Black Silicon Carbide (C)

Black silicon carbide is produced at high temperature in an electric resistance type furnace with quarts sand and petroleum coke as its main raw materials.

Its hardness is between fused alumina and synthetic diamond. Mechanical intensity of it is higher than fused alumina. It is brittle and sharp and has electrical and heat conductivity in some degree.

The abrasives made of it are suitable for working on cast iron, non-ferrous metal, rock, leather, rubber, etc. It is also broadly used as refractory and metallurgical additive.

Chemical Composition (weight %)

Grit Size | SiC | FC | Fe2O3

12#-90# | >=98.50 | <=0.20 | <=0.2

100#-180# | >=98.00 | <=0.30 | <=0.18

220#-240# | >=97.00 | <=0.30 | <=1.2

Magnetic Content

Grit Size | Content %

16#-30# | <0.0250

36#-60# | <0.0210

70#-120# | <0.0180

150#-240# | <0.0120