Black Fused Alumina 1-3mm Grits | Mohs 9.0 Hardness | 1850°C Temperature Resistance
Black Fused Alumina (Black Corundum) is a high-performance abrasive material manufactured from premium bauxite ore through electric arc furnace fusion. This 1mm-3mm grit size material offers exceptional hardness and thermal resistance for demanding industrial applications.
Distinctive black color with matte finish, providing excellent visibility during application processes.
Mohs hardness ≥9.0, making it ideal for cutting, grinding, and polishing applications.
Melting point of 2050°C with maximum operating temperature of 1850°C.
True density ≥3.50 g/cm³ with trigonal crystal system structure.
| Property | Value |
|---|---|
| Color | Black |
| Crystal Form | Trigonal Crystal System |
| Hardness (Mohs) | ≥9.0 |
| Melting Point | 2050°C |
| Max Operating Temperature | 1850°C |
| True Density | ≥3.50 g/cm³ |
| Linear Expansion Coefficient | 7-9 (0-1600°C) |
| Grade | Al2O3 (%) | Fe2O3 (%) | SiO2 (%) | TiO2 (%) |
|---|---|---|---|---|
| Level 1 | 85 | 6-9 | 5-8 | 2-4 |
| Level 2 | <80 | >9 | >8 | >4 |
- Grinding & Polishing: Manufacturing of grinding wheels, abrasive belts, and discs for metal and ceramic finishing
- Surface Preparation: Sandblasting and shot blasting for rust, paint, and contaminant removal
- Precision Cutting: Cutting wheels and discs for stainless steel, carbon steel, and alloys
- Refractory Industry: Enhancing high-temperature resistance in furnace and kiln materials
- Abrasive Blasting: Industrial cleaning systems for surface preparation and contamination removal
- Lapping & Polishing: Optical lenses, semiconductor wafers, and precision component finishing
- Refractory Castables: Aggregate material improving performance in high-temperature environments
- Tumbling & Deburring: Removing burrs and sharp edges from metal and plastic components
- 1 ton/jumbo bag
- Jumbo bag + wooden pallets
- 25 kgs/bag, 40 bags/jumbo bag
All packaging can be customized according to customer requirements including woven bags or kraft paper bags.
Zhengzhou Xinli Wear-resistant Materials Co. Ltd. - Founded in 1996, we are a professional manufacturer specializing in abrasives production, R&D, and sales of various wear-resistant materials. Our annual production capacity reaches 3,000 tons with certifications including ISO9001:2008 quality management system.
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