Cast Steel Shot and Grit Steel Shot | Angular Shot | Steel Grit | Features and Benefits   National Metal Abrasive produces high quality cast steel shot and grit used for a wide range of applications, from sand removal for foundry products to shot peening in the aeronautics industry. Steel abrasive comes in round (shot) or angular (grit) form, ranging from 0.004 to 0.11 in. in size.  It is produced by the atomization of molten steel, followed by a series of thermal and mechanical treatments in order to give the product is final characteristics. The production process is highly controlled and the plant has recently upgraded to ISO 9001:2000 Registration for the high quality of its products.   Cast Steel Shot GP Angular Shot Cast Steel Grit Hypereutectoid steel in a fully heat treated condition Uniform structure of finely tempered martensite The above combination provides optimum resilience and resistance to fatigue Used to get a smoother peened surface Starts out angular but quickly rounds-up into a ball Produced by crushing specially heat treated shot pellets Behavior performance depends on the hardness used: GB - More aggressive than shot and GP Angular Shot GL - Harder and more aggressive GH - Most aggressive GR - Special Granite Cutting Product Screening, specs and additional information SAE specifications Screening, specs and additional information SAE specifications Screening, specs and additional information SAE specifications MSD Sheet (pdf) Download Adobe Acrobat Reader to view PDF MSD Sheet (pdf) MSD Sheet (pdf) Features and benefits of using National Metal Abrasive products World wide reputation for product and service superiority ISO 9001:2000 Quality Registration No Chloride contaminants added during the manufacturing process Sole business in metallic abrasives Technical Assistance Centers Sales Force uses a technically oriented sales method Separate field Technical Service Group The finished product exceeds industry specifications for size, shape, density, chemistry, microstructure and hardness "No Chlorides Added" Abrasives National Metal Abrasive cast steel shot and grit is manufactured with no addition of cosmetic chemical coatings of any kind.  No soluble salts, in form of nitrites or chlorides, are introduced into the manufacturing process.  In fact, National Metal Abrasive's unique heat treatment methods of air quenching eliminate the potential of exposure to non-visible, soluble contaminants which may be present in alternate, water-quench practices. Air quenching, as applied by National Metal Abrasive, provides contaminant-free surfaces and superior particle integrity with minimal stress cracking. SAE Specifier ISO Certificate