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 0-325 mesh factory
