SIST EN ISO 13628-1:2006/oprA2:2009

Petroleum and natural gas industries - Design and operation of subsea production systems - Part 1: General requirements and recommendations - Amendment 2: Revised Annex L (ISO 13628-1:2005/DAM 2:2008)

2009-11-13 EMA: WI deleted at ISO.

Erdöl- und Erdgasindustrie - Auslegung und Betrieb von Unterwasser-Produktionssystemen - Teil 1: Allgemeine Anforderungen und Empfehlungen (ISO 13628-1:2005/DAM 2:2008)

Industries du pétrole et du gaz naturel - Conception et exploitation des systèmes de production immergés - Partie 1: Exigences générales et recommandations - Amendement 2: Ajout de l'Annexe L (ISO 13628-1:2005/DAM 2:2008)

Industrija za predelavo nafte in zemeljskega plina - Načrtovanje in upravljanje proizvodnje v podmorskih sistemih - 1. del: Splošne zahteve in priporočila - Dopolnilo 2: Popravljen dodatek L (ISO 13628-1:2005/DAM 2:2008)

General Information

• Status: Not Published
• Public Enquiry End Date: 29-Feb-2008
• ICS: 75.180.10 - Exploratory, drilling and extraction equipment
• Technical Committee: I13 - Imaginarni 13
• Current Stage: 98 - Abandoned project (Adopted Project)
• Start Date: 10-Jan-2020
• Due Date: 15-Jan-2020
• Completion Date: 10-Jan-2020
• Ref Project: EN ISO 13628-1:2005/prA2 - Petroleum and natural gas industries - Design and operation of subsea production systems - Part 1: General requirements and recommendations - Amendment 2: Revised Annex L (ISO 13628-1:2005/DAM 2:2008)

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-Feb-2008

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 13628-1:2006/oprA2:2008
01-februar-2008
,QGXVWULMD]DSUHGHODYRQDIWHLQ]HPHOMVNHJDSOLQD1DþUWRYDQMHLQXSUDYOMDQMH
SURL]YRGQMHYSRGPRUVNLKVLVWHPLKGHO6SORãQH]DKWHYHLQSULSRURþLOD
'RSROQLOR3RSUDYOMHQGRGDWHN/,62'$0
Petroleum and natural gas industries - Design and operation of subsea production
systems - Part 1: General requirements and recommendations - Amendment 2: Revised
Annex L (ISO 13628-1:2005/DAM 2:2007)
Industries du pétrole et du gaz naturel - Conception et exploitation des systemes de
production immergés - Partie 1: Exigences générales et recommandations -
Amendement 2: Révision de l'Annexe L (ISO 13628-1:2005/DAM 2:2007)
Ta slovenski standard je istoveten z: EN ISO 13628-1:2005/prA2
ICS:
75.180.10
SIST EN ISO 13628-1:2006/oprA2:2008 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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EUROPEAN STANDARD
DRAFT
EN ISO 13628-1:2005
NORME EUROPÉENNE
EUROPÄISCHE NORM
prA2
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 2: Revised Annex L (ISO
13628-1:2005/DAM 2:2007)
Industries du pétrole et du gaz naturel - Conception et
exploitation des systèmes de production immergés - Partie
1: Exigences générales et recommandations -
Amendement 2: Révision de l'Annexe L (ISO 13628-
1:2005/DAM 2:2007)
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 A2, 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/prA2:2007: E
worldwide for CEN national Members.

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EN ISO 13628-1:2005/prA2:2007 (E)
Contents Page
Foreword.3

2

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EN ISO 13628-1:2005/prA2:2007 (E)
Foreword
This document (EN ISO 13628-1:2005/prA2:2007) 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/prA2:2007
without any modification.

3

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DRAFT AMENDMENT ISO 13628-1:2005/DAmd 2
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 2: Revised Annex L
Industries du pétrole et du gaz naturel — Conception et exploitation des systèmes de production immergés —
Partie 1: Exigences générales et recommandations
AMENDEMENT 2: Révision de l’Annexe L
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

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ISO 13628-1:2005/DAmd 2
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ii ISO 2007 – All rights reserved

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ISO 13628-1:2005/CD Amd 2
Contents Page
Foreword .iv
Annex L (informative) Materials and welding of manifold piping and jumpers .5
L.1 General.5
L.2 Material standards and testing requirements.5
L.2.1 General.5
L.2.2 Pipe and pipe-fittings.5
L.2.3 Forged components.7
L.2.4 Chemical composition and weldability.7
L.2.5 Test sampling of base materials.8
L.2.6 Mechanical and corrosion testing of base materials .8
L.2.7 Non-destructive inspection of components.10
L.3 Bolting and gasket materials .11
L.4 Bending and other forming operations .12
L.4.1 General.12
L.4.2 Cold forming.12
L.4.3 Hot induction bending.12
L.5 Overlay welding and buttering of components .14
L.5.1 General.14
L.5.2 Corrosion resistant overlay.14
L.5.3 Weld buttering.14
L.6 Welding and non-destructive testing of piping systems .15
L.6.1 Welding qualification requirements.15
L.7 Inspection and non-destructive testing of welds (NDT).21
L.8 Repair.22

© ISO 2007 – All rights reserved iii

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ISO 13628-1:2005/CD Amd 2
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 2 to ISO 136281-1:2005 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

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ISO 13628-1:2005/CD Amd 2


Petroleum and natural gas industries — Design and operation
of subsea production systems —
Part 1:
General requirements and recommendations
AMENDMENT 2: Revised Annex L
Page 1, Clause 2, add the following normative references
ISO 3183, Petroleum and natural gas industries — Steel pipe for pipelines — Technical delivery conditions
Pipes of requirement class C
ISO 3834, Quality requirements for fusion welding of metallic materials — Part 2: Comprehensive quality
requirements
ISO 9606, Approval testing of welders — Fusion welding
ISO 9712, Non-destructive testing — Qualification and certification of personnel
ISO 10423, Specification for wellhead and christmas tree equipment
ISO 10474, Metallic products — Types of inspection documents
ISO 15156, Petroleum and natural gas industries — Materials for use in H S-containing environments in oil
2
and gas production
ISO 15590, Petroleum and natural gas industries — Part 1: Induction bends
ISO 15609, Specification and qualification of welding procedures for metallic materials — Welding procedure
specification
ISO 15614-1, Specification and qualification of welding procedures for metallic materials — Welding
procedure test — Part 1: Arc and gas welding of steels and arc welding of nickel and nickel alloys
API 5L, Specification for line pipe
API 6A/ISO 10423, Specification for Wellhead and Christmas Tree Equipment
ASNT TC 1A, Recommended Practice, Personnel Qualification and Certification in Nondestructive Testing
ASTM A182, Forged and rolled alloy-steel pipe flanges, forged fittings and valves and parts for high
temperature service
ASTM A 312, Seamless, Welded and Heavily Cold Worked Austenitic Stainless Steel Pipes
ASTM A 333, Seamless and Welded Steel Pipe for Low–Temperature Service
ASTM A 350, Carbon and Low-Alloyed Steel Forgings, Requiring Notch Toughness Testing for Piping
Components
ASTM A 358, Electric-Fusion-Welded Austenitic Chromium-Nickel Alloy Steel Pipe for High Temperature
Service and General Applications
ASTM A 388, Ultrasonic Examination of Heavy Steel Forgings
© ISO 2007 – All rights reserved 1

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ISO 13628-1:2005/CD Amd 2
ASTM A 403, Wrought Austenitic Stainless Steel Piping Fittings
ASTM A 420, Piping Fittings of Wrought Carbon Steel and Alloy Steel for Low Temperature Service
ASTM A 694, Carbon and Alloy Steel Forgings for Pipe Flanges, Fittings, Valves and Parts for High–Pressure
Transmission Service
ASTM A 707, Forged Carbon and Alloy Steel Flanges For Low-Temperature Service
ASTM A 790, Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe
ASTM A 815, Wrought Ferritic, Ferritic/Austenitic, and Martensitic Stainless Steel Piping Fittings
ASTM A 860, Wrought High-Strength Low-Alloy Steel Butt-Welding Fittings
ASTM A 928, Ferritic/Austenitic (Duplex) Stainless Steel Pipe Electric Fusion Welded With Addition of Filler
Metal
ASTM A 988, Hot Isostatically–Pressed Stainless Steel Flanges, Fittings, Valves, and Parts for High–
Temperature Service
ASTM B 366, Factory-Made Wrought Nickel and Nickel Alloy Fittings
ASTM B 564, Nickel Alloy Forgings
ASTM B 705, Nickel-Alloy (UNS N06625, N06219 and N08825) Welded Pipe
ASTM E 562, Determining Volume Fraction by Systematic Manual Point Count
ASTM G 48, Pitting and Crevice Corrosion Resistance of Stainless Steels and Related Alloys by Use of Ferric
Chloride Solution
ASME II, Part C, BPVC SECTION II Materials
ASME V, BPVC SECTION V Nondestructive Examination
ASME IX, BPVC SECTION IX Welding and Brazing Qualifications
ASME VIII, Div. 1, Appendix 6 & 8: BPVC SECTION VIII Rules for Construction of Pressure Vessels Div. 1
EN 287-1, Qualification test of welders — Part 1. Steels
EN 473, Non-destructive testing — Qualification and certification of NDT personnel — General principles
EN 970, Non-destructive examination of fusion welds — Visual examination
EN 1418, Welding personnel approval testing of welding operators for fusion welding and resistance weld
setters for fully mechanized and automatic welding of metallic materials
EN 10204, Metallic products — Types of inspection documents
EN 10216-3, Seamless steel tubes for pressure purposes — Technical delivery conditions, Part 3: Non-alloy
and alloy fine grain steel tubes
EN 10216-5, Seamless steel tubes for pressure purposes — Technical delivery conditions, Part 5: Stainless
steel tubes
EN 10217-3, Welded steel tubes for pressure purposes — Technical delivery conditions, Part 3: Alloy fine
grain steel tubes
2 © ISO 2007 – All rights reserved

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ISO 13628-1:2005/CD Amd 2
EN 10217-7, Welded steel tubes for pressure purposes — Technical delivery conditions, Part 3: Stainless
steel tubes
EN 10222-4, Steel forgings for pressure purposes — Part 4: Weldable fine-grain steels with high proof
strength
EN 10222-5, Steel forgings for pressure purposes — Part 5: Martensitic, austenitic and austenitic-ferritic
stainless steels
EN 10228-2, Non-destructive testing of steel forgings — Part 2: Penetrant testing
EN 10228-3, Non-destructive testing of steel forgings — Part 3: Ultrasonic testing of ferritic or martensitic steel
forgings
EN 10228-4, Non-destructive testing of steel forgings — Part 4: Ultrasonic testing of austenitic and austenitic–
ferritic stainless steel forgings
DNV OS F-101, Submarine pipeline systems
Page 2, Clause 3, add the following Terms and definitions
carbon steel
generic term to designate the full range of carbon and carbon-manganese steels used in the construction of
conventional oilfield equipment
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
low alloy steel
steels containing between 1 % and less than 5 % of elements deliberately added for the purpose of modifying
properties
Page 3, 3.2, add the following Abbreviated terms
ASNT American Society of Non-destructive Testing
DAC distance amplitude curve
FBH flat bottom hole
FL  fusion line
HAZ heat affected zone
LP  liquid penetrant
MDT minimum design temperature
NA  not applicable
NDT non destructive testing
ppm  parts per million (1/1 000 000)
PWHT post weld heat treatment
SMYS specified minimum yield stress
© ISO 2007 – All rights reserved 3

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ISO 13628-1:2005/CD Amd 2
UT  ultrasonic testing
WM  weld metal
WPS welding procedure specification
WPQR weld procedure qualification record
Page 231, add the following Informative Annex
4 © ISO 2007 – All rights reserved

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ISO 13628-1:2005/CD Amd 2
Annex L
(informative)

Materials and welding of manifold piping and jumpers
L.1 General
This Annex L is informative; however users may, by agreement between the interested parties, consider the
provisions to be either requirements or guidelines.
This informative Annex specifies the requirements and guidelines for subsea pressure-containing components
and pipe assemblies for production of hydrocarbons and water/gas well-injection service, e.g. manifolds,
jumpers and flow loops, fabricated in carbon, low-alloyed and stainless steels, and nickel based alloys. It
includes all interfacing welds between manifolds and connecting components such as valves and connectors
but excludes such items as valves, hubs, flexible pipes, control systems and support structures as templates
covered by other standards.
It is based on using ASME B31.8 as the governing design code and gives additional requirements and
guidelines to that code. For installation where a different design code from ASME B31.3 applies the
requirement of that different code shall govern unless this is less stringent than required by this Annex.
There are no specified pressure limitations for the application of this Annex.
L.2 Material standards and testing requirements
L.2.1 General
All materials selections shall be in accordance with the requirements given in ISO 13628 Part 1 Amendment 1
Clause 6.
For valves and connectors designed to ISO 10423, the material requirements in that standard apply.
The pressure containing parts of the manifold structure should be formed from carbon, low alloyed, stainless
steel or Nickel alloy as listed in L.2.2 and L.2.3 below.
A detailed material specification for each type of product shall be established. This specification shall clearly
identify all manufacturing and testing requirements.
All components shall be delivered with a material certificate according to ISO 10474/EN 10204 Type 3.1
confirming all requirements of relevant component standard and additional requirements of this standard.
All materials for pipe, forgings and fittings shall be manufactured and used in accordance with the listed
product specifications of the design standard and this standard. Use of other product standard has to be
agreed and approved by the end user.
The requirements in the following clauses shall be in addition to or replace the corresponding requirements in
the reference standards as relevant.
L.2.2 Pipe and pipe-fittings
The pipes and pipe-fittings shall either be manufactured by a seamless process hot working steel to form a
tubular product without a welded seam, or longitudinal arc welded with process adding filler material.
© ISO 2007 – All rights reserved 5

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ISO 13628-1:2005/CD Amd 2
Carbon and low alloy steel pipe and fittings shall conform to an appropriate reference standard suitable for the
purpose of the application, e.g. Table L.1. The material grade should be limited upwards to 560 MPa minimum
specified yield strength. The delivery condition of pipes may be in normalized, thermo-mechanically treated or
quenched and tempered condition. All fittings shall be delivered in normalised, normalised and tempered,
annealed or quenched and tempered condition. Welded pipes shall conform to the requirements of Clause L.6.
For welded pipes and fittings the PQR/WPQR shall be qualified in accordance with ASME IX or ISO 15614-1,
and comply with the base material requirements. All welding shall be carried out by welders qualified in
accordance with ISO 9606, ASME IX or EN 287.

Table L.1 — Reference standards for seamless and welded manifold pipe
and pipe-fittings in carbon and low alloy steel
Standard Manufacturing process Standard Manufacturing process
API 5L PSL2 Seamless and welded ASTM A 420 Seamless and welded fittings
DNV OS-F101 Seamless and welded ASTM A 860 Seamless and welded fittings
ISO 3183 Seamless and welded ASTM A 333 Seamless
EN 10216-3 Seamless EN 10217-3 Welded

Stainless steel alloy pipe shall conform to an appropriate reference standard suitable for the purpose of the
application, e.g. Table L.2.
Table L.2 — Reference standards for seamless and welded manifold pipe
and pipe-fittings in stainless steel alloy
Standard Manufacturing Process Standard Manufacturing Process
ASTM A 312 Seamless EN 10216-5 Seamless
ASTM A 358 Welded EN 10217-7 Welded
ASTM A 790 Seamless ASTM A 403 Seamless and welded fittings
ASTM A 928 Welded ASTM A 815 Seamless and welded fittings
ASTM B 705 Seamless and welded pipe ASTM B 366 Seamless and welded fittings

The following stainless steels and nickel alloys, solid or clad, are applicable to manifold piping:
• type 316, 6 Mo and other high-alloyed stainless steel austenitic grades;
• type 22 or 25 Cr duplex;
• nickel based alloys, e.g. N06625 and N08825.
For clad pipe, the carbon steel pipe shall conform to an appropriate reference standard suitable for the
purpose of the application, e.g. Table L.1.
6 © ISO 2007 – All rights reserved

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ISO 13628-1:2005/CD Amd 2
L.2.3 Forged components
Forgings for pressure-containing components shall conform to an appropriate reference standard suitable for
the purpose of the application, e.g. Table L.3.
Table L.3 — Material standards for forged pressure-containing components
Material type ASTM Standard EN Standard ISO Standard
10423 PSL 3
Carbon or low alloyed steel A 182, A 350, A 694, A 707 EN 10222-4
22/25 Cr Duplex A 182 EN 10222-5 15990-3
Austenitic stainless steel A 182 EN 10222-5
Nickel alloys B 564

In addition to the requirement listed in Table L.3 all components shall be heat treated in or as close to near net
shape as practicable.
The hot isostatic pressed (HIP) process is an acceptable alternative to forging according to ASTM A 988.
L.2.4 Chemical composition and weldability
The material shall have a weldability suitable for all stages of component manufacture, fabrication and
installation. The following additional requirements shall apply to carbon and stainless steel grades.
• Carbon and low alloyed steels intended for sour/non sour-service shall have the following limitations in
sulphurous content in accordance with Table L.4.
Table L.4 — Limitations in sulfurous content
Type of product Non–sour service Sour service
Rolled products S < 0,025 % S ≤ 0,003 %
Seamless pipe S < 0,025 % S ≤ 0,010 %
Forged products S < 0,025 % S < 0,025 %

• For carbon and low-alloyed steels, heat treated by the quench and tempering or normalization and
tempering process and subjected to PWHT during fabrication, the selected minimum tempering
temperature shall be sufficiently high to allow PWHT and still meet the minimum specified mechanical
properties.
• The nitrogen content of UNS S31803 shall be in the range 0,14 % to 0,20 %.
The susceptibility of carbon and low alloyed steel to hydrogen cracking in heat affected zone shall be
controlled by limiting the allowable value of the carbon equivalent of the steel material or performing post weld
heat treatment to meet the maximum hardness value of ISO 13628-1 Amendment 1 Clause 6 Table 2 and
with sour service requirements specified by ISO 15156.
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ISO 13628-1:2005/CD Amd 2
L.2.5 Test sampling of base materials
L.2.5.1 General
The test sample for production testing shall realistically reflect the properties in the product and shall be taken
according to the selected pipe, fitting or forged component standards listed in Tables L.1 to L.3.
The tensile test specimens shall be taken in the longitudinal or transverse direction to the primary wrought
direction.
The impact test specimens shall be taken in the transverse direction to the primary wrought direction except
for components with outside diameter less than 160 mm.
A test lot shall be defined as the pipe/fitting of same size, manufactured according to the same method, from
the same heat of steel and from the same quality heat treatment load or for pipes per each 100 pipes,
whatever gives the highest frequency.
L.2.5.2 Test sampling of forgings
A test lot is defined as components of the same type manufactured according to the same manufacturing
method, from the same heat of steel and heat treatment lot and shall not exceed 6 000 kg in weight.
The test sample shall be selected from the component having the heaviest wall thickness within the lot.
The test sample shall be taken from a sacrificial component or from a prolongation at one of the following
positions:
• the welding end, at mid-wall and at least 50 mm from the end face;
• the heaviest cross-section, T, of a product, at least T/4 below the surface and at least T or 100 mm,
whichever is less, from any second heat treated surface.
Separate test blocks are acceptable if agreed with end user.
For hot isostatically pressed (HIP) manufact
...