Products Steel Shot Chemical Composition C 0.70-1.20% Mn 0.35-1.20% Si 0.40-1.20% S ¡Ü0.05% P ¡Ü0.05% Microhardness Normal:40-50HRC (377-09HV) Special:52-56HRC (543-620HV) Special:56-60HRC (620-713HV) Hardness Deviation Max Deviation ¡À3.0HRC Microstructure Tempered Martensite or Sorbite Density 7.2g/cm3