Black silicon carbide is mainly made of quartz sand,petroleum coke,smelted by above
2500 in the electric furnace , the hardeness is tetween corundum and diamond,the hardness
is superior to corundum, it has the fuction of conductivity and thermal conductivity.
It is suitable to prosses metals and non-metallic materials.Such as gray cast iron,non-ferrous
metals, stone,leather,rubber and so on . It also widely used in refractories,metallurgical
additives.

Sic:97, Fc:0.3Max , Fe2O3:1.2Max, Size:2-8MM,1-10MM,0-10MM.
Sic:90, Fc:1.0Max , Fe2O3:1.2Max, Size:2-8MM,1-10MM,0-10MM.
Sic:75, Fc:15Max , Fe2O3:1.0Max, Size:2-8MM,1-10MM,0-10MM.
Sic:65, Fc:20Max , Fe2O3:1.0Max, Size:2-8MM,1-10MM,0-10MM.
Sic:50, Fc:25Max , Fe2O3:1.2Max, Size:2-8MM,1-10MM,0-10MM.