Steel grit and shot are mainly used for blast cleaning, rust removal, shot peening, shot blasting, shot polishing, grit removal, pre-treatment. Specifications C: 0.85-1.20%, Mn: 0.60-1.20%, Si: 0.40-1.20%, S: 0.05%max, P:0.05%max Average Hardness: SS steel shot 40-50 HRC GP steel grit 42-50 HRC GL steel grit 56-60 HRC GH steel grit 63-66 HRC Hardness deviation: +/-3.0HRC Min density: 7.4g/cm3