低合金耐热钢实芯焊丝低合金耐热钢药芯焊丝类别品名AWS型号熔敷金属化学成分(%)熔敷金属力学性能特征与用途CSiMnPSCrMoσ0.2(MPa)δb(MPa)δ(%)Akv(J)药芯焊丝DWA-81B2E81T1-B2M0.050.550.970.0060.0121.340.4957565525-18℃:67适于焊接ASTMA387Gr.11,Gr.12钢和类似钢神,与DW-81B2相比,DWA-81B2冲击功较高DWA-91B3E91T1-B3M0.070.350.850.0070.0102.291.0061570521-18℃:96适于焊接ASTMA387Gr.22钢和类似钢种,与DW-91B3相比,DWA-91B3的冲击功较高低合金耐热钢实芯焊丝类别品名AWS型号焊丝化学成分(%)熔敷金属力学性能特征与用途CSiMnPSNiCrMoCuNbVσ0.2(MPa)δb(MPa)δ(%)Akv(J)实芯焊丝MGS-56E80S-G0.080.411.500.0060.0070.890.340.1750059029-40℃:69用于焊接Mn-Mo钢和Mn-Mo-Ni钢MGS-1CMER80S-G0.090.551.150.0070.0091.450.550.18570680220℃:69用于焊接直流1-1.25%Cr反接-0.5%Mo钢MGS-2CMER90S-G0.080.561.070.0050.0092.361.110.17550670260℃:110用于焊接2.25%Cr-1%Mo钢MGS-5CMER80S-B60.080.400.530.0110.0100.085.520.550.18480640260℃:78用于焊接5%Cr-0.5%Mo钢MGS-9CMER80S-B80.070.400.520.0070.0080.028.991.000.17480640240℃:130用于焊接9%Cr-1%Mo钢MGS-9CbER90S-G0.080.351.590.0070.0080.458.790.880.160.020.17570700270℃:98用于焊接9%Cr-1%Mo-Nb-V钢)