保证值≤0.080.5~2.5≤0.90≤0.030≤0.040≤0.759.0~11.0≤0.7518.0~21.0熔敷金属力学性能试验项目Rm(MPa)A(%)保证值≥550≥35参考电流(DC+)焊条直径(mm)φ2.0φ2.5φ3.2φ4.0φ5.0焊接电流(A)40~8050~10070~12090~160140~200注意事项:)