Specifications: S780/SS2.5 S660/SS2.0 S550/SS1.7 S460/SS1.4 S390/SS1.2 S330/SS1.0 S280/SS0.8 S230/SS0.6 S170/SS0.5 S110/SS0.3 S70/SS0.2
Chemical Composition: C 0.70%~1.20% Mn 0.35%~1.20% Si ≥0.40% S ≤0.05% P ≤0.05%
Hardness: conventional 40~50HRC specific 42~56HRC specific 56~60HRC
Hardness Deviation: Max Deviation ±3.0HRC
Durability: 2000~2800 Times
Microstructure: Tempered Martensite or Sorbite
Density: 7.4g/cm³
Bulk Density: 4.4g/cm³