Product: Black fused alumina
Raw material: Bauxite
Color: Black
Usage: Abrasive tool/ media
Common size: 16 24 36 46 60 80 120 mesh etc.
Packing: 25kg/bag
High quality Black fused alumina products for sale
Description
Black fused alumina also known as black corundum, gray-black crystal with α-Al2O3 and iron spinel as the main ore phase produced by melting aluminum bauxite in an electric arc furnace, its Al2O3 content is about 70-85%
Features of Black fused alumina
- Moderate hardness
- High toughness
- Temperature resistance
- Stable thermal performance
Application of Black fused alumina
- Free grinding, such as floor polishing before electroplating metal parts and aluminium products.
- Bicycle, motorcycle, sewing machine, clock parts.
- Plastic and hardware tools, such as polishing, is also suitable for sandblasting (spray derusting, glass flower).
- Processing and manufacturing resin cutting, angle grinding pills and coated abrasive, etc.
- Black corundum sand and micro powder, especially suitable for the grinding and polishing of stainless steel work pieces and the manufacture of grindstone and abrasive paste.
Specification of Black fused alumina
| Item | Indicators |
| Color | Black |
| Crystal | Trigonal system |
| Hardness (Mohs) | ≥ 9.0 |
| Melting point (°C) | 2050 |
| The maximum temperature (°C) | 1850 |
| True Density (g/cm3) | ≥ 3. 50 |
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