进口合金钢40CrMnMo7合金钢棒合金钢板品名中国美国日本德国英国法国前苏联*化组织GBASTJISDIN、DINENBS、BSENNF、NFENГ OCTISO 630牌号牌号牌号牌号牌号牌号牌号--合金结构钢20Mn21524SMn420P355GH0355GHP0355GH--22Mn615Cr5115SCr41517Cr3527A17--15x--20Cr5120SCr42020Cr420Cr4--20x20Cr430Cr5130SCr43034Cr434Cr434Cr430x34Cr440Cr5140SCr44041Cr441Cr441Cr440x41Cr445Cr5145SCr44541Cr441Cr441Cr445x41Cr430CrMo4130SCM43025CrMo425CrMo425CrMo430xM25CrMo435CrMo4317SCM43534CrMo434CrMo434CrMo435xM34CrMo442CrMo4140SCM44042CrMo442CrMo442CrMo438xM42CrMo438CrMoA1--SCM64541CrA1Mo7905M39--38x2MIoA41CrA1Mo750CrVA6150SCP1051CrV451CrV451CrV450xФA51CrV440CrMnMo41404142SCM44042CrMo442CrMo4708Mn4042CrMo4--42CrMo4各国合金钢的牌号对照表 合金钢的化学成分  SCM420 JIS合金结构钢(铬钼钢)主要化学成份%: C: 0.18-0.23 SI: 0.15-0.35 MN: 0.60-0.85 P: