black silicon carbide factory

high hardness, small coefficient of expansion, brittle property and good thermal conductivity competitive price good service

Properties

Black silicon carbide is a nonmetallic mineral product formed with quartz sand (SIO2), anthracite or petroleum coke (C) as raw materials at a high temperature of 1800 Celsius or above, featured by high hardness, small coefficient of expansion, brittle property and good thermal conductivity, widely used as a deoxidant in abrasives, grinding of electronics, refractory, special ceramics, foam ceramics, modification of coating and plastics, auto parts, war industry and aviation, steelmaking, etc.

Black silicon carbide is classified into black silicon carbide sand and black silicon carbide powder.

Applications

Our black silicon carbide is mainly used in steelmaking and ironmaking industry and refractory industry, such as stemming, trough material, silicon carbide brick and other formed and amorphous products.

 

Chemical composition should comply with the follow table
Granularity range		SiC ≥	Free carbon ≤	Fe2O3%  ≤
Black silicon carbide	Crude lump	98.5	0.3	0.8
	Sand	98.0	0.3	0.8
	150 mesh	97.0	0.4	1.2
	200 mesh	97.0	0.4	1.2
	325 mesh	97.0	0.4	1.2
	0-325 mesh	90.0	2.0	1.5
	Sand	90.0	2.0	1.5

Note: Silicon carbide sand and powder for deoxidization of steelmaking in specification of 50, 60, 70, 80 and 90 can be customized.

black silicon carbide factory