... ) under ISO9001/SAE standard 6)Main technical indicators of steel shot Products Steel Grit ChemicalComposition C 0.70-1.20% Mn 0 ... finish. Good coverage.Blasting of grey iron, malleable iron, light steel castings, medium forgings, heat-treated parts and heavy mill scale ... .039"Average to heavy shot finish. Average coverage.Blasting of steel, heavy malleable iron and grey iron castings. Removal of scale ...