1.The special steel:10Cr15MoVCo,Corresponding to JAPAN JIS VG10 2.The Chemical Composition Of Special Steel 10Cr15MoVCo: C:0.9-1.1% ;Cr:14.5-15.5%;Mo:0.80-1.20%;V:0.20-0.40%;Co:0.9-1.1% 3.The special steel can be customized as your request in different shape and size. Please feel free to contact us if you are interested in any product from our store by leaving your email.