Description
Black Silicon Carbide #220 Grit is a fine silicon carbide abrasive material produced from high-purity petroleum coke and silica sand through electric resistance furnace smelting, crushing, and precision classification processes.
With excellent hardness, high thermal stability, and sharp angular grains, Black Silicon Carbide #220 Grit provides accurate cutting performance and consistent abrasive action. Its refined grain size enables smoother processing, improved surface uniformity, and better control during precision grinding and finishing operations.
Compared with #180 Black Silicon Carbide Grit, #220 Black Silicon Carbide Grit features a finer particle structure and improved surface treatment capability, making it suitable for applications requiring lower surface roughness and higher finishing accuracy. It is widely used in precision grinding, fine polishing preparation, coated abrasives, bonded abrasive tools, ceramics, stone processing, refractory materials, and other industrial applications.
Due to its stable grain distribution, excellent wear resistance, and reliable abrasive performance, Black Silicon Carbide #220 Grit is an ideal solution for manufacturers seeking high-quality fine abrasives for precision finishing processes.
Key Features
High Hardness
Mohs hardness up to 9.2, providing excellent cutting ability, wear resistance and grinding efficiency.
High Abrasive Performance
Sharp crystal structure enables fast material removal and excellent grinding performance.
Good Thermal Stability
Maintains stable abrasive performance under high temperature working conditions.
Wide Application Range
Suitable for blasting, grinding, refractory and industrial surface treatment applications.
Available Sizes
- JIS Grit:#14, #16, #22, #24, #30, #36, #40, #46, #60, #70, #80, #90, #100, #120, #150, #180, #220, #240
- FEPA F Grit:F12, F14, F16, F20, F22, F24, F30, F36, F40, F46, F54, F60, F70, F80, F90, F100, F120, F150, F180, F220
- Customized Sizes:Customized particle sizes are available according to customer requirements for precision grinding, polishing and advanced industrial applications.
Applications
Abrasive Blasting
Used for surface cleaning, rust removal and preparation of metal, stone and other materials.
Grinding Wheels
Suitable for bonded abrasives, grinding tools and general abrasive applications.
Refractory Materials
Applied in refractory products due to excellent thermal stability and wear resistance.
Ceramics & Advanced Materials
Used for grinding ceramics, cemented carbide and engineering materials.
Technical Data
Physical Properties
| Item | Value |
|---|---|
| Appearance | Black Granular |
| Mohs Hardness | 9.2 |
| Bulk Density | 1.45–1.56 g/cm³ |
| True Density | 3.12 g/cm³ |
| Melting Point | 2250°C |
| Crystal Structure | Hexagonal |
| CAS No. | 409-21-2 |
| HS Code | 2849200000 |
Chemical Composition (%)
| Model | Particle Size | SiC | F.C. | Fe₂O₃ |
|---|---|---|---|---|
| C | F4–F90 | ≥98.80 | ≤0.15 | ≤0.15 |
| F100–F150 | ≥98.50 | ≤0.20 | ≤0.20 | |
| F180–F220 | ≥98.30 | ≤0.25 | ≤0.25 |
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