A237不锈钢焊条熔敷金属化学成分(%)化学成分CMnSiSPCuNiMoCrV保证值≤0.080.5~2.5≤0.90≤0.030≤0.035≤0.5011.0~14.02.00~2.5017.0~20.00.30~0.70熔敷金属力学性能试验项目σb(MPa)δ5(%)保证值≥540≥25参考电流(DC+)焊条直径(mm)φ2.0φ2.5φ3.2φ4.0φ5.0焊接电流(A)40~8050~10070~12090~160140~200)