ISO 18276:2017 焊接消耗品 高强度钢气体保护和非气体保护金属电弧焊用管状核心电极 分类
标准编号：ISO 18276:2017
中文名称：焊接消耗品 高强度钢气体保护和非气体保护金属电弧焊用管状核心电极 分类
英文名称：Welding consumables — Tubular cored electrodes for gas-shielded and non-gas-shielded metal arc welding of high strength steels — Classification
发布日期：2017-03
标准范围
ISO 18276:2017规定了在焊接状态或焊后热处理状态下，最小屈服强度高于550 MPa或最小抗拉强度高于590 MPa的高强度钢金属极电弧焊用带或不带气体保护层的管状药芯焊条的分类要求。如果使用一个以上的保护气体，则可以使用不同的保护气体对一个管状药芯电极进行测试和分类。ISO 18276:2017是一个综合规范，使用基于全焊接金属屈服强度和47 J平均冲击能量的系统，或使用基于全焊接金属抗拉强度和27 J平均冲击能量的系统进行分类。-带有后缀字母“A”的子条款和表格仅适用于根据本文件中给出的所有焊接金属的屈服强度和47 J的平均冲击能量分类在系统下的管状药芯焊条。-带有后缀字母“B”的子条款和表格仅适用于根据本文件中给出的所有焊缝金属的抗拉强度和27 J的平均冲击能量，根据系统分类的管状药芯焊条。-没有后缀字母“A”或后缀字母“B”的子条款和表格适用于根据本文件分类的所有管状药芯焊条。众所周知，管状药芯电极的工作特性可以通过使用脉冲电流进行修改，但就本文件而言，脉冲电流不用于确定电极分类。
ISO 18276:2017 specifies the requirements for classification of tubular cored electrodes with or without a gas shield for metal arc welding of high-strength steels in the as-welded condition or in the post-weld heat-treated condition with a minimum yield strength higher than 550 MPa or a minimum tensile strength higher than 590 MPa. One tubular cored electrode can be tested and classified with different shielding gases, if used with more than one.ISO 18276:2017 is a combined specification providing classification utilizing a system based upon the yield strength and an average impact energy of 47 J of the all-weld metal, or utilizing a system based upon the tensile strength and an average impact energy of 27 J of the all-weld metal.- Subclauses and tables which carry the suffix letter "A" are applicable only to tubular cored electrodes classified under the system based upon the yield strength and an average impact energy of 47 J of the all-weld metal given in this document.- Subclauses and tables which carry the suffix letter "B" are applicable only to tubular cored electrodes classified under the system based upon the tensile strength and an average impact energy of 27 J of the all-weld metal given in this document.- Subclauses and tables which do not have either the suffix letter "A" or the suffix letter "B" are applicable to all tubular cored electrodes classified under this document.It is recognized that the operating characteristics of tubular cored electrodes can be modified by the use of pulsed current but, for the purposes of this document, pulsed current is not used for determining the electrode classification.
标准预览图
