1、日本 JIS 标准结构用高强度铸钢JIS G5111（1991）a.结构用高强度铸钢的钢号与化学成分，见表 5-86。表 5-86 结构用高强度铸钢的钢号与化学成分（质量分数）（%）钢 号 C Si MnPSCr Ni MoSCC3 0.300.40 0.300.60 0.500.80 0.040 0.040 SCC5 0.400.50 0.300.60 0.500.80 0.040 0.040 SCMn1 0.200.30 0.300.60 1.001.60 0.040 0.040 SCMn2 0.250.35 0.300.60 1.001.60 0.040 0.040 SCMn3 0.30
2、0.40 0.300.60 1.001.60 0.040 0.040 SCMn5 0.400.50 0.300.60 1.001.60 0.040 0.040 SCSiMn2 0.250.35 0.300.60 0.901.20 0.040 0.040 SCMnCr2 0.250.35 0.300.60 1.201.60 0.040 0.040 0.400.80 SCMnCr3 0.300.40 0.300.60 1.201.60 0.040 0.040 0.400.80 SCMnCr4 0.350.45 0.300.60 1.201.60 0.040 0.040 0.400.80 SCMnM
3、3 0.300.40 0.300.60 1.201.60 0.040 0.040 0.20 0.150.35SCCrM1 0.200.30 0.300.60 0.500.80 0.040 0.040 0.801.20 0.150.35SCCrM3 0.300.40 0.300.60 0.500.80 0.040 0.040 0.801.20 0.150.35SCMnCrM2 0.250.35 0.300.60 1.201.60 0.040 0.040 0.300.70 0.150.35SCMnCrM3 0.300.40 0.300.60 1.201.60 0.040 0.040 0.300.7
4、0 0.150.35SCNCrM2 0.250.35 0.300.60 0.901.20 0.040 0.040 0.300.70 1.602.00 0.150.35b.结构用高强度铸钢的力学性能，见表 5-87。表 5-87 结构用高强度铸钢的力学性能力学性能（不小于）钢 号 b/MPa s/ Mpa(%)(%)硬度HBSSCC3ASCC3B52062026537013132020143183SCC5ASCC5B620690295440991515163201SCMn1ASCMn1B54059027539017173535143170SCMn2ASCMn2B59064034544016163
5、535163183SCMn3ASCMn3B64069037049013133030170197SCMn5ASCMn5B690740390540992020183212SCSiMn2ASCSiMn2B59064029544013173535163183SCMnCr2ASCMnCr2B59064037044013173035170180SCMnCr3ASCMnCr3B6406903904909132535183207SCMnCr4ASCMnCr4B6907404105409132025201223SCMnM3ASCMnM3B69074039049013133030183212SCCrM1ASCCrM1B59069039049013133030170201SCCrM3ASCCrM3B690740440540992525201217SCMnCrM2ASCMnCrM2B69074044054013133030201212SCMnCrM3ASCMnCrM3B740830540635992525212223SCNCrM2ASCNCrM2B780880590685992020223269 这类铸钢钢号末尾的字母：A正火+回火；正火温度 850950oC，回火温度 550650oC；B淬火+回火；淬火温度 850950oC，回火温度 550650oC； 屈服点或屈服强度。
