管状焊丝焊剂硬度化学成分（重量%）典型用途CCrSiMoMnFeWNiVB其他Delcrome103107545.1527.501.502.50Bal磨煤辊Multipass104431280.251.201.503.00Bal轧辊等堆焊过渡层及轴的修复Multipass105431450.504.001.100.502.75Bal拖拉机惰轮、矿车轮、导辊Multipass107431370.352.701.200.252.70Bal卷筒、拖拉机惰轮、矿车轮)