SPFC 980Y SPFC 340H ASTM A366-91 17SMN20 35S20 35SMN20 44SMN28 46S20冷镦钢和冷挤压钢CC4X CC4A CC8XCC8A CC11A CC11X CC15X CC15K CC15A CC21K CC21A CE10 CE15E4 CE16E4 CE20E4 20CR4E 16MNCR5E 18CRMO4E 20NICRMO2E CE20E4 CE28E4 CE35E4 CE40E4 CE45E4 42MN6E 37CR2E 46CR2E 34CR4E 37CR4E 41CR4E 36MO3E 25CRMO4E 34CRMO4E 42CRMO4E 41CRNIMO2E 41NICRMO7E 31CRNIMO8E CE20BG1 CE20BG2 CE28B CE35B 35MNB5E 37CRB1E弹簧钢59SI7 56SICR7 61SICR7 55SICR63 55CR3 60CRMO31 60CRB3 60CRMO33 51CRV4 52CRMOV4100CR6 100CRMNSI4-4 100CRMNSI6-4 100CRMNSI6-6 100CRMO7 100CRMO7-4 100CRMNMOSI8-4-6 20CR3 20CR4 20MNCR4-2 17MNCR5 19MNCR5 15CRMO4 20CRMO4 20MNCRMO4-2 20NICRMO2 20NICRMO7 18CRNIMO7-6 18NICRMO14-6 16NICRMO16-5 C56E 56MN4 70MN4 43CRMO4 X47CR14 X65CR14 X108CRMO7 X89CRMOV18-1 80MOCRV42-16 13MOCRNI42-16-14 X82WMOCRV6-5-4 20CR3+H X75WCRV18-4-1 轴承钢 100CR6 100CRMNSI4-4 100CRMOSI6-6