焊接消耗品 - 非合金和细晶粒钢气体保护金属电弧焊接电极和沉积物 - 分类

[中文适用范围]： 本文件规定了对屈服强度不超过500MPa或抗拉强度不超过570MPa的非合金钢和细晶粒钢的气体保护金属电弧焊的焊丝和焊缝在焊后热处理状态下的分类要求。一根焊丝可以用不同的保护气体进行试验和分类。本文件构成一个组合规范，提供使用基于全焊缝金属的屈服强度和47J平均冲击能量的系统进行分类，或使用基于抗拉强度和全焊缝金属的27J平均冲击能量的系统进行分类。a) 带有后缀字母“A”的条款和表格仅适用于按照本文件基于屈服强度和全焊缝金属的47J平均冲击能量的系统分类的焊丝。 b) 带有后缀字母“B”的条款和表格仅适用于按照本文件根据抗拉强度和全焊缝金属平均冲击功27J系统分类的焊丝。 c) 既没有后缀字母“A”也没有后缀字母“B”的条款和表格适用于所有按照本文件分类的焊丝。 [外文原描述]： This document specifies requirements for classification of wire electrodes and weld deposits in the as-welded condition and in the post-weld heat-treated condition for gas shielded metal arc welding of non alloy and fine grain steels with a minimum yield strength of up to 500 MPa or a minimum tensile strength of up to 570 MPa. One wire electrode can be tested and classified with different shielding gases. This document constitutes a combined specification providing classification utilizing a system based upon the yield strength and the average impact energy of 47 J of all-weld metal, or utilizing a system based upon the tensile strength and the average impact energy of 27 J of all-weld metal. a) Clauses and tables which carry the suffix letter "A" are applicable only to wire electrodes classified to the system based on the yield strength and the average impact energy of 47 J of all-weld metal in accordance with this document. b) Clauses and tables which carry the suffix letter "B" are applicable only to wire electrodes classified to the system based on the tensile strength and the average impact energy of 27 J of all-weld metal in accordance with this document. c) Clauses and tables which have neither the suffix letter "A" nor the suffix letter "B" are applicable to all wire electrodes classified in accordance with this document.