| Customization: | Available |
|---|---|
| Feature: | Long Time Materials |
| Refractoriness (℃): | 1770< Refractoriness< 2000 |
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Silicon carbide is an inorganic substance with a chemical formula of SiC. It is made by high temperature smelting of raw materials such as quartz sand, petroleum coke (or coal coke), and wood chips (salt is needed to produce green silicon carbide) through a resistance furnace. Silicon carbide also exists in nature, a rare mineral, moissanite. Among the non-oxide high-tech refractory materials such as C, N, and B, silicon carbide is the most widely used and most economical one.
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Grit Size
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Chemical Composition%(by weight)
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||
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SIC
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F.C
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Fe2O3
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|
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12#~90#
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≥99.00
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≤0.20
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≤0.20
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100#~180#
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≥98.50
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≤0.25
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≤0.50
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220#~240#
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≥97.50
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≤0.25
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≤0.70
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W63~W20
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≥97.00
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≤0.30
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≤0.70
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W14~W10
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≥95.00
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≤0.30
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≤0.70
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W7~W5
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≥94.00
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≤0.50
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≤0.70
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| Item | Black silicon carbide | Green silicon carbide |
| Basic mineral | α-SIC | α-SIC |
| Crystal system | hexagonal | hexahonal |
| Crystal color | Black | Green |
| Density | ≥3.12g/cm3 | ≥3.18g/cm3 |
| Mohs hardness | 9.15 | 9.15 |
| Micro hardness | HV3100-3280 | HV3200-3400 |
| Grinding ability(compared with diamond as one) | 0.25 | 0.28 |
| Liner expansion coefficient when 900ºC.α·10-6k-1 | 4.4 | 4.6 |
| Electrical resistivity | 3×105-3×107Ω.cm | 3×105-3×107Ω.cm |
1. 7*24 hours on-line service.
2. Continuously monitor customers' usage.
3. Engineers on site for after-sale retun visit and providing techinical support.
4. Strong production capacity and plenty of inventory to ensure further orders.
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