Document Ref.:
ABU DHABI MARINE OPERATING COMPANY
SP-1000
Control Sheet
ADMA-OPCO STANDARD ENGINEERING DOCUMENTS
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COPYRIGHT © ABU DHABI MARINE OPERATING COMPANY - ADMA-OPCO
All rights reserved. The information contained in this document is regarded as confidential. Recipient(s) other than ADMA-OPCO's
employees undertake both during the continuance of their services to ADMA-OPCO and after termination to maintain in safe custody
and not to use any such information for any purpose other than a purpose falling within the scope of the Agreement or Contract under
which this document was supplied. Recipient(s) further agree not to dispose of, make copies, in whole or in part of such information
or permit the use or access of the same by any Third Party unless the prior written permission of ADMA-OPCO Manager Operations
Integrity is obtained.
D
O
C
U
M
E
N
T
SP-1000
DESIGNATION
SPECIFICATION
FOR
TITLE
MATERIAL
FOR
SOUR SERVICES
BY
NAME
TITLE
B.Unit/Div. Signature
DATE
ACTION
Wael El-Shouly
ME
K.T.A.Al-Rahman
SE
Prod./OID
Prod./OID
M.Khalid Elshobary
SSL
Prod./OID
M.Khalid Elshobary
SSL
Prod./OID
Ali Al-Bateeh
OSTL
David F. Craddock
TFITL
Prod./OID
Prod./OID
APROVAL
Saeed M. Alawai
MOI
Prod./OID
ENDORSEMENT
A.R.Al-Jarwan
AGM(P)
Production
REVISION
REVIEW
CONTROL STAMP
The soft copy of this document on
ADMA-OPCO Web is
2
1
03-03
General Revision
Controlled.
10-92
General Revision
When printed, it is considered
0
03-89
Issued for Implementation
Uncontrolled
REV.
DATE
DESCRIPTION/TEXT AFFECTED
Standard Form ADMA-OPCO/SEF/007
Rev. 0 Sheet 1 of 1
TABLE OF CONTENTS
1. INTRODUCTION ...........................................................................................................4
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
BACKGROUND .......................................................................................................4
OBJECTIVE ...........................................................................................................4
SCOPE ..................................................................................................................4
EXCLUSION ...........................................................................................................5
REFERENCED S TANDARDS. .....................................................................................5
ABBREVIATIONS ....................................................................................................5
DEFINITIONS .........................................................................................................5
USE OF LANGUAGE................................................................................................6
2. QUALITY ASSURANCE.................................................................................................6
2.1
2.2
QUALITY ASSURANCE SYSTEM................................................................................6
THIRD PARTY I NSPECTION & CERTIFICATION REQUIREMENTS ..................................6
3. SERVICE CONDITIONS ................................................................................................7
3.1
3.2
SOUR SERVICE ......................................................................................................7
ASSOCIATED SERVICE CONDITIONS .........................................................................7
4. MATERIALS..................................................................................................................8
4.1
4.2
4.3
4.4
4.5
4.6
4.7
4.8
4.9
4.10
4.11
4.12
4.13
4.14
4.15
4.16
4.17
2
GENERAL ..............................................................................................................8
CARBON, CARBON MANGANESE AND LOW ALLOY STEEL PRESSURE VESSEL ............10
CARBON, CARBON MANGANESE AND LOW-ALLOY STEEL HEAT EXCHANGER TUBE
BUNDLES ...........................................................................................................11
CARBON AND CARBON MANGANESE S TEEL PROCESS PIPEWORK .............................11
STEEL PIPES FOR MAJOR PIPELINE CONSTRUCTION ...............................................12
STAINLESS STEEL PIPEWORK................................................................................12
PIPE FLANGES AND FITTINGS (FORGED OR FABRICATED IN CARBON STEEL) .............13
DOWNHOLE TUBULARS, WELLHEADS, CHRISTMAS TREES AND COMPLETION
EQUIPMENT .......................................................................................................14
VALVES ..............................................................................................................14
ROTATING MACHINERY .......................................................................................16
INSTRUMENTATION..............................................................................................18
INTERNAL /EXTERNAL BOLTING ...........................................................................19
BELLOWS ...........................................................................................................20
METALLIC OVERLAYS .........................................................................................20
METALLIC COATINGS (EXTERNAL & INTERNAL)....................................................20
NON-METALLIC MATERIALS FOR SOUR SERVICE ....................................................21
STORAGE TANKS .................................................................................................21
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5. WELDING AND FABRICATION..................................................................................21
5.1
5.2
5.3
5.4
APPROVAL OF HEAT-TREATMENT PROCEDURE ......................................................21
SMALL BORE CARBON STEEL PIPEWORK OR LESS THAN DN75 MM (3 INCH) NPS......22
POSSIBLE AVOIDANCE OF POST-WELD HEAT TREATMENT ......................................22
WELDING PROCEDURE Q UALIFICATION TESTS .......................................................22
6. IDENTIFICATION STAMPING AND MARKING ........................................................24
6.1
6.2
HARD STAMPS .....................................................................................................24
MARKING ...........................................................................................................24
7. INSPECTION ...............................................................................................................24
8. PACKING, PROTECTION AND PRESERVATION......................................................25
APPENDIX-A: PREVENTION OF STRESS CORROSION CRACKING IN SOUR SERVICE
WITH CHLORIDES -REQUIREMENTS FOR AUSTENITIC STAINLESS STEELS.... 26
APPENDIX-B: PREVENTION OF STRESS CORROSION CRACKING IN SOUR SERVICE
WITH CAUSTIC OR OTHER ALKALINE PROCESS FLUIDS......................................... 28
APPENDIX-C:SPECIFICATION FOR STEEL PLATE (Z QUALITY) .................................30
APPENDIX-D: HIC (HYDROGEN INDUCED CRACKING ) TEST REQUIREMENTS OF
CARBON STEEL PLATE, PIPE, FORGINGS, AND FITTINGS ...................................34
APPENDIX-E:REFERENCED DOCUMENTS.....................................................................35
APPENDIX-F: ABBREVIATIONS .......................................................................................37
APPENDIX-G: DEFINITIONS ............................................................................................38
APPENDIX-H: Origination, Review, Approval & Endorsement Authorities History Of SP-1000
.....................................................................................................................39
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1.
INTRODUCTION
1.1
Background
This Revision (Rev.2) for Specification SP-1000 found necessary to incorporate and
highlight the main issues listed below:
1.2
a.
The technical requirements made by the latest edition of the main references Such
as NACE MR0175.
b.
Experiences, lessons learnt and users feedback on SP-1000 since its issue for
implementation as Rev.1 on October 1992.
c.
The latest ADMA-OPCO requirement regarding key issues such as QA/QC and
document control requirements.
Objective
This Specification states ADMA-OPCO general requirements for materials, which are
used to construct plant, equipment and piping systems for offshore & onshore facilities
that handling and/or exposed to sour H2S and/or chlorine media.
1.3
Scope
This Specification modifies and extends, where necessary, the requirements of the
NACE Standard MR0175. This Specification provides additional guidance for the
application of materials on sour service in the presence of hydrogen, chlorides, alkalis
and amines.
All materials shall meet the requirements of NACE Standard MR0175 except as
amplified and modified herein.
N.B
The NACE Standard defines sour service and recommends materials, which are
resistant to sulphide stress cracking (SSC) in sour environments. However, it does not
cover certain sour duties nor associated failure mechanisms in sour service such as HIC
(Hydrogen Induced Cracking), SOHIC (Stress Oriented Hydrogen Induced Cracking),
and SCC (Stress Corrosion Cracking).
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1.4
Exclusion
Due to procurement constrains, some requirements of this Specification may be
impractical for small orders/quantities of carbon steel line pipe, fittings and flanges.
Therefore, waiving these requirements may be considered subject to the outcome of a
formal Risk Assessment by the job officer, taking into account operational criticality of
such components and risks associated with their design intent/service. Furthermore, the
final decision with regard to such waiver shall be approved by the concerned Asset /
Divisional Manager.
1.5
Referenced Standards.
1.5.1 General
Unless otherwise specifically indicated in writing by ADMA-OPCO, the Manufacturer
shall work in accordance with the requirements specified herein and the latest editions of
the referenced Standard Engineering Documents listed in Appendix E in this
Specification.
The requirements of this Specification shall take precedence over these referenced
Documents. Where this Specification states no overriding requirements, the referenced
Documents shall apply in full.
1.5.2 Equivalent Standards
Standard Documents equivalent to those referred to herein shall not be substituted
without written approval from ADMA-OPCO. Approval of equivalent Standard
Documents will not, in any way, remove responsibility from the Manufacturer to meet
the best practices and/or requirements of the Standard Engineering Documents referred
to herein, in the event of conflict.
The Manufacturer shall equip himself with copies of all the referenced Standard
Engineering Documents referred in Appendix E of this Specification and shall make
them readily available to all ADMA-OPCO, or nominated representative, personnel
involved in the work.
1.6
Abbreviations
The abbreviations used in this Specification are listed in Appendix F.
1.7
Definitions
The definitions used in this Specification are listed in Appendix G.
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1.8
Use Of Language.
Throughout this Specification, the words ‘will’, ‘may’, ‘should’ and ‘shall’, when used
in the context of actions by ADMA-OPCO or others, have specific meanings as follows:
a.
b.
c.
d.
2.
‘Will’ is used normally in connection with an action by ADMA-OPCO and / or
nominated representative, rather than by a Contractor or Vendor.
‘May’ is used where alternatives are equally acceptable.
‘Should’ is used where provision is preferred.
‘Shall / Must’ is used where a provision is mandatory / vital.
QUALITY ASSURANCE
2.1
Quality Assurance System
a.
The material shall only be supplied by manufacturers approved by ADMA-OPCO.
b.
The Manufacturer shall operate a Quality management System (QMS) within his
organization, which ensures that the requirements of this Specification are fully
achieved.
c.
The Manufacturer's quality management system shall be based on the latest ISO
9000 Series (or an equivalent) and shall be described in a quality manual. The
manual shall provide details for the preparation of a quality plan, which shall
include provisions for the QA/QC of all raw materials, process/fabrication, testing
and final inspection. Where an approved Manufacturer has made changes to their
quality system/manual, these shall be submitted to ADMA-OPCO for approval.
d.
The effectiveness of this quality system may be subject to monitoring by the
Company or its representative and, may be audited following an agreed period of
notice.
e.
The manufacturer shall maintain sufficient Quality Control and Quality Assurance
staff, independent of his production management, to ensure that the Quality plan
is correctly implemented and that all related documentation is available.
e.
Using of sub-contractors is not allowed for any of the common manufacturing
functions carried out in the production of the equipment by the Manufacturer.
2.2 Third Party Inspection & certification Requirements
The third party inspection & certification requirements shall be as stated in the ADMAOPCO Code of Practice CP - 102.
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3.
SERVICE CONDITIONS
3.1
Sour Service
3.1.1 The definitions for sour services by NACE Standard MR0175 are accepted by ADMAOPCO for systems with less than 10 mol% H2S.
All systems with 10 mol % or more of H2S are regarded as sour in this Specification
irrespective of the operating pressure and temperature.
N.B
Where the NACE Standard refers to total pressure, this shall be taken to mean total
design pressure in the context of this Specification.
3.1.2 The oil, gas, condensate, and multi-phase flow, which contain H 2S, shall be considered
as sour fluid when the following criteria’s are existing:
3.2
a.
The wet gas (water as liquid), gas condensate, and crude oil flow have H 2S at a
partial pressure equal to or exceed 0.05 psia.
b.
The total pressure for gas are equal to or exceed 65 psia.
c.
The total pressure for crude oil and multi-phase flow are equal to or exceed
265 psi, the GOR (Gas Oil Ratio) is more than 5000 SCF/bbl and the H2S
partial pressure is equal to or exceed 0.05 psia.
Associated Service Conditions
This Specification states as listed below, certain additional requirements that apply for
sour service in the presence of hydrogen, chlorides, alkalis and amines. The following
may occur in synergy with sulphide stress cracking (SSC) and the following additional
precautions shall be considered:
3.2.1 Hydrogen Induced Cracking (HIC), Stress Oriented Hydrogen Induced Cracking
(SOHIC), and Hydrogen Embrittlement
Where the presence of hydrogen resulting from sour service could lead, not only to
SSC, but also hydrogen blistering or 'step' cracking. Consideration shall be given to
employing special "Z" quality grades of steel materials (plates, pipes, fitting, … etc)
and these shall be tested and conformed to the requirements of the Appendix D of this
Specification.
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3.2.2 Chloride Stress Corrosion Cracking:
This, specific to stainless steels and certain non-ferrous corrosion resistant alloys.
Where chlorides are present in sour service, but where the chloride level and pH etc.
permit the use of austenitic stainless steels, Appendix A of this Specification shall
apply.
3.2.3 Caustic Cracking or Stress-Corrosion Cracking (SCC)
This, specific to carbon steels. For sour service in association with alkalis or amines,
the requirements of Appendix B shall be applied as appropriate.
4.
MATERIALS
All materials for sour service as defined in this Specification shall comply fully with the list of
Metals (ferrous and non-ferrous) in the NACE Standard MR0175, except as modified below
and those specified for non-metallic material:
4.1
General
4.1.1 Materials shall be selected from those permitted in the NACE Standard MR0175.
4.1.2 The selection of materials for a particular sour duty shall take into account not only any
requirements arising from subsection 3.2 of this Specification, but also resistance to
general corrosion.
4.1.3 The pH value of the process stream and the presence or absence of corrodents such as
Oxygen, carbon dioxide, chlorides etc. are of particular importance.
Similarly, the selection shall take into account the effects of galvanic corrosion e.g.
coupling of dissimilar metals, When dissimilar metals are connected, the cathode to
anode area ratio must be minimized.
4.1.4 The selection of Corrosion – Resistant Alloy (CRA), over carbon steel for any service
or process shall be justified by establishing the corrosion rates over the life of the
component, and shall be subject to ADMA-OPCO approval.
4.1.5 Where the process duty is such that a wet gas environment exists in one part of the
vessel and multiphase (oil, gas, water) system exists in another part of the same vessel,
the material of construction for the entire vessel shall be suitable for the more severe
sour gas conditions.
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4.1.6 High strength steels at high levels of stress such as internal bolting, springs, bellows
and parts of some rotating machinery require specific attention. Such items are
susceptible to SSC in lower concentrations of wet hydrogen sulphide than indicated
by the NACE Standard definition. These items/parts shall therefore comply with the
NACE Standard when in contact with any concentration of wet hydrogen sulphide.
4.1.7 The use of wrought or castings duplex and Martensitic stainless steel, for any
component or equipment shall be subject to approval by ADMA-OPCO.
4.1.8 Where hydrogen blistering or step cracking may occur, steel grades with additional
chemical composition limits and guaranteed through thickness mechanical properties
such as "Z30" quality steel grades to the requirements of Appendix C of this
specification shall be considered.
Inhibiting the process stream or applying a protective lining to the steel surface can
also be considered.
.
4.1.9 Cast irons and ferritic ductile (nodular) iron are unacceptable for pressure-retaining
parts. The use of these materials for non-pressure low stressed components shall be
subject to approval by ADMA-OPCO.
Austenitic irons are also unacceptable for pressure-retaining parts except as permitted
by clause 4.10.2 (b). None of these materials shall be weld repaired.
4.1.10 In addition to the limitations given in NACE Standard for the use of austenitic stainless
steels (300 series), this Specification prohibits the use of such stainless steels for
pressure containment due to the risk of stress-corrosion cracking (see Appendix A).
This is relevant to the temperature level and chloride concentration falling within the
stress-corrosion cracking region shown there in.
4.1.11 When the chloride concentration and temperature do not permit the use of austenitic
stainless steels, alloys with higher nickel content and molybdenum shall be selected
such as Inconel 625, Incoloy 825, Inco alloy C-276.
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4.1.12 Carbon Steel Castings for valve parts, flanges, or other pressure containing parts for
sour service shall be:
4.2
a.
Suitably heat treated after welding operations have been performed. This
requirement also applies to the weld repair of defects, irrespective of size.
b.
All castings shall be PWHT to reduce the residual stresses and to reduce the
hardness levels below 22HRC. The method of heat treatment and the TimeTemperature thermal cycle shall be given on the mill certificate,
c.
For butt-welding castings, the carbon equivalent shall not exceed 0.43
Carbon, Carbon Manganese and Low Alloy Steel Pressure Vessel
4.2.1 Unless otherwise approved by AMDA-OPCO, pressure vessels, including heat
exchanger shells, channels and floating heads, shall be stress relieved. Where hydrogen
sulphide H2S contents in excess of 10 mol. % are encountered, stress relief is
mandatory in all cases.
4.2.2 Stress-relieving and Post-weld heat-treatment procedures shall be as required by the
appropriate design code e.g. ASME VIII and ADMA-OPCO Specification SP-1035.
4.2.3 For Shells, heads plate, structural supports & internal elements material used shall be
HIC tested as per Appendix D. Alternatively, the plate material with ultra low sulphur =
0.003 and low phosphorous content = 0.015 contents with special metallurgy e.g.
Vacuum degassed, fully killed, fine grain size, inclusion shape controlled with proven
through thickness property, minimum (Z 30) tested as per Appendix C shall be used.
Plates with thickness below 20mm shall not be tested for through thickness properties
and hence shall be HIC tested in accordance with Appendix D of this Specification.
N.B.
structural supports & internal elements shall be fabricated from plates.
4.2.4 Pressure vessels on sour service in materials other than carbon, carbon manganese and
low-alloy steels e.g. austenitic stainless steels, clad plate, …. etc shall be subject to a
special ADMA-OPCO Specification and/or approval.
4.2.5 Design and fabrication of pressure vessel i.e. Welds, nozzles, and control of hardness
levels shall be as given in the relevant governing code& Section 5 of this Specification
4.2.6 All associated pipework/piping, flanges, fittings, bolts, and instruments materials shall
comply with this Specification.
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.
4.3
Carbon, Carbon Manganese and Low-Alloy Steel Heat Exchanger Tube Bundles
4.3.1 Tubes material shall be in accordance with governing codes and NACE standard
MR0175 requirements.
4.3.2 Tube bundles made from materials other than carbon, carbon manganese and low-alloy
steels shall be subject to a special ADMA-OPCO specifications and/or approval.
4.3.3 Where tube end welding is specified, special fabrication procedure is necessary as
follows:
a.
In order to avoid high hardness in the weld and heat affected zones, either PWHT
shall be applied or the tube sheet shall be faced with low carbon weld metal and
stress relieved prior to tube end welding.
b.
Irrespective of the fabrication technique adopted, the welding procedure
qualification tests shall be in accordance with section 5 of this Specification and
to TEMA, API, ASME Section VIII DIV 1, EEMUA-143 Standards, and any
other additional requirements recommended by ADMA-OPCO depending on
the job project concerned.
4.3.4 All associated pressure vessel, pipework/piping, flanges, fittings, bolts, and instruments
materials shall comply with this Specification.
4.4
Carbon and Carbon Manganese Steel Process Pipework
4.4.1 Carbon steel pipework shall conform to ASME B31.3 ASME B31.4 & ASME B31.8,
and shall be manufactured by the seamless route to relevant material Specification API
5L Gr. B, ASTM A106, ASTM A333 unless otherwise approved by ADMA-OPCO.
4.4.2 Where the use of welded pipe is necessary, due to the large diameter involved, these
large seam welded pipes shall meet the requirements of SP-1011 Part 1.
4.4.3 Electric Resistance Welded (ERW) pipes are not acceptable.
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4.4.4 Unless approved otherwise by ADMA-OPCO, welds in carbon steel pipework for
fabrication shall be made to a procedure which will ensure that the requirements of the
NACE Standard MR0175 are met without the necessity for PWHT, as outlined in
section 5 of this Specification.
The material shall have a carbon content of 0.23% maximum and the CE by check
analysis shall not exceed 0.42% based on the formula:
CE = C + Mn + Cr+Mo+V + Ni+Cu
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15
In some cases however, PWHT may be the preferred method for achieving the required
properties.
4.4.5 Unless approved otherwise by ADMA -OPCO all pipework exceeding 19 mm (0.750
in) wall thickness for sour duties, irrespective of location, shall receive a
PWHT.
4.4.6 The following Certificates shall be submitted for approval by ADMA-OPCO:
4.5
a.
.The material manufacturer's test certificates.
b.
PWHT charts where applicable
c.
Welding procedure qualification test results incorporating hardness survey results
on etched macro sections. The hardness surveys shall follow the procedure
outlined in clause 5.4.4 and 5.4.5 of this Specification.
Steel Pipes for Major Pipeline Construction
Pipeline materials shall conform to ADMA-OPCO Specification SP-1011 parts 1,2 &3.
4.6
Stainless Steel Pipework
In addition to the austenitic stainless steel material requirements of the NACE standard
MR0175 the following additional requirements shall be applicable:
4.6.1 Irrespective of pipe size and wall thickness, welds in such materials shall be subjected
to PWHT except for the following categories:
2
a.
Stainless steel pipework subject to external environment containing chlorides. For
this pipework, it shall be protected in accordance with ADMA-OPCO SP-1020
PSN 530.
b.
Stainless steel pipework containing free water with Co2 of partial pressure up to
29.5 psia and H2S of partial pressure less than 0.05 psia.
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4.6.2 All PWHT requirements of stainless steel pipework shall be subject to ADMA-OPCO
approval.
4.6.3 Following the completion of the PWHT, the external surface of stainless steel piping
joints shall be painted/repainted in accordance with ADMA-OPCO
Painting
specification SP -1020 PSN 530.
4.7
Pipe Flanges and Fittings (Forged or Fabricated in Carbon Steel)
Flanges shall comply with the requirement of ADMA-OPCO STD-108 Rev.1.Flanges
and fittings material, shall comply with the appropriate design codes
requirements and applicable material specifications as well as the following mandatory
requirements:
4.7.1 Process of Manufacture:
a.
Irrespective of the requirements of the relevant design code all flanges and
seamless fittings shall be fabricated from fully killed carbon steel material, and
shall be supplied in the fully normalized or alternatively quenched and tempered
condition.
b.
Fabricated carbon steel flanges and fittings shall be manufactured from plate
meeting the "Z30" grade in accordance with Appendix C or HIC tested material
in accordance with Appendix D of this Specification.
Post weld heat treatment in the stress relieving range of temperature i.e.
580°C - 620°C for 1 hr. per 25 mm of thickness shall be carried out.
c.
Fabricated flanges and fittings shall be welded by the manual metal arc process or
the submerged arc process and in accordance with section 5 of this Specification.
d.
A detailed welding procedure including electrical parameters, electrode type, wire
and flux chemical composition shall be submitted to ADMA-OPCO for approval.
4.7.2 Chemical Composition
a.
All materials shall conform to a maximum carbon content of 0.25% and a
maximum sulphur content of 0.025% by check analysis. Maximum carbon
equivalent shall be 0.42 calculated by the short formula.
CE = C + Mn + Cr+Mo+V + Ni+Cu
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b.
The manufacturer shall provide a mill certificate showing the composition of each
heat of steel supplied.
4.7.3 Hardness
The hardness of pipe flanges and fittings shall not exceed the following limits:
4.8
a.
The specified hardness limit in the respective
ASTM A105: 187 HB, ASTMA234: 197HB.
material
specification e.g.
b.
The maximum allowed hardness in the NACE Standard MR0175 248 HV10. For
welded fittings, hardness shall be measured in the Parent metal, heat-affected
zone, weld metal on both inner and outer surfaces at 1.5 mm maximum below the
surfaces.
Downhole Tubulars, Wellheads, Christmas Trees and Completion Equipment
In addition to the material requirements of the NACE Standard MR0175, the materials
requirements of these items are specified in the latest edition relevant ADMA-OPCO
Standards STD-122, STD-123, STD-124 and STD-125 respectively.
4.9
Valves
In addition to the material requirements of the NACE Standard MR0175, the following
additional material requirements shall be applicable.
4.9.1 The use of ENP (Electroless Nickel Plating) for valve balls and stem is not acceptable
for any material for sour service.
4.9.2 The use HVOF (High Velocity Oxy-Fuel) Thermal sprays for corrosion protection shall
be subject to ADMA-OPCO approval.
4.9.3 The construction materials of the valve shall be presented with heat treatment
condition and hardness levels in the latest VOSS (Valve Ordering Specification Sheet)
format for ADMA-OPCO approval.
4.9.4 For assembling carbon steel valves bodies/bonnets, PTFE coated bolts are not
acceptable. Bolts shall be hot-dip and spun galvanized in accordance with ADMAOPCO specification SP1015 Rev.1.
4.9.5 Valves for sour service shall be ordered from fully approved manufacturers, i.e. have
undergone the prequalification / approval procedure currently
applicable in
ADMA-OPCO.
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4.9.6 Valve types involving full welded body construction are not acceptable unless
otherwise approved by ADMA-OPCO for special applications (i.e. sub-sea).
4.9.7 Carbon content of socket welding or butt-welding carbon steel bodies shall be limited
to 0.25% max. Carbon equivalent (CE) by check analysis shall not exceed 0.42%
based on the following formula:
CE = C + Mn + Cr+Mo+V + Ni+Cu
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4.9.8 All valve parts which can be contacted by the sour environment shall conform to this
Specification and this requirement extends to all internals as well as the pressurecontaining components.
Highly stressed items which are not freely vented to atmosphere as in the case of
insulated and buried valves, and bolts inside flange protectors etc., where leakage of the
process stream could subject the items to a sour environment, shall conform fully to
this Specification.
4.9.9 Where plated components are employed, the material on which theplating is deposited
shall conform with this Specification. The plating employed shall be resistant to the
environment. Cadmium and zinc plating are unsuitable as these metals corrode readily
when in contact with hydrogen sulphide.
4.9.10 Where a cast ball is employed, weld repair of the ball is not acceptable.
4.9.11 All valve springs shall be made from nickel base materials resistant to SSC.
Acceptable spring materials are Inconel X750, Nimonic 90 and Monel K500.
4.9.12 In bellows-sealed relief valves, the springs shall be in accordance with clause 4.9.8
above. The bellows shall also comply with subsections 4.13 and clause 4.1.6 of this
Specification.
4.9.13 Internal bolting in valves shall be in accordance with clause 4.1.6 and subsection 4.12
of this Specification.
4.9.14 The packing selected shall be compatible with stem material. Uninhibited graphite or
carbon-type packing is unacceptable particularly when in contact with stainless steel.
4.9.15 Carbon Steel Castings for valve parts, or other pressure containing parts for sour
service shall also be in accordance wth subsection 4.1.12 of this Specification.
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4.10
Rotating Machinery
4.10.1 General
a.
Except as stated in clause. 4.10.1(c), sour service for rotating machinery shall be
taken as defined in subsection 3.1 of this specification.
b.
The materials selection and fabrication procedures employed shall comply with
this specification as appropriate.
c. Carbon and carbon manganese steel plate for fabricated compressor casing shall be
"Z30" quality in accordance with Appendix C or HIC tested in accordance with
Appendix D of this Specification.
d.
All fabrication welds and repair welds shall be heat treated as listed below unless
otherwise specified by ADMA-OPCO.
MATERIAL
HEAT TREATMENT
REQUIREMENT
d.l. Carbon and
Carbon
Manganese Steels
PWHT at 580/620° C
(1076/1148°F)
d.2. Low alloy steels
PWHT shall be in accordance with
the appropriate design code
d.3. Martensitic
Stainless Steels
(11-13% Chromium
Steel)
.
d.4. Austenitic
Stainless Steel
(i)
Re- heat completely including
double temper. For certain welds
complete heat treatment is not
possible and double tempering
treatment only will be acceptable
Requires PWHT at 950°C (1740°F) in
accordance with SP-1035
NOTE
(i)
(i)
Irrespective of equipment components wall thickness, welds in such materials
shall be subjected to PWHT except for the followings:
a. Stainless steel components subject to external environment containing
chlorides. For such components shall be protected in accordance with
ADMA-OPCO SP-1020 PSN 530.
b. Stainless steel components containing free water with Co2 of partial pressure
up to 29.5 psia and H2S of partial pressure less than 0.05 psia.
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e.
All components such as internal bolting, springs, etc. shall appropriately comply
with the relevant parts of this Specification.
f.
Shafts and piston rods in plain carbon, low and medium alloy and 11-13%
chromium steel shall be heat treated to minimize residual stresses, and shall have
a hardness not exceeding 248 HV10 Kg (HRC22) and yield stress not exceeding
620 N/mm2 (90, 000 lbf/in2)
g.
Shafts in austenitic stainless steel shall be in the annealed solution condition.
Where 17Cr-4Ni precipitation hardening steel is employed, it shall conform to the
NACE Standard MR0175. K Monel and Inconel X-750 shafts shall also be in
accordance with the NACE Standard MR0175.
h.
The straightening of shafts after completion of machining shall not be
commenced without prior approval from ADMA-OPCO.
i.
Before any attempt is made to rectify machining errors by the application of
metal coatings, approval shall be obtained from ADMA-OPCO. However, in any
case, metal coating of the journal area under proximity vibration probes and
under impeller mounting is not acceptable.
j.
All associated equipment e.g. pressure vessels, pipework etc.shall comply with
this Specification.
k.
All components in 11-13% chromium steel shall be double tempered after either
normalizing or quenching, and unless stated otherwise in this Specification, the
hardness shall be 248 HV10 Kg (HRC22) maximum in conformity with the
NACE Standard.
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4.10.2 Centrifugal pumps
a.
Centrifugal pumps shall conform to API STD 610 and any other additional
requirements specified by ADMA-OPCO in the Purchase Order.
b.
Austenitic nodular iron to BS 3468 Grade S2 or equivalent is acceptable in
certain cases, subject to approval by ADMA-OPCO. Welding of this material,
including repair welding, is not permitted. However, this material is not
acceptable where cavitations conditions are expected to occur. All castings shall
be proved sound by radiography, and they shall be stress relieved at 620/670 C 0
(1148/1240 F0).
c.
Shafts in plain carbon and low alloy steels shall be totally protected from the
process stream by corrosion-resistant sleeves, cap nuts (where applicable) etc.,
integrity of such protection shall be checked/approved by ADMA-OPCO.
Unprotected 11-13% chromium steel may be used only where it has adequate
corrosion resistance to the process fluid.
4.10.3 Centrifugal Compressors
4.11
a.
Centrifugal compressors shall conform to API STD 617 and any other additional
requirements specified by ADMA-OPCO in the Purchase Order.
b.
Fabrication processes which results in cold-worked material, e.g. riveting of
impellers, shall not be employed unless prior approval has been obtained from
ADMA-OPCO. However, riveted impellers are not acceptable for high speed and
high discharge pressure gas compressors.
Instrumentation
4.11.1 Instrument piping shall be in accordance with the associated process line specification
unless otherwise specified or approved by ADMA-OPCO.
4.11.2 All instrument bodies manufactured from austenitic stainless steels shall be in the
'Solution Annealed' condition.
4.11.3 Austenitic stainless steel bellows, diaphragms, orifice plate, thermo-wall, Bourdon
tubes and other stainless steel items which cannot be heat treated following welding or
cold forming are not acceptable. Alternative materials are Incoloy 825, Incoloy 925,
Inconel 625, Monel 400 and Monel K500.
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4.12
Internal /External Bolting
4.12.1 Bolting Material shall comply with the NACE Standard requirements when in contact
with any concentration of wet H2S (see also clause 4.1.5 of this Specification).
4.12.2 Due to environmentally induced stress corrosion cracking problems, standard austenitic
stainless steel bolting (304, 316 Grades) is not acceptable for pressure containment
purposes e.g. valves bodies & bonnets, pumps casing. Alternative high nickel stainless
steels or duplex stainless steels such as Incoloy 925 shall be used depending on the
operating temperature envelope.
4.12.3 Where austenitic stainless steel bolts and nuts are required for sour and low temperature
service, these items shall be free from cold work, they shall be solution treated after
thread rolling etc. as outlined below:
a.
Bolts shall be ASTM A 193 (Class 1, 1A, 1B only) bolts solution treated after all
cold work including thread rolling.
b.
Nuts shall be the 'A' suffix variety of ASTM A 194 e.g. Grade 8MA (Type 316)
solution treated after all hot or cold working.
c.
The maximum allowed hardness shall be 22HRC.
d.
The use of cold worked or strain hardened austenitic stainless steels (A193 Class
2 and Class 3) for sour service is not acceptable.
4.12.4 For external applications, the use of hot-dip galvanized bolting for optimum corrosion
protection under sour service is acceptable in accordance with ADMA-OPCO
Specification SP 1015. Rev.1. The base material for the bolt shall comply with the
requirements of the NACE Standard MR0175.
4.12.5 The use of PTFE coated bolting is not acceptable.
4.12.6 Where a facility has both sour and non-sour, production equipment bolts and nuts,
regardless of service are considered as “Exposed Bolting”.
4.12.7 Where a facility requires low temperature, production equipment bolts, and nuts,
regardless of services, are considered low temperature service.
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4.13
Bellows
4.13.1 Bellows units shall comply with the NACE Standard requirement when in contact with
any concentration of wet H2S (see also clause 4.1.5) of this specification.
4.13.2 Austenitic stainless steels shall not be used for bellows, but material selection may be
made according to the process conditions from the following:
a.
b.
c.
Incoloy 825
Inconel 625
Monel 400
Other materials may be proposed for approval by ADMA-OPCO. The production
procedure shall comply with the requirements of the NACE Standard.
4.14
Metallic Overlays
Explosively clad, roll bonded and fusion-bonded corrosion resistant overlays such as
austenitic stainless steels (e.g 316) and nickel base alloy (e.g Inconel 625, Incoloy 825)
are considered to be effective barriers to the sulphide environment. Where such
overlays are employed the backing material need not conform to this Specification
unless otherwise specified by ADMA-OPCO.
For quality control of overlays, refer to fabrication section 5 in this Specification.
4.15
Metallic Coatings (External & Internal)
4.15.1 Metallic coatings such as Electroplating, Electroless, and Thermal Spray are not
acceptable for protection from SSC. These materials can be used for corrosion
protection or wear resistance applications.
4.15.2 Unless otherwise specified herein, zinc coating (electroplating or galvanized) for
piping component shall not be used for sour service. The use of HVOF (High Velocity
Oxy-Fuel) Thermal spray shall be subject to ADMA-OPCO approval.
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4.16
Non-metallic Materials for Sour Service
All non-metallic materials proposed for O-rings, seals, seal rings, gaskets, shall be
subject to approval by ADMA-OPCO. The following additional requirements shall be
applied:
4.16.1 Elastomeric Seals
Nitrile Rubbers are not acceptable for sour service but Fluroelastomers e.g. VITON,
ELASTO-LION, KALREZ or CHEMRAZ are acceptable subject to AMDA-OPCO
approval. Elastomeric seals shall be tested and certified for resistance to explosive
decompression.
4.16.2 Thermoplastic Seals
PTFE is acceptable for sour service, but EPDM is not suitable
4.17
Storage Tanks
4.17.1 Storage tanks shall conform to API STD 650 , and the tanks plates shall be “Z” quality
as per Appendix C of this Specification.
5.
WELDING AND FABRICATION
The following requirements related to welding and fabrication and heat treatment shall apply,
in addition to the requirements of the NACE Standard.
5.1
Approval of Heat-Treatment Procedure
Pre and post weld heat treatment shall generally be in accordance with ADMA-OPCO
SP-1035 and the requirements hereinafter unless otherwise specified by ADMA-OPCO.
For equipment which is to be post-weld heat treated, the following information shall
be submitted to ADMA-OPCO for approval.
5.1.1 Details of the method of heating, e.g. furnace, electric resistance, induction,… etc.
5.1.2 Details of thermocouples positions of.
5.1.3 Special requirements for heat-treatment, e.g. if it were proposed topost-weld heat treat
a heat-exchanger tube bundle incorporating tube end welding.
5.1.4 Copies of relevant heat treatment charts on completion.
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5.2
Small Bore Carbon Steel Pipework or less than DN75 mm (3 inch) NPS
Small bore
piping connections shall comply with
ADMA-OPCO CP-111.
the
requirements of
The TIG welding process shall be used for the butt welding of small bore carbon steel
pipework unless otherwise specified by ADMA-OPCO.
5.3
Possible Avoidance of Post-Weld Heat Treatment
To avoid the need for PWHT on the major part of a piping system, the following
requirements shall be met:
5.3.1 Standard welding procedures for all pipework shall provide for a minimum of two
passes.
5.3.2 The use of double sided welding on larger diameter pipe internal sealing runs to correct
bore misalignment, local internal repairs, the use of fittings requiring back welding, etc.
will all result in untempered weld beads on the process side. In such cases the
contractor or supplier shall either submit his proposals for ADMA-OPCO approval,
together with the test data, to show that the specified hardness limits have been met, or
shall PWHT the welds concerned and prove this to ADMA-OPCO.
5.3.3 Avoidance of PWHT will not be permitted on pipework with wall thickness greater
than 19 mm (0.750 in) without the required dispensation by ADMA-OPCO.
5.3.4 Repair to root runs are not permitted after subsequent runs have been made unless the
joint is subjected to PWHT or a simulated weld repair procedure has been qualified.
5.4
Welding Procedure Qualification Tests
5.4.1 Prior to the commencement of work, the fabricator or supplier shall submit to ADMAOPCO his proposals for evaluating the welding procedures, as per ADMA-OPCO STD103 and in particular those related to the control of hardness.
5.4.2 In the case of equipment which is to be post-weld heat treated, thewelding procedure
tests shall incorporate a hardness survey as specified in clause 5.4.5, of this
Specification.
5.4.3 In the case of 'as welded' equipment the fabricator or supplier shallsubmit to ADMAOPCO for approval the proposed method of meeting the hardness limits of typical butt
welds, internal sealing runs, branch welds and local repair etc.
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5.4.4 On receipt of approval of the proposals, the fabricator/supplier/contractor shall carry
out the required test welds and hardness surveys. The hardness surveys shall be carried
out on agreed samples cut from approved procedure test coupons.
5.4.5 Test coupons shall be ground smooth and macro etched to reveal the various zones of
the weld. Hardness traverses shall be made at a distance of 2 mm (0.079 in) from the
inner and outer surfaces of the weld joint using the Vickers hardness test method with a
load of 10 kg.
The hardness traverse shall include the parent metals, weld, weld heat affected zones on
both sides of the joints, and the positions of the indentations shall be selected to
establish peak hardness values. The maximum permitted hardness shall be 248 HV10
Kg (HRC22).
5.4.6 The results of the tests shall be submitted to ADMA-OPCO or an approved
independent inspectorate for acceptance.
5.5
Overlays:
5.5.1 The minimum acceptable overlay thickness shall be 3 mm.
5.5.2 Welding overlay material Corrosion-Resistant Alloy CRA, on carbon steel or stainless
steel material used in sour service shall comply with the material requirements of the
NACE Standard MR0175.
5.5.3 A complete Overlay Welding Procedure Qualification Record (PQR) in accordance
with ASME IX, shall include the following:
a.
Chemical analysis
The chemical composition of the overlay shall conform to the Specification limits
of the corresponding NACE-approved materials. For nickel-base alloy overlay,
the maximum Fe (Iron) dilution allowed shall be 10%.
b.
Mechanical properties
The base material shall retain the minimum mechanical property requirements
after Post-Weld Heat treatment. Hardness in the weld overlay shall comply with
the requirements of NACE Standard. Hardness shall be conducted in the weld
overlay, HAZ and base material.
5.5.4 Weld overlay repairs and associated base metal build-up for use in sour service shall
conform to the requirements of NACE Standard MR0175.
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6.
IDENTIFICATION STAMPING AND MARKING
6.1
Hard Stamps
Conventional sharp 'V' stamping is acceptable only on the outer circumferences of
flanges. Round 'U' stamps may be used elsewhere, providing the identities are placed
on the external surfaces of low stress areas. Where stamps have been inadvertently
applied to high stress areas, subsequent heat treatment is required unless approved
otherwise by ADMA-OPCO.
6.2
Marking
Conventional paints, crayons and adhesive tapes frequently used for temporary
marking during fabrication etc. shall not be used on any stainless steel, and if used on
carbon or low alloy steels they shall be removed before heat treatment (if applied) and
before shipment if heat treatment is not required.
7.
INSPECTION
In addition to normal inspection, the following shall apply:
2
7.1
Documentation shall be provided to prove the identity of all material of construction
and to establish that the correct heat treatment has been applied so that the finished
product complies fully with this Specification.
7.2
The Manufacturer shall conduct hardness tests to ensure that the hardness requirements
of this Specification are met and these should be certified/approved as indicated in
clause 5.4.6. Where hardness values in excess of the requirements of this Specification
and the NACE Standard MR0175 are obtained, the part shall be rejected.
7.3
Except in the case of austenitic stainless steels, for small items, e.g. small springs, pins
etc. which can not be hardness tested individually, the manufacturer shall conduct tests
on a random basis by selecting components from production runs or stores batches to
ensure that the product complies fully with this Specification.
7.4
For austenitic stainless steels, the manufacturer shall certify that the specified heat
treatment has been carried out correctly.
7.5
Details of components materials and the material condition shall be subject to
ADMA-OPCO approval prior to manufacture.
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8.
2
PACKING, PROTECTION AND PRESERVATION
8.1
Packing, protection, preservation, identification, storage and handling of materials shall
as a minimum meet the requirements stipulated by ADMA – OPCO Specification
SP – 1002.
8.2
Moreover, Stainless steels shall be protected externally before transporting to site as per
ADMA-OPCO SP-1002 requirements. The protection shall be maintained during
construction and operation at site. Protection of welds and associated heat affected
zones is most important. Any painting specification used in the context of this section
shall be in accordance with ADMA-OPCO Specification SP-1020 PSN 530 or
approved alternative.
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APPENDIX-A: PREVENTION OF STRESS CORROSION CRACKING IN SOUR
SERVICE WITH CHLORIDES
REQUIREMENTS FOR AUSTENITIC STAINLESS STEELS
The limitations of Chloride Stress-Corrosion Cracking (CSCC) of austenitic stainless seel
components in sour service with chlorides are as following:
2
A.1
The graph on Figure A-1 shows the relationship between the temperature and chloride
concentration levels during service and the onset of Chloride Stress Cracking.
A.2
Austenitic stainless steels shall be in the solution annealed condition. For bolting,
material shall not be supplied in the strained or cold worked conditions.
A.3
Bends in pipework and tubing and other cold formed items shall be solution annealed
at 1050°C (1920°F) or stress relieved at 950° + 20°C (1740 + 68°F) after forming.
A.4
Austenitic stainless steels are not acceptable for bellows or other components in the
cold worked or highly stressed condition; note that NACE Standard prohibits the use of
cold worked austenitic stainless steels. Incoloy 825 is an acceptable material among
others for this duty.
A.5
Stainless steel Instrumentation tubing shall be PVC sheathed.
A.6
For welded equipment, stabilized or low carbon grades shall be used, and unless
otherwise approved by ADMA-OPCO, all welded items shall be either solution
annealed at 1050°C (1920°F) or stress relieved at 950 + 20 °C (1742 + 68°F).
A.7
Because of the significantly greater risk of crevice corrosion in sour/chloride service,
the use of socket welded fittings, or any other weld detail which could result in a
crevice on the process side is not permitted.
A.8
Fusion-bonded and Hard facing weld overlays such as Stellite, Tungsten carbide, or
Colmonoy may be applied to stabilized or low carbon grades of austenitic stainless
steels, provided that the component is subsequently stress relieved at 950 + 20° C
(1742+68°F), held for 1 hour per 25mm (1 in) of thickness and cooled in still air.
A.9
Pipework shall be painted externally to in accordance with ADMA-OPCO painting
Manual MNL-01.
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FIGURE - A1
Chloride Stress Cracking Region For Austenitic TP 304 & TP 316 Stainless Steel
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APPENDIX-B: PREVENTION OF STRESS CORROSION CRACKING IN SOUR SERVICE
WITH CAUSTIC OR OTHER ALKALINE PROCESS FLUIDS
B.1
General Requirements for Carbon Steel Equipment
B.1.1 Carbon steel is generally an acceptable material for handling certain caustic soda and
other alkaline solutions. However, it has limitations in that stress corrosion cracking
can occur unless the equipment is stress relieved, also unacceptable general corrosion
can take place at elevated temperatures.
B.1.2 The stress relief requirements and upper temperature limits as given in Figure B-l shall
be applied, for carbon steel vessels and pipework in caustic soda and other alkaline
service. Stress relief shall be applied to the whole vessel, and to welds, cold bends etc.,
in the case of pipework.
B.1.3 Where the caustic soda or other alkaline solution is at a temperature in excess of that
shown in Area B (Figure B-1) material selection shall be subject to approval by
ADMA-OPCO.
B.1.4 Figure B-1 shall apply to vessels and pipework only; material selection forother
equipment, e.g. pumps, shall be subject to approval by ADMA-OPCO.
B.2
Sour Streams Containing Amines
B.2.1 To avoid stress corrosion cracking of carbon steel welds exposed to DEA solutions
used in hydrogen sulphide sweetening plants, stress relieving of all welds is required.
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APPENDIX-C:SPECIFICATION FOR STEEL PLATE (Z QUALITY)
C.1
Scope
This specification defines requirements for the manufacture and supply of steel plates
with enhanced through-thickness properties for special applications.
C.2
Definition
Steel with enhanced through-thickness properties, i.e Z direction properties, are
conventionally referred to as Z quality steels and the suffix Z may be affixed to the
steel specification designation.
e.g.
BS EN 10028 :
BS EN 10155 :
224-161 Grade 360-Z
Grade 50D-Z
This signifies that the material has been produced by special steel making and rolling
procedures and has been subject to ultrasonic and mechanical tests in the through
thickness or Z direction.
Some steel mills use the suffixes Z15, Z25 and Z35 as specified in ISO 7778 to signify
that Z direction reduction of area average values of 15%, 25% or 35% have been met.
ADMA-OPCO requirement is for Z direction reduction of 30% minimum, for which
the suffix Z30 shall be used for ADMA-OPCO materials.
C.3
Material
C.3.1 Standards
The plate furnished by the supplier shall meet the requirements of the specified grade
of material designated in the Purchase Order together with the following supplementary
requirements.
a.
Process of Manufacture
Steels shall be made by a low sulphur and low phosphorus refining process, for
example, in an electric furnace with double deslagging or in the basic oxygen
furnace (BOF). The steel shall be vacuum degassed while molten by means of a
ADMA-OPCO approved process.
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b.
Chemical Composition
The following supplementary requirements shall apply:
Element
Check Analysis %
Carbon
0.20 Max.
Sulphur
0.005 Max.
Phosphorus
0.025 Max
Carbon Equivalent
0.42 Max
The carbon equivalent values used in the above Table shall be calculated by means of
the following formula:
CE = C + Mn + Cr+Mo+V + Ni+Cu
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5
15
C.4
Inspection Requirements for Plate
C.4.1 Ultrasonic Examination
Material supplied in accordance with this specification shall be ultrasonically tested in
accordance with the requirements of BS 10160 - Grade LC3 or an equivalent approved
by ADMA-OPCO.
C.4.2 Through-Thickness Tensile Test
At the commencement of production and subsequently, unless approved otherwise by
ADMA-OPCO, six through-thickness tensile tests shall be conducted at the locations
shown on Figure C-l of each plate as rolled*. For plates over 30mm (1.18 in) thick, the
specimens shall have an extension friction
welded to one surface as shown in
Figure C-2 which also shows the disposition of the specimen relative to the plate
thickness and the size of specimen. For thinner plates, full thickness specimens with
two friction welded end pieces shall be used.
* Plate as rolled means a plate rolled from one slab.
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The following minimum requirements shall be achieved:
Reduction of Area (Z direction)
Elongation on 3.54 D
30% minimum
18% minimum
The through-thickness test shall be made after the completion of all heat treatments.
In addition to the above, all the necessary tests required by the relevant material
specification shall be carried out.
C.5
Weld Repair of Plate
Weld repair of plate surface defects will not be permitted without ADMA-OPCO
approval and shall be subject to an agreed repair procedure prior to the work being
carried out.
C.5.1 The Extent of Defects that may be Repaired
a.
Depths of Defects
After complete removal of the defects, the remaining thickness shall be checked
to ensure that the depth of defect does not exceed l0 mm (0.39 in) or 20% of the
nominal thickness of the plate, whichever is the smaller. Plate with defects in
excess of the above depth shall be rejected.
b.
Area of Defects
On any one surface of a plate, the total repaired area shall not exceed 2% of the
total area of that surface.
C.5.2 Heat-Treatment after Welding Repair
All plates subjected to welding repair shall be stress relieved after welding if the plates
are supplied in the normalized condition.
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Appendix- C Cont’d
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APPENDIX-D: HYDROGEN INDUCED CRACKING (HIC) TEST REQUIREMENTS OF
CARBON STEEL PLATE, PIPE, FORGINGS, AND FITTINGS
D.1
HIC testing shall be conducted in accordance with NACE Standard TM0284- using
NACE Standard TM0177 test solution A.
D.2
The number of Test coupons will be as following:
D.3
a.
Plate and pipe shall be as given in the NACE Standard TM0284.
b.
Forgings shall be three specimens taken from flange hub.
c.
Fittings shall be three specimens taken at equi-distant points around the fitting
and shall be removed for testing.
For each coupon, the Crack Length Ratio (CLR), Crack Thickness Ratio (CTR), and
Crack Sensitivity Ratio (CSR) shall be determined as given in the NACE Standard
TM0284 with including the following information:
a.
-Individual values measured on each sub-section of the three test coupons
b.
-Average values of the three sub-sections of each of the three coupons
c.
-Average value for the three coupons (nine sub-sections).
Acceptance criteria shall be based on the calculated average for each coupon ie. the
average of the three individual sub-sections, not the average of the nine sub-sections.
The limits for acceptance are given below:
-Average CLR
-Average CTR
-Average CSR
2
<= 10%
<=0.5 %
<= 1.5 %
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APPENDIX-E: REFERENCED DOCUMENTS
Unless otherwise specified, the latest edition of the Standard Engineering Documents listed
below shall to the extent specified herein, represent part of this Standard.
ADMA-OPCO Engineering Documents
STD-103
Approval of Welding Procedure & welders performance
STD-108
Flanges
STD-122
Casing, Tubing and Drill Pipe
STD-123
Casing Hardware, Downhole Completion and Wireline Equipment for Sour
STD 124 Part 1 & 2 Alloy 825 Casing, Tubing and Couplings.
STD-125
Wellhead and Christmas Tree Equipment to API Spec 6A.
SP-1002
Preservation of New Materials & Equipment
SP-1011
Specification for Line Pipe Part 1, 2 & 3
SP-1015
Specification for Hot Dip and Spun Galvanized for Bolting.
SP-1020
General Specification for Protective Painting.
SP-1035
Specification for Pre & Post Weld Heat Treatment of Metals
CP-102
Third party Inspection and Certification Requirements For New Equipment and
Materials in Manufacture
CP-111
Design, Installation and Inspection of Small bore carbon steel piping
connections
ANSI/ASME Publications
B16.5
B31.3
B31.4
B31.8
VIII, DIV.1
Pipe Flanges and Flanged Fittings NPS 1/2 Through NPS 24
Chemical Plant and Petroleum Refinery Piping.
Pipeline Transportation Systems for Liquid Hydrocarbons and other Liquids
Gas Transmission and Distribution Piping Systems.
Rules For Construction of Pressure Vessel
API Publications
Spec. 5L
STD 610
STD 617
STD 650
2
Specification for Line Pipe
Centrifugal Pumps for General Refinery Services
Centrifugal Compressors for General Refinery Services.
Welded Steel Tanks for Oil Storage
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ASTM Publications
ASTM A105 Standard Specification for Carbon Steel Forgings for Piping Applications
ASTM A106 Standard Specification for Seamless Carbon Steel Pipe for High-Temperature
Service
ASTM A333 Standard Specification for Seamless and Welded Steel Pipe for LowTemperature Service
ASTM A193 Alloy-Steel and Stainless Steel Bolting Materials for High Temperature Service.
ASTM A194 Carbon and Alloy Steel Nuts for Bolts for High Pressure and High
Temperature Service.
ASTM A234 Standard Specification for Piping Fittings of Wrought Carbon Steel and Alloy
Steel for Moderate and High Temperature Service
ASTM A395 Ferritic Ductile Iron Pressure - Retaining Castings for Use at Elevated
Temperatures
ASTM B633 Electro deposited coatings of Zinc on Iron and Steel
BSI Publications
BS EN 10028 Flat Products Made of Steels for Pressure Purposes.
BS EN 3468 Austenitic Cast Iron
BS EN 10155 Structural Steels with improved Atmospheric Corrosion Resistance. Technical
Delivery Conditions
BS EN 10160 Ultrasonic Testing of Steel Flat Product thickness equal or greater than 6 mm
ISO Publications
ISO 7778
Steel Plate with Specified through Thickness Characteristic
NACE Publications
MR0175
TM0284
TM0177
Material Requirement - Sulphide Stress Cracking Resistant Metallic Material
for Oil Field Equipment.
Test Method Evaluation or Pipeline Steels for Resistance to Stepwise Cracking.
Testing of Metals for Resistance to Sulphide Stress Cracking at Ambient
Temperatures
TEMA Publications
Tubular Exchanger Manufacturers Association
EEMUA Publications
PUB 143
2
Recommendations for Tube End Welding & Tubular Heat Transfer Equipment
Part - 1 Ferrous Materials
03-03 General Revision
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APPENDIX-F: ABBREVIATIONS
ADIP.
:
ADMA-OPCO.:
API.
:
ASME. :
ASTM. :
BS.
:
CE
:
CRA
:
CSCC
DEA
:
EEMUA. :
EFW.
:
EPDM :
ERW.
:
H2S.
:
HIC.
:
HRC.
:
HV.
:
ID.
:
IQI.
:
ISO.
:
ITP.
:
MEA.
:
MPI.
:
NACE. :
NDT.
:
NPS.
:
OD.
:
PTFE. :
PWHT. :
QA.
:
QAS.
:
QC.
:
SCC.
:
SOHIC :
SSC.
:
TEMA. :
TIG.
:
TPA.
:
2
Di-Isopropanolamine
Abu Dhabi Marine Operating Company
American Petroleum Institute
American Society for Mechanical Engineers.
American Society for Testing and Material.
British Standards
Carbon Equivalent
Corrosion Resistant Alloy
Chloride Stress-Corrosion Cracking
Di-Ethylamine
The Engineering Equipment and Materials Users Association
Electric Fusion Welded
Ethylene Propylene Rubber
Electric Resistance Welded
Hydrogen Sulphide
Hydrogen Induced Cracking
Rockwell Hardness Scale C
Vickers Hardness
Inside Diameter
Image Quality Indicator
International Organization for Standardization
Inspection and Test Plan
Mono-Ethanolamlne
magnetic Particle Inspection.
National Association of Corrosion Engineers
Non - Destructive Test.
Nominal Pipe Size
Outside Diameter
Polytetrafluoroethylene
Post Weld Heat Treatment
Quality Assurance
Quality Assurance System
Quality Control
Stress Corrosion Cracking
Stress Oriented Hydrogen Induced Cracking
Sulphide Stress Cracking
Tubular Exchanger Manufacturers Association
Tungsten Inert Gas
Third Party Agency
03-03 General Revision
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37
APPENDIX-G: DEFINITIONS
2
Purchaser.
:
Refers only to ADMA-OPCO or its nominated
Representative.
ADMA-OPCO.
:
The Abu Dhabi Marine Operating Company
Manufacturer.
:
The named Manufacturer in the ADMA-OPCO Purchase Order. The
term "Manufacturer" as used in this Standard includes all Manufacturers
and sub-suppliers of equipment covered by this Standard.
Representative.
:
The Third Party inspection organization appointed by ADMA-OPCO.
Quality Assurance. :
All those planned and systematic actions (QA) necessary to ensure
quality i.e. to provide adequate confidence that a product or service will
be fit for its intended purpose.
Quality Manual.
:
A document setting out the general quality policies, procedures and
practices manufacturing organization.
Quality System.
:
The structure organization, responsibilities, activities, resources and
events that together provide organized procedures and methods of
implementation to ensure the capability of the organization to meet
quality requirements.
Quality Plan.
:
A document prepared by the Manufacturer setting out the specific
quality practices, resources and activities relevant to a particular project.
ITP.
:
Inspection & test plan prepared by the Manufacturer reviewed and
approved by ADMA-OPCO highlighting the principal hold and
witnessing points during the production of line pipe.
Pipework.
:
Piping Configuration including fittings & Flanges
03-03 General Revision
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Sheet 1 of 1
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38
APPENDIX-H: Origination, Review, Approval & Endorsement Authorities History Of SP-1000
Issue /
Rev. No.
Name
TITLE
DIV
DATE
M.Khalid Elshobary
SE
ED.
8-10-92
J.N.DALLY
HQA
ED.
11-10-92
APROVAL
ENDORSEMENT
J.N.DALLY
HQA
ED.
11-10-92
A.E.Rashid
EM.
ED.
11-10-92
ORIGINATION
W. Cowie
Mett E
TSD
03-89
APROVAL
T.Daar
SSS
TSD
03-89
BY
ACTION
ORIGINATION
1
0*
Rev.0 was issued/designated as M-SP-1000
2
03-03 General Revision
Rev Date
Description / Text Affected
ADMA-OPCO
ADMA-OPCO/SEF/008
Rev. 0
Sheet 1 of 1
SP-1000
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39