低温钢实心、药芯焊丝(Low-Alloyed Structural Steels GTAW r/wires, GMAW, FCAW and MCAW wires)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σ0.2σbδ5AKWAWS A…EN…CMnSiNiS≤P≤AlCrMoMPaMPa%℃JUnion I 1,2 NiGTAW5.28:ER80S-G1668:W3Ni10.101.400.701.300.0200.020---AW49059025-6065Union I 5 NiGMAW5.28:ER80S-G440:G463CG3Ni1/G505MG3Ni10.101.400.701.400.0200.020---AW490600 <, /TD> 25-5050, , Union I 2,5 NiGTAW5.28:ER80S-Ni21668:W2Ni20.081.000.602.350.0200.020---SR44054026-9045Union Ni 2,5GMAW5.28:ER80S-Ni2440:G506MG2Ni20.081.000.602.350.0200.020---SR45056024-8055