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Black Silicon Carbide
Extremely hard, sharp SiC grains for abrasives, refractories and metallurgy.
Black Silicon Carbide is produced from silicon quartz sand and petroleum coke electrofused at high temperature in an electrical resistance furnace. Grains are hexagonal crystals — extremely hard, sharp and friable — with outstanding electrical/thermal conductivity and low thermal expansion.
Send InquiryBlack Silicon Carbide (Abrasive)
Grits Available
- F12 to F220, P16–P220, #240 to #4000
- In accordance with FEPA / JIS / ANSI standards
- Other sizes / SiC 75% or 70% on request
Typical Applications
- Coated and bonded abrasives
- Grinding, blasting, lapping and polishing
- Slip-resistant pavement and flooring
Typical Chemical Composition (Macro Grit)
| Specification | SiC | Free C | Fe₂O₃ |
|---|---|---|---|
| #12 – #90 | ≥ 98.50% | ≤ 0.2% | ≤ 0.2% |
| #100 – #180 | ≥ 98.00% | ≤ 0.3% | ≤ 0.3% |
| #220 | ≥ 97.50% | ≤ 0.3–0.6% | ≤ 0.3–0.6% |
Black Silicon Carbide Micro-Powder
| Grains | SiC | Free C | Fe₂O₃ | pH | Bulk Density | Magnetic |
|---|---|---|---|---|---|---|
| #240 | ≥ 98.50 | ≤ 0.18 | ≤ 0.19 | 6–7.5 | 1.26 | 0.010 |
| #280 | ≥ 98.50 | ≤ 0.18 | ≤ 0.19 | 6–7.5 | 1.26 | 0.010 |
| #320 | ≥ 98.50 | ≤ 0.18 | ≤ 0.19 | 6–7.5 | 1.23 | 0.010 |
| #400 | ≥ 98.00 | ≤ 0.18 | ≤ 0.19 | 6–7.5 | 1.23 | 0.015 |
| #500 | ≥ 98.00 | ≤ 0.20 | ≤ 0.20 | 6–7.5 | 1.20 | 0.015 |
| #600 | ≥ 98.00 | ≤ 0.20 | ≤ 0.20 | 6–7.5 | 1.20 | 0.015 |
| #800 | ≥ 98.00 | ≤ 0.20 | ≤ 0.20 | 6–7.5 | 1.18 | 0.008 |
| #1000 | ≥ 98.00 | ≤ 0.20 | ≤ 0.20 | 6–7.5 | 1.15 | 0.008 |
| #1200 | ≥ 98.00 | ≤ 0.20 | ≤ 0.20 | 6–7.5 | 1.13 | 0.005 |
| #1500 | ≥ 98.00 | ≤ 0.20 | ≤ 0.20 | 6–7.5 | 1.12 | 0.005 |
| #2000 | ≥ 97.50 | ≤ 0.20 | ≤ 0.20 | 6–7.5 | 1.00 | 0.005 |
Granularity Distribution
| Grains | D0 < | D3 < | D50 | D94 > |
|---|---|---|---|---|
| #240 | 120.0 | 100.0 | 57.0 ± 3.0 | 40.0 |
| #280 | 110.0 | 80.0 | 48.0 ± 3.0 | 33.0 |
| #320 | 95.0 | 70.0 | 40.0 ± 2.5 | 27.0 |
| #400 | 70.0 | 55.0 | 30.0 ± 2.0 | 20.0 |
| #500 | 60.0 | 48.0 | 25.0 ± 2.0 | 16.0 |
| #600 | 50.0 | 38.0 | 20.0 ± 1.5 | 13.0 |
| #800 | 30.0 | 20.0 | 14.0 ± 1.0 | 9.0 |
| #1000 | 25.0 | 19.0 | 11.5 ± 1.0 | 7.0 |
| #1200 | 20.0 | 18.0 | 9.5 ± 1.0 | 5.5 |
| #1500 | 19.0 | 17.0 | 8.0 ± 0.6 | 4.5 |
| #2000 | 17.0 | 15.0 | 6.7 ± 0.6 | 4.0 |
Black Silicon Carbide (Refractory)
Grits Available
- mm: 0-1, 1-3, 3-5, 0-10, 1-10
- Mesh: 0-25, -100, -180, -200, -325
Typical Applications
- Refractories, kiln furniture, bricks, electric heating elements
- High-performance automobile braking systems
- Metallurgical additive; special refractory shapes and crucibles
Specification (Refractory Grades)
| Index | SiC 98 | SiC 95 | SiC 90 | SiC 88 |
|---|---|---|---|---|
| SiC | ≥ 98% | ≥ 95% | ≥ 90% | ≥ 88% |
| Free C | ≤ 0.3% | ≤ 0.8% | ≤ 2.5% | ≤ 3.0% |
| Fe₂O₃ | ≤ 0.3% | ≤ 0.8% | ≤ 2.5% | ≤ 3.0% |
| SiO₂ | ≤ 0.3% | ≤ 0.8% | ≤ 2.5% | ≤ 3.0% |
Packing Available
We can provide various kinds of packing
- 1MT big bags
- 25kg × 40 PP bags into 1MT big bags
- 25kg × 40 PP bags on Standard wood pallet or Euro-pallet
- 25kg × 40 craft paper bags on Standard wood pallet or Euro-pallet
- Custom packing available on request (marks, labels, etc.)
Important: The technical data herein is believed to be accurate. It is offered for your consideration, investigation and verification. Buyer assumes all risk of use, storage and handling of the product.