5易切削鋼

　　Y12?? Y12Pb? Y15? Y15Pb? Y20? Y30? Y35? Y40Mn? Y45Ca

　　6 冷鐓和冷擠壓用鋼

　　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

　　7 彈簧鋼和軸承鋼

　　65? 70? 85?? 65Mn? 55SiMnVB? 60Si2Mn?? 60Si2MnA? 60Si2CrVA 55SiCrA? 55CrVA?

　　55CrMnA?? 60CrMnA? 60CrMnBA? 30W4Cr2VA

　　GCr4? GCr15? GCr15SiMn?? GCr15SiMo? GCr18Mo? G20CrMo? G20CrNi2Mo? G20CrNiMo? G20Cr2Ni4? G10CrNi3Mo? G20Cr2Mn2Mo? 9Cr18Mo? 9Cr18? 1Cr18Ni9Ti?