... 1.50, Si 0.35, Mn 0.35, P≤0.030, S≤0.030, Cr 12.10, W ... 0.030, Cr 7.10, W ≤0.50,Mo 2.10, V 1.80Annealed Hardness: HB≤255Heat treatment temp ... , it is similar to O1 Modify ( ASTM), 1.2510(DIN)), SKS3(JIS)Chemical Composition: C 0.93 ... ornaments pressing mold6. CrWMn , it is similar to 1.2419(DIN)), SKS31(JIS)Chemical Composition: C 0. ... 0.40, Mn 1.00, P≤0.030, S≤0. 030, Cr 1.00, W 1.40,Annealed Hardness: HB ...