Description
Black Silicon Carbide #90 Grit is a fine-grade silicon carbide abrasive manufactured from high-purity petroleum coke and silica sand through high-temperature electric furnace smelting, followed by crushing and precision particle classification.
Featuring exceptional hardness, sharp angular particles, and excellent wear resistance, Black Silicon Carbide #90 Grit provides efficient cutting performance while producing a smooth and consistent surface finish. Its fine and uniform particle size enables greater process control, making it suitable for applications that require precision grinding and refined surface treatment.
Compared with #80 Black Silicon Carbide Grit, #90 Black Silicon Carbide Grit has a finer particle distribution, delivering improved surface smoothness and more consistent finishing results while maintaining excellent cutting efficiency. It is widely used in precision grinding, fine abrasive blasting, coated abrasives, bonded abrasive tools, ceramic processing, stone finishing, refractory materials, and other industrial applications.
With stable quality, high durability, and reliable abrasive performance, Black Silicon Carbide #90 Grit is an excellent choice for manufacturers seeking high-quality silicon carbide abrasives for precision finishing and industrial surface preparation.
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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