渗氮结构钢 24CrMo13-6 31CrMo12 31CrMoV9 33CrMoV12-9 40CrMoV13-9 32CrAlMo7-10 34CrAlMo5-10 41CrAlMo7-10 34CrAlNi7 调质结构钢 C22E C22R C35 C35E C35R C40 C40E C40R C45 C45E C45R C50E C50R C55 C55E C55R C60 C60E C60R 28Mn6 34Cr4 34CrS4 37Cr4 37CrS4 38Cr2 41Cr4 41CrS4 46Cr2 25CrMoS4 25CrMo4 34CrMo4 34CrMoS4 50CrMo4 20MnB5 30MnB5 38MnB5 27MnCrB5-2 33MnCrB5-3 39MnCrB6-2 30CrNiMo9 30CrNiMo16-6 34CrNiMo6 35NiCr6 36NiCrMo16 39NiCrMo3 51CrV4 三易切削钢 易切削结构钢11SMn30 11SMnPb30 11SMn37 11SMnPb37 10S20 10SPb20 15SMn13 35S20 35SPb20 36SMn14 36SMnPb14 38SMnPb14 38SMn28 44SMn28 44SMnPb28 46S20 46SPb20