NF EN ISO 21952

NF EN ISO 21952

February 2025
Standard Current

Welding consumables - Wire electrodes, wires, rods and deposits for gas shielded arc welding of creep-resisting steels - Classification

This document specifies requirements for classification of wire electrodes, wires and rods for gas shielded metal arc welding and tungsten inert-gas welding of creep-resisting steels, and for their deposits in the as-welded or post-weld heat-treated condition. One wire electrode can be tested and classified with different shielding gases.This document is a combined specification providing for classification utilizing a system based upon the chemical composition of wire electrodes, wires and rods with requirements for yield strength and average impact energy of 47 J of all-weld metal, or utilizing a system based upon the tensile strength of the all-weld metal deposits and the chemical composition of wire electrodes, wires and rods.a)       Clauses, subclauses and tables which carry the suffix ?system A? are applicable only to wire electrodes, wires, rods and deposits classified in accordance with the system based upon the chemical composition with requirements for yield strength and the average impact energy of 47 J of all-weld metal deposits under this document.b)       Clauses, subclauses and tables which carry the suffix ?system B? are applicable only to wire electrodes, wires, rods and deposits classified in accordance with the system based upon the tensile strength of all?weld metal deposits and the chemical composition of wire electrodes, wires and rods under this document.c)        Clauses, subclauses and tables which do not have either the suffix ?system A? or the ?system B? are applicable to all wire electrodes, wires, rods and deposits classified under this document.

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Main informations

Collections

National standards and national normative documents

Publication date

February 2025

Number of pages

26 p.

Reference

NF EN ISO 21952

ICS Codes

25.160.20   Welding consumables

Classification index

A81-317

Print number

1

International kinship

European kinship

EN ISO 21952:2025
Sumary
Welding consumables - Wire electrodes, wires, rods and deposits for gas shielded arc welding of creep-resisting steels - Classification

This document specifies requirements for classification of wire electrodes, wires and rods for gas shielded metal arc welding and tungsten inert-gas welding of creep-resisting steels, and for their deposits in the as-welded or post-weld heat-treated condition. One wire electrode can be tested and classified with different shielding gases.

This document is a combined specification providing for classification utilizing a system based upon the chemical composition of wire electrodes, wires and rods with requirements for yield strength and average impact energy of 47 J of all-weld metal, or utilizing a system based upon the tensile strength of the all-weld metal deposits and the chemical composition of wire electrodes, wires and rods.

a)       Clauses, subclauses and tables which carry the suffix ?system A? are applicable only to wire electrodes, wires, rods and deposits classified in accordance with the system based upon the chemical composition with requirements for yield strength and the average impact energy of 47 J of all-weld metal deposits under this document.

b)       Clauses, subclauses and tables which carry the suffix ?system B? are applicable only to wire electrodes, wires, rods and deposits classified in accordance with the system based upon the tensile strength of all?weld metal deposits and the chemical composition of wire electrodes, wires and rods under this document.

c)        Clauses, subclauses and tables which do not have either the suffix ?system A? or the ?system B? are applicable to all wire electrodes, wires, rods and deposits classified under this document.

Replaced standards (1)
NF EN ISO 21952
July 2012
Standard Cancelled
Welding consumables - Wire electrodes, wires, rods and deposits for gas-shielded arc welding of creep-resisting steels - Classification

ISO 21952:2012 specifies requirements for classification of wire electrodes, wires and rods for gas shielded metal arc welding and tungsten inert-gas welding of creep-resisting steels, and for their deposits in the as-welded or post-weld heat-treated condition. One wire electrode can be tested and classified with different shielding gases. ISO 21952:2012 is a combined specification providing for classification utilizing a system based upon the chemical composition of wire electrodes, wires and rods with requirements for yield strength and average impact energy of 47 J of all-weld metal, or utilizing a system based upon the tensile strength of the all-weld metal deposits and the chemical composition of wire electrodes, wires and rods.

Table of contents
  • 1 Domaine d'application
  • 2 Références normatives
  • 3 Termes et définitions
  • 4 Classification
  • 5 Symboles et exigences
  • 6 Essais mécaniques
  • 7 Température de préchauffage et température entre passes
  • 8 Conditions de soudage et séquence des passes
  • 9 Analyse chimique
  • 10 Mode opératoire d'arrondissage
  • 11 Contre-essais
  • 12 Conditions techniques de livraison
  • 13 Exemples de désignation
  • Bibliographie
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