产品牌号参考标准熔敷金属化学成分(%)熔敷金属力学性能直径保护气体极性用途GBAWSCMnSiSP其它σb（MPa）σs（MPa）δ5（%）Akv(J)(mm)J501(Q)E501T-1E71T-10.051.260.280.0090.01157050028(0℃)800.8/0.9/1.0CO2DC(+)适合于薄板全位置焊接。YJ502(Q)E501T-1E71T-10.051.260.310.0090.01159051028(-20℃)1161.2/1.4/1.6CO2DC(+)***全位置焊接.YJ70-1(Q)E500T-1E70T-10.071.460.390.0120.014Ni0.86Mo0.1662054026(-18℃)702.0/2.4CO2DC(+)用于船舶、桥梁、车辆等***焊接。YJ50MX(Q)E500T-1E70T-10.041.490.350.0110.01256048027(-20℃)900.8/0.9/1.01.2/1.4/1.6CO2DC(+)平焊及平角焊用金属粉芯焊丝可连续焊三层清渣，抗气孔能力强。YJ507(Q)E500T-5E70T-50.051.290.320.0080.01156049028(-30℃)1101.2/1.4/1.6CO2或80%Ar+20%CO2DC(+)重要的低碳钢及相应强度的低合金钢的焊接。)