The silicon carbide is excellent raw materials make good hardness and toughness, high efficiency and durability.

Black silicon carbide is produced at high temperature in electric resistance type furnace with quarts sand and petroleum coke as its main raw materials. Its hardness is between Aluminum Oxide and Synthetic Diamond. Mechanical intensity of it is higher than Aluminum Oxide. It is brittle and sharp and has electrical and heat conductivity in some degree.

It is suitable for make grinding wheels, cutting wheels, mounted wheels, oil stone, abrasive media, and also suitable for surface gringing, lapping or polishing. The abrasive products made of it are suitable for working on Cast Iron, Non-ferrous Metal, Rock, Leather, Rubber, Wood, ceramic, etc. It is also broadly used as high-grade refractory material and metallurgical additive. 

 

Brand	SiC	C	Si+Sio2	Fe2o3	Mgo	H2o
	≥	≤
SiC95	95	0.6	2	1.2	--	0.5
SiC90	90	3	5	1.5	--	0.5
SiC75	75	9	17	2	0.1	0.5
SiC65	65	11	23	4	0.15	0.5
SiC55	55	14	25	5	0.15	0.5
SiC45	45	18	30	7	0.15	0.5

silicon carbide