NF EN ISO 14373
Resistance welding - Procedure for spot welding of uncoated and coated low carbon steels
ISO 14373:2006 specifies requirements for resistance spot welding in the fabrication of assemblies of uncoated and metallic coated low carbon steel, comprising two or three sheets of metal, where the maximum single sheet thickness of components to be welded is within the range 0,4 mm to 3 mm, for the following materials:uncoated steels;hot dip zinc or iron-zinc alloy (galvannealed) coated steel;electrolytic zinc, zinc-iron, or zinc-nickel coated steel;aluminium coated steel;zinc-aluminium coated steel.ISO 14373:2006 is applicable to the welding of sheets of the same or dissimilar thickness, where the thickness ratio is less than or equal to 3:1. It applies to the welding of three thicknesses, where the total thickness is less than or equal to 9 mm.Welding with the following types of equipment is within the scope of ISO 14373:2006:pedestal welding equipment;gun welders;automatic welding equipment where the components are fed by robots or automatic feeding equipment;multi welders;robotic welders.The welding of organic coated or primer coated steels is not within the scope of ISO 14373:2006.
ISO 14373:2006 specifies requirements for resistance spot welding in the fabrication of assemblies of uncoated and metallic coated low carbon steel, comprising two or three sheets of metal, where the maximum single sheet thickness of components to be welded is within the range 0,4 mm to 3 mm, for the following materials:
- uncoated steels;
- hot dip zinc or iron-zinc alloy (galvannealed) coated steel;
- electrolytic zinc, zinc-iron, or zinc-nickel coated steel;
- aluminium coated steel;
- zinc-aluminium coated steel.
ISO 14373:2006 is applicable to the welding of sheets of the same or dissimilar thickness, where the thickness ratio is less than or equal to 3:1. It applies to the welding of three thicknesses, where the total thickness is less than or equal to 9 mm.
Welding with the following types of equipment is within the scope of ISO 14373:2006:
- pedestal welding equipment;
- gun welders;
- automatic welding equipment where the components are fed by robots or automatic feeding equipment;
- multi welders;
- robotic welders.
The welding of organic coated or primer coated steels is not within the scope of ISO 14373:2006.
ISO 14373:2015 specifies requirements for resistance spot welding in the fabrication of assemblies of uncoated and metallic coated low carbon steel, comprising two or three sheets of metal, where the maximum single sheet thickness of components to be welded is within the range 0,4 mm to 3 mm, for the following materials: uncoated steels; hot-dip zinc or iron-zinc alloy (galvannealed) coated steel; electrolytic zinc, zinc-iron, or zinc-nickel coated steel; aluminium coated steel; zinc-aluminium coated steel. It is applicable to welding of sheets of the same or dissimilar thickness, where the thickness ratio is less than or equal to 3:1. It applies to the welding of three thicknesses, where the total thickness is less than or equal to 9 mm. Welding with the following types of equipment is within its scope: pedestal welding equipment; gun welders; automatic welding equipment where the components are fed by robots or automatic feeding equipment; multi welders; robotic welders. It also gives information, for guidance only, on appropriate welding equipment on spot welding conditions. The welding of organic coated or primer coated steels is not within its scope.
- Avant-proposiv
-
1 Domaine d'application1
-
2 Références normatives2
-
3 Termes et définitions2
-
4 Symboles et abréviations4
-
5 Matériau4
-
5.1 Forme4
-
5.2 Nuances d'acier4
-
6 État de surface5
-
7 États du bord, forme du composant et écartement entre soudures5
-
8 Électrodes5
-
8.1 Matériaux5
-
8.2 Dimensions5
-
8.3 Refroidissement des électrodes8
-
9 Évaluation de la soudure8
-
9.1 Généralités8
-
9.2 Essais de soudabilité8
-
9.3 Essais de production8
-
9.4 Fréquence des essais8
-
10 Exigences relatives à la qualité de la soudure9
-
10.1 Diamètre de la soudure9
-
10.2 Pénétration et empreinte de la soudure9
-
10.3 Mode de rupture de soudure9
-
10.4 Résistance de la soudure au cisaillement10
-
10.5 Aspect de la soudure10
-
11 Assemblages multi-points10
- Annexe A (informative) Recommandations relatives au matériel de soudage par points13
- Annexe B (informative) Conditions types de soudage par points14
- Annexe C (informative) Liste partielle de types d'aciers applicables à la présente Norme internationale16
- Bibliographie18
The Requirements department helps you quickly locate within the normative text:
- mandatory clauses to satisfy,
- non-essential but useful clauses to know, such as permissions and recommendations.
The identification of these types of clauses is based on the document “ISO / IEC Directives, Part 2 - Principles and rules of structure and drafting of ISO documents ”as well as on a constantly enriched list of verbal forms.
With Requirements, quickly access the main part of the normative text!

COBAZ is the simple and effective solution to meet the normative needs related to your activity, in France and abroad.
Available by subscription, CObaz is THE modular solution to compose according to your needs today and tomorrow. Quickly discover CObaz!
Request your free, no-obligation live demo
I discover COBAZ