日本日立SKD61  

主要化学成分%：                   C:0.35~0.42                                                                                    Cr:4.80~5.50                                                               Mn:0.30~0.50                                                                                        Mo:1.20~1.60                                                                                       Si:0.80~1.20                                                                                                                V:0.50~1.10