Chemical Composition The finished grit shall have the chemical compositions as follows : Carbon 0.85 - 1.20 % Silicon 0.40 - 1.50 % Manganese 0.35 - 1.20 % Phosphorus < 0.05 % Sulfur < 0.05 %

The steel grit is manufactured by crushing the fully hardened shot to granular grit form, screening and tempered to three different hardness range as follows :

The microstructure of steel grit shall be uniform martensite, tempered to a degree consistant with the hardness range, with fine, well distributed carbides, if any.

The density of steel grit shall be not less than 7.4 g/cc.