Brown fused alumina refractory
Brown fused alumina possess high purity, good crystal, strong fluidity, low coefficient of linear expansion, good corrosion resistance and so on. Through decades of practical application in the refractory industry, Brown fused alumina can’t burst, pulverise and craze in the using course. In particular, its performance-cost ratio is much higher than other refractory materials, making brown fused alumina become the best aggregate and padding of brown fused alumina refractory materials.
Typical physical properties for brown fused alumina:
| Item | Content |
| Hardness | 9 Mohs |
| Grain shape | angular |
| Melting point | 1950℃ |
| Specific gravity | 3,9-4,1g/cm3 |
Typical chemical contents for brown fused alumina:
| Item | Process of Tilt Furnace | Process of Fixed Furnace | ||
| Assurance Value | Typical Value | Assurance Value | Typical Value | |
| Al2O3 | 95% min | 95.65% | 95% min | 95.43% |
| TiO2 | 3% max | 2.42% | 3.0% max | 2.49% |
| Fe2O3 | 0.3% max | 0.12% | 0.3% max | 0.11% |
| SiO2 | 1.0% max | 0.92% | 1.5% max | 1.28% |
Available Granulations
| Specification | Average size |
| Grit | 0-0.5 mm |
| 0.5-1 mm | |
| 1-3 mm | |
| 3-5 mm | |
| 5-8 mm | |
| 8-15 mm | |
| 10-20 mm | |
| 20-40 mm | |
| 20-50 mm | |
| 30-50 mm | |
| Fine Power | 180Mesh-0 |
| 240Mesh-0 | |
| 320Mesh-0 |
Brown fused alumina refractory picture:
brown fused alumina refractory smelting:
Package for brown fused alumina:
