... -1220 Temperings 550Secondary 64-67 HRCApplication: Steel for difficult and hi-speed cutting blades, blades which lay particular on durable3. W2Mo9Cr4VCo8 , it ... ), SKH2(JIS)Chemical Composition: C 0.75, Si 0.35, Mn 0.35, P≤0.030, S≤0.030, Cr 4.05, W18, V 1.10Annealed ... blades5. W9Mo3Cr4V Chemical Composition: C 0.83, Si 0.35, Mn 0.35, P≤0.030, S≤0.030, Cr 4.05, W 8.90, Mo ...