Steel Shots & Grits are made of tempered martensite, with moderate hardness, excellent elasticity, wear-resistant, give less dust, longer recycle life, low cost, extensively used for shot peening to give residual stress in the surface layer of components for fatigue life enhancement and suppression of stress corrosion cracking and descaling and cleaning up surfaces of castings, steel parts and mechanical work-pieces prior coating. They are also extremely ideal materials for cutting granite. Chemical-Physical Characteristics. Item Steel Shots GP Steel Grits GL Steel Grits GH Steel Grits Chemical composition C: 0.85 1.20; Mn: 0.60 - 1.20 Si: 0.40 1.20; S: 0.05; P: 0.05 Metallographic Struture Even Tempered Martensite Density 7.2g/cm3 Hardness  ±3HRC 40-50HRC 42-45HRC 56-60HRC 63-65HRC
Available sizes steel shot   S 70  ( 0.425 -  0.125 Micron)   S 110 ( 0.600 -  0.180  Micron)   S 170 ( 0.850 -  0.355  Micron)   S 230 ( 1.000 -  0.500  Micron)   S 280 ( 1.180 -  0.600  Micron)   S 330 ( 1.400 -  0.710  Micron)   S 390 ( 1.700 -  0.850  Micron)   S 460 ( 2.000 -  1.000  Micron)   S 550 ( 2.000 -  1.180  Micron)   S 660 ( 2.360 -  1.400  Micron)   S 780 ( 2.800 -  1.700  Micron)   S 930 ( 3.350 -  2.000  Micron)     Steel grit   G 120 ( 0.300 - 0.075  Micron)   G 80 ( 0.425 - 0.125   Micron)   G 50 ( 0.710 - 0.180   Micron)   G 40 ( 1.000 - 0.300   Micron)   G 25 ( 1.180 - 0.425   Micron)   G 18 ( 1.400 - 0.710   Micron)   G 16 ( 1.700 - 1.000   Micron)   G 14 ( 2.000 - 1.180   Micron)   G 12 ( 2.360 - 1.400   Micron)   G 10 ( 2.800 - 2.000  Micron)