弹簧钢和轴承钢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船体结构用钢U51222 U51212 U51218 U51188 A32 L34402 D32 L34404 E32 L34405 F32 L34407 A36 L34902 D36 L34904 E36 F36 A40 E10 F40 Q235q Q345q Q375q Q420q