SIST EN ISO 636:2025
(Main)Welding consumables - Rods, wires and deposits for tungsten inert gas welding of non-alloy and fine-grain steels - Classification (ISO 636:2024)
Welding consumables - Rods, wires and deposits for tungsten inert gas welding of non-alloy and fine-grain steels - Classification (ISO 636:2024)
ISO 636:2017 specifies requirements for classification of rods and wires in the as-welded condition and in the post-weld heat-treated condition for tungsten inert gas welding of non-alloy and fine-grain steels with a minimum yield strength of up to 500 MPa or a minimum tensile strength of up to 570 MPa.
ISO 636:2017 is a combined specification providing 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) Paragraphs and tables which carry the suffix letter "A" are applicable only to rods and wires classified to the system based upon the yield strength and the average impact energy of 47 J of all-weld metal in accordance with this document.
b) Paragraphs and tables which carry the suffix letter "B" are applicable only to rods and wires classified to the system based upon the tensile strength and the average impact energy of 27 J of all-weld metal in accordance with this document.
c) Paragraphs and tables which have neither the suffix letter "A" nor the suffix letter "B" are applicable to all rods and wires classified in accordance with this document.
Schweißzusätze - Stäbe, Drähte und Schweißgut zum Wolfram-Inertgasschweißen von unlegierten Stählen und Feinkornstählen - Einteilung (ISO 636:2024)
Dieses Dokument legt Anforderungen für die Einteilung von Stäben, Drähten und Schweißgut im Schweißzustand und nach einer Wärmebehandlung (PWHT, en: post-weld heat-treated) für das Wolfram Inertgasschweißen von unlegierten Stählen und Feinkornstählen mit einer Mindeststreckgrenze bis zu 500 MPa oder einer Mindestzugfestigkeit bis zu 570 MPa fest.
Dieses Dokument ist eine kombinierte Spezifikation, die zur Einteilung ein System nutzt, das auf der Streckgrenze und der durchschnittlichen Kerbschlagarbeit des reinen Schweißgutes von 47 J beruht, oder die ein System nutzt, das auf der Zugfestigkeit und der durchschnittlichen Kerbschlagarbeit des reinen Schweißgutes von 27 J beruht.
a) Bestandteile, die den Zusatz „System A“ tragen, sind nur für Stäbe, Drähte und Schweißgut anwendbar, die nach dem System eingeteilt sind, das auf der Streckgrenze und der durchschnittlichen Kerbschlagarbeit des reinen Schweißgutes von 47 J nach diesem Dokument beruht.
b) Bestandteile, die den Zusatz „System B“ tragen, sind nur für Stäbe, Drähte und Schweißgut anwendbar, die nach dem System eingeteilt sind, das auf der Zugfestigkeit und der durchschnittlichen Kerbschlagarbeit des reinen Schweißgutes von 27 J nach diesem Dokument beruht.
c) Bestandteile, die weder „System A“ noch „System B“ als Zusatz tragen, sind für alle nach diesem Dokument eingeteilten Stäbe, Drähte und Schweißgut anwendbar.
Produits consommables pour le soudage - Baguettes, fils et dépôts pour soudage TIG des aciers non alliés et des aciers à grains fins - Classification (ISO 636:2024)
ISO 636:2017 spécifie les exigences relatives à la classification des baguettes et des fils à l'état brut de soudage et à l'état traité thermiquement après soudage, en soudage TIG (soudage à l'arc sous protection de gaz inerte avec électrode de tungstène) des aciers non alliés et des aciers à grains fins ayant une limite d'élasticité minimale pouvant atteindre 500 MPa ou une résistance à la traction minimale pouvant atteindre 570 MPa.
ISO 636:2017 propose une spécification mixte permettant une classification utilisant un système fondé soit sur la limite d'élasticité et l'énergie de rupture moyenne de 47 J pour le métal fondu hors dilution, soit sur la résistance à la traction et l'énergie de rupture moyenne de 27 J pour le métal fondu hors dilution.
a) Les paragraphes et les tableaux qui portent le suffixe «A» ne sont applicables qu'aux baguettes et fils classifiés d'après le système basé sur la limite d'élasticité et l'énergie de rupture moyenne de 47 J pour le métal fondu hors dilution conformément au présent document.
b) Les paragraphes et les tableaux qui portent le suffixe «B» ne sont applicables qu'aux baguettes et fils classifiés d'après le système basé sur la résistance à la traction et l'énergie de rupture moyenne de 27 J pour le métal fondu hors dilution conformément au présent document.
c) Les paragraphes et les tableaux ne comportant ni le suffixe «A» ni le suffixe «B» sont applicables à toutes les baguettes et à tous les fils classifiés conformément au présent document.
Dodajni in pomožni materiali za varjenje - Palice, žice in čisti vari pri varjenju TIG nelegiranih in drobnozrnatih jekel - Razvrstitev (ISO 636:2024)
General Information
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Standards Content (Sample)
SLOVENSKI STANDARD
01-marec-2025
Nadomešča:
SIST EN ISO 636:2018
Dodajni in pomožni materiali za varjenje - Palice, žice in čisti vari pri varjenju TIG
nelegiranih in drobnozrnatih jekel - Razvrstitev (ISO 636:2024)
Welding consumables - Rods, wires and deposits for tungsten inert gas welding of non-
alloy and fine-grain steels - Classification (ISO 636:2024)
Schweißzusätze - Stäbe, Drähte und Schweißgut zum Wolfram-Inertgasschweißen von
unlegierten Stählen und Feinkornstählen - Einteilung (ISO 636:2024)
Produits consommables pour le soudage - Baguettes, fils et dépôts pour soudage TIG
des aciers non alliés et des aciers à grains fins - Classification (ISO 636:2024)
Ta slovenski standard je istoveten z: EN ISO 636:2024
ICS:
25.160.20 Potrošni material pri varjenju Welding consumables
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN ISO 636
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2024
EUROPÄISCHE NORM
ICS 25.160.20 Supersedes EN ISO 636:2017
English Version
Welding consumables - Rods, wires and deposits for
tungsten inert gas welding of non-alloy and fine-grain
steels - Classification (ISO 636:2024)
Produits consommables pour le soudage - Baguettes, Schweißzusätze - Stäbe, Drähte und Schweißgut zum
fils et dépôts pour soudage TIG des aciers non alliés et Wolfram-Inertgasschweißen von unlegierten Stählen
des aciers à grains fins - Classification (ISO 636:2024) und Feinkornstählen - Einteilung (ISO 636:2024)
This European Standard was approved by CEN on 14 June 2024.
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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 636:2024 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
This document (EN ISO 636:2024) has been prepared by Technical Committee ISO/TC 44 "Welding and
allied processes" in collaboration with Technical Committee CEN/TC 121 “Welding and allied
processes” 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 April 2025, and conflicting national standards shall be
withdrawn at the latest by April 2025.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 636:2017.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
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, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the
United Kingdom.
Endorsement notice
The text of ISO 636:2024 has been approved by CEN as EN ISO 636:2024 without any modification.
International
Standard
ISO 636
Sixth edition
Welding consumables — Rods,
2024-09
wires and deposits for tungsten
inert gas welding of non-alloy and
fine-grain steels — Classification
Produits consommables pour le soudage — Baguettes, fils et
dépôts pour soudage TIG des aciers non alliés et des aciers à
grains fins — Classification
Reference number
ISO 636:2024(en) © ISO 2024
ISO 636:2024(en)
© ISO 2024
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
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Published in Switzerland
ii
ISO 636:2024(en)
Contents Page
Foreword .iv
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Classification . 2
4.1 General .2
4.2 Classification systems .2
5 Symbols and requirements . 2
5.1 Symbol for the product/process .2
5.2 Symbol for strength and elongation of all-weld metal .2
5.3 Symbol for impact properties of all-weld metal .3
5.3.1 System A - Classification by yield strength and 47 J impact energy .3
5.3.2 System B - Classification by tensile strength and 27 J impact energy .3
5.4 Symbol for the chemical composition of rods or wires .4
6 Mechanical tests . 8
6.1 Mechanical tests and conditions .8
6.2 Preheating and interpass temperatures .8
6.3 Welding conditions and pass sequence .9
6.4 PWHT condition .9
7 Chemical analysis . . 9
8 Rounding procedure . 9
9 Retesting .10
10 Technical delivery conditions . 10
11 Designation examples . 10
11.1 General .10
11.2 Example 1 – Classification by yield strength and 47 J impact energy – System A .10
11.3 Example 2 – Classification by tensile strength and 27 J impact energy – System B .10
11.4 Example 3 - Classification by yield strength and 47 J impact energy – System A .11
11.5 Example 4 - Classification by tensile strength and 27 J impact energy – System B .11
11.6 Example 4 - Classification by tensile strength and 27 J impact energy – System B . 12
Bibliography .13
iii
ISO 636:2024(en)
Foreword
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