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| CHEMICAL COMPOSITION The finished grit shall have the chemical compositions as follows : 
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| Standard Hardness The steel grit is manufactured by crushing the fully hardened shot to granular grit form, screening and tempered to three different hardness range as follow : 
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| Microstructure The microstructure of steel grit shall be uniform martensite, tempered to a degree consistent with the hardness range, with fine,well distributed carbides, if any. Density The density of steel grit shall be not less than 7.4 g/cc. | 
| SIZE | CODE | APPLICATION | 
|---|---|---|
| G-12 G-14 G-16 | GH-20 GH-17 GH-14 | Blast cleaning of large medium steel & iron castings.  | 
| G-18 G-25 G-40 | GH-12 GH-10 GH-7 | Granite cutting, Blast cleaning of castings,etching of rolls, cleaning of structure steels. | 
| G-50 G-80 G-120 | GH-4 GH-3 GH-2 | Cleaning of non-ferous casting and structure steels.  |