... )Chemical Composition: C 1.50, Si 0.35, Mn 0.35, P≤0.030, S≤0.030, Cr 12.10, W ≤0 ... .40,Mo 0.85 V 0.6Annealed Hardness: HB≤255Heat treatment temp ... ≤0.030, S≤0.030, Cr 7.10, W ≤0.50,Mo 2.10, V 1.80Annealed Hardness: HB≤255Heat treatment temp: Hardening 1100 ... .75, P≤0.030, S≤0.030, Cr 5.10, Mo 1.10, V 0.30Annealed Hardness: HB≤235Heat treatment temp: Hardening 940-960 ...