SK7 alloy structural steel

    SK7 0.6 carbon alloy steel of high carbon steel, hardened after use, SK7 excellent wear resistance, and is cheaper tool steel.

      There is some need for sliding parts, and production of high hardness cold mold parts. sk7 be flexible material commonly used in parts, stamping with spcc similar characteristics, hardness and rebound slightly stronger, often punching and then heat treated to achieve the required hardness and elasticity. Density: 7.93g/cm3
 
Supply hardness:
 
Soft state: HV190 the following
 
Semi-hard: HV240-280
 
Full Hard: HRC42-60
 
Production standards: Japan JIS standard
 
Chemical composition:
 
Carbon (C) 0.60 ~ 0.70 Manganese (Mn) 0.50 Silicon (Si) 0.35 Phosphorus (P) 0.030 sulfur (S) 0.030