CEN ENS22553 94
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3404589 OOqb855 080
BS EN
22553 : 1995
IS0 2553 : 1992
BRITISH STANDARD
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Welded, brazed and soldered
joints Symbolic representation on
drawings
The European Standard EN 22553 : 1995 has the status of a
British Standard
UDC U21.791 : 744.44.003.62
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CEN EN*22553 94
m
3404589 009b85b TL7 W
BS EN 22553 : 1995
Committees responsible for this
British Standard
The preparation of this British Standard was entrusted to Technical Committee
WEE/1, Definitions and symbols for welding, upon which the following bodies
were represented:
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Aluminium Federation
Associated Offices Technical Committee
British Institute of Non-destructive Testing
British Iron and Steel Producers’ Association
City and Guilds of London Institute (Advisory Committee)
Institute of Materials
Institution of Structural Engineers
National Association of Teachers in Further and Higher Education
Railway Industry Association
Society of Motor Manufacturers and Traders Ltd.
Welding Institute
Welding Manufacturers’ Association (BEAMA Ltd.)
This British Standard, having
been prepared under the
direction of the Engineering
Sector Board was published
under the authority of the
Standards Board and comes into
effect on
15 May 1995
O BSI 1995
Amd. No.
Date
Tkxt affected
The following BSI references
relate to the work on this
standard:
Committee reference WEE/1
Draft announced in
BSI News January 1995
ISBN O 580 24141 6
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CEN ENJ22553 94
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3404589 0 0 ï b 8 5 7 953
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BS EN 22553 : 1995
Contents
p%e
Inside front cover
ii
2
3
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Committees responsible
National foreword
Foreword
Tèxt of EN 22553 : 1995
Copyright European Committee for Standardization
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i
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CEN EN*<22553 9 4
3404589 0096858 8 9 T
BS EN 22563 : 1995
-
National foreword
This British Standard has been prepared by Technical Committee WEEI1 and is is
the English language version of EN 22553 : 1994 Welded, brazed and soldered
joints - Symbolic representation on drawings, published by the European
Committee for Standardization (CEN).
EN 22553 : 1994 was produced as a result of international discussion in which
the UK took an active part.
m
BS EN 22553 : 1995 supersedes BS 499 : Part 2 : 1980 which is withdrawn.
Cross-references
Corresponding British Standard
EN 20544 : 1991
(IS0 544 : 1989)
EN 24063 : 1991
(IS0 4063 : 1990)
BS EN 20544 : 1991 Specvication for sixesfor filler
meltals for manual welding
BS EN 24063 : 1992 Welding, brazing, soldering and
braze welding of metals. Nomenclature of processes and
reference numbersfor symbolic representations on
drawings
BS EN 25817 : 1992 Arc-weldedjoints in steel. &idance
on quality levelsfor imper$ections
BS EN 28167 1 1992 Specvieation for projectionsfor
resistance welding
BS EN 30042 : 1994 Arc-weldedjoints in aluminium
and its weldable alloys. Cuidance on quality levelsfor
imperfections
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Publicationreferred to
EN 25817 : 1992
(IS0 5817 : 1992)
EN 28167 : 1992
(IS0 8167 : 1989)
EN 30042 : 1994
(IS0 10042 : 1992)
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Compliance with a British Standard does not of itself confer immunity from
legal obligations.
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CEN EN*Z2553 94 I3404589 009b859 7 2 b
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EN 22553
EUROPEAN STANDARD
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 1994
UDC 62 I. 791 :744.44.003.62
Descriptors: Drawings, technical drawings, welded joints, brazed and soldered joints, symbols, graphic symbols
English version
SchweiP - und Löthähte - Symbolische
Darstellung in Zeichnungen
(IS0 2553 : 1992)
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Joints soudés et brasés - Représentations
symboliques sur les dessins
(IS0 2553 : 1992)
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(IS0 2553 : 1992)
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Welded, brazed and soldered joints - Symbolic
representation on drawings
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This European Standard was approved by CEN on 1994-05-12. CEN members
are bound to comply with the CENKENELEC Internal Regulations which
stipulate the conditions for giving this European Standard the status of a
national standard without any alteration.
Up-to-date lists and bibliographieal references concerning such national
standards may be obtained on application to the Central Secretariat or to any
CEN member.
This European Standard exists in three official versions (English, French,
German). A version in any other language made by translation under the
responsibility of a CEN member into its own language and notified to the
Central Secretariat has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium,
Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy,
Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland
and United Kingdom.
CEN
European Committee for Standardization
Comité Européen de Normalisation
Europäisches Komitee für Normung
Central Secretariat: rue de Stassart 36, B-1050 Brussels
O 1994 Copyright reserved to CEN members
Ref. No. EN 22553 : 1994 E
Copyright European Committee for Standardization
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CEN E N * Z 2 5 5 3 94
3404589 009b8b0 448
Page 2
EN 22553 : 1994
Contents
Endorsement notice
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Scope
Normative references
General
Symbols
Elementary symbols
Combinations of elementary
symbols
4.3 Supplementary symbols
Position of the symbols on drawings
5
5.1 General
5.2 Relationship between the arrow line
and the joint
5.3 Position of the arrow line
5.4 Position of the reference line
5.5 Position of the symbol with regard
to the reference line
Dimensioning of welds
6
6.1 General rules
6.2 Main dimensions to be shown
7
Complementary indications
7.1 Peripheral welds
7.2 field or site welds
7.3 Indication of the welding process
7.4 Sequence of information in the tail
of the reference mark
Examples for application of spot
8
and seam joints
Annexes
A
Examples of use of symbols
B
Guidance for converting drawings
made in accordance with IS@2553 :
1974 into the new system in
accordance with IS0 2553 : 1991
Annex ZA (normative)
Normative references to
international publications with their
relevant European publications
zf
The text of the International Standard
IS0 2553:1992 was approved by CEN as a
European Standard with the modification of the
design B.2 in annex B.
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NOTE. Normative references to international publications are
listed in annex ZA (normative).
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3
3
3
4
4
7
8
10
10
10
12
12
13
14
14
14
20
20
20
20
20
21
23
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52
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1
2
3
4
4.1
4.2
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The text of the International Standard IS@2553 :
1992 prepared by IS@/ïC44,Welding and allied
processes, was submitted to the Unique Acceptance
Procedure (UAP) and was approved as EN 22553
on 1994-05-12 without any modification.
This European Standard shall be given the status of
a national standard, either by publication of an
identical text or by endorsement, at the latest by
November 1994.
This European Standard has been prepared under a
mandate given to CEN by the Commission of the
European Communities and the European Free
Trade Association, and supports essential
requirements of EC Directive(s).
According to the CENKENELEC Internal
Regulations, the following countries are bound to
implement this European Standard: Austria,
Belguim, Denmark, Finland, France, Germany,
Greece, Iceland, Ireland, Italy, Luxembourg,
Netherlands, Norway, Portugal, Spain, Sweden,
Switzerland and United Kingdom.
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Foreword
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CEN ENx22553 94 E 3 4 0 4 5 8 9 0 0 9 b ô b L 384
Page 3
EN 22553 : 1994
Welded, brazed and soldered joints
representation on drawings
- Symbolic
reference numbers íor symbolic representation on
drawings.
This International Standard prescribes the rules to
be applied for the symbolic representation of
welded, brazed and soldered joints on drawings.
IS0 5817:1992, Arc-welded joints in sfeel - Guidance
on quality levels for imperfections.
m
1 Scope
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IS0 6947:1990, Welds - Working positions
nitions of angles of slope and rotation.
Normative references
2
- Defi-
IS0 8167:1989, Projections for resistance welding.
The following standards contain provisions which,
through reference in this text, constitute provisions
of this International Standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to
agreements based on this International Standard
are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Meinbers of IEC and IS0 maintain
registers of currently valid International Standards.
IS0 10042:-1', Arc-welded joints in aluminium and its
-
Guidance on qualify levels for
General
3
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weldable alloys
imperfections.
bz
3.1
IS0 128:1982, Technical drawings - General principles of presentation.
-
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IS0 544: 1989, Filler materials for manual welding
Size requirements.
IS0 1302:1978, Technical drawings - Method of indicating surface texture on drawings.
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I S 0 2560: 1973, Covered electrodes for manual arc
welding of mild steel and low alloy steel - Code of
symbols for identification.
I S 0 3098-1:1974, Technical drawings - Lettering Part I: Currently used characters.
I S 0 3581:1976, Covered electrodes for manual arc
welding of stainless arid other similar high alloy
steels - Code of symbols for idenfificalion.
IS0 4063:1990, Welding, brazing, soldering and braze
welding of metals - Nomenclafure of processes and
Joints may be indicated with the general recommendations for technical drawings. However, for
the purpose of simplification, it is advisable to adopt,
for usual joints, the symbolic representation described in this' International Standard.
3.2 The symbolic representation shall give clearly
all necessary indications regarding the specific joint
to be obtained without over-burdening the drawing
with notes or showing an additional view.
3.3 This symbolic representation includes an elementary symbol which may be completed by
- a supplementary symbol;
-
a means of showing dimensions;
- some complementary indications (particularly for
workshop drawings).
In order to sirnpliv the drawings as much as
possible it is recommended that references be made
to specific instructions or particular specifications
giving all details of the preparation of edges to be
3.4
1 ) To be published.
Copyright European Committee for Standardization
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CEN ENm22553 9 4
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Page 4
EN 22553 : 1994
welded, brazed and soldered and/or welding, brazing and soldering procedures, rather than showing
these indications on the drawings of the welded
parts.
The symbol shall not be taken to prejudge the process to be employed.
The elementary symbols are shown in table 1.
If there are no such instructions, the dimensions relating to the preparation of the edges to be welded,
brazed and soldered and/or welding, brazing and
soldering procedures can be ciose to the symbol.
Elementary symbols
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4.1
Symbols
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4
If the joint should not be specified but only be represented that the joint will be welded, brazed or
soldered, the following symbol shall be used:
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The various categories of joints are characterized
by a symbol which, in general, is similar to the
shape of the weld to be made.
Table 1 - Elementz
Designation
symbols
Symbol
fx
Illustration
ww
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Square butt weid
bz
Butt weld between plates with raised edges') ; edge
flanged weld /USA/ (the raised edges being melted
down completely)
Single4 butt weld
V
Single-bevel butt weld
Y
Single-V butt weld with broad root face
--
-
Y
Cingle-bevel butt weld with broad toot face
Y
Cingle-U butt weld (parallel or sloping sides)
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CEN E N W 2 5 5 3 94
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EN 22553 : 1994
Illustration
Designation
No.
Single4 butt weld
9
Backing run; back or backing weld IUSAI
10
Fillet weld
li
Plug weld; plug or slot weld /USAI
12
Spot weld
W
n
O
13
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8
Symbol
Seam weld
14
Steep-flanked cingle-V butt weld
15
Steep-flanked cingle-bevel buti weld
v
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CEN EN*22553 9 4
3 4 0 4 5 8 9 0 0 9 b 8 6 4 093
Page 6
EN 22553 : 1994
Illustration
Surfacing
18
Surface joint
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Inched joint
20
Fold joint
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19
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17
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Edge weld
bz
16
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Designation
No.
welds (symbol2) with the weld thickness s shown (see table5)
Copyright European Committee for Standardization
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Symbol
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CEN ENr22553 9 4 I
I 3404589 0096865 T 2 T
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EN 22553 : 1994
4.2
Combinations of elementary symbols
When required, combinations of elementary symbols
can be used.
The elementary symbols are to be combined for
welding from both sides in such a manner arranging
the applicable elementary symbols symmetrical to
the reference line. Typical examples are given in
NOTE 1 Table2 gives a collection of combinations of
elementary symbols for symmetrical welds. For the symbolic representationthe elementary symbols are arranged
Symmetrically at the r0fWmX? line (See taMeA.2). For the
lise Of
Out of symbolic
the *ymbols may be represented without the reference line.
- Combined symbols for symmetrical welds (examples)
om
Table 2
Designation
table 2 and applications for symbolic representation
in tableA.2.
Illustration
Double-bevelbutt weid
.b
Double-V butt weld with broad root face
zf
xw
.c
Double-V butt weld (X weld)
Symbol
X
K
x
K
ww
w
Double-bevelbutt weld with broad root face
-.
x
Double4 butt weld
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CEN EN*Z2553 9 4 I
3404589 009höhb 966 I
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EN 22553 : 1994
4.3 Supplementary symbols
- Supplementary symbols
Shape of weld surface or weld
I
I a)
Flat (usually finished flush)
I -
---
I
I
symbols are
c)
d) Toes shall be blended smoothly
Examples of combinations of elementary and supplementary symbols are given in tables 4 and A.3.
e)
Permanent backing strip used
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Removable backing strip used
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f)
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1
I
Concave
The absence of a supplementary symbol means that
the shape of the weld surface does not need to be
indicated precisely.
NOTE 2 Although i t is not forbidden to associate several symbols, it is better to represent the weld on a separate sketch when symbolization becomes too difficult.
Symbol
b) Convex
om
Elementary symbols may be completed by a symbol
characterizing the shape of the external surface or
the shape of the weld.
The recommended supplementary
given in table3.
Table 3
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CEN EN822553 94
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3404589 0096867 B T 2
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EN 22553 : 1994
Table4 gives examples of application of the cupplementary symbols.
Table 4
- Examples of application of supplementary
..
- symbols
Illustration
Designation
v
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Flat (flush) single-V butt weld
Convex double-V weld
_
I
Symbol
----_
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w.
Concave fillet weid
fx
Flat (flush) single-\/ butt weld with flat (flush) backing run
bz
Single-V butt weid with broad root face and backing run
-
-
d
w.
Flush finished siiigle-V butt weld
V
ww
Fillet weld with smooth blended face
Copyright European Committee for Standardization
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-.
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1
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CEN ENX(F22553 94
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EN 22553 : 1994
5
5.1
The purpose of the following rules is to define the
location of welds by specifying
Position of the symbols on drawings
General
The symbols covered by these rules form only part
of the complete method of representation (figure 1).
which comprises in addition to the symbol (3) itself:
the position of the reference line;
an arrow line (1) per joint (see figure2 and
figure 3);
The arrow line and the reference line form the complete reference mark. If details are given, e.g. for
processes, acceptance levels. position, filler and
auxiliary materials (see clause 7), a tail shall be
added at the end of the reference line.
om
-
-
- the position of the symbol.
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-
the position of the arrow line;
a dual reference line, consisting of two parallel
lines, one continuous and one dashed (2) (exception, see note 3);
5.2 Relationship between the arrow line and
the Joint
a certain number of dimensions and conventional signs.
.c
-
-
The examples given in figure2 and figure3 explain
the meaning of the terms
NOES
3 The dashed line can be drawn either above or beneath
.(see also
the continuous line
5.5 and annex 6).
- “Arrow side” of the joint;
fx
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--
-
For symmetrical welds, the dashed line i s unnecessary
and should be omitted.
NOTE 5 The position of the arrow in these figures is
chosen for purposes of clarity. Normally, it would be
placed immediately adjacent to the joint.
NOTE 6
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4 The thickness of lines for arrow line, reference lins,
symbol and lettering shall be in accordance with the
thickness of line lor dimensioning in accordance with
I S 0 128 and I S 0 3098-1. respectively.
“Other side” of the joint.
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See figure2.
CEN E N t 2 2 5 5 3 94 .
I3404589 009b8b9 675
=
3
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2a
fx
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Figure 1 - Method of representation
- T joint with one fillet weld
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.b
z
Figure 2
Joint A
Flgure 3
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- Cruciform jolnt with two fillet welds
Not for Resale
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EN 22553 : 1994
CEN ENJ22553 9 4 I
3404589 0096870 39’7 I
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EN 22553 : 1994
5.3
Position of the arrow line
The arrow line
- joins one end of the continuous reference line
such that it forms an angle with it;
-
shall be completed by an arrow head.
5.4
Position of the reference line
The reference line shall preferably be drawn parallel
to the bottom edge of the drawing, or i f impossible
perpendicular.
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m
The position o Lm.earrow line with respect to the
weld is generally of no special significance [see
figures 4a) and 4 b)]. However, in the case of welds
the arrow line shall
of types 4, 6 and 8 (see table l),
point towards the plate which is prepared [see figures 4c) and 4d)l.
bz
fx
w.
H B
ww
w.
a)
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Figure 4
- Position of the arrow line
Not for Resale
b)
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CEN EN+22553 74 I3404589 0 0 9 b 8 ï L 223
5.5 Position of the symbol with regard to the
reference line
The symbol is to be placed either above or beneath
the reference line, in accordance with the following
regulation:
The symbol is placed on the dashed line side if
the weld (weld face) is on the other side of the
joint [see figure 5 b)].
NOTE 7 In the case of spot welds made by projection
welding, the projection surface is to be considered as the
external surface of the weld.
The symbol is placed on the continuous line side
of the reference line if the weld (weld face) is on
the arrow side of the joint [see figure 5 a)].
i
Figure 5
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r-
- Position of the symbol according to the reference fine
Not for Resale
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EN 22553 : 1994
CEN EN*it22553 9 4
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EN 22553 : 1994
6
Other dimensions of less importance may be indicated if necessary.
Dimensioning of welds
6.1
6.2
General rules
Main dimensions to be shown
The dimension that locates the weld in relation to
the edge of the sheet shall not appear in the
symbolization but on the drawing.
Each weld
symbol may be accompanied by a certain
number of dimensions.
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These dimensions are written as follows, in accordance with figure6:
m
6.2.1 The absence of any indication following the
symbol signifies that the weld is to be continuous
over the whole length of the workpiece.
a) the main dimensions relative to the cross-section
are written on the left-hand side of (¡.e. before)
the symbol;
.c
o
6.2.2 In the absence of any indication to the contrary, butt welds are to have complete penetration.
b) longitudinal dimensions are written on the righthand side of (¡.e. after) the symbol.
6.2.3 For the fillet welds there are two methods to
indicate dimensions (see íigure 7). Therefore, the
letters a or z shall always be placed in front of the
value of the corresponding dimension as follows:
ww
w.
bz
fx
w
The method of indicating the main dimensions is
defined in table5. The rules for setting down these
dimensions are also given in this table.
Figure 6
- Examples of the principle
Figure 7
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To indicate deep penetration of fillet welds the throat
thickness is ,r, see figure 8.
6.2.4 In the case of plug or slot welds with bevelled
edges; it is the dimension at the bottom of the hole
which shall be taken into consideration.
- Methods of indlcating dimensions for fillet welds
Not for Resale
CEN EN*<22553 94 81 3404589 0096873 OTb
Page 15
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EN 22553 : 1994
fx
bz
w.
ww
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Copyright European Committee for Standardization
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b,for example.
- Methods of indicatlng dimensions for deep penetration of fillet welds
w.
Figure 8
co
NOTE - For deep penetration of fillet welds, the dimensions are indicated as s8a6
Not for Resale
CEN E N S 2 2 5 5 3 9 4 W 3404589
0096874 T32 W
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EN 22553 : 1994
Table 5
- Main dimensions
Designation of welds
Illustration
w.
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m
Butt weld
Butt weld between plates with
raised edges
ww
--
w.
Continuous fiI let weld
bz
fx
... ._ ._
intermittent fillet weid
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CEN EN*:22553 9 4
3 4 0 4 5 8 9 0096875 979 P
Page 17
EN 22553 : 1994
inscription
Definition
V
(see 6.2.1 and 6.2.2)
minimum distance from the surface of the part to the bottom of the
penetration. which cannot be greater than the thickness of the
thinner part.
S
m
S
2
:
side of the largest isosceles triangle that can be inscribed in the
section.
:
(e) :
n :
Y
(see 6.2.1)
S
II
[see 6.2.1 and footnote i)
to tablei]
a
n
n
z
(see 6.2.1 and 6.2.3)
ww
.-
I
5
fx
height of the largest isosceles triangle that can be inscribed in the
section.
bz
a :
w.
co
(see 6.2.1)
minimum distance from the external surface of the weld to the
bottom of the penetration.
w.
s :
II
length of weld (without end craters).
distance between adjacent weld elements.
number of weld elements.
zn
(see 6.2.3)
(see No. 3)
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CEN E N W 2 5 5 3 94 I3404589 009bô7b 805 M
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EN 22663 : 1994
Table 5
- Maln dimenslons (concluded)
illustration
Designation of weld.
Staggered intermittent fillet
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co
m
weld
bz
ww
Plug weld
w.
Seam weld
fx
Plug or slot weld
--```,-`-`,,`,,`,`,,`---
Spot weld
Copyright European Committee for Standardization
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No reproduction or networking permitted without license from IHS
Not for Resale
~
~
CEN ENx22553 94 S 3404589 0096877 741 0
Page 19
EN 22553 : 1994
Inscription
m
Definition
:
n :
(e) :
d :
n :
width of weld
(see No. 4)
ww
w
I C
.b
z
fx
w
.c
o
(see6.2.3)
spacing
diameter of hole
(see
No. 4)
(e) :
spacing
n :
diameter of spot
--```,-`-`,,`,,`,`,,`---
Copyright European Committee for Standardization
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No reproduction or networking permitted without license from IHS
Not for Resale
(see6.2.4)
L
CEN ENS22553 94 m 3404589 0096878 b 8 8 m
Page 20
EN 22553 : 1994
7 Complementary indlcatlons
fork, at the end of the reference line remote from the
reference line.
Complementary indications may be necessary in
order to specify some other characteristics of welds.
For example:
Figure 11 gives an example of its use.
7.1
The list giving the correspondance between the
numbers and the process is given in I S 0 4063.
Peripheral welds
.c
o
m
When the weld is to be made all around a part, the
symbol is a circle, as shown in fìgure9.
fx
w
Figure 11 - Indication of welding process
Sequence of informafion In the tail of the
reference mark
7.4
L--.--.-.-
7.2
- Indication of peripheral weld
Field or site welds
.b
z
Figure 9
--J
ww
w
A flag is to be used to indicate the field or site weld,
as shown in figure I O .
Figure 10
7.3
The information for joints and the dimensions can
be supplemented by further information in the tail,
in the following order:
process (e.g. in accordance with I S 0 4063);
acceptance level (e.g. in
IS0 5817 and IS0 10042);
accordance
with
working position
IS0 6947);
accordance
with
(e.g.
in
filler materials (e.g. in accordance with IS0 544.
IS0 2560, I S 0 3581).
The individual items are to be separated b)
(solidus}.
In addition, a closed tail is possible which indicates
specific instruction (e.g. procedure sheet) by a reference sign, see figure 12.
- Indication of field or site weld
J
Indication of the welding process
If required, the welding process is to be symbolized
by a number written between the two branches of a
- Reference information
--```,-`-`,,`,,`,`,,`---
Figure 12
Copyright European Committee for Standardization
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CEN EN*E'2553 94 E 3404589 0076879 5 1 4 E
EXAMPLE
Page 21
EN 22553 : 1994
8 Examples for application of spot and
seam joints
Single-V butt weld with backing run (see figure 13),
produced by manual metal-arc welding (reference
number 111 in accordance with IS0 4063), required
acceptance level in accordance with IS0 5817, flat
position PA in accordance with IS0 6947, covered
electrode I S 0 2560-E 51 2 RR 22.
In the case of seam and spot joints (welded, brazed
or soldered), joints are made at the interface between the two lapped parts or by melt-through of
one of the two parts (see figures 14 and 15).
Hlustmtion
m
Symbdc reprnssntation
co
11lllSO 5817-Dl
IS0 a60-E 51 2 RR 22
1
111/1SO 5817 D/
I S 0 258(tE 51 2 RR Z?
bz
fx
w.
Tag view
- Singie-V butt weid with backing run
ww
w.
Figure 13
l-
TOP-
Figure 14
- Intermittent resistance seam welds
--```,-`-`,,`,,`,`,,`---
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CEN EN*22553 94
m
3 4 0 4 5 8 9 0096880 236
m
Page 22
w.
bz
u
-
ww
r
fx
w.
co
m
EN 22563 : 1994
I
7
-
Figure 15
- Spot welds
--```,-`-`,,`,,`,`,,`---
Copyright European Committee for Standardization
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Page 23
EN 22553 : 1994
Annex A
(informative)
Examples of use of symbots
m
Tables A.1 to A.4 give some examples of the use of symbols. The representations shown are given simply for
explanation.
--
Representation
Designation
Symbol
(Numbers refer
to table 1)
co
illustration
w.
bz
fx
--```,-`-`,,`,,`,`,,`---
w.
Butt weld between plaies with
raised edges
ww
Square butt weld
2
Copyright European Committee for Standardization
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CEN ENr22553 9 4 W 3 4 0 4 5 8 9 0096882 O09 W
Page 24
EN 22553 : 1994
Symbolization
either
ww
--```,-`-`,,`,,`,`,,`---
w.
bz
fx
w.
co
m
or
Copyright European Committee for Standardization
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Not for Resale
CEN ENm22553 94 W 3 4 0 4 5 8 9 0 0 ï b 8 8 3 T45
Table A.l
- Examdes of the use of elementary
Page 25
EN 22553 : 1994
mbols (confinuedl
Representation
a-&
Illustration
I
m
No.
Designation
Symbol
(Numbers refer
to table i)
5
.c
o
Single-V butt
weld
-
fx
w
3
.b
z
6
ww
w
7
Single-bevel butt
weld
8
-
9
--```,-`-`,,`,,`,`,,`---
Copyright European Committee for Standardization
Provided by IHS under license with CEN
No reproduction or networking permitted without license from IHS
Not for Resale
CEN ENx22553 9 4 IPI 3404589 0096884 9 ô L
Page 26
EN 22553 : 1994
I
Symbolization
r
or
fx
w.
co
m
either
ww
w.
bz
E]E]
--```,-`-`,,`,,`,`,,`---
Copyright European Committee for Standardization
Provided by IHS under license with CEN
No reproduction or networking permitted without license from IHS
Not for Resale
CEN ENa22553 9 4 I3404589 0096885 818 W
--```,-`-`,,`,,`,`,,`---
- - Examples of the use of elementary s
Table A.l
No.
Designation
Symbol
(Numbers refer
to table 1)
nbols (continued)
Representation
Illustration
I
-
m
Single-bevel butt
weld
10
co
4
w.
Single-V butt
weld with broad
root face
ii
Y
fx
5
12
.-
ww
Y
w.
Single-bevel butt
weid with broad
root face
bz
-
6
13
-
Single-U butt
weld
14
Page 27
EN 22553 : 1994
Y
7
Copyright European Committee for Standardization
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Not for Resale
CEN EN+22553 94
340g589 0 0 î b 8 8 b 754
Page 28
EN 22553 : 1994
I
Symbolization
either
or
ww
w.
bz
fx
w.
co
m
I
--```,-`-`,,`,,`,`,,`---
r
Copyright European Committee for Standardization
Provided by IHS under license with CEN
No reproduction or networking permitted without license from IHS
Not for Resale
CEN E N + 2 2 5 5 3 9 4
a
3 4 0 4 5 8 9 0096887 690
=
Page 29
EN 22663 : 1994
_.
nbols (continued)
Representation
Designation
Symbol
(Numbers refer
to table 1)
Illustration
m
No.
- Examples of the use of elementary s
15
co
Single-J butt
weld
w.
8
bz
fx
16
Fillet weid
CL
18
-
ww
10
w.
17
Copyright European Committee for Standardization
Provided by IHS under license with CEN
No reproduction or networking permitted without license from IHS
Not for Resale
--```,-`-`,,`,,`,`,,`---
Table
-A.l
CEN ENt22553 94 I3404589 0096888 527
€'age 30
EN 22663 : 1994
Symbolization
1
either
--```,-`-`,,`,,`,`,,`---
ww
w.
bz
fx
w.
co
m
or
Copyright European Committee for Standardization
Provided by IHS under license with CEN
No reproduction or networking permitted without license from IHS
Not for Resale
CEN EN*Z2553 94
3404589 0096889 463 E
--```,-`-`,,`,,`,`,,`---
Table A.l
- Examples of the use of elementarv s nbols
- (continued)
Designation
Symbol
(Numbers refer
.to table i)
Page 31
EN 22553 : 1994
Representation
+a-a-&
Illustratlon
w.
co
m
I
Fillet weld
n
ww
w.
bz
fx
18
Copyright European Committee for Standardization
Provided by IHS under license with CEN
No reproduction or networking permitted without license from IHS
Not for Resale
CEN EN*22553 94 H 3404589 009b890 i185
Page 32
=
EN 22553 : 1994
Symbolization
%
or
ww
w
.b
z
Copyright European Committee for Standardization
Provided by IHS under license with CEN
No reproduction or networking permitted without license from IHS
Not for Resale
--```,-`-`,,`,,`,`,,`---
fx
w
.c
o
m
either
EN
:
Table A.1 - Examples of the use of elementary s nbols (continued)
-
1
Representation
Designation
Symbol
(Numbers refer
to table 1)
No.
Illustration
m
-
co
22
Plug weid
-
Page 33
22553 : 1994
n
w.
11
23
bz
fx
--```,-`-`,,`,,`,`,,`---
24
ww
Spot weld
w.
-
O
12
E
25
___-
-
Copyright European Committee for Standardization
Provided by IHS under license with CEN
No reproduction or networking permitted without license from IHS
Not for Resale
Page 34
EN 22553 : 1994
CEN ENs22553 9 4 M 3 4 0 4 5 8 9 0 0 9 b 8 9 2 T58 M
Symbolization
either
ww
w.
bz
fx
w.
co
m
or
--```,-`-`,,`,,`,`,,`---
Copyright European Committee for Standardization
Provided by IHS under license with CEN
No reproduction or networking permitted without license from IHS
Not for Resale
CEN EN*Í22553 94
e
3404589 0096893 994
=
Page 35
EN 22553 : 1994
Table A,l
no.
- Examples of the use d elementary symbols (concluded)
I
ûesignation
Symbol
(Numbers refer
to table i)
Representation
Illustration
I
m
I
co
26
Seam weld
13
ww
w.
bz
fx
27
Copyright European Committee for Standardization
Provided by IHS under license with CEN
No reproduction or networking permitted without license from IHS
Not for Resale
--```,-`-`,,`,,`,`,,`---
w.
-
CEN ENJ22553 94
m
3404589 0096894 8 2 0
m
Page 36
EN 22563 : 1994
I
Symbollzation
1
ww
w
.b
z
fx
w
.c
o
m
or
--```,-`-`,,`,,`,`,,`---
Copyright European Committee for Standardization
Provided by IHS under license with CEN
No reproduction or networking permitted without license from IHS
Not for Resale
m
CEN ENx22553 ï 4
3404589 0 0 ï b ö ï 5 7b7
=
Page 37
EN
Table A.2
22553 : 1994
- Examples of combinations of elementary symbols
Representation
Designation
Synibol
(Numbers refer to
table 1)
€36-
Illustration
I
Butt weld between
m
plates with raised
edges
JL 1
co
and backing run
--```,-`-`,,`,,`,`,,`---
w.
w9
1-9
Square butt weld
fx
II 2
welded from both sides
w.
bz
2-2
Single-V butt weld
ww
v
3
and backing run
w 9
3-9
Double-V butt weld
v
3
(X weld)
3-3
Copyright European Committee for Standardization
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CEN EN*22553 94
Page 38
EN 22553 : 1994
= 3404589
0096896 b T 3
Copyright European Committee for Standardization
Provided by IHS under license with CEN
No reproduction or networking permitted without license from IHS
--```,-`-`,,`,,`,`,,`---
ww
w.
bz
fx
w.
co
m
Symbolization
Not for Resale
CEN EN*K22553 9Y
Table A.2
3404589 0096897 53T E
- Examples of combinations of elementar
Page 39
EN 22553 : 1994
symbols (continued)
Representation
Designation
Symbol
6
co
Double bevel butt ws
v
4
7
Double V butt weM
with broad root fa0
5-5
-
-.
w.
8
bz
fx
w.
(K weld)
Doubla bevel butt wt
9
-
ww
with broad root facc
6-6
Double U butt weld
io
-
Y7
7-7
Copyright European Committee for Standardization
Provided by IHS under license with CEN
No reproduction or networking permitted without license from IHS
Not for Resale
--```,-`-`,,`,,`,`,,`---
Illustration
(Numbers refer to
table 1)
m
Mo.
CEN EN+22553 94 I3404589 0096898 476 I
Page 40
EN 22553 : 1994
I
F-Symbolization
co
w.
fx
bz
w.
ww
Copyright European Committee for Standardization
Provided by IHS under license with CEN
No reproduction or networking permitted without license from IHS
Not for Resale
--```,-`-`,,`,,`,`,,`---
or
m
either
CEN ENx22553 9 4 IU 3404589 0096899 302
Page 4 1
EN 22553 : 1994
- - Exambles of combinations of elementary symbols (concluded) Representation
Tabie A.2
No.
Designation
Symbol
(Numbers refer to
table 1)
a-&
Illustratioir
I
-
om
Double J butt weld
11
w.
c
8-8
Single V butt weld
12
and single U butt weld
bz
Y7
3-7
14
ww
-
Fillet weld
w.
-
13
fx
v
3
and fillet weld
10-10
--```,-`-`,,`,,`,`,,`---
Copyright European Committee for Standardization
Provided by IHS under license with CEN
No reproduction or networking permitted without license from IHS
Not for Resale
----1
CEN EN*F22553 94 I3404587 0096900 9511 M
Page 42
EN 22663 : 1994
7Symbolization
either
or
bz
fx
w
.c
om
--```,-`-`,,`,,`,`,,`---
I-.--
ww
w.
_
I-.-.
L
17
Copyright European Committee for Standardization
Provided by IHS under license with CEN
No reproduction or networking permitted without license from IHS
\A-
Not for Resale
Page 43
EN 22553 : 1994
Table A.3
- Examples of combinations of elemental
and supplementary symbols ~
~
Representation
Illustration
ww
w.
bz
--```,-`-`,,`,,`,`,,`---
fx
w
.c
o
m
Symbol
Copyright European Committee for Standardization
Provided by IHS under license with CEN
No reproduction or networking permitted without license from IHS
Not for Resale
_ _
CEN ENx22553 9 4
3404589 009b902 727
Page 44
EN 22553 : 1994
Symbolltatlon
or
ww
w.
bz
L e +
fx
w.
--```,-`-`,,`,,`,`,,`---
co
m
either
Copyright European Committee for Standardization
Provided by IHS under license with CEN
No reproduction or networking permitted without license from IHS
Not for Resale
CEN EN*22553 9 4 W 3404589 0096903 6 6 3 W
Page 45
EN 22553 : 1994
Table A.3 - Examdes of combinations of elementary and supplementary symbols (concluded)
Representation
Symbol
6
x
Illustration
m
No.
co
W
w.
-
bz
fx
7
Copyright European Committee for Standardization
Provided by IHS under license with CEN
No reproduction or networking permitted without license from IHS
--```,-`-`,,`,,`,`,,`---
ww
IHRJ
w.
V
Not for Resale
CEN E N W 2 5 5 3 74 I3404587 0096704 5 T T I
Page 46
EN 22553 : 1994
Symbolization
I
--
e¡t her
Copyright European Committee for Standardization
Provided by IHS under license with CEN
No reproduction or networking permitted without license from IHS
--```,-`-`,,`,,`,`,,`---
ww
w.
bz
fx
w.
co
m
or
Not for Resale
CEN ENx22553 94
3404589 0096905 43b
Page 47
EN 22553 : 1994
No.
Table A.4
*-
- Examples of exceptional cases
Representation
illustration
m
-
a-&
.c
o
1
-
ww
w.
bz
3
fx
w
2
--```,-`-`,,`,,`,`,,`---
Copyright European Committee for Standardization
Provided by IHS under license with CEN
No reproduction or networking permitted without license from IHS
Not for Resale
I
CEN E N r 2 2 5 5 3 9 4
3404589 009b90b 372
=
Page 48
EN 22663 : 1994
Symbolization
ww
w.
bz
fx
--```,-`-`,,`,,`,`,,`---
w.
co
m
incorrect
not recommended
Copyright European Committee for Standardization
Provided by IHS under license with CEN
No reproduction or networking permitted without license from IHS
Not for Resale
~~
~
CEN ENa22553 7 4 IBI 3404589 007b707 209
=
Page 49
EN 22553 : 1994
- - Examples of exceptional cases (concluded)
Table A.4
No.
Representation
a-&-
Illustration
I
m
-
w.
co
6
bz
fx
7
w.
8
ww
--```,-`-`,,`,,`,`,,`---
Copyright European Committee for Standardization
Provided by IHS under license with CEN
No reproduction or networking permitted without license from IHS
-
-
NOT€ 1 When the arrow cannot point to a joint, symbolization cannot be used.
Not for Resale
-
Page M)
EN 22663 : 1994
Symbolization
-
co
m
incorrect
w.
not recommended
bz
fx
not recommended
ww
w.
pl
Copyright European Committee for Standardization
Provided by IHS under license with CEN
No reproduction or networking permitted without license from IHS
Not for Resale
--```,-`-`,,`,,`,`,,`---
or
either
~~
~
~
3404589 0096909 O B 1 H
CEN ENm22553 94
Page 51
EN 22553 : 1994
Annex B
(i nformative)
Guidance for converting drawings made in accordance with I S 0 25531974 into the
new system in accordance with I S 0 2553:1991
___________.
shall always be used.
- Weld on arrow side
w.
bz
fx
Figure B.l
w.
co
For new drawings, the dual-reference line
m
As an interim solution for converting old drawings made in accordance with IS0 2553:1974, Welds - Symbolic
representation on drawings, the following examples show acceptable methods. This chal!, however, be considered as a provisional solution only during the change-over period.
Figure 8 . 2
- Weld on other side
ww
I
NOTE 8 When converting drawings made to one of the methods E or A in IS0 2553:1974 into this new system, it is es
pecially important íor fillet welds to add the letter o or z in front of that dimension as the use of dimensioning leg length
(2)or throat thickness ( a ) has been connected with the position of weld symbol on the reference line.
--```,-`-`,,`,,`,`,,`---
Copyright European Committee for Standardization
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No reproduction or networking permitted without license from IHS
Not for Resale
CEN E N s 2 2 5 5 3 9 4 H 3404589 00’4bqLO B T 3
Page 52
EN 22553: 1994
=
Annex ZA (normative)
Normative references to international publications with their relevant European
publications
m
This European Standard incorporates by dated or undated reference, provisions from other publications.
These normative references are cited at the appropriate places in the text and the publications are listed
hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply
to this European Standard only when incorporated in it by amendment or revision. For undated
references the latest edition of the publication referred to applies (including amendments).
Publication
Year
IS0 544
Filler materials of manual welding Size requirements
1990 Welding, brazing, s o l M n g , and braze
welding of metals - Nomenclature of
processes and reference numbers f o r symbolic
representation on drawings
1992 Arc-welded joints in steel - Guidance on
quality levelsfor imperfections
1989 Projections for resistance welding
1992 Arc-welded joints in aluminium and its
weldable alloys - Guidance on quality levels
for imperfections
Title
Year
EN 20544
1991
IS0 4063
IS0 5817
ww
w.
bz
fx
IS0 8167
IS0 10042
w.
co
1989
EN/HD
--```,-`-`,,`,,`,`,,`---
Copyright European Committee for Standardization
Provided by IHS under license with CEN
No reproduction or networking permitted without license from IHS
Not for Resale
EN 24063
1991
EN 25817
1992
EN 28167
EN 30042
1992
1994
C E N E N x 2 2 5 5 3 94
3404589 00969LL 73T
BS EN
22553: 1995
IS0 2553 : 1992
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Standards. It presents the UK view on standards in Europe and at the
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om
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Any person who finds an inaccuracy or ambiguity while using this British
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delay so that the matter may be investigated swiftly.
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BSI offers members an individual updating service called PLUS which ensures
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~~
ISBN O 580 24141 6
Product code 00496446
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WEE11
--```,-`-`,,`,,`,`,,`---
bz
Information on standards