39MnCrB6-2 结构钢 S420G2+Q S420G2+M S460G1+Q S460G1+M S460G2+Q S460G2+M S355G1+N S355G13+N S355G13+Q S420G5+Q S460G5+Q S355G1+N S355G14+N S355G14+Q S355G14+N S355G15+Q S420G6+Q S460G6+Q S355G1 S355G1+N S355G4 S355G4+M S355G11 S355G11+N S355G11+M S355G12 S355G12+N S355G12+M S420G3 S420G3+M S420G4 S420G4+M S460G3 S460G3+M S460G4 S460G4+M
钢材特性:?此钢硬度均匀?,?因含硫量低更运涵电蚀?(?火花机?)?操作?,?容易达到镜面磨光?,?可作火焰加硬?,?表面镀铬及氧化处理?