Silicon Carbide - Black
Sharp, fast-cutting abrasive for grinding cast iron, aluminum, and non-metallic materials
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Hardness
3100-3280 kg/mm²
Knoop
Grit Range
6-1200 & fine powder grades (F, FF, FFF)
Availability
24-Hour Shipment
Minimum Order
10 lbs per grit
Product Overview
Black silicon carbide is a sharp, fast-cutting abrasive with excellent electrical and heat conductivity. Its brittle, angular grain structure creates fresh cutting edges during use, making it ideal for grinding materials with low tensile strength.
Silicon carbide’s relatively high thermal conductivity helps dissipate heat, while its chemical stability supports consistent performance across a wide range of applications.
Key Characteristics
- Sharp, angular grain - Aggressive cutting action
- Brittle fracture - Self-sharpening during use
- High thermal conductivity - Effective heat dissipation
- Chemically stable - Resists degradation
- Electrically conductive - Suitable for specialized applications where conductivity is required
When to Use
Best for grinding materials with low tensile strength:
- Cast iron and grey iron
- Aluminum, brass, bronze
- Stone, marble, granite
- Ceramics and glass (general applications)
- Rubber and leather
- Non-metallic materials
ⓘ Note: Not recommended for high-tensile strength steels (use Aluminum Oxide instead)
Common Applications
Abrasive Applications
- Grinding wheels and bonded abrasives
- Coated abrasives (sandpaper, belts)
- Lapping and polishing compounds
- Tumbling and vibratory finishing
- Specialty pressure blasting media
Non-Abrasive Applications
- Refractory materials and products
- Electrical and electronic components (specialty applications)
- Friction materials
- Wear-resistant parts and coatings
Technical Specifications
Physical Properties
PROPERTY | VALUE |
|---|---|
Color | Crystalline Black |
Hardness (Knoop) | 3100-3280 kg/mm² |
Hardness (Mohs) | 9.0-9.5 |
Bulk Density (typical) | 1760 kg/m³ |
Particle Specific Gravity | 3.2 |
Chemical Composition
Crystalline SiC | SiO₂ | Fe₂O₃ | Free Silicon | Free Carbon | Other Oxides |
|---|---|---|---|---|---|
98.10% | 0.50% | 0.12% | 0.25% | 0.12% | 0.30% |
Pricing & Ordering Information
Minimum Order
10 lbs per grit size
All sizes available
Volume Discounts
Special pricing for 500+ lbs
Call for quote
Fast Delivery
Stock items
24-hour shipment
Silicon Carbide - Black | Net Price Per Pound
LBS | KG | 6-36 | 46-100 | 120-240 | 280 | 320 | 400 | 500 | 600 | 800 | 1000 | 1200 | F | FF | FFF |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1 lb | 0.45 | $10.00 | $10.00 | $10.00 | $10.00 | $10.00 | $10.00 | $10.00 | $15.00 | $17.00 | $20.00 | $22.00 | $10.00 | $11.00 | $12.00 |
5 lbs | 2.2 | $4.15 | $4.40 | $4.61 | $6.75 | $7.30 | $7.40 | $9.57 | $12.71 | $15.51 | $18.72 | $21.87 | $5.17 | $6.25 | $6.50 |
10 lbs | 4.5 | $4.05 | $4.30 | $4.51 | $6.65 | $7.20 | $7.30 | $9.47 | $12.61 | $15.41 | $18.62 | $21.77 | $4.97 | $6.05 | $6.28 |
25 lbs | 11.3 | $3.95 | $4.20 | $4.41 | $6.55 | $7.10 | $7.20 | $9.37 | $12.51 | $15.31 | $18.52 | $21.67 | $4.77 | $5.82 | $6.08 |
50 lbs | 22.7 | $3.85 | $4.10 | $4.31 | $6.45 | $7.00 | $7.10 | $9.27 | $12.41 | $15.21 | $18.42 | $21.57 | $4.57 | $5.62 | $5.88 |
100 lbs | 45.4 | $3.85 | $4.10 | $4.31 | $6.45 | $7.00 | $7.10 | $9.27 | $12.41 | $15.21 | $18.42 | $21.57 | $4.37 | $5.42 | $5.68 |
* Prices shown for reference only. Contact us for current pricing.
Availability & Delivery
All grit sizes from 6 through 1200 and powder grades (F, FF, FFF) are typically in stock and available for immediate shipment.
Stock items ship within 24 hours.