Cast steel angular grit produced by crushing specially heat treated steel shot Its behaviour in service depends聽 on hardness - a characteristic readily modified by suitable heat treatment. GP Steel Grit is used mainly in wheel blast machines for cleaning or preparation work on special surfaces In addition, GL and GH Steel Grit are equally suitable for use in wheelblast machines and in most cases air聽 blast equipment. Steel grit Application: auto- and manual blasting of metal products (castings, forgings, steel constructions, pipelines); shot-peening of heavy-loaded parts (shafts, carriage springs, springs, cog-wheels) ; surface treatment of stone, granite-, marble- and natural stone-cutting; cleaning of cutting tools; surface preparation of parts for galvanic coatings, enameling; surface preparation of oil and gas pipelines for multi-layer coatings; cleaning of oil-storages and reservoirs SAE J444 sizes: G10 G12 G14 G16 G18 G25 G40 G50 G80 G120 Steel Grit Specification: Shape : angular Hardness :GP:42 ~ 50HRC;GL:56 ~ 60HRC;GH:63 ~ 66HRC Density : 7.4 g/cm3 Durability : >3000 times Certificate ISO9001,SAEJ444,SGS Chemical Composition: Cr 0.60-1.60% C 0.70 -1.20% Mn 0.6 -1.20% Si 0.40 -1.20% S