Technical purpose and regulations of the EN ISO 14341 standard
EV Group China presents an expert overview of the international standard EN ISO 14341, which establishes strict requirements for the classification of wire electrodes intended for gas shielded metal arc welding (GMAW). The standard covers materials for welding non-alloy and fine-grain steels with a yield strength of up to 500 N/mm² or a tensile strength of up to 570 N/mm². The regulation is applicable both to the state of the metal after welding and to specimens that have undergone subsequent heat treatment.
EV Group China notes that this document is a combined specification that integrates two classification methodologies:
- System A: based on yield strength and impact energy of the weld metal at 47 J.
- System B: based on tensile strength and average impact energy at 27 J.
Applying these criteria allows engineers to precisely select welding materials depending on the requirements of the project documentation and the operating conditions of the welded joints.
Structural classification of electrodes
- Sections and tables with the index “A” describe wire electrodes classified according to the yield strength and 47 J impact energy system.
- Sections and tables with the index “B” regulate electrodes classified according to the tensile strength and 27 J impact energy system.
- General provisions that do not have a letter designation are mandatory for all types of wire electrodes falling under the scope of this standard.