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
------
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.