日本神钢TIG焊丝类别品名AWS型号熔敷金属化学成分(%)熔敷金属力学性能保护气体简明与用途CMnSiCrNi其它σ0.2(MPa)δb(MPa)δ(%)IV(J)常用手工TIG焊丝TGS-50ER70S-G0.101.400.74--48058033-29℃/180Ar低碳钢、50KG级高强钢和低温铝镇静钢TGS-1NER70S-G0.051.070.31-0.82Mo:0.1546054033-60℃/200Ar用于焊接低温钢TGS-3NER70S-G0.040.890.36-3.48Mo:0.1551058030-101℃/69Ar用于焊接3.5%Ni低温钢TGS-1CMER80S-G0.060.990.501.22-Mo:0.54540630280℃/270Ar焊接1-1.25%Cr-0.5Mo耐热钢。TGS-1CMLER80S-G0.021.100.481.38-Mo:0.50480580310℃/300Ar)