EN ISO 11970:2016
(Main)Specification and qualification of welding procedures for production welding of steel castings (ISO 11970:2016)
Specification and qualification of welding procedures for production welding of steel castings (ISO 11970:2016)
ISO 11970:2016 specifies how a welding procedure specification (WPS) for production welding of steel castings is qualified.
It defines the conditions for the execution of welding procedure qualification tests and the limits of validity of a qualified welding procedure for all practical welding operations within the range of essential variables.
Tests are intended to be carried out in accordance with this International Standard unless additional tests are specified by the purchaser or by agreement between the contracting parties.
ISO 11970:2016 applies to the arc welding of steel castings. The principles of this International Standard can be applied to other fusion welding processes subject to agreement between the contracting parties.
In the case of specific service, material or manufacturing conditions, tests more comprehensive than those specified by this International Standard can be specified by the purchaser, in order to gain more information, e.g. longitudinal weld tensile tests, bend tests, chemical analyses, ferrite determination in austenitic stainless steels, elongation, Charpy "V" impact tests, and radiography.
Anforderungen und Anerkennung von Schweißverfahren für das Produktionsschweißen von Stahlguss (ISO 11970:2016)
Diese Internationale Norm legt fest, wie die Schweißanweisung (en: welding procedure specification ,= WPS) für Produktionsschweißungen von Stahlguss anerkannt wird.
Es werden Bedingungen für die Durchführung der Anerkennung von Verfahrensprüfungen und die Grenzen der Gültigkeit eines anerkannten Schweißverfahrens für alle praktischen Schweißtätigkeiten im Bereich der grundlegenden Einflussgrößen definiert.
Prüfungen sind in Übereinstimmung mit dieser Internationalen Norm durchzuführen, wenn nicht zusätzliche Prüfungen durch den Kunden oder durch Übereinkunft zwischen den Vertragsparteien festgelegt werden.
Diese Internationale Norm gilt für das Lichtbogenschweißen von Stahlguss. Die Prinzipien dieser Internationalen Norm dürfen auch auf andere Schmelzschweißverfahren angewendet werden, falls es eine entsprechende Übereinkunft zwischen den Vertragsparteien gibt.
Umfassendere Prüfungen, als sie in dieser Internationalen Norm aufgeführt sind, dürfen zur besseren Information des Kunden von diesem für bestimmte Einsatz , Werkstoff oder Herstellbedingungen verlangt werden, z. B. Längszugversuche an der Schweißnaht, Biegeversuche, chemische Analysen, Ferrit Bestimmung in austenitischen nichtrostenden Stählen, Dehnung, Charpy V Kerbschlagbiegeversuch, Durchstrahlung usw.
Descriptif et qualification de modes opératoires de soudage pour le soudage de production des aciers moulés (ISO 11970:2016)
ISO 11970:2016 spécifie comment qualifier un descriptif de mode opératoire de soudage (DMOS) pour le soudage de production des pièces en acier moulé.
Elle définit les conditions d'exécution des épreuves de qualification et les limites de validité d'un mode opératoire qualifié, pour toutes les opérations pratiques de soudage dans la limite de variation des paramètres essentiels considérés.
Les essais sont destinés à être effectués conformément à la présente Norme internationale, sauf si des essais complémentaires sont spécifiés par l'acheteur ou par accord entre les parties contractantes.
ISO 11970:2016 s'applique au soudage à l'arc des pièces en acier moulé. Les principes de la présente Norme internationale peuvent s'appliquer à d'autres procédés de soudage par fusion, sous réserve d'accord préalable entre les parties contractantes.
Dans le cas d'une utilisation, d'un matériau ou de conditions de fabrication spécifiques, des essais plus étendus que ceux spécifiés par la présente Norme internationale peuvent être demandés par l'acheteur, afin d'obtenir plus d'informations, par exemple essais de traction longitudinale dans la soudure, essais de pliage, analyses chimiques, détermination du taux de ferrite dans les aciers inoxydables austénitiques, allongement, essais de flexion par choc Charpy «V» et contrôles radiographiques.
Popis in odobritev varilnih postopkov za proizvodno varjenje jeklenih ulitkov (ISO 11970:2016)
Ta mednarodni standard določa, kako se specifikacija varilnega postopka kvalificira za proizvodno varjenje jeklenih ulitkov.
Določa pogoje za izvajanje preskusov za kvalificiranje varilnih postopkov in omejitve veljavnosti kvalificiranih varilnih postopkov za vse praktične postopke varjenja v obsegu osnovnih spremenljivk.
Preskusi se izvajajo v skladu s tem mednarodnim standardom, razen če dodatne preskuse opredeli kupec ali se o njih dogovorita pogodbeni strani.
Ta mednarodni standard se uporablja za obločno varjenje jeklenih ulitkov. Načela tega
mednarodnega standarda se lahko uporabljajo za druge postopke talilnega varjenja, odvisno od dogovora med pogodbenima stranema.
V primeru specifične storitve, materiala ali pogojev izdelave lahko kupec opredeli preskuse, ki so obširnejši od teh, navedenih v tem mednarodnem standardu, da se pridobi več informacij, npr. vzdolžni natezni preskusi zvarov, testi upogibnosti, kemične analize, ugotavljanje železa v avstenitnih nerjavnih jeklih, raztezek, udarni preskusi po Charpyju »V« in radiografija.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-oktober-2016
1DGRPHãþD
SIST EN ISO 11970:2007
Popis in odobritev varilnih postopkov za proizvodno varjenje jeklenih ulitkov (ISO
11970:2016)
Specification and approval of welding procedures for production welding of steel castings
(ISO 11970:2016)
Anforderungen und Anerkennung von Schweißverfahren für das Produktionsschweißen
von Stahlguss (ISO 11970:2016)
Descriptif et qualification d'un mode opératoire de soudage pour le soudage de
production des aciers moulés (ISO 11970:2016)
Ta slovenski standard je istoveten z: EN ISO 11970:2016
ICS:
25.160.10 Varilni postopki in varjenje Welding processes
77.140.80 Železni in jekleni ulitki Iron and steel castings
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN ISO 11970
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2016
EUROPÄISCHE NORM
ICS 25.160.10; 77.140.80 Supersedes EN ISO 11970:2007
English Version
Specification and qualification of welding procedures for
production welding of steel castings (ISO 11970:2016)
Descriptif et qualification de modes opératoires de Anforderungen und Anerkennung von
soudage pour le soudage de production des aciers Schweißverfahren für das Produktionsschweißen von
moulés (ISO 11970:2016) Stahlguss (ISO 11970:2016)
This European Standard was approved by CEN on 10 January 2016.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2016 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 11970:2016 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
This document (EN ISO 11970:2016) has been prepared by Technical Committee ISO/TC 17 " Steel" in
collaboration with Technical Committee ECISS/TC 111 “Steel castings and forgings” the secretariat of
which is held by AFNOR.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by September 2016, and conflicting national standards
shall be withdrawn at the latest by September 2016.
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.
This document supersedes EN ISO 11970:2007.
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, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 11970:2016 has been approved by CEN as EN ISO 11970:2016 without any modification.
INTERNATIONAL ISO
STANDARD 11970
Second edition
2016-03-01
Specification and qualification of
welding procedures for production
welding of steel castings
Descriptif et qualification de modes opératoires de soudage pour le
soudage de production des aciers moulés
Reference number
ISO 11970:2016(E)
©
ISO 2016
ISO 11970:2016(E)
© ISO 2016, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2016 – All rights reserved
ISO 11970:2016(E)
Contents Page
Foreword .v
Introduction .vi
1 Scope .1
2 Normative references .1
3 Terms and definitions . 2
4 Preliminary welding procedure specification (pWPS) . 2
5 Welding procedure qualification . 2
6 Test piece . 2
6.1 General . 2
6.2 Shape and dimensions of test piece . 2
6.3 Welding of sample . 3
7 Examination and testing .5
7.1 Extent of testing . 5
7.2 Location and cutting of test specimens . 5
7.3 Non-destructive testing . 5
7.4 Destructive test . 7
7.4.1 Transverse (to weld groove) tensile test . 7
7.4.2 Macro-examination . 7
7.4.3 Micro-examination . 7
7.4.4 Impact test . 7
7.4.5 Hardness test . 7
7.5 Qualification and retesting . 8
7.6 Welder qualification . 8
8 Range of qualification .8
8.1 General . 8
8.2 Related to the manufacturer . 8
8.3 Related to the material . 9
8.3.1 Parent metal — Grouping system for cast steel grades. 9
8.3.2 Parent metal thickness (range of qualification) .10
8.4 Common to all welding procedures .10
8.4.1 Welding process .10
8.4.2 Welding positions . . .10
8.4.3 Type of joint .10
8.4.4 Filler metal .10
8.4.5 Type of current .10
8.4.6 Heat input .10
8.4.7 Preheat temperature .11
8.4.8 Interpass temperature .11
8.4.9 Post-weld heat treatment .11
8.5 Specific to process .11
8.5.1 Processes 111 [manual metal arc welding (metal arc welding with
covered electrode); shielded metal arc welding] and 114 (self-shielded
tubular-cored arc welding). .11
8.5.2 Process 121 (submerged arc welding with one wire electrode).11
8.5.3 Processes 131 (metal-arc inert gas welding; MIG welding; gas metal arc
welding), 135 (metal active gas welding; MAG welding; gas metal arc
welding), 136 (tubular cored metal arc welding with active gas shield;
flux cored arc welding) and 138 (MAG welding with metal cored electrode) .11
8.5.4 Process 141 (Tungsten inert gas welding; TIG welding; gas tungsten
arc welding) .11
9 Welding procedure qualification record (WPQR) .11
ISO 11970:2016(E)
Annex A (informative) Record form (WPQR) welding procedure qualification — Test certificate .13
Annex B (normative) Details of weld test .14
Bibliography .16
iv © ISO 2016 – All rights reserved
ISO 11970:2016(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.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
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. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical
Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information
The committee responsible for this document is ISO/TC 17, Steel, Subcommittee SC 11, Steel castings.
This second edition cancels and replaces the first edition (ISO 11970:2001), which has been technically
revised. In particular, Figures 1, 2 and 3 have been redrawn to clarify labels.
ISO 11970:2016(E)
Introduction
All welding procedure qualifications for production welding of steel castings are intended to be in
accordance with this International Standard.
Previous procedure qualifications that conform to the range of qualification of Clause 8 are valid under
this International Standard.
Where additional tests have to be carried out to complete the qualification, it is only necessary to
perform the additional tests to the requirements of Clauses 6 and 7.
vi © ISO 2016 – All rights reserved
INTERNATIONAL STANDARD ISO 11970:2016(E)
Specification and qualification of welding procedures for
production welding of steel castings
1 Scope
This International Standard specifies how a welding procedure specification (WPS) for production
welding of steel castings is qualified.
It defines the conditions for the execution of welding procedure qualification tests and the limits of
validity of a qualified welding procedure for all practical welding operations within the range of
essential variables.
Tests are intended to be carried out in accordance with this International Standard unless additional
tests are specified by the purchaser or by agreement between the contracting parties.
This International Standard applies to the arc welding of steel castings. The principles of this
International Standard can be applied to other fusion welding processes subject to agreement between
the contracting parties.
In the case of specific service, material or manufacturing conditions, tests more comprehensive than
those specified by this International Standard can be specified by the purchaser, in order to gain more
information, e.g. longitudinal weld tensile tests, bend tests, chemical analyses, ferrite determination in
austenitic stainless steels, elongation, Charpy “V” impact tests, and radiography.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable to its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
ISO 148-1, Metallic materials — Charpy pendulum impact test — Part 1: Test method
ISO 857-1, Welding and allied processes — Vocabulary — Part 1: Metal welding processes
ISO 4136, Destructive tests on welds in metallic materials — Transverse tensile test
ISO 4969, Steel — Macroscopic examination by etching with strong mineral acids
ISO 4986, Steel castings — Magnetic particle inspection
ISO 4987, Steel castings — Liquid penetrant inspection
ISO 4992-1, Steel castings — Ultrasonic examination — Part 1: Steel castings for general purposes
ISO 4992-2, Steel castings — Ultrasonic examination — Part 2: Steel castings for highly stressed components
ISO 4993, Steel and iron castings – Radiographic inspection
ISO 5817, Welding — Fusion-welded joints in steel, nickel, titanium and their alloys (beam welding
excluded) — Quality levels for imperfections
ISO 6507-1, Metallic materials — Vickers hardness test — Part 1: Test method
ISO 6892-1, Metallic materials – Tensile testing – Part 1: Method of test at room temperature
ISO 9016, Destructive tests on welds in metallic materials — Impact tests — Test specimen location, notch
orientation and examination
ISO 11970:2016(E)
ISO 9606-1, Qualification testing of welders — Fusion welding — Part 1: Steels
ISO 15607, Specification and qualification of welding procedures for metallic materials — General rules
ISO 15612, Specification and qualification of welding procedures for metallic materials — Qualification by
adoption of a standard welding procedu
...
Frequently Asked Questions
EN ISO 11970:2016 is a standard published by the European Committee for Standardization (CEN). Its full title is "Specification and qualification of welding procedures for production welding of steel castings (ISO 11970:2016)". This standard covers: ISO 11970:2016 specifies how a welding procedure specification (WPS) for production welding of steel castings is qualified. It defines the conditions for the execution of welding procedure qualification tests and the limits of validity of a qualified welding procedure for all practical welding operations within the range of essential variables. Tests are intended to be carried out in accordance with this International Standard unless additional tests are specified by the purchaser or by agreement between the contracting parties. ISO 11970:2016 applies to the arc welding of steel castings. The principles of this International Standard can be applied to other fusion welding processes subject to agreement between the contracting parties. In the case of specific service, material or manufacturing conditions, tests more comprehensive than those specified by this International Standard can be specified by the purchaser, in order to gain more information, e.g. longitudinal weld tensile tests, bend tests, chemical analyses, ferrite determination in austenitic stainless steels, elongation, Charpy "V" impact tests, and radiography.
ISO 11970:2016 specifies how a welding procedure specification (WPS) for production welding of steel castings is qualified. It defines the conditions for the execution of welding procedure qualification tests and the limits of validity of a qualified welding procedure for all practical welding operations within the range of essential variables. Tests are intended to be carried out in accordance with this International Standard unless additional tests are specified by the purchaser or by agreement between the contracting parties. ISO 11970:2016 applies to the arc welding of steel castings. The principles of this International Standard can be applied to other fusion welding processes subject to agreement between the contracting parties. In the case of specific service, material or manufacturing conditions, tests more comprehensive than those specified by this International Standard can be specified by the purchaser, in order to gain more information, e.g. longitudinal weld tensile tests, bend tests, chemical analyses, ferrite determination in austenitic stainless steels, elongation, Charpy "V" impact tests, and radiography.
EN ISO 11970:2016 is classified under the following ICS (International Classification for Standards) categories: 25.160.10 - Welding processes; 77.140.80 - Iron and steel castings. The ICS classification helps identify the subject area and facilitates finding related standards.
EN ISO 11970:2016 has the following relationships with other standards: It is inter standard links to EN ISO 11970:2007, EN ISO 11970:2025. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
You can purchase EN ISO 11970:2016 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CEN standards.
ISO 11970:2016は、鋼鋳物の製造用溶接手順書（WPS）の資格をどのように定めるかを規定しています。 本規格は、必須変数の範囲内での実用的な溶接作業のための溶接手順資格試験の実施条件と、資格を持つ溶接手順の有効期限を定義しています。 追加の試験が発注者または契約当事者間で指定されない限り、試験はこの国際規格に従って実施されることが意図されています。 ISO 11970:2016は鋼鋳物のアーク溶接に適用されますが、契約当事者間の合意により他の融合溶接プロセスにも適用できます。 特定のサービス、材料、または製造条件の場合、発注者はより詳細な情報を得るため、この国際規格で定められたものよりも包括的な試験を指定することができます。例えば、鋳物引張り試験、曲げ試験、化学分析、オーステナイトステンレス鋼のフェライト判定、伸び、Charpy "V" 衝撃試験、および放射線検査などがあります。
ISO 11970:2016는 강철 주조물의 생산용 용접 공정 명세 (WPS)를 어떻게 합격시킬 것인지를 명시한다. 이것은 필수 조건의 범위 내에서 모든 실용적인 용접 작업에 대한 용접 공정 합격 시험 수행 조건과 합격 용접 공정의 유효기간을 정의한다. 구매자가 구매자 또는 계약 당사자 간에 특별한 시험을 요구하지 않는 한, 테스트는 이 국제 표준에 따라 수행되어야 한다. ISO 11970:2016은 강철 주조물의 아크 용접에 적용된다. 이 국제 표준의 원칙은 계약 당사자 간에 합의된 경우 다른 융합 용접 공정에도 적용될 수 있다. 특정한 서비스, 소재 또는 제조 조건의 경우, 구매자는 더 많은 정보를 얻기 위해 이 국제 표준에서 명시된 것보다 포괄적인 테스트를 요구할 수 있다. 예를 들어, 축방향 용접 인장 시험, 굴림 시험, 화학 분석, 오스테나이트 스테인레스 스틸에서 페라이트 결정, 연신율, Charpy "V" 충격 시험 및 방사선 검사 등이 있다.
The article discusses EN ISO 11970:2016, which is a specification and qualification for welding procedures used in the production welding of steel castings. The standard defines the conditions and limits for qualifying a welding procedure specification. It also states that tests should be conducted in accordance with the standard, unless additional tests are requested by the purchaser or agreed upon between the parties involved. The standard applies specifically to arc welding of steel castings, but can be extended to other fusion welding processes if agreed upon. It also mentions that in certain cases, the purchaser may specify more comprehensive tests to gather more information about the service, material, or manufacturing conditions. Examples of such additional tests include longitudinal weld tensile tests, bend tests, chemical analyses, ferrite determination in austenitic stainless steels, elongation, Charpy "V" impact tests, and radiography.
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