ASMEBPVC.II.C-2023焊条、焊丝及填充金属上冊中关于SFA-A5.18的介绍如下：SFA-A5.18是美国焊接协会（AWS）制定的碳钢气体保护焊用焊丝和填充金属规范，适用于MIG/MAG焊接工艺。该标准规定了焊丝和填充金属的化学成分、力学性能、测试要求及包装标识等内容，确保材料在焊接过程中的质量和一致性。常见应用包括结构钢、管道及压力容器的焊接。英文参考：SFA-A5.18isaspecificationforcarbonsteelelectrodesandfillermetalsforgasshieldedarcwelding,establishedbytheAmericanWeldingSociety(AWS).Itcoversrequirementsforchemicalcomposition,mechanicalproperties,testing,andpackagingofwiresandrodsusedprimarilyinMIG/MAGweldingprocesses.Typicalapplicationsincludestructuralsteel,piping,andpressurevesselfabrication.
