Silicon carbide has two commonly used base varieties, black silicon carbide and green silicon carbide, both of which belong to α-SiC.
① Black silicon carbide contains about 95% SiC, and its toughness is higher than that of green silicon carbide. It is mostly used for processing materials with low tensile strength, such as glass , ceramics, stone , refractory materials , cast iron and non-ferrous metals.
②Green silicon carbide contains more than 97% SiC and has good self-sharpening properties. It is mostly used for processing hard alloys , titanium alloys and optical glass , and is also used for fine grinding high-speed steel tools .
Physical properties:
| Color | green |
| Mohs Hardness | 9.15 |
| True Density | 3.9g/cm3 |
| Melting Point | 2250°C |
| Maximum service temperature | 1900°C |
Chemical content:
| product name | Granularity range | Chemical composition/% | ||
| SiC | F.C | Fe2O3 | ||
|
Silicon carbide |
4#-220# | ≥99.00% | ≤0.20% | ≤0.20% |
| 240#-600# | ≥98.50% | ≤0.40% | ≤0.40% | |
| 700#-4000# | ≥97.00% | ≤0.60% | ≤0.60% | |
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