SIST EN ISO 13628-1:2006/A1:2014

Petroleum and natural gas industries - Design and operation of subsea production systems - Part 1: General requirements and recommendations - Amendment 1: Revised Clause 6 (ISO 13628-1:2005/Amd 1:2010)

This part of ISO 13628 provides general requirements and overall recommendations for development of complete subsea production systems, from the design phase to decommissioning and abandonment. This part of ISO 13628 is intended as an umbrella document to govern other parts of ISO 13628 dealing with more detailed requirements for the subsystems which typically form part of a subsea production system. However, in some areas (e.g. system design, structures, manifolds, lifting devices, and colour and marking) more detailed requirements are included herein, as these subjects are not covered in a subsystem standard. The complete subsea production system comprises several subsystems necessary to produce hydrocarbons from one or more subsea wells and transfer them to a given processing facility located offshore (fixed, floating or subsea) or onshore, or to inject water/gas through subsea wells. This part of ISO 13628 and its related subsystem standards apply as far as the interface limits described in Clause 4. Specialized equipment, such as split trees and trees and manifolds in atmospheric chambers, are not specifically discussed because of their limited use. However, the information presented is applicable to those types of equipment. If requirements as stated in this part of ISO 13628 are in conflict with, or are inconsistent with, requirements as stated in the relevant complementary parts of ISO 13628, then the specific requirements in the complementary parts take precedence.

Erdöl- und Erdgasindustrie - Auslegung und Betrieb von Unterwasser-Produktionssystemen - Teil 1: Allgemeine Anforderungen und Empfehlungen - Änderung A1: Überarbeitung Abschnitt 6 (ISO 13628-1:2005/Amd 1:2010)

Industries du pétrole et du gaz naturel - Conception et exploitation des systèmes de production immergés - Partie 1: Exigences générales et recommandations - Amendement 1: Révision de l'Article 6 (ISO 13628-1:2005/Amd 1:2010)

Industrija za predelavo nafte in zemeljskega plina - Načrtovanje in upravljanje proizvodnje v podmorskih sistemih - 1. del: Splošne zahteve in priporočila - Dopolnilo 1: Popravljena točka 6 (ISO 13628-1:2005/Amd 1:2010)

General Information

• Status: Published
• Public Enquiry End Date: 29-Feb-2008
• Publication Date: 11-Feb-2014
• ICS: 75.180.10 - Exploratory, drilling and extraction equipment
• Technical Committee: I13 - Imaginarni 13
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 13-Jan-2014
• Due Date: 20-Mar-2014
• Completion Date: 12-Feb-2014
• Ref Project: EN ISO 13628-1:2005/A1:2010 - Petroleum and natural gas industries - Design and operation of subsea production systems - Part 1: General requirements and recommendations - Amendment 1: Revised Clause 6 (ISO 13628-1:2005/Amd 1:2010)

Relations

• Amends: SIST EN ISO 13628-1:2006 - Petroleum and natural gas industries - Design and operation of subsea production systems - Part 1: General requirements and recommendations (ISO 13628-1:2005)
• Effective Date: 01-Mar-2014

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 13628-1:2006/oprA1:2008
01-februar-2008
,QGXVWULMD]DSUHGHODYRQDIWHLQ]HPHOMVNHJDSOLQD1DþUWRYDQMHLQXSUDYOMDQMH
SURL]YRGQMHYSRGPRUVNLKVLVWHPLKGHO6SORãQH]DKWHYHLQSULSRURþLOD
'RSROQLOR3RSUDYOMHQRSRJODYMH,62'$0
Petroleum and natural gas industries - Design and operation of subsea production
systems - Part 1: General requirements and recommendations - Amendment 1: Revised
Clause 6 (ISO 13628-1:2005/DAM 1:2007)
Erdöl- und Erdgasindustrie - Auslegung und Betrieb von Unterwasser-
Produktionssystemen - Teil 1: Allgemeine Anforderungen und Empfehlungen (ISO 13628
-1:2005/DAM 1:2007)
Industries du pétrole et du gaz naturel - Conception et exploitation des systemes de
production immergés - Partie 1: Exigences générales et recommandations -
Amendement 1: Révision de l'Article 6 (ISO 13628-1:2005/DAM 1:2007)
Ta slovenski standard je istoveten z: EN ISO 13628-1:2005/prA1
ICS:
75.180.10
SIST EN ISO 13628-1:2006/oprA1:2008 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------

EUROPEAN STANDARD
DRAFT
EN ISO 13628-1:2005
NORME EUROPÉENNE
EUROPÄISCHE NORM
prA1
November 2007
ICS 75.180.10

English Version
Petroleum and natural gas industries - Design and operation of
subsea production systems - Part 1: General requirements and
recommendations - Amendment 1: Revised Clause 6 (ISO
13628-1:2005/DAM 1:2007)
Industries du pétrole et du gaz naturel - Conception et
exploitation des systèmes de production immergés - Partie
1: Exigences générales et recommandations -
Amendement 1: Révision de l'Article 6 (ISO 13628-
1:2005/DAM 1:2007)
This draft amendment is submitted to CEN members for parallel enquiry. It has been drawn up by the Technical Committee CEN/TC 12.
This draft amendment A1, if approved, will modify the European Standard EN ISO 13628-1:2005. If this draft becomes an amendment,
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for inclusion of this
amendment into the relevant national standard without any alteration.
This draft amendment was established by CEN 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 CEN Management Centre has the same
status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2007 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 13628-1:2005/prA1:2007: E
worldwide for CEN national Members.

---------------------- Page: 2 ----------------------

EN ISO 13628-1:2005/prA1:2007 (E)
Contents Page
Foreword.3

2

---------------------- Page: 3 ----------------------

EN ISO 13628-1:2005/prA1:2007 (E)
Foreword
This document (EN ISO 13628-1:2005/prA1:2007) has been prepared by Technical Committee ISO/TC 67
"Materials, equipment and offshore structures for petroleum and natural gas industries" in collaboration with
Technical Committee CEN/TC 12 “Materials, equipment and offshore structures for petroleum, petrochemical
and natural gas industries” the secretariat of which is held by AFNOR.
This document is currently submitted to the parallel Enquiry.
Endorsement notice
The text of ISO/DAM 13628-1:2005 has been approved by CEN as a EN ISO 13628-1:2005/prA1:2007
without any modification.

3

---------------------- Page: 4 ----------------------

DRAFT AMENDMENT ISO 13628-1:2005/DAmd 1
ISO/TC 67/SC 4 Secretariat: ANSI
Voting begins on: Voting terminates on:
2007-11-01 2008-04-01
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION • МЕЖДУНАРОДНАЯ ОРГАНИЗАЦИЯ ПО СТАНДАРТИЗАЦИИ • ORGANISATION INTERNATIONALE DE NORMALISATION
Petroleum and natural gas industries — Design and operation of
subsea production systems —
Part 1:
General requirements and recommendations
AMENDMENT 1: Revised Clause 6
Industries du pétrole et du gaz naturel — Conception et exploitation des systèmes de production immergés —
Partie 1: Exigences générales et recommandations
AMENDEMENT 1: Révision de l’Article 6
ICS 75.180.10

ISO/CEN PARALLEL ENQUIRY
The CEN Secretary-General has advised the ISO Secretary-General that this ISO/DIS covers a subject
of interest to European standardization. In accordance with the ISO-lead mode of collaboration as
defined in the Vienna Agreement, consultation on this ISO/DIS has the same effect for CEN
members as would a CEN enquiry on a draft European Standard. Should this draft be accepted, a
final draft, established on the basis of comments received, will be submitted to a parallel two-month FDIS
vote in ISO and formal vote in CEN.
In accordance with the provisions of Council Resolution 15/1993 this document is circulated in
the English language only.
Conformément aux dispositions de la Résolution du Conseil 15/1993, ce document est distribué
en version anglaise seulement.
To expedite distribution, this document is circulated as received from the committee secretariat.
ISO Central Secretariat work of editing and text composition will be undertaken at publication
stage.
Pour accélérer la distribution, le présent document est distribué tel qu'il est parvenu du
secrétariat du comité. Le travail de rédaction et de composition de texte sera effectué au
Secrétariat central de l'ISO au stade de publication.
THIS DOCUMENT IS A DRAFT CIRCULATED FOR COMMENT AND APPROVAL. IT IS THEREFORE SUBJECT TO CHANGE AND MAY NOT BE
REFERRED TO AS AN INTERNATIONAL STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS BEING ACCEPTABLE FOR INDUSTRIAL, TECHNOLOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN NATIONAL REGULATIONS.
RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT, WITH THEIR COMMENTS, NOTIFICATION OF ANY RELEVANT PATENT RIGHTS OF WHICH
THEY ARE AWARE AND TO PROVIDE SUPPORTING DOCUMENTATION.
©
International Organization for Standardization, 2007

---------------------- Page: 5 ----------------------

ISO 13628-1:2005/DAmd 1
PDF disclaimer
This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall
not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In
downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat
accepts no liability in this area.
Adobe is a trademark of Adobe Systems Incorporated.
Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation
parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the
unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below.
Copyright notice
This ISO document is a Draft International Standard and is copyright-protected by ISO. Except as permitted
under the applicable laws of the user's country, neither this ISO draft nor any extract from it may be
reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, photocopying,
recording or otherwise, without prior written permission being secured.
Requests for permission to reproduce should be addressed to either ISO at the address below or ISO's
member body in the country of the requester.
ISO copyright office
Case postale 56  CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail [e-mail]
Web www.iso.org
Reproduction may be subject to royalty payments or a licensing agreement.
Violators may be prosecuted.
©
ii ISO 2007 – All rights reserved

---------------------- Page: 6 ----------------------

ISO 13628-1:2005/CD Amd 1
Contents Page
Foreword .iv
6 Materials and corrosion protection .8
6.1 General principles.8
6.2 Corrosivity evaluation.15
6.2.1 Design premise.15
6.2.2 Internal corrosion.15
6.2.3 External corrosion.16
6.3 Corrosion mitigation.17
6.3.1 Galvanic corrosion mitigation.17
6.3.2 Weld overlay.17
6.3.3 Chemical treatment.17
6.3.4 Cathodic protection.17
6.3.5 Use of coating .18
6.4 Material selection.19
6.4.1 Subsea systems.19
6.4.2 Bolts.20
6.4.3 Seals and Gaskets .21
6.4.4 Polymeric materials.22
6.4.5 Umbilicals.22
6.5 Design limitations for candidate materials .23
6.5.1 General.23

© ISO 2007 – All rights reserved iii

---------------------- Page: 7 ----------------------

ISO 13628-1:2005/CD Amd 1
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
Amendment 1 to ISO 13628-1:2005 was prepared by Technical Committee ISO/TC 67, Materials, equipment
and offshore structures for petroleum, petrochemical and natural gas industries, Subcommittee SC 4, Drilling
and production equipment.
iv © ISO 2007 – All rights reserved

---------------------- Page: 8 ----------------------

ISO 13628-1:2005/CD Amd 1

Petroleum and natural gas industries — Design and operation
of subsea production systems —
Part 1:
General requirements and recommendations
AMENDMENT 1: Revised Clause 6
Page iii Contents Clause 6 delete and insert the following Contents list:
6 Materials and corrosion protection
6.1 General principals
6.2 Corrosivity eveluation
6.2.1 Design premise
6.2.2 Internal corrosion
6.2.3 External corrosion
6.3 Corrosion mitigation
6.3.1 Galvanic corrosion mitigation
6.3.2 Weld overlay
6.3.3 Chemical treatment
6.3.4 Cathodic protection
6.3.5 Use of coating
6.4 Material selection
6.4.1 Subsea systems
6.4.2 Bolts
6.4.3 Seals and Gaskets
6.4.4 Non- Metallic materials
6.4.5 Umbilicals
NOTE Similar subclauses on each product group, with references to the relevant ISO 13628 X, will be evaluated for
inclusion later.
6.5 Design limitations for candidate materials

6.5.1 General
© ISO 2007 – All rights reserved 5

---------------------- Page: 9 ----------------------

ISO 13628-1:2005/CD Amd 1
Page vi Introduction add the following paragraphs:
Clause 6 has been amended with a revised set of provisions that includes the general material design
requirements and recommendations applicable to the complete subsea production system.
This amendment has been based on the previous Clause 6, EEMUA Publication 194, several NORSOK
standards and many oil company and supplier material specifications.
This clause does not include detailed material requirements and recommendations, e.g. for manufacturing and
testing. Such information will be included in product specific parts of this standard. There should be no
duplication between Part 1 and the other parts of the standard, whereas there may be overlap of material
requirements between product specific parts. In case of conflict between Part 1 and product specific parts, the
latter shall take precedence.
Page 1,Clause 2 Normative references, add the following normative references:
ISO 898 (parts 1, 2, 5 and 6), Mechanical properties of fasteners made of carbons steel and alloy steel
ISO 3506-1, Mechanical properties of corrosion-resistant stainless-steel fasteners — Bolts, screws and studs
ISO 3506-2, Mechanical properties of corrosion-resistant stainless-steel fasteners — Nuts
ISO 8501-1: Preparation of steel substrates before application of paints and related products — Visual
assessment of surface cleanliness — Part 1: Rust grades and preparation grades of uncoated steel
substrates and of steel substrates after overall removal of previous coatings. Informative supplement to Part 1:
Representative photographic examples of the change of appearance imparted to steel when blast-cleaned
with different abrasives (ISO 8501-1:1988/Suppl: 1994)
ISO 8503: Preparation of steel substrates before application of paints and related products — Surface
roughness characteristics of blast-cleaned steel substrates
ISO 12944, Paints and varnishes — Corrosion protection of steel structures by protective paint systems
ISO 12944-2, Paints and varnishes — Corrosion protection of steel structures by protective paint systems —
Classification of environments
ISO 15156 (All parts), Petroleum and natural gas industries — Materials for use in H S-containing
2
environments in oil and gas production
ISO 15589-2, Cathodic protection of pipeline transportation systems — Part 2: Offshore pipelines
1)
ISO 23936 Petroleum and natural gas industries — Non-metallic materials in contact with media related to
oil and gas production
ASTM A 153, Standard Specification for Zinc Coating (Hot Dip) on Iron and Steel Hardware
ASTM A 193, Specification for Alloy — Steel and Stainless Steel Bolting Materials for High-Temperature
Service
ASTM A 194, Specification for Carbon and Alloy Steel Nuts for Bolts for High-Pressure and High-Temperature
Service
ASTM A 320, Specification for Alloy Steel Bolting Materials for Low-Temperature Service

1) In course pf preparation.
6 © ISO 2007 – All rights reserved

---------------------- Page: 10 ----------------------

ISO 13628-1:2005/CD Amd 1
ASTM A453, Standard Specification for High-Temperature Bolting Materials, with Expansion Coefficients
Comparable to Austenitic Stainless Steels
DNV RP-B401, Cathodic Protection Design
DNV RP F-112, Design of Duplex Stainless Steel Subsea Equipment exposed to Cathodic Protection
EN 10204, Metallic products — Types of inspection documents
NACE RP0176, Corrosion Control of Steel Fixed Offshore Structures Associated with Petroleum Production
NORSOK M-710, Qualification of non-metallic sealing materials and manufacturers (to be replaced by ISO
23936)
Page 3, Clause 3, add the following terms and definitions:
3.1.13
carbon steel
generic term to designate the full range of carbon and carbon-manganese steels used in the construction of
conventional oilfield equipment
3.1.14
corrosion resistant alloys (CRAs)
alloys that are intended to be resistant to general and localised corrosion in oilfield environments that are
corrosive to carbon steels
3.1.15
low alloy steel
steels containing between 1 % and less than 5 % of elements deliberately added for the purpose of modifying
properties
3.1.16
pitting resistance equivalent (PRE)
indices that exist in several variations which are usually based on observed resistance to pitting of CRAs in
the presence of chlorides and oxygen, e.g. seawater; however, though useful, these indices are not directly
indicative of the resistance to produced oil and gas environments
EXAMPLE The most common examples are:
F =w +3,3w +16w
PREN Cr Mo N
F =w +3,3(w +0,5w )+16w
PREW Cr Mo W N
where
w is the mass fraction of chromium in the alloy, expressed as a percentage of the total composition;
Cr
w is the mass fraction of molybdenum in the alloy, expressed as a percentage of the total composition;
Mo
w is the mass fraction of tungsten in the alloy, expressed as a percentage of the total composition;
W
w is the mass fraction of nitrogen in the alloy, expressed as a percentage of the total composition.
N
3.1.17
sweet service/sour service
terms used to distinguish between service in H S free (sweet) and H S containing (sour) fluids. In this
2 2
standard ‘sour service’ refers to conditions where the H S content is such that restrictions as specified by ISO
2
15156 (all parts) apply
© ISO 2007 – All rights reserved 7

---------------------- Page: 11 ----------------------

ISO 13628-1:2005/CD Amd 1

Page 42, Clause 6, delete and insert the following Clause 6:
6 Materials and corrosion protection
6.1 General principles
The materials selection process shall take into account the overall philosophy regarding design lifetime, cost
profile (i.e. investment, operation and life cycle cost), inspection and maintenance philosophy, safety and
environmental profile, failure risk evaluations and other specific project requirements.
Materials selection shall be optimised with respect to costs and provide acceptable safety and reliability in
accordance with all statutory, regulatory and other framework requirements that apply to the project.
The material selection process shall be optimized by considering the design lifetime, costs (e.g. investment,
operation and life cycle costs), inspection and maintenance requirements, failure risk evaluations and other
requirements specific to the project. It shall provide acceptable safety and reliability in accordance with all
statutory, regulatory and other framework requirements that apply to the project.
As a minimum, the following shall be considered:
• corrosivity (see 6.2), taking into account specified operating conditions including start up, shut-down
conditions and well stimulation and flowback operations;
• corrosion during transportation of materials, storage, construction, installation and testing prior to start-up
shall be considered;
• possible seawater flooding during installation and testing shall be taken into account;
• design life and system availability requirements;
• failure probabilities, failure modes and failure consequences for human health, environment, safety and
material assets;
• previous experience;
• effect of temperature;
• corrosion resistance;
• environmental cracking;
• erosion resistance;
• resistance to brittle fracture;
• resistance to fatigue;
• corrosion fatigue loaded components;
• inspection and corrosion monitoring;
• access for maintenance and repair;
• compatibility with cathodic protection.
8 © ISO 2007 – All rights reserved

---------------------- Page: 12 ----------------------

ISO 13628-1:2005/CD Amd 1
Alternatives to the requirements in this clause may be utilized when agreed upon to suit specific field
requirements. The intention is to facilitate and complement the material selection process rather than to
replace individual engineering judgment and, where requirements are non-mandatory, to provide positive
guidance for the selection of an optimum solution.
Similarly, the normative references in this International standard may be replaced by other recognized
equivalent standards when agreed upon.
Some common oilfield alloys are described in Table 1.
© ISO 2007 – All rights reserved 9

---------------------- Page: 13 ----------------------

ISO 13628-1:2005/CD Amd 1


Table 1 — Some common oilfield alloys
Common Other

name UNS Fe C Cr Ni Mo N W Nb Cu Mn elements
  min max max min max min max min max min max min max min max min max min max
w w w w w w w w w w w w w w w w w w w
   i    b b
Fe Fe C Cr Cr Ni N Mo Mo N N W W N N Cu Cu Mo Mo
 % % % % % % % % % % % % % % % % % % %
Nb 0,12
to 0,20, V
Nitronic 50 S20910 balance 0,030 20,50 22,00 11,75 13,00 2,00 2,50 0,24 0,30 0,00 0,50 0,12 0,20
0,10
to 0,30
Nb 0,10
Nitronic 60 S21800 balance 0,030 16,00 17,00 8,00 8,50 0,00 0,75 0,10 0,18 0,00 0,15 0,00 0,10 0,00 0,75  max, V
0,20max
9 Cr-1 Mo K90941 balance 0,200 8,00 10,00 0,50 0,90 1,00    0,25 0,30 0,60
13 Cr S41000 balance 0,150 11,50 13,50       1,00
Super 13 Cr S41425 balance 0,015 12,00 15,00 4,33 7,00 1,50 2,50 0,010     1,30
F6NM S41500 balance 0,050 11,50 14,00 3,50 5,50 0,50 1,00     0,50 1,00
CA6NM J91540 balance 0,060 11,50 14,00
AISI 316L S31603 balance 0,030 16,00 18,00 10,00 14,00 2,00 3,00 0,00 0,10    2,00
904L N08904 balance 0,020 19,00 23,00 23,00 28,00 4,00 5,00     2,00
1925hMo N08926 balance 0,020 19,00 21,00 24,00 26,00 6,00 7,00 0,17 0,25   0,50 1,50 2,00
254SMO S31254 balance 0,020 19,50 20,50 17,50 18,50 6,00 6,50 0,18 0,22   0,50 1,00 1,00
Ti 2,15, V
0,10 to
0,50, Si
A-286 S66286 balance 0,080 13,50 16,00 24,00 27,00 1,00 1,50     2,00
1,00 max,
Al
0,35max
© ISO 2007 – All rights reserved 10

Stainless Steels Group

---------------------- Page: 14 ----------------------

ISO 13628-1:2005/CD Amd 1

Table 1 — Some common oilfield alloys (continued)
Common Other
name UNS Fe C Cr Ni Mo N W Nb Cu Mn elements
  min max max min max min max min max min max min max min max min max min max
w w w w w w w w w w w w w w w w w w w

Fe Fe C Cr Cr Ni Ni Mo Mo N N W W Nb Nb Cu Cu Mo Mo
 % % % % % % % % % % % % % % % % % % %
A oy 28 N08028 balance 0,030 2600 2800 2950 3250 3,00 4,00 0,60 1,40 2,00
ll , , , ,
a
22 Cr duplex S31803 balance 0,030 21,00 23,00 4,50 6,50 2,50 3,50 0,08 0,20    2,00
22 Cr duplex S32205 balance 0,030 22,00 23,00 4,50 6,50 3,00 3,50 0,14 0,20    2,00
25 Cr super
S32550 balance 0,040 24,00 27,00 4,50 6,50 2,00 4,00 0,10 0,25   1,50 2,50 1,50
duplex
25 Cr super
S31260 balance 0,030 24,00 26,00 5,50 7,50 2,50 3,50 0,10 0,30 0,10 0,50  0,20 0,80 1,00

duplex

25 Cr super
S32520 balance 0,030 24,00 26,00 5,50 8,00 3,00 5,00 0,20 0,35   0,50 3,00 1,50
b
duplex

25 Cr super
S32750 balance 0,030 24,00 26,00 6,00 8,00 3,00 5,00 0,24 0,32    1,20
duplex

25 Cr super

S32760 balance 0,030 24,00 26,00 6,00 8,00 3,00 4,00 0,20 0,30 0,50 1,00  0,50 1,00 1,00
duplex
25 Cr super
S39274 balance 0,030 24,00 26,00 6,00 8,00 2,50 3,50 0,24 0,32 1,50 2,50  0,20 0,80 1,00
duplex
25 Cr super P<0,035;
S09935 balance 0,025 24,00 26,00 6,50 8,00 3,00 4,00 0,23 0,33   1,20 2,00 0,80
b
duplex
S<0,002



© ISO 2007 – All rights reserved 11

Stainless Steels Group

---------------------- Page: 15 ----------------------

ISO 13628-1:2005/CD Amd 1
Table 1 — Some common oilfield alloys (continued)
Common Other
name UNS Fe C Cr Ni Mo N W Nb Cu Mn elements
  min max max min max min max min max min max min max min max min max min max
w w w w w w w w w w w w w w w w w w w

Fe Fe C Cr Cr Ni Ni Mo Mo N N W W Nb Nb Cu Cu Mo Mo
 % % % % % % % % % % % % % % % % % % %
Si
0,00 2,00 0,250  63,00 70,00      1,50
Alloy K-500 N05500
0,50max
Si
1,00max,
Alloy 20 N08020 balance 0,070 19,00 21,00 32,00 38,00 2,00 3,00    3,00 4,00 2,00
Nb+Ta=8
C-1,00
Si 1,0
max, Al
Alloy 800 N08800 39,50 0,100 19,00 23,00 30,00 35,00     0,15 0,60 1,50
0,15 to
0,6
Ti 0,15-
Alloy 825 N08825  0,050 19,50 23,50 38,00 46,00 2,50 3,50     1,00
0,6
Alloy 925 N09925  0,030 19,50 23,50 38,00 46,00 2,50 3,50      Si<0,50
Si<0,50,
S<0,001,
P<0,025,
Alloy 935 N09935 balance 0,030 19,50 22,00 35,00 38,00 3,00 5,00  1,00 0,20 1,00 1,00 2,00 1,00 Al<0,50,
Ti 1,8 to
2,5,
Co,1,0
 0,100 20,00 23,00 balance 8,00 10,00     0,50
Alloy 625 N06625
 0,060 20,00 23,00 balance 8,00 10,00     1,00
Cast 625



12 © ISO 2007 – All rights reserved

Nickel Alloys Group

---------------------- Page: 16 ----------------------

ISO 13628-1:2005/CD Amd 1
Table 1 — Some common oilfield alloys (continued)
Common Other
name UNS Fe C Cr Ni Mo N W Nb Cu Mn elements
  min max max min max min max min max min max min max min max min max min max
w w w w w w w w w w w w w w w w w w w
   i
Fe Fe C Cr Cr N Ni Mo Mo N N W W Nb Nb Cu Cu Mo Mo
 % % % % % % % % % % % % % % % % % % %
Al,0,35,
P<0,015,
Custom 625 N07716 ~5 0,030 19,00 22,00 59,00 63,00 7,00 9,50   2,75 4,00   S<0,01,
Si<0,2, Ti
1,0 to1,6
Al 0,5, Cu
0,15, Ti
Alloy 718 N07718 19,00 0,080 17,00 21,00 50,00 55,00 2,80 3,30     0,35 0,90,
Nb+Ta 5,
Fe 19
 0,030 19,00 22,50 55,00 59,00 7,00 9,50     0,35
Alloy 725 N07725 Si 0,20
X-750 N07750 5,00 9,00 0,080 14,00 17,00 70,00       1,00 Si 0,50
20Cb-3 N08020  0,070 19,00 21,00 32,00 38,00 2,00 3,00    3,00 4,00 2,00
Alloy 2050 N06250  0,020 20,00 22,00 50,00 52,00 9,00 11,00    1,00 1,00 Cu 1,0
Alloy 2535  0,020 23,00 26,50 34,00 37,00 3,00 4,00     1,00
Alloy 2550 N06255  0,030 23,00 26,00 47,00 52,00 6,00 9,00     1,00 Cu 1,2
G3 N06985
G50 N06950

Table 1 — Some common oilfield alloys (continued)
Common Other
name UNS Fe C Cr Ni Mo N W Nb Cu Mn elements
ma ma ma ma
  min max max min max min max min max min x min x min x min max min x
© ISO 2007 – All rights reserved 13

Nickel Alloys
Group Group

---------------------- Page: 17 ----------------------

ISO 13628-1:2005/CD Amd 1
w w w w w w w w w w w w w w w w w w w
   i i
Fe Fe C Cr Cr N N Mo Mo N N W W Nb Nb Cu Cu Mo Mo
 % % % % % % % % % % % % % % % % % % %
Alloy C276 N10276 4,00 7,00 0,020 14,50 16,50 balance 15,00 17,00  3,00 4,50   1,00 Co 2,5
Fe 2,6,
Alloy C22 N06022  0,010 20,00 22,50 balance 12,50 14,50  2,50 3,50
Co 2,5,
Co
Monel 400 N04400 0,00 1,00 0,025 19,00 21,00 33,00 37,00 9,00 10,50     0,15 balance,
Ti 1,0
Balance
0,00 1,00 0,025 19,00 21,00 33,00 37,00 9,00 10,50     0,15
MP35N R30035 Co, Ti
1,00
Elgiloy R30003 balance 0,150 19,00 21,00 15,00 16,00 6,00 8,00
...

SLOVENSKI STANDARD
SIST EN ISO 13628-1:2006/A1:2014
01-marec-2014
,QGXVWULMD]DSUHGHODYRQDIWHLQ]HPHOMVNHJDSOLQD1DþUWRYDQMHLQXSUDYOMDQMH
SURL]YRGQMHYSRGPRUVNLKVLVWHPLKGHO6SORãQH]DKWHYHLQSULSRURþLOD
'RSROQLOR3RSUDYOMHQDWRþND,62$PG
Petroleum and natural gas industries - Design and operation of subsea production
systems - Part 1: General requirements and recommendations - Amendment 1: Revised
Clause 6 (ISO 13628-1:2005/Amd 1:2010)
Erdöl- und Erdgasindustrie - Auslegung und Betrieb von Unterwasser-
Produktionssystemen - Teil 1: Allgemeine Anforderungen und Empfehlungen - Änderung
A1: Überarbeitung Abschnitt 6 (ISO 13628-1:2005/Amd 1:2010)
Industries du pétrole et du gaz naturel - Conception et exploitation des systèmes de
production immergés - Partie 1: Exigences générales et recommandations -
Amendement 1: Révision de l'Article 6 (ISO 13628-1:2005/Amd 1:2010)
Ta slovenski standard je istoveten z: EN ISO 13628-1:2005/A1:2010
ICS:
75.180.10 Oprema za raziskovanje in Exploratory and extraction
odkopavanje equipment
SIST EN ISO 13628-1:2006/A1:2014 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------

SIST EN ISO 13628-1:2006/A1:2014

---------------------- Page: 2 ----------------------

SIST EN ISO 13628-1:2006/A1:2014


EUROPEAN STANDARD
EN ISO 13628-1:2005/A1

NORME EUROPÉENNE

EUROPÄISCHE NORM
August 2010
ICS 75.180.10
English Version
Petroleum and natural gas industries - Design and operation of
subsea production systems - Part 1: General requirements and
recommendations - Amendment 1: Revised Clause 6 (ISO
13628-1:2005/Amd 1:2010)
Industries du pétrole et du gaz naturel - Conception et Erdöl- und Erdgasindustrie - Auslegung und Betrieb von
exploitation des systèmes de production immergés - Partie
Unterwasser-Produktionssystemen - Teil 1: Allgemeine
1: Exigences générales et recommandations - Anforderungen und Empfehlungen - Änderung A1:
Amendement 1: Révision de l'Article 6 (ISO 13628- Überarbeitung Abschnitt 6 (ISO 13628-1:2005/Amd 1:2010)
1:2005/Amd 1:2010)
This amendment A1 modifies the European Standard EN ISO 13628-1:2005; it was approved by CEN on 2 July 2010.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for inclusion of this
amendment into the relevant national standard without any alteration. Up-to-date lists and bibliographical references concerning such
national standards may be obtained on application to the CEN Management Centre or to any CEN member.

This amendment 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 CEN Management Centre has the same status as the official
versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.






EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2010 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 13628-1:2005/A1:2010: E
worldwide for CEN national Members.

---------------------- Page: 3 ----------------------

SIST EN ISO 13628-1:2006/A1:2014
EN ISO 13628-1:2005/A1:2010 (E)
Contents Page
Foreword .3

2

---------------------- Page: 4 ----------------------

SIST EN ISO 13628-1:2006/A1:2014
EN ISO 13628-1:2005/A1:2010 (E)
Foreword
This document (EN ISO 13628-1:2005/A1:2010) has been prepared by Technical Committee ISO/TC 67
"Materials, equipment and offshore structures for petroleum, petrochemical and natural gas industries" in
collaboration with Technical Committee CEN/TC 12 “Materials, equipment and offshore structures for
petroleum, petrochemical and natural gas industries” the secretariat of which is held by AFNOR.
This Amendment to the European Standard EN ISO 13628-1:2005 shall be given the status of a national
standard, either by publication of an identical text or by endorsement, at the latest by February 2011, and
conflicting national standards shall be withdrawn at the latest by February 2011.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
Endorsement notice
The text of ISO 13628-1:2005/Amd 1:2010 has been approved by CEN as a EN ISO 13628-1:2005/A1:2010
without any modification.

3

---------------------- Page: 5 ----------------------

SIST EN ISO 13628-1:2006/A1:2014

---------------------- Page: 6 ----------------------

SIST EN ISO 13628-1:2006/A1:2014

INTERNATIONAL ISO
STANDARD 13628-1
Second edition
2005-11-15
AMENDMENT 1
2010-08-15
Petroleum and natural gas industries —
Design and operation of subsea
production systems —
Part 1:
General requirements
and recommendations
AMENDMENT 1: Revised Clause 6
Industries du pétrole et du gaz naturel — Conception et exploitation
des systèmes de production immergés —
Partie 1: Exigences générales et recommandations
AMENDEMENT 1: Révision de l'Article 6





Reference number
ISO 13628-1:2005/Amd.1:2010(E)
©
ISO 2010

---------------------- Page: 7 ----------------------

SIST EN ISO 13628-1:2006/A1:2014
ISO 13628-1:2005/Amd.1:2010(E)
PDF disclaimer
This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but
shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In
downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat
accepts no liability in this area.
Adobe is a trademark of Adobe Systems Incorporated.
Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation
parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In
the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below.


COPYRIGHT PROTECTED DOCUMENT


©  ISO 2010
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or
ISO's member body in the country of the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail [e-mail]
Web www.iso.org
Published in Switzerland

ii © ISO 2010 – All rights reserved

---------------------- Page: 8 ----------------------

SIST EN ISO 13628-1:2006/A1:2014
ISO 13628-1:2005/Amd.1:2010(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
Amendment 1 to ISO 13628-1:2005 was prepared by Technical Committee ISO/TC 67, Materials, equipment
and offshore structures for petroleum, petrochemical and natural gas industries, Subcommittee SC 4, Drilling
and production equipment. The changes are made mainly to Clause 6, which has been amended with a
revised set of provisions that includes the general material design requirements and recommendations
applicable to the complete subsea production system.
© ISO 2010 – All rights reserved iii

---------------------- Page: 9 ----------------------

SIST EN ISO 13628-1:2006/A1:2014
ISO 13628-1:2005/Amd.1:2010(E)
Introduction
This amendment is based on ISO 13628-1:2005, Clause 6; EEMUA Publication 194:2004; several NORSOK
standards and many oil company and supplier material specifications.
This revised Clause 6 does not include detailed material requirements and recommendations, e.g. for
manufacturing and testing. Such information is included in the product-specific parts of this part of ISO 13628.
It is intended that there not be any duplication of this part of ISO 13628 with the other parts of ISO 13628,
whereas there can be overlap of material requirements between product-specific parts. In case of conflict
between this part of ISO 13628 and product specific parts, it is intended that the latter take precedence.

iv © ISO 2010 – All rights reserved

---------------------- Page: 10 ----------------------

SIST EN ISO 13628-1:2006/A1:2014
ISO 13628-1:2005/Amd.1:2010(E)

Petroleum and natural gas industries — Design and operation
of subsea production systems —
Part 1:
General requirements and recommendations
AMENDMENT 1: Revised Clause 6
Page iii, Contents:
Replace the list of subclauses for Clause 6 with the following.
6 Materials and corrosion protection
6.1 General principals
6.2 Corrosivity evaluation
6.3 Corrosion control
6.4 Materials selection
6.5 Mechanical properties and material usage limitations
Page 1, Clause 2:
Add the following normative references:
ISO 8501-1, Preparation of steel substrates before application of paints and related products — Visual
assessment of surface cleanliness — Part 1: Rust grades and preparation grades of uncoated steel
substrates and of steel substrates after overall removal of previous coatings. Informative supplement to part 1:
Representative photographic examples of the change of appearance imparted to steel when blast-cleaned
with different abrasives
ISO 8503 (all parts), Preparation of steel substrates before application of paints and related products —
Surface roughness characteristics of blast-cleaned steel substrates
ISO 9588, Metallic and other inorganic coatings — Post-coating treatments of iron or steel to reduce the risk
of hydrogen embrittlement
ISO 12944 (all parts), Paints and varnishes — Corrosion protection of steel structures by protective paint
systems
1)
ISO 15156 (all parts) , Petroleum and natural gas industries — Materials for use in H S-containing
2
environments in oil and gas production

[41]
1) ISO 15156 (all parts) was adopted by NACE as NACE MR0175/ISO 15156 .
© ISO 2010 – All rights reserved 1

---------------------- Page: 11 ----------------------

SIST EN ISO 13628-1:2006/A1:2014
ISO 13628-1:2005/Amd.1:2010(E)
ISO 23936-1, Petroleum, petrochemical and natural gas industries — Non-metallic materials in contact with
media related to oil and gas production — Part 1: Thermoplastics
Page 3, 3.1:
Add the following terms and definitions after 3.1.12.
3.1.13
carbon steel
alloy of carbon and iron containing up to 2 % mass fraction carbon, up to 1,65 % mass fraction manganese
and residual quantities of other elements, except those intentionally added in specific quantities for
deoxidation (usually silicon and/or aluminium)
NOTE Carbon steels used in the petroleum industry usually contain less than 0,8 % mass fraction carbon.
[ISO 15156-1:2009, 3.3]
3.1.14
corrosion-resistant alloys
CRAs
alloys that are intended to be resistant to general and localized corrosion in oilfield environments that are
corrosive to carbon steels
NOTE This definition is in accordance with ISO 15156-1 and is intended to include materials such as stainless steels
with minimum 11,5 % mass fraction Cr, and nickel, cobalt and titanium base alloys. Other ISO documents can have other
definitions.
3.1.15
low-alloy steel
steels containing a total alloying element content of less than 5 % mass fraction, but more than that for carbon
steel
[12]
EXAMPLES AISI 4130, AISI 8630, ASTM A182 Grade F22 are examples of low alloy steels.
3.1.16
pitting resistance equivalent number
PREN
number developed to reflect and predict the pitting resistance of a stainless steel, based on the proportions of
Cr, Mo, W and N in the chemical composition of the alloy
NOTE This number is based on observed resistance to pitting of CRAs in the presence of chlorides and oxygen, e.g.
seawater, and is not directly indicative of the resistance to produced oil and gas environments.
F = w + 3,3(w + 0,5w ) + 16w
PREW Cr Mo W N
where
w is the mass fraction of chromium in the alloy, expressed as a percentage of the total composition;
Cr
w is the mass fraction of molybdenum in the alloy, expressed as a percentage of the total composition;
Mo
w is the mass fraction of tungsten in the alloy, expressed as a percentage of the total composition;
W
w is the mass fraction of nitrogen in the alloy, expressed as a percentage of the total composition.
N
3.1.17
sour service
service in an H S-containing (sour) fluid
2
NOTE In this part of ISO 13628, “sour service” refers to conditions where the H S content is such that restrictions as
2
specified by ISO 15156 (all parts) apply.
2 © ISO 2010 – All rights reserved

---------------------- Page: 12 ----------------------

SIST EN ISO 13628-1:2006/A1:2014
ISO 13628-1:2005/Amd.1:2010(E)
3.1.18
sweet service
service in an H S-free (sweet) fluid
2
3.1.19
type 316
austenitic stainless steel alloys of type UNS S31600/S31603
3.1.20
type 6Mo
austenitic stainless steel alloys with PREN W 40 and Mo alloying W 6,0 % mass fraction, and nickel alloys with
Mo content in the range 6 % mass fraction to 8 % mass fraction
EXAMPLES UNS S31254, N08367 and N08926 alloys.
3.1.21
type 22Cr duplex
ferritic/austenitic stainless steel alloys with 30 u PREN u 40 and Mo u 2,0 % mass fraction
EXAMPLES UNS S31803 and S32205 steels.
3.1.22
type 25Cr duplex
ferritic/austenitic stainless steel alloys with 40 u PREN u 45
EXAMPLES UNS S32750 and S32760 steels.
Page 3, 3.2:
Add the following abbreviated terms.
CRA corrosion-resistant alloy
HB Brinell hardness
HIC hydrogen induced cracking
HRC Rockwell hardness C scale
MIC microbiologically influenced corrosion
SWC stepwise cracking
Page 42:
Replace Clause 6 with the following.
6 Materials selection and corrosion protection
6.1 General principles
The materials selection process shall take into account all statutory and regulatory requirements. The project
design criteria (e.g. design lifetime, inspection and maintenance philosophy, safety and environmental profiles,
operational reliability and specific project requirements), should be considered.
Robust materials selection should be made to ensure operation reliability throughout the design life as the
access for the purposes of maintenance and repair is limited and costly.
© ISO 2010 – All rights reserved 3

---------------------- Page: 13 ----------------------

SIST EN ISO 13628-1:2006/A1:2014
ISO 13628-1:2005/Amd.1:2010(E)
Materials selection should be based on an evaluation of corrosion and erosion as described within this clause.
All internal and external media should be considered for the entire design life. Degradation mechanisms not
specially covered in this part of ISO 13628 (e.g. fatigue, corrosion-fatigue, wear and galling), should be
considered for relevant components and conditions.
Mechanical properties and usage limitations for different material grades shall comply with applicable design
code requirements and guidelines given in 6.5. The material weldability should also be considered to avoid
fabrication defects.
Cost and material availability have a significant influence on materials selection, and evaluations should be
made to support the final selection.
[43]
NOTE If life-cycle cost evaluations are considered appropriate, then the methodology described in ISO 15663-2 can
be helpful.
The end user shall specify how to implement the requirements and guidelines of Clause 6, and specify the
design conditions. The scope of work in relevant contracts defines the responsible party for materials selection
for the facility and/or equipment. Alternatives to the requirements in Clause 6 may be utilized when agreed
between the user/purchaser and the supplier/manufacturer to suit specific field requirements. The intention is
to facilitate and complement the material selection process rather than to replace individual engineering
judgment and, where requirements are non-mandatory, to provide positive guidance for the selection of an
optimal solution.
Similarly, the normative references in this part of ISO 13628 may be replaced by other recognized equivalent
standards when agreed between the user/purchaser and the supplier/manufacturer.
Some common oilfield alloys are described in Table 1. This is, however, not meant to be an all-inclusive list
and other alloys may be used.
6.2 Corrosivity evaluation
6.2.1 Design premise
The corrosivity evaluation shall consider all media exposed to the system components including the stages of
transportation, storage, installation, testing and preservation. This typically includes
⎯ seawater,
⎯ produced fluids,
⎯ drilling and completion fluids,
⎯ hydraulic control fluid,
⎯ chemicals such as inhibitors, well stimulation fluids, etc.
It is recommended that a compatibility matrix be developed showing to which media all components are
exposed.
6.2.2 Internal corrosion
6.2.2.1 Hydrocarbon systems
A corrosion evaluation should be carried out to determine the general corrosivity of the internal fluids for the
materials under consideration.
4 © ISO 2010 – All rights reserved

---------------------- Page: 14 ----------------------

SIST EN ISO 13628-1:2006/A1:2014
ISO 13628-1:2005/Amd.1:2010(E)
The corrosion evaluation should be based on a corrosion prediction model, or on relevant test or field
corrosion data agreed with the end user. General and localized corrosion of carbon steel takes place over
time, and the anticipated corrosion rate should be calculated for the operating conditions.
For wet hydrocarbon systems made of carbon and low-alloy steel or CRA, the corrosion mechanisms
indicated in Table 1 should be evaluated. Details on mechanisms and parameters for consideration are given
[38]
in ISO 21457 .
Table 1 — Materials prone to corrosion mechanisms in hydrocarbon systems
Corrosion mechanism Carbon and low-alloy ste
...