Description
Black Silicon Carbide #30 Grit is a coarse-grade silicon carbide abrasive material manufactured from high-purity petroleum coke and silica sand through high-temperature electric furnace smelting, crushing, and precise sizing processes.
With excellent hardness, sharp cutting edges, and outstanding abrasive performance, Black Silicon Carbide #30 Grit delivers fast cutting action and efficient material removal while providing a more uniform surface finish than coarser grades. Its particle size makes it ideal for abrasive blasting, surface preparation, grinding, and industrial applications requiring both high cutting efficiency and improved finish quality.
Compared with #24 Black Silicon Carbide Grit, #30 Black Silicon Carbide Grit features a finer particle distribution, offering better surface consistency and greater process control while maintaining excellent stock removal capability. It is widely used for rust removal, metal surface cleaning, stone processing, refractory manufacturing, rough grinding, and general-purpose abrasive blasting applications.
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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