prEN ISO 11970
(Main)Specification and qualification of welding procedures for production welding of steel castings (ISO/DIS 11970:2024)
Specification and qualification of welding procedures for production welding of steel castings (ISO/DIS 11970:2024)
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.
Schweißanweisungen für das Produktionsschweißen von Stahlgussteilen und deren Qualifizierung (ISO/DIS 11970:2024))
Dieses Dokument legt fest, wie eine Schweißanweisung (WPS) für das Fertigungsschweißen von Stahlgussteilen qualifiziert wird. Es ist vorgesehen, dass die Prüfungen nach diesem Dokument durchgeführt werden, es sei denn, der Auftraggeber oder die Vertragsparteien haben zusätzliche Prüfungen festgelegt.
Frühere Verfahrensprüfungen, die dem Prüfumfang des Abschnitts 8 entsprechen, sind nach diesem Dokument gültig.
Wenn zusätzliche Prüfungen durchgeführt werden müssen, um die Qualifizierung zu vervollständigen, ist es nur erforderlich, die zusätzlichen Prüfungen nach den Anforderungen von Abschnitt 6 und Abschnitt 7 durchzuführen.
Es legt die Bedingungen für die Durchführung von Schweißverfahrensprüfungen und die Grenzen der Gültigkeit eines qualifizierten Schweißverfahrens für alle praktischen Schweißvorgänge im Bereich der wesentlichen Einflussgrößen fest.
Dieses Dokument gilt für das Lichtbogenschweißen von Stahlgussteilen. Die Grundsätze dieser Internationalen Norm können vorbehaltlich einer Vereinbarung zwischen den Vertragsparteien auf andere Schmelzschweißverfahren angewendet werden.
Bei besonderen Betriebs-, Werkstoff- oder Fertigungsbedingungen können vom Besteller umfangreichere Prüfungen als in diesem Dokument festgelegt werden, um mehr Informationen zu erhalten, z. B. Längsnaht-Zugversuche, Biegeversuche, chemische Analysen, Ferritbestimmung in austenitischen nichtrostenden Stählen, Bruchdehnung, Kerbschlagbiegeversuche nach Charpy V und Durchstrahlungsprüfungen.
Descriptif et qualification de modes opératoires de soudage pour le soudage de production des aciers moulés (ISO/DIS 11970:2024)
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 kvalifikacija varilnih postopkov za proizvodno varjenje jeklenih ulitkov (ISO/DIS 11970:2024)
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Standards Content (Sample)
SLOVENSKI STANDARD
01-april-2024
Popis in kvalifikacija varilnih postopkov za proizvodno varjenje jeklenih ulitkov
(ISO/DIS 11970:2024)
Specification and qualification of welding procedures for production welding of steel
castings (ISO/DIS 11970:2024)
Anforderungen und Anerkennung von Schweißverfahren für das Produktionsschweißen
von Stahlguss (ISO/DIS 11970:2024)
Descriptif et qualification de modes opératoires de soudage pour le soudage de
production des aciers moulés (ISO/DIS 11970:2024)
Ta slovenski standard je istoveten z: prEN ISO 11970
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.
DRAFT
International
Standard
ISO/DIS 11970
ISO/TC 17/SC 11
Specification and qualification of
Secretariat: ANSI
welding procedures for production
Voting begins on:
welding of steel castings
2024-02-05
Descriptif et qualification de modes opératoires de soudage pour
Voting terminates on:
le soudage de production des aciers moulés
2024-04-29
ICS: 25.160.10; 77.140.80
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENTS AND APPROVAL. IT
IS THEREFORE SUBJECT TO CHANGE
AND MAY NOT BE REFERRED TO AS AN
INTERNATIONAL STANDARD UNTIL
PUBLISHED AS SUCH.
This document is circulated as received from the committee secretariat.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
ISO/CEN PARALLEL PROCESSING
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.
Reference number
ISO/DIS 11970:2024(en)
ISO/DIS 11970:2024(en)
DRAFT INTERNATIONAL STANDARD
ISO/DIS 11970
ISO/TC 17/SC 11 Secretariat: ANSI
Voting begins on: Voting terminates on:
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
ICS: 25.160.10; 77.140.80
This document is circulated as received from the committee secretariat.
© ISO 2024
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
ISO/CEN PARALLEL PROCESSING
THEREFORE SUBJECT TO CHANGE AND MAY
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
NOT BE REFERRED TO AS AN INTERNATIONAL
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
STANDARD UNTIL PUBLISHED AS SUCH.
or ISO’s member body in the country of the requester.
IN ADDITION TO THEIR EVALUATION AS
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TECHNOLOGICAL, COMMERCIAL AND
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Email: copyright@iso.org POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Website: www.iso.org
Reference number
NATIONAL REGULATIONS.
Published in Switzerland ISO/DIS 11970:2023(E)
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. © ISO 2023
ii
ISO/DIS 11970:2023(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 welding carried out after delivery to the end user, i.e. after the casting has been in
servicePreliminary welding procedure specification (pWPS) . 2
5 Welding procedure qualification . 2
6 Test piece . 3
6.1 General . 3
6.2 Shape and dimensions of test piece . 3
6.3 Welding of the test piece . 3
7 Examination and testing .5
7.1 Extent of testing . 5
7.2 Location and cutting of test specimens . 6
7.3 Non-destructive testing . 6
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 . 8
7.4.5 Hardness test . 8
7.5 Qualification and retesting . . 9
7.6 Welder qualification . 9
8 Range of qualification . 9
8.1 General . 9
8.2 Related to the manufacturer . 9
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 . 10
8.4 Common to all welding procedures . 10
8.4.1 Welding process . 10
8.4.2 Welding positions . 11
8.4.3 Type of joint . 11
8.4.4 Filler metal . 11
8.4.5 Type of current . . 11
8.4.6 Heat input . 11
8.4.7 Preheat temperature .12
8.4.8 Interpass temperature .12
8.4.9 Post-weld heat treatment .12
8.5 Specific to process .12
9 Welding procedure qualification record (WPQR).12
Annex A (informative) Record form (WPQR) welding procedure qualification — Test
certificate .14
Annex B (normative) Details of weld testing .15
Bibliography .18
iii
ISO/DIS 11970:2023(E)
Foreword
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The committee responsible for this document is ISO/TC 17, Steel, Subcommittee SC 11, Steel
...
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