焊接耗材 - 非合金和细晶粒钢手动金属电弧焊的覆盖电极 - 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手工电弧焊在焊后状态和焊后热处理状态下的药皮焊条和熔敷金属的分类要求。本文件是一个组合规范，规定了使用基于全焊缝金属的屈服强度和47J平均冲击功的系统或使用基于全焊缝金属的抗拉强度和27J平均冲击功的系统进行分类。a) 带有后缀字母“A”的条款、子条款和表格仅适用于本文件中根据所有焊缝金属的屈服强度和47J平均冲击功分类的药皮焊条。b) 带有后缀字母“B”的条款、子条款和表格仅适用于本文件中根据所有焊缝金属的抗拉强度和27J平均冲击功分类的药皮焊条。 c) 不带后缀字母“A”或后缀字母“B”的条款、子条款和表格适用于本文件分类的所有带盖焊条。 [外文原描述]： This document specifies requirements for the classification of covered electrodes and deposited metal in the as-welded condition and in the post-weld heat-treated condition for manual 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. This document is a combined specification providing for classification utilizing a system based on the yield strength and the average impact energy of 47 J of all-weld metal, or utilizing a system based on the tensile strength and the average impact energy of 27 J of all-weld metal. a) Clauses, subclauses and tables which carry the suffix letter "A" are applicable only to covered electrodes classified to the system based on the yield strength and the average impact energy of 47 J of all weld metal in this document. b) Clauses, subclauses and tables which carry the suffix letter "B" are applicable only to covered electrodes classified to the system based on the tensile strength and the average impact energy of 27 J of all weld metal in this document. c) Clauses, subclauses and tables which do not have either the suffix letter "A" or the suffix letter "B" are applicable to all covered electrodes classified in this document.