Black Silicon Carbide 53C. Grinding Grain F30 Description
The black color in silicon carbides is given by impurities, while the hardness of the material is comparable to diamond hardness. It is used mainly for grinding. Its grains have the form of plates, in work very brittle.
For black silicon carbide is characterized by:
the density of the material is 3.21 g/cm3;
microhardness of the material is 33 GPa;
SiC content - 96-99%;
high hardness, but also high brittleness;
high cutting ability;
high refractoriness and thermal conductivity;
electrical conductivity;
The Specification Of Black Silicon Carbide 53C. Grinding Grain F30
Typical physical properties of Granular Black silicon carbide F30 grit
| Hardness: | Mohs:9.2 |
| Melting Point: | dissociated at about 2300 °C |
| Maximum service temperature: | 1900℃ |
| Specific Gravity: | 3.2-3.45 g/cm3 |
| Bulk density(LPD): | 1.2-1.6 g/cm3 |
| Color: | Black |
| Particle shape: | Hexagonal |
| Modulus of Elasticity | 58-65×106 psi |
| Coefficient of Thermal Expansion | 3.9-4.5 x10-6/ ℃ |
| Thermal Conductivity | 71-130 W/MK |
Typical physical properties of Granular Black silicon carbide F30 grit
| SiC | 98.77% |
| Fe2O3 | 0.18% |
| F.C | 0.14% |
| Magnetic content | 0.011% |
Black silicon carbide 53C, 54C has a SiC content of 96 - 99%. Black silicon carbide is produced by reducing silicon dioxide in resistance furnaces.
Due to its high hardness and cutting ability, silicon carbide is used for the production of abrasive tools and for free grinding. It is essential for grinding cast iron, hard alloys, non-ferrous metals. It is widely used for grinding non-metallic materials (stone, glass).
Silicon carbide has high refractoriness and thermal conductivity, so it is widely used in industry in the manufacture of refractory products.
Silicon carbide has unique electrical properties, so it is used for production of high-voltage arresters and varistors, as well as silite heaters.
It is used in the metallurgical industry for deoxidizing steel, in the production of crucibles for casting non-ferrous and precious metals, for coating chutes and leaks.
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