舞钢调质S420G1+QT技术标准
1、S420G1+QT化学成分分析牌号CSiMnPSNiCrMoCu≤0.140.15~0.55≤1.65≤0.02≤0.010≤0.7≤0.25≤0.25≤0.3S420G1+QTNbVTiAltNBCaPbCeqMax≤0.04≤0.08≤0.0250.015~0.055≤0.010≤0.0005≤0.005≤0.010≤0.42成分备注：As、Sn、Pb、Bi、Ca、B为残余元素；Cr+Mo+Ni+Cu≤0.…
