Brown Fused Alumina
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Brown Fused Alumina
Brown fused alumina is produced through the high temperature smelting of bauxite coke in an electric arc furnace. Following the sorting of raw materials, electrolytic smelting, crushing, ferromagnetic separation, screening, physical and chemical inspection, as well as finished product packaging and warehousing processes are carried out. Brown fused alumina grinding is derived from a combination of bauxite and coke. This brown corundum is produced by refining high-quality bauxite in an electric arc furnace at temperatures exceeding 2000°C. With its exceptional purity, well-formed crystals, excellent fluidity, low linear expansion coefficient, and resistance to corrosion, brown corundum serves as the ideal aggregate and filler for brown corundum refractories.
| Model | Size (μm) | Size (Mesh) |
|---|---|---|
| BFA 24# | 850 - 710 | 20# - 25# |
| BFA 36# | 600 - 500 | 30 - 35# |
| BFA 46# | 425 - 355 | 40# - 45# |
| BFA 60# | 300 - 250 | 46# - 60# |
| BFA 80# | 212 - 180 | 70# - 80# |
| BFA 100# | 150 - 125 | 90# - 110# |
| BFA 120# | 125 - 106 | 120# - 140# |
Chemical Composition
| Al2O3 | 95,65 % |
| TiO2 | 2,42 % |
| Fe2O3 | 0,12 % |
| SiO2 | 0,92 % |
| CaO | 0,35 % |
| MgO | 0,22 % |
Typical physical properties
| Hardness | 9 mohs |
| Grain shape | angular, sharp edged |
| Melting point | approx. 1950°C |
| Specific gravity | approx. 3,9 – 4,1 g/cm3 |
| Bulk density | approx. 1,5 – 2,1 g/cm3 |
Fused Alumina applications
- Remove paint
- Clean surface
- Polish metal
- Sculpture
- Carve
- Increase roughness
- Clean ship body
- Clean ship hull
- Treat surface of ship
