品名类别AWS型号基本化学成份典型值（%）金属力学性能CMnSiCrMoNiNbWVσ0.2(MPa)δb(MPa)δ(%)UnionICr2WVER90S-G0.070.50.32.2---1.70.22850950-产品详细参数药皮性质：酸性焊条类型：结构钢焊条)