低温钢实心、药芯焊丝(Low-AlloyedStructuralSteelsGTAWrods/wires,GMAW,FCAWandMCAWwires)产品牌号类别分类标准及标号基本化学成份典型值（%）热处理σ0.2σbδ5AKWAWSA…EN…CMnSiNiS≤P≤AlCrMoMPaMPa%℃JUnionI1,2NiGTAW5.28:ER80S-G1668:W3Ni10.101.400.701.300.0200.020---AW49059025-6065UnionI5NiGMAW5.28:ER80S-G440:G463CG3Ni1/G505MG3Ni10.101.400.701.400.0200.020---AW490600<,/TD>25-5050,,UnionI2,5NiGTAW5.28:ER80S-Ni21668:W2Ni20.081.000.602.350.0200.020---SR44054026-9045)