NF EN ISO 16834

NF EN ISO 16834

February 2025
Standard Current

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

This document specifies requirements for classification of wire electrodes, wires, rods and all-weld metal deposits in the as-welded condition and in the post-weld heat-treated (PWHT) condition for gas shielded metal arc welding and tungsten inert-gas welding of high-strength steels with a minimum yield strength greater than 500 MPa, or a minimum tensile strength greater than 570 MPa. 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 yield strength and the average impact energy of 47 J of all-weld metal, or utilizing a system based upon the tensile strength and the average impact energy of 27 J of all-weld metal.a)       Clauses, subclauses and tables which carry the suffix ?System A? are applicable only to wire electrodes, wires, rods and deposits classified according to the system based upon the yield strength and the average impact energy of 47 J of all-weld metal 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 according to the system based upon the tensile strength and the average impact energy of 27 J of all-weld metal under this document.c)        Clauses, subclauses and tables which do not have either the suffix ?System A? or ?System B? are applicable to all wire electrodes, wires, rods and deposits classified under this document.Annex A gives information on the description of composition designations for electrodes in the classification system based upon tensile strength and average impact energy of 27 J ? System B.

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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 16834

ICS Codes

25.160.20   Welding consumables

Classification index

A81-326

Print number

1

International kinship

European kinship

EN ISO 16834:2025
Sumary
Welding consumables - Wire electrodes, wires, rods and deposits for gas shielded arc welding of high strength steels - Classification

This document specifies requirements for classification of wire electrodes, wires, rods and all-weld metal deposits in the as-welded condition and in the post-weld heat-treated (PWHT) condition for gas shielded metal arc welding and tungsten inert-gas welding of high-strength steels with a minimum yield strength greater than 500 MPa, or a minimum tensile strength greater than 570 MPa. 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 yield strength and the average impact energy of 47 J of all-weld metal, or utilizing a system based upon the tensile strength and the average impact energy of 27 J of all-weld metal.

a)       Clauses, subclauses and tables which carry the suffix ?System A? are applicable only to wire electrodes, wires, rods and deposits classified according to the system based upon the yield strength and the average impact energy of 47 J of all-weld metal 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 according to the system based upon the tensile strength and the average impact energy of 27 J of all-weld metal under this document.

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

Annex A gives information on the description of composition designations for electrodes in the classification system based upon tensile strength and average impact energy of 27 J ? System B.

Replaced standards (1)
NF EN ISO 16834
August 2012
Standard Cancelled
Welding consumables - Wire electrodes, wires, rods and deposits for gas shielded arc welding of high strength steels - Classification

ISO 16834:2012 specifies requirements for classification of wire electrodes, wires, rods and all-weld metal deposits in the as-welded condition and in the post-weld heat-treated (PWHT) condition for gas shielded metal arc welding and tungsten inert-gas welding of high-strength steels with a minimum yield strength greater than 500 MPa, or a minimum tensile strength greater than 570 MPa. One wire electrode can be tested and classified with different shielding gases. ISO 16834:2012 is a combined specification providing for classification utilizing a system based upon the yield strength and the average impact energy of 47 J of all-weld metal, or utilizing a system based upon the tensile strength and the average impact energy of 27 J of all-weld metal.

Table of contents
  • 1 Domaine d'application
  • 2 Références normatives
  • 3 Termes et définitions
  • 4 Classification
  • 5 Symboles et exigences
  • 6 Essais mécaniques
  • 7 Températures de préchauffage et entre passes
  • 8 Conditions de soudage et séquence des passes
  • 9 Analyse chimique
  • 10 Mode opératoire d'arrondissage
  • 11 Contre-essai
  • 12 Conditions techniques de livraison
  • 13 Exemples de désignation
  • A Description des désignations de composition pour les électrodes dans le système de classification basé sur la résistance à la traction et l'énergie de rupture minimale de 27 J - Système B
  • Bibliographie
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