Black Silicon Carbide
Black silicon carbide is produced from silica sand and carbon feedstock in a resistance furnace. The catalog provides silicon carbide and impurity limits for several grain ranges. Select the grain against the workpiece, abrasive size and bond system.
Specifications, application and selection
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Physical and product data
The following values are transcribed from the product catalog. Confirm acceptance criteria before supply.
| Item | Details |
|---|---|
| Crystal system | Hexagonal |
| Mohs hardness | 9.2–9.5 |
| Bulk material density | 3.2–3.45 g/cm³ |
| Packing density | 1.34–1.6 g/cm³ |
| Specific-density entry in source | 3.20–3.25 g/cm³ |
Grades and chemical data
Percentages follow the source grade table. Confirm the required size and batch specification.
| Grade | SiC ≥ % | Fe₂O₃ ≤ % | F.C ≤ % |
|---|---|---|---|
| Aggregate 0–1 / 1–3 / 3–5 / 5–8 mm | 99 | 0.4 | 0.2 |
| 16#–90# | 99 | 0.4 | 0.2 |
| 100#–180# | 98.5 | 0.5 | 0.25 |
| 200#–240# | 98 | 0.55 | 0.3 |
Application review and samples
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