5易切削钢
Y12 Y12Pb Y15 Y15Pb Y20 Y30 Y35 Y40Mn Y45Ca
6 冷镦和冷挤压用钢
ML04Al 
ML08Al ML10Al ML15Al ML15 ML20Al ML20 ML18Mn ML22Mn
ML20Cr ML25 ML30 ML35 ML40 ML45 ML15Mn ML25Mn ML30Mn ML35Mn ML37Cr ML40Cr ML30CrMo ML42CrMo ML20B ML28B ML35B ML15MnB ML20MnB ML35MnB ML37CrB ML20MnTiB ML15MnVB ML20MnVB