焊接材料 不锈钢和耐热钢手工电弧焊用药皮焊条 分类

[中文适用范围]： 本文件规定了用于不锈钢和耐热钢手工金属电弧焊的带药皮焊条的分类要求，分类依据的是焊条的全焊缝金属化学成分、焊条覆盖类型和其他焊条性能、以及焊缝金属在焊接或热处理条件下的机械性能。本文件是一个组合标准，规定了使用基于公称成分分类的系统或使用基于合金类型分类的系统进行分类。a) 带有标签“根据公称成分分类-A”或 b) 带有标签“根据合金类型分类-B”或“ISO 3581-B”的段落和表格仅适用于归入该系统的产品。c) 未带有任何标签的段落和表格适用于根据其中一个系统或两个系统分类的产品。附件 B 提供了有关焊缝金属铁素体含量考虑因素的信息。 [外文原描述]： This document specifies requirements for classification of covered electrodes, based on the all-weld metal chemical composition, the type of electrode covering and other electrode properties, and the all-weld metal mechanical properties, in the as-welded or heat-treated conditions, for manual metal arc welding of stainless and heat-resisting steels. This document is a combined standard providing for classification utilizing a system based upon classification according to nominal composition or utilizing a system based upon classification according to alloy type. a) Paragraphs and tables which carry the label “classification according to nominal composition-A” or “ISO 3581-A” are applicable only to products classified to that system. b) Paragraphs and tables which carry the label “classification according to alloy type-B” or “ISO 3581-B” are applicable only to products classified to that system. c) Paragraphs and tables which carry neither label are applicable to products classified according to either or both systems. Annex B gives information on considerations on weld metal ferrite content.