NF EN ISO 11970

NF EN ISO 11970

June 2016
Standard Current

Specification and qualification of welding procedures for production welding of steel castings

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.

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Main informations

Collections

National standards and national normative documents

Publication date

June 2016

Number of pages

24 p.

Reference

NF EN ISO 11970

ICS Codes

25.160.10   Welding processes
77.140.80   Iron and steel castings

Classification index

A32-040

Print number

1

International kinship

ISO 11970:2016

European kinship

EN ISO 11970:2016
Sumary
Specification and qualification of welding procedures for production welding of steel castings

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.

Replaced standards (1)
NF EN ISO 11970
March 2008
Standard Cancelled
Specification and approval of welding procedures for production welding of steel castings

Le présent document donne les principes de base pour le descriptif et la qualification d'un mode opératoire de soudage de production sur des pièces moulées en acier. Il spécifie les essais correspondants et précise l'étendue du domaine de validité.

Table of contents
  • Avant-propos
  • 1 Domaine d'application
  • 2 Références normatives
  • 3 Termes et définitions
  • 4 Descriptif d'un mode opératoire de soudage préliminaire (DMOS-p)
  • 5 Qualification d'un mode opératoire de soudage
  • 6 Coupon d'essai
  • 7 Contrôles et essais
  • 8 Domaine de validité
  • 9 Rapport de qualification d'un mode opératoire de soudage (R-QMOS)
  • Annexe B(normative) Détails de l'assemblage d'essai
  • Annexe A(informative) Modèle de rapport de qualification d'un mode opératoire de soudage (R-QMOS) - Certificat d'essai
  • Bibliographie
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