 Steel Classification Japan China USA UK Germany France Russia JIS GB AISI/ASTM BS DIN NF ГОСТ SK140 T13 C140E3U Y13 (SK1) SK120 T12 W1-111/2 C120E3U Y12 Carbon Tool Steel (SK2) SK105 T11 W1-10 C105W1 C105E2U Y11 (SK3) SK95 T10 W1-9 C90E2U Y10 (SK4) SK85 T8Mn W1-8 C80W1 C90E2U Y8Г (SK5) T9 C80E2U Y9 SK75 T8 C80W1 C80E2U Y8 (SK6) C70E2U SK65 T7 C70W2 C70E2U Y7 (SK7) SKH2 W18Cr4V T1 BT1 HS18-0-1 Р18 SKH3 W18Cr4VCo5 T4 BT4 S18-1-2-5 HS18-1-1-5 P18K5Ф2 SKH4 W18Cr4V2Co8 T5 BT5 HS18-0-2-9 P18K5Ф High Speed Tool Steel SKH10 W12Cr4V5Co5 T15 BT15 S12-1-4-5 HS12-1-5-5 SKH51 W6Mo5Cr4V2 M2 BM2 S6-5-2 HS6-5-2 P6M5 SKH52 CW6Mo5Cr4V2 M3-1 P6M5Ф3 W6Mo5Cr4V3 SKH53 CW6Mo5Cr4V3 M3-2 S6-5-3 HS6-5-3 P6M5Ф3 SKH54 M4 BM4 HS6-5-4 SKH55 W6Mo5Cr4V2Co5 M35 BM35 S6-5-2-5 HS6-5-2-5HC Р6М5К5 W7Mo5Cr4V2Co5 M41 SKH56 M36 SKH57 BT42 S10-4-3-10 HS10-4-3-10 SKH58 W2Mo9Cr4V2 M7 HS2-9-2 SKH59 W2Mo9Cr4VCo8 M42 BM42 S2-10-1-8 HS2-9-1-8 SKS11 F2 ХВ4 SKS2 105WCr6 105WCr5 ХВГ SKS21 W SKS5 SKS51 L6 SKS7 SKS8 Cr06 C140E3UCr4 13Х SKS4 5CrW2Si S1 6XB2C 6CrW2Si 5XB2CФ SKS41 4CrW2Si S1 4XB2C SKS43 W2-91/2 BW2 100V2 SKS44 W2-8 Alloy Tool Steel SKS3 9CrWMn 9ХВГ SKS31 CrWMn 105WCr6 105WCr5 ХВГ SKS93 SKS94 SKS95 8MnSi R SKD1 Cr12 D3 BD3 X210Cr12 X200Cr12 Х12 SKD10 Cr12Mo1V1 D2 X153CrMoV12 X12MФ SKD11 Cr12MoV D2 BD2 X153CrMoV12 X160CrMoV12 Vc= π×Dm×n SKD12 Cr5Mo1V A2 BA2 X100CrMoV5 SKD4 X32WCrV3 Information SKD5 3Cr2W8V H21 BH21 X30WCrV9-3 X30WCrV9 Technical SKD6 4Cr5MoSiV H11 BH11 X38CrMoV51 X38CrMoV5 4Х5МФС SKD61 4Cr5MoSiV1 H13 BH13 X40CrMoV51 X40CrMoV5 4Х5МФ1С SKD62 H12 BH12 X35CrWMoV5 3Х3М3Ф SKD7 4Cr3Mo3SiV H10 BH10 X32CrMoV33 32CrMoV12-18 SKD8 H19 BH19 SKT3 55CrNiMoV4 SKT4 5CrNiMo BH224/5 55NiCrMoV6 55NiCrMoV7 5ХНМ R13