Stainless Steel Bolting Materials for
High-Temperature Service
147
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
STD-ASME BLb.5-ENGL
A 194-95a
A 203-93
A 204-93
A 216-93
A 217-93
A 307-94
A 320-95'
A 350-96
A 351-94a
A 352-93
A 354-95
'
A 449-93
A 453-95
A 515-94
A 516-90
A 537-91
A 540-95
B127-94a'
B160-93
B 162-93a'
B 164-93
B166-95
1 9 9 b W 0 7 5 7 b 7 0 0577537 503
Carbon and Alloy Steel Nuts for Bolts for HighPressure and High-Temperature Service
Pressure Vessel Plates, Alloy Steel, Nickel
Pressure Vessel Plates, Alloy Steel, Molybdenum
Steel Castings, Carbon, Suitable for Fusion Welding, for High-Temperature Service
Steel Castings, Martensitic Stainless and Alloy, for
Pressure-Containing Parts, Suitable for High-Temperature Service
Heat-Resisting Chromium and Chromium-Nickel
Stainless Steel Plate, Sheet, and Strip for Pressure
Vessels
Carbon Steel Bolts and Studs, 60,000 psi Tensile
Strength
Alloy-Steel Bolting Materials for Low-Temperature
Service
Forgings, Carbon and Low-Alloy Steel, Requiring
Notch Toughness Testing for Piping Components
Steel Castings, Austenitic, Austenitic-Femtic (Duplex), for Pressure-Containing Parts
Steel Castings, Ferritic and Martensitic, for Pressure-Containing Parts, Suitable for Low-Temperature Service
Quenched and Tempered Alloy Steel Bolts, Studs,
and Other Externally Threaded Fasteners
Pressure Vessel Plates, Alloy Steel, Chromium-Molybdenum
Quenched and Tempered Steel Bolts and Studs
Bolting Materials, High-Temperature, 50 to 120 ksi
[345 to 827 Mpa] Yield Strength, With Expansion Coefficients Comparable to Austenitic Steels
Pressure Vessel Plates, Carbon Steel, for Intermediate- and Higher-Temperature Service
Pressure Vessel Plates, Carbon Steel, For Moderateand Lower-Temperature Service
Pressure VesselPlates, Heat-Treated, Carbon-Manganese-Silicon Steel
Alloy-Steel Bolting Materials for Special Applications
Nickel-Copper Alloy (UNS N04400) Plate, Sheet,
and Strip
Nickel Rod and Bar
Nickel Plate, Sheet and Strip
Nickel-Copper Alloy Rod, Bar and Wire
Nickel-Chromium-Iron Alloys (UNS N06600,
NO6601 and N06690) and Nickel-Chromium-Cobalt-Molybdenum Alloy (UNS N06617) Rod, Bar
and Wire
Nickel-Chromium-Iron Alloys (UNS N06600,
N06601, and N06690) and Nickel-Chromium-Cobalt-Molybdenum Alloy (UNS N06617) Plate,
Sheet and Strip
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A 240-95b
A 387-92'
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'
B168-95
148
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
B 333-95
B 335-95
B 408-95
B 409-95
B 424-93
B 425-93
B 434-95
B 435-94
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B 443-93
B 446-93
B 462-95
B 463-93
B 473-95
B 511-93
B 536-95
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B 564-95a'
B 572-94
B 573-95
B 574-94'
Nickel-Molybdenum Alloy Plate, Sheet and Strip
Nickel-Molybdenum Alloy Rod
Nickel-Iron-Chromium Alloy Plate, Sheet and Strip
Nickel-Iron-Chromium Alloy Plate, Sheet, and Strip
Ni-Fe-Cr-Mo-Cu Alloy (UNS NO8825 and N08821)
Plate, Sheet and Strip
Ni-Fe-Cr-Mo-Cu Alloy (UNS NO8825 and UNS
N08221) Rod and Bar
Nickel-Molybdenum-Chromium-Iron Alloy (UNS
N10003) Plate, Sheet and Strip
UNS N06002, UNS N06230, and UNS R30556
Plate, Sheet, and Strip
Nickel-Chromium-Molybdenum-Columbium Alloy
(UNS N06625) Plate, Sheet, and Strip
Nickel-Chromium-Molybdenum-Columbium Alloy
(UNS N06625) Rod and Bar
Forged or Rolled UNS N08020, UNS N00824, UNS
N08026, and UNS NO8367 Alloy Pipe Flanges,
Forged Fittings, and Valves and Parts for Corrosive High-Temperature Service
UNS N08020, UNS NO8024 and UNS NO8026
Alloy Plate Sheet and Strip
UNS N08020, UNS N08026, and UNS NO8024
Nickel Alloy Bar and Wire
Nickel-Iron-Chromium-Silicon Alloy Bars and
Shapes
Nickel-Iron Chromium-Silicon Alloys (UNS
NO8830 and N08332) Plate, Sheet, and Strip
Nickel Alloy Forgings
UNS N06002, UNS N06230, and UNS R30556 Rod
Nickel-Molybdenum-Chromium-Iron Alloy (UNS
N 10003) Rod
Low-Carbon Nickel-Molybdenum-Chromium and
Low-Carbon Nickel-Chromium Molybdenum
Alloy Rod
Low-Carbon Nickel-Molybdenum-Chromium and
Low-Carbon Nickel-Chromium Molybdenum
Alloy Plate, Sheet, and Strip
Nickel-Chromium-Iron-Molybdenum-Copper Alloy
Rod
Nickel-Chromium-Iron-Molybdenum-Copper Alloy
Plate, Sheet and Strip
Nickel-Iron-Chromium-Molybdenum-Columbium
Stabilized Alloy (UNS N08700) Plate, Sheet and
Strip
Nickel-Iron-Chromium-Molybdenum Alloy (UNS
N08320) Plate, Sheet, and Strip
Nickel-Iron-Chromium-Molybdenum Alloy (UNS
N08320) Rod
UNS N08904, UNS N08925, UNS NO803 1, UNS
N08932, and UNS NO8925 Plate, Sheet and Strip
'
B 575-94
B 581-94'
'
B 582-93
B 599-93b
B 620-93
B 621-95
B 625-93a
149
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
B 649-93
B 672-95
E 29-93
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Ni-Fe-Cr-Mo-Cu Low Carbon Alloy (UNS N08904)
and Ni-Fe-Cr-Mo-Cu-N Low Carbon Alloys
(UNS N08925, UNS N08031, and UNS N08926)
Bar and Wire
Nickel-Iron-Chromium-Molybdenum Columbium
Stabilized Alloy (UNS N08700) Bar and Wire
Using Significant Digits in Test Data to Determine
Conformance with Specifications
International Standards Organization (ISO)
IS0 9000- 1: 1994
Quality management and quality assurance standards - Part 1: Guidelines for selection and use
IS0 9000-2: 1993
Quality
management
and
quality assurance standard - Part 2: Generic guidelines for the application of IS0 9001, I S 0 9002, and I S 0 9003
I S 0 9000-3: 1991
Quality management and quality assurance standards - Part 3: Guidelines for the application of
IS0 9001 to the development, supply and maintenance of software
IS0 9001: 1994
Quality systems - Model for quality assurance in
design, development, production, installation, and
servicing
I S 0 9002: 1994
Quality systems - Model for quality assurance in
production and servicing
IS0 9003: 1994
Quality systems - Model for quality assurance in
final inspection and test
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MSS Publications
MSS SP-9-1992
MSS SP-25-1978(R1985)
MSS SP-44-1991
MSS SP-45-1992
MSS SP-61-1992
Spot Facing for Bronze, Iron, and Steel Flanges
Standard Marking System for Valves, Fittings,
Flanges, and Unions
Steel Pipe Line Flanges
Bypass and Drain Connections
Pressure Testing of Steel Valves
Publications of the following organizations appear in the above list:
ASME
The American Society of Mechanical Engineers
345 East 47th Street, New York, New York 100172392
ASME Order Department
22 Law Drive, Box 2300, Fairfield, New Jersey
07007-2300
150
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services
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0757b70 0577542 U T A
STDmASME BLb.5-ENGL
L77b
ASQC
American Society for Quality Control
P.O. Box 3005, Milwaukee, Wisconsin 53201-3005
ASTM
American Society for Testing and Materials
100 Barr Harbor Drive, West Conshohocken, Pennsylvania 19428-2959
IS0
International Organization for Standardization
1, rue de Varembé, Case postale 56, CH-1 121 Genive 20, SwitzerlandSuisse
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MS S
Manufacturers Standardization Society of the
Valve & Fittings Industry
127 Park Street, N.E., Vienna, Virginia 22180
IS0 documents are available from ANSI. Publications appearing above which have
been approved as American National Standards may also be obtained from ANSI.
ANSI
American National Standards Institute, Inc.
11 West 42nd Street, New York, New York, 10036
151
COPYRIGHT American Society of Mechanical Engineers
Licensed by Information Handling Services