NF EN ISO 17633, A81-358 (03/2025)

ISO 17633:2017 specifies requirements for the classification of flux- or metal-cored wires and rods, based on the chemical composition of the undiluted weld metal, core type, shielding gas, welding position and mechanical characteristics molten metal without dilution, wires and rods being intended for arc welding with or without gas protection of stainless steels and resistant to high temperatures. ISO 17633:2017 is a mixed standard allowing classification using a system based on classification by nominal composition or using a system by alloy type. a) Articles, paragraphs and tables which bear the letter “A” are only applicable to products classified according to the system based on nominal composition. b) Articles, paragraphs and tables which bear the letter “B” are only applicable to products classified according to the system based on the type of alloy. (c) Sections, paragraphs and tables which do not bear the letter “A” or the letter “B” are applicable to arc welding cored wires classified in accordance with this document. ISO 17633:2017 does not use pulsed current for determining product classification.
(Automatic translation from French)