Material Cross Reference Table  Steel Classification Japan China USA UK Germany France Russia JIS GB AISI / SAE BS DIN NF ГОСТ 08 040A10 C10E S10C 10 1010 045A10 C10R XC10 045M10 S12C 1012 040A12 XC12 S15C 15 1015 055M15 C15E C15R S17C 1017 XC18 070M20 C22 C22 S20C 20 1020 C22 C22E C22E C22E C22R C22R C22R S22C 1023 C25 C25 C25 S25C 25 1025 C25E C25E C25E C22R C25R C25R S28C 1029 25Г 080A30 080M30 C30 C30 S30C 30 1030 C30 C30E C30E 30Г C30E C30R C30R Carbon Steel for Machine Structural Use C30R S33C 30Г C35 C35 C35 S35C 35 1035 C35E C35E C35E 35Г C35R C35R C35R S38C 1038 35Г 080M40 C40 C40 S40C 40 1039 C40 C40E C40E 40Г 1040 C40E C40R C40R C40R S43C 1042 080A42 40Г 1043 1045 C45 C45 C45 S45C 45 1046 C45E C45E C45E 45Г C45R C45R C45R S48C 080A47 45Г 080M50 C50 C50 R S50C 50 1049 C50 C50E C50E 50Г C50E C50R C50R C50R Vc= π×Dm×n S53C 1050 50Г Information 1053 Technical 070M55 C55 C55 S55C 55 1055 C55 C55E C55E C55E C55R C55R C55R 1059 C60 C60 C60 S58C 60 1060 C60E C60E C60E 60Г C60R C60R C60R S09CK 045A10 C10E XC10 045M10 S15CK 15F C15E XC12 S20CK XC18 R7