raw material description grit size application
Brown Fused Aluminum Oxide (Corundum, Al2O3) Very hard material. Produced by electrically fusing mixture of calcined bauxite and iron borings in an arc furnace at high temperatures.
Chemical composition:
Al2O3       Fe2O3       TiO2     CaO
93-95%   0,5-1,3%    1,8%    0,6-1,3%
F8 - F220 grinding and cutting tools, sandpaper
Black Silicon Carbide (SiC) Extremely hard material. Produced through heating silica sand and carbon to high temperatures.
Chemical composition:
SiC           Fe              C
93-98%   0,2-1,5%   0,3-0,6%
F14 - F220 grinding and cutting tools, sandpaper