... 4Cr5MoSiV (GB), it is similar to H11 (ASTM), 1.2343(DIN), SKD62 (JIS)3. 3Cr2MoW8V (GB), it is similar to ... W6Mo5Cr4V2 (GB), it is similar to M2( ASTM), S6-5-2(DIN), SKH51(JIS)Chemical Composition: C 0.85, Si 0.38 ... (GB), it is similar to M2( ASTM), S6-5-2(DIN), SKH51(JIS)Chemical Composition: C 0.85, Si 0.38 ... (GB), it is similar to M2( ASTM), S6-5-2(DIN), SKH51(JIS)Chemical Composition: C 0.85, Si 0.38 ...