Black silicon carbide (SIC) is made from quartz sand and carbon( anthracite coal tar or petroleum coke) in electric esistance furnace at high temperature. It has the characteristic of high hardness, excellent electrical and heat conductivity, low thermal expansion, and high abrasion resistance. Thus, SIC is the most suitable material of abrasives, refractories, deoxidizer of metallurgical, special ceramics, electric heating elements and so on.
Black silicon carbide abrasives feature high hardness, crispness and sharpness and have some electrical and thermal conductivity. Abrasive tools made of them are suitable to be used to process metallic and non-metallic materials with low tensile strength such as grey cast iron, brass, aluminum, building stone, leather and rubber. Besides, they can be used in refractory materials, electronics industry, etc.
Green silicon carbide powder features high hardness and crispness. Abrasive tools made of it are suitable to be used to process non-metallic materials such as hard alloy, optical glass, agate and ceramies. Besides, it can be used to manufacture high-grade refractory materials, electric heating elements and electric elements.
Grit No.
P series: P12-P2500
F series:F12-F1200
Other series: Japanese standard "12-"6000
American standard12"-1200*
Parameters:
Silicon Carbide (SiC), with following specifications:
|
Grade |
SiC (%) |
Fe2O3 (%) |
C (%) |
Hardness (%) |
Density |
|
Super Grade |
98.5 min |
0.2max |
0.2max |
9.2max |
3.21 |
|
1st Grade |
97.5 min |
0.3max |
0.6max |
9.0max |
3.21 |
|
2nd Grade |
88-90 |
2.5max |
3max |
8.5max |
3.21 |
|
3rd Grade |
70-75 |
- |
- |
- |
- |
|
Packaging and Size |
As clients’ demands. |
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