ISO 14343:2017规定了不锈钢和耐热钢的气体保护金属极电弧焊、钨极气体保护焊、等离子弧焊、埋弧焊、电渣焊和激光束焊接用焊丝、条形焊条、焊丝和棒材的分类要求。金属丝电极、条形电极、金属丝和金属棒的分类基于其化学成分。 本文件是一份综合规范，规定使用基于标称成分的系统（系统a）或基于合金类型的系统（系统B）进行分类。 a） 标有“根据标称成分分类”标签和后缀字母“a”或“ISO 14343-a”的段落仅适用于根据系统a分类的产品； b） 带有标签“根据合金类型分类”和后缀字母“b”或“ISO 14343”的段落- B”，仅适用于根据系统B分类的产品。 c） 不带标签或后缀字母的段落适用于可根据系统A或B或两者进行分类的产品。

ISO 14343:2017 specifies requirements for classification of wire electrodes, strip electrodes, wires and rods for gas-shielded metal arc welding, gas tungsten arc welding, plasma arc welding, submerged arc welding, electroslag welding and laser beam welding of stainless and heat-resisting steels. The classification of the wire electrodes, strip electrodes, wires and rods is based upon their chemical composition. This document is a combined specification providing for classification utilizing a system based upon nominal composition (system A), or utilizing a system based upon alloy type (system B). a) Paragraphs which carry the label "classification according to nominal composition" and the suffix letter "A", or "ISO 14343-A", are applicable only to products classified according to system A; b) Paragraphs which carry the label "classification according to alloy type" and the suffix letter "B", or "ISO 14343-B", are applicable only to products classified according to system B. c) Paragraphs which carry neither label nor suffix letter are applicable to products that can be classified according to either system A or B or both.