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[Material Data]
                    GB and International Standard Material Comparison Table 1





                 ■ Carbon Steel for Mechanical Structure and Alloy Steel Types
                        Relevant Steel Types of Domestic and Foreign Specifications  Relevant Steel Types of Domestic and Foreign Specifications
                        ISO  Material JIS   AISI  BS  DIN EN 10084 NF A35-551  ГOCT  ISO  Material JIS   AISI  BS  DIN EN 10084 NF A35-551  ГOCT
                   GB  683/1,10,11 5)  Symbol  JIS  SAE  BS EN 10083- 1,2 DIN EN 10083-1,2 NF EN 10083-1,2  4543  GB  683/1,10,11 5)  Symbol  JIS  SAE  BS EN 10083- 1,2 DIN EN 10083-1,2 NF EN 10083-1,2  4543
                                                                                      970 Part1,3
                                          970 Part1,3
                                          040A10             40CrNi  -       SNC236  -  -  -    -  40XH
                  10 Steel  C10  S10C  1010  045A10  C10E  XC10  -  12CrNi2  -  JIS G 4102  SNC415  -  -  -  -  -
                                              C10R
                                          045M10             30CrNi3  -  Nickel   SNC631  -  -  -  -  30XH3A
                   -    -        S12C  1012  040A12  -  XC12  -  12Cr2Ni4  15NiCr13  Chromium   SNC815  -  655M13  15NiCr13  -  -
                                                                                       -
                  15 Steel  C15E4  S15C  1015  055M15  C15E  -  -  -  -  Steel  SNC836  8615  805A20  -  -  -
                                                                                  -
                      C15M2
                                              C15R
                  15 Steel  -    S17C  1017  -  -  XC18  -   20CrNiMo  20NiCrMo2  SNCM220  8617  805M20 20NiCrMo2  20NCD2
                                          070M20  C22  C22       20NiCrMoS2       8620  805A22 20NiCrMoS2  -
                  20 Steel  -    S20C  1020  C22  C22E  C22E  -  41CrNiMo2        8622  805M22
                                          C22E
                                                                                  8637
                                          C22R  C22R  C22R    -  41CrNiMoS2  JIS G 4103   SNCM240  8640  -  -  -  -
                  20 Steel  -    S22C  1023  -  -   -    -    -    -   Nickel   SNCM415  -  -  -  -  -
                      C25                 C25  C25  C25       -    -   Chromium   SNCM420  4320  -  -  -  20XH2M(20XHM)
                  25 Steel  C25E4  S25C  1025  C25E  C25E  C25E  -  -  -  Molybdenum  SNCM431  -  -  -  -  -
                      C25M2               C25R  C25R  C25R    -    -         SNCM439  4340  -  -  -  -
                  25 Steel  -    S28C  1029  -  -   -   25Г   -    -   Steel  SNCM447  -  -  -  -   -
                                          080A30              -    -         SNCM616  -  -  -   -   -
                      C30                 080M30  C30  C30    -    -         SNCM625  -  -  -   -   -
                  30 Steel  C30E4  S30C  1030  C30  C30E  C30E  30Г  -  -    SNCM630  -  -  -   -   -
                      C30M2               C30E  C30R  C30R                   SNCM815
                                                                                           -
                                          C30R                -    -              -    -  17Cr3  -  15X -
                  30 Steel  -    S33C  -   -    -   -   30Г   15Cr  -        SCr415  -  -  17CrS3  -  15XA
                      C35                 C35  C35  C35           20Cr4
                  35 Steel  C35E4  S35C  1035  C35E  C35E  C35E  35Г  20Cr  20CrS4  SCr420  5120  -  -  -  20X
                      C35M2  JIS G 4051   C35R  C35R  C35R        34Cr4           5130  34Cr4  34Cr4  34Cr4
                  35 Steel  -  Carbon   S38C  1038  -  -  -  35Г  30Cr  34CrS4  SCr430  5132  34CrS4  34CrS4  34CrS4  30X
                      C40   Steel for     080M40  C40  C40        34Cr4  JIS G 4104
                  40 Steel  C40E4  Mechanical  S40C  1039  C40  C40E  C40E  40Г  35Cr  34CrS4  Chromium   SCr435  5132  37Cr4  37Cr4  37Cr4  35X
                                                                                          37CrS4
                                                                                               37CrS4
                                      1040
                                          C40E
                                                                                      37CrS4
                                                                  37Cr4
                      C40M2  Structure    C40R  C40R  C40R        37CrS4  Steel
                  40 Steel  -    S43C  1042  080A42  -  -  40Г    37Cr4               530M40  41Cr4  41Cr4
                                      1043
                                                                  37CrS4
                      C45                 C45  C45  C45       40Cr  41Cr4    SCr440  5140  41Cr4  41CrS4  41CrS4  40X
                                                                                      41CrS4
                  45 Steel  C45E4  S45C  1045  C45E  C45E  C45E  45Г  41CrS4
                                      1046
                      C45M2               C45R  C45R  C45R    45Cr  -        SCr445  -  -  -    -  45X
                  45 Steel  -    S48C  -  080A47  -  -  45Г  15CrMo  -       SCM415  -  -  -    -   -
                      C50                 080M50  C50  C50    -   18CrMo4    SCM418  -  -  18CrMo4  -  20XM
                                                                                         18CrMoS4
                                                                  18CrMoS4
                  50 Steel  C50E4  S50C  1049  C50  C50E  C50E  50Г  20CrMo  SCM420   708M20       20XM
                                          C50E
                      C50M2               C50R  C50R  C50R   20CrMnMo  -     SCM421  -  -  -    - -  -
                                                                   -
                                                                                  -
                                                                                           -
                  50 Steel  -    S53C  1050  -  -   -   50Г  30CrMo  -  JIS G 4105   SCM430  4131  -  -  -  30XM
                                      1053
                                                                                                   30XMA
                      C55                 070M55  C55  C55    -    -   Chromium   SCM432  -  -  -  -  -
                  55 Steel  C55E4  S55C  1055  C55  C55E  C55E  -  35CrMo  34CrMo4  Molybdenum  SCM435  4137  34CrMo4  34CrMo4  34CrMo4  35XM
                                                                  34CrMoS4
                                                                                     34CrMoS4 34CrMoS4 34CrMoS4
                                          C55E
                      C55M2                   C55R  C55R
                                          C55R                         Steel         708M40
                      C60                 C60  C60  C60           42CrMo4         4140  709M40  42CrMo4  42CrMo4
                  55 Steel  C60E4  S58C  1059  C60E  C60E  C60E  60Г  40CrMnMo  42CrMoS4  SCM440  4142  42CrMo4  42CrMoS4 42CrMoS4  -
                                      1060
                      C60M2               C60R  C60R  C60R                           42CrMoS4
                   -    -        S09CK  -  045A10  C10E  XC10  -  -  -       SCM445  4145  -  -  -  -
                                          045M10
                                                                                  4147
                   -    -        S15CK  -  -  C15E  XC12  -   -    -         SCM822  -  -  -    -   -
                   -    -        S20CK  -  -    -  XC18  -    -    -   JIS G 4107   SNB5  501  -  -  -  -
                  20Mn2  22Mn6   SMn420  1522  150M19  -  -  -    42CrMo4  High Temperature   4140  708M40
                  30Mn2  -  JIS G 4106   SMn433  1534  150M36  -  -  30Г2  -  42CrMoS4  Alloy Steel Bolt   SNB7  4142  709M40  42CrMo4 2) 42CrMo4 4)  -
                                                                                     42CrMo4 1)
                                                        35Г2
                                                                                  4145
                            Manganese
                  35Mn2  36Mn6  Steel and   SMn438  1541  150M36  -  -  35Г2  -  -  Material  SMB16  -  40CrMoV4-6 1) 40CrMoV47 3) 40CrMoV4-6 4)  -
                                                        40Г2
                            Chromium Man-                     -    -   JIS G 4108   SNB21-1~5  -  40CrMoV4-6 1) 40CrMoV47 3) 40CrMoV4-6 4)  -
                  40Mn2  42Mn6  ganese Steel   SMn443  1541  -  -  -  40Г2  -  42CrMo4  Bars for   SNB22-1~5  4142H  -  42CrMo4 2)  -  -
                                                                  42CrMoS4
                                                        45Г2
                  20CrMn  -  for Mechanical   SMnC420  -  -  -  -  -  -  -  Special Alloy  SNB23-1~5  E4340H  -  -  -  -
                   -    -   Structure  SMnC443  -  -  -  -  -  -   -   Steel Bolts  SNB24-1~5  4340  -  -  -  -
                            JIS G 4202                       Cautions 1) BS  EN  10259
                 38CrMoAI 41CrAIMo74  Aluminum   SACM645  -  -  -  -  -           2) DIN  1654 Part 4
                            Chromium Mo-
                            lybdenum Steel                            3) DIN  17240
                  20Mn2  22Mn6   SMn420H  1522H  -  -  -  -           4) NF  EN  10259
                  30Mn2  -       SMn433H  -  -  -   -    -         5) ISO683-1, 10 and 11 have been translated into JIS as JIS G 7501, G 7502 and G 7503.
                  35Mn2  36Mn6   SMn438H  1541H  -  -  -  -
                  30Mn2  42Mn6   SMn443H  1541H  -  -  -  -  ISO: International Organization for Standardization
                   -    -        SMnC420H  -  -  -  -    -   AISI: American Iron and Steel Institute
                   -    -        SMnC443H  -  -  17Cr3  -  -  SAE: Society of Automotive Engineers
                                                -
                                                             BS: British Standards
                   -    -        SCr415H  -  -  17CrS3  -  15X  DIN: Deutsches Institut für Nörmung
                  20CrH  20Cr4   SCr420H  5120H  -  -  -  20X  EN: European Standards
                                                             NF: Norme Francaise
                      20CrS4
                      34Cr4           5130H  34Cr4  34Cr4  34Cr4  ΓOCT: Russian National Standard
                   -  34CrS4     SCr430H  5132H  34CrS4  34CrS4  34CrS4  30X
                      34Cr4                                    Names of Tool Steels
                      34CrS4              37Cr4  37Cr4  37Cr4
                   -  37Cr4  JIS G 4052   SCr435H  5135H  37CrS4  37CrS4  37CrS4  35X
                      37CrS4  Structural                       Rolled Steel for General Structure……SS400   Steel (Structure)·Structure·400N/mm 2
                      37Cr4  Steel with                        Carbon Steel for Mechanical Structure  …S45C   Steel·0.45%C
                  40CrH  37CrS4  Guaranteed  SCr440H  5140H  41Cr4  41Cr4  41Cr4  40X  Chrome Molybdenum Steel  …………SCM435   Steel·Cr·Mo 435
                      41Cr4               41CrS4  41CrS4  41CrS4
                      41CrS4  Quenching                        Nickel Chrome Molybdenum Steel  ………SNCM220  Steel·Ni·Cr·Mo 220
                   -    -   Perfor-  SCM415H  -  -  -  -  -
                      18CrMo4  mance          18CrMo4          Carbon Tool Steel   SK105………Steel·Tool·Type105
                   -  18CrMoS4   SCM418H  -  -  18CrMoS4  -  -
                 20CrMnMoH  -  (H-shaped   SCM420H  -  708H20  -  -  -      (Old SK3)
                            Steel)
                      34CrMo4         4135H  34CrMo4  34CrMo4  34CrMo4  Alloy Tool Steel   SKS3  ………Steel·Tool·Special·Type 3
                   -  34CrMoS4   SCM435H  4137H  34CrMoS4 34CrMoS4  34CrMoS4  -
                      42CrMo4         4140H  42CrMo4  42CrMo4  42CrMo4  Alloy Tool Steel   SKD11  ……Steel·Tool·Dies·Type 11
                   -  42CrMoS4   SCM440H  4142H  42CrMoS4 42CrMoS4  42CrMoS4  -  High-Speed Tool Steel  SKH51  ……Steel·Tool·High Speed·Type 51
                   -    -        SCM445H  4145H  -  -  -  -    High Carbon Chrome Bearing Steel  ……SUJ2   Steel·Use·Bearing·Type 2
                                      4147H
                   -    -        SCM822H  -  -  -   -    -     Stainless Steel   SUS304 ……Steel·Use·Stainless·Type 304
                  12CrNi2  -     SNC415H  -  -  -   -    -
                  30CrNi3  -     SNC631H  -  -  -   -    -     Gray Cast Iron   FC250………Ferrum (Iron)·Cast·250N/mm 2
                  12CrNi3  15NiCr13  SNC815H  -  655H13  15NiCr13  -  -
                 20CrNiMo  20NiCrMo2  SNCM220H  8617H  805H17  -  20NCD2  -
                                          805H20
                                      8620H
                      20NiCrMoS2      8622H  805H22
                   -    -        SNCM420H  4320H  -  -  -  -
                                                                                                        B-026
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