Silicon carbide
Black Silicon Carbide Carborundum
Black silicon carbide is a type of silicon carbide that is made from quartz sand, petroleum coke (or coal), and a small amount of sawdust or salt in an electric resistance furnace. The resulting ma...
DESCRIPTION
Black silicon carbide is a type of silicon carbide that is made from quartz sand, petroleum coke (or coal), and a small amount of sawdust or salt in an electric resistance furnace. The resulting material has a black color and is extremely hard and sharp, with a Mohs hardness of 9.3.
Black silicon carbide is primarily used as an abrasive material due to its hardness and abrasive properties. It is used in grinding wheels, sandpaper, and other abrasive products for cutting, grinding, and polishing metals, ceramics, and other hard materials.
In addition to its use as an abrasive material, black silicon carbide is also used in refractory materials and as a metallurgical additive. It is used to make refractory bricks and other high-temperature materials due to its high thermal conductivity and resistance to thermal shock. It is also used as a deoxidizing agent in the production of steel and other metals, and as an additive in the production of certain alloys.
| Purpose | Specification | Chemical Composition(%) | Magnetic material content(%)max | |||
| Abrasives grade | SICmin | F.Cmax | Fe2O3max | |||
| grain | 12-80 | 98 | 0.20 | 0.6 | 0.0023 | |
| 90-150 | 97 | 0.30 | 0.8 | 0.0021 | ||
| 180-220 | 97 | 0.30 | 1.2 | 0.0018 | ||
| micropowder | 240-4000 | 96 | 0.35 | 1.35 | – | |
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