Brown Fused Alumina
Brown fused Alumina(also know as brown corundum or brown aluminium oxide) is produced by fusion of calcined bauxite in Electric arc furnaces at high temperature of about 2000 degree celsius. The end product has low iron content making it particularly valuable in refractory applications. BFA has a high refactoriness, is extremely hard and stable.
Typical chemical analysis in wt. %(1-3):
| Index | Al2O3 | SiO2 | Fe2O3 | TiO2 |
| Typical value | 95.38 | 0.98 | 0.14 | 2.55 |
Fused Alumina standard grades
- 5-8mm (-8+5mm)
- 3-5mm (-5+3mm)
- 1-3mm (-3+1mm)
- 0-1mm (-1mm)
- 0-250μm (-60#)
- 0-150μm (-100#)
- 0-15μm (-200#)
Other grades are available on request.
Fused alumina packaging:
Our Fused Alumina product range is available in 25kg paper sacks, 1000kg bulk bags or as bulk as standard.
Main applications are:
- shaped and unshaped refractory products
- abrasive products
- blasting medias
- brake and friction linings.
Product Advantage:
It is of compression strength, high toughness, good self-sharping, lower expansion coefficient, no rusty spot, good hydrophily, high cleanliness, heat resistance and chemical stability.
Technical Parametar:
| Chemical Composition(%) | Physical Property | ||
| Al3O3 | 92.5-97 | Gravity | 3.50-3.90g/cm3 |
| Fe2O3 | 0.3-1.0 | Density | 1.30-1.90g/cm3 |
| SiO2 | 1.0-2.0 | Hardness (Mohs) | 9.0-9.3 |
| TiO2 | 1.5-4.0 | ||
| Size | 5-8mm (-8+5mm) 3-5mm (-5+3mm) 1-3mm (-3+1mm) 0-1mm (-1mm) |
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| FEPA standard | F8, F10, F12, F14, F16, F20, F22, F24, F30, F36, F40, F46, F54, F60, F70, F80, F90, F100, F120, F150, F180, F220, F230, F240, F280, F320, F360, F400, F500, F600, F800 | ||
| JIS standard | #8, #10, #12, #14, #16, #20, #24, #30, #36, #46, #54, #60, #70, #80, #90, #100, #120, #150, #180, #220, #240, #280, #320, #360, #400, #500, #600, #700, #800, #1000, #1200, #1500, #2000 | ||