Brown fused alumina (brown corundum) is produced by a reduction fusion of high quality bauxite in electric arc furnaces. It is both a hard and tough material with high strength, making it an excellent abrasive grain for applications.Its thermal properties make it an excellent raw material for abrasive and refractory applications.
For Abrasvies: F8-F220, F230-F1200. P8-P220 or any other sizes by customer’s requirement.
For Refractories: 0-1mm, 1-3mm, 3-5mm, -200 mesh, 325 mesh or any other sizes by customer’s requirement.
Color | Brown |
Moh’s hardness | ≥9.0 |
Melting point | 2250ºC |
The maximum temperature | 1900ºC |
Specific gravity | 3.95 |
Bulk density | 1.53-1.99c/cm3 |
Bulk density | ≥3.90c/cm3 |
Chemical Composition (%) | Al2O3 | TiO2 | SiO2 | Fe2O3 | CaO |
F4-F80 | 95.0-96.0 | 1.50-3.80 | 1.21 | 0.3 | 0.45 |
F90-F150 | 93.5-95.5 | 1.50-3.80 | 1.21 | 0.3 | 0.45 |
F180-F220 | 93.5-95.5 | 1.50-3.80 | 1.21 | 0.3 | 0.45 |
F220 Finer | ≥92.0 | 1.50-3.80 | 1.21 | 0.3 | 0.45 |
1.Hard material suitable for cutting(Mosh hardness 9)
2.Dense material for durable work(Bulk density between 1.4-2.2g/cm3)
3.High strength for cutting and polishing durably
4.Heat resistant(more than 2200ºC) proof of high temperature material loss or chemical reaction which may cause change on work piece surface
5.Sharp edges ideal for removal of scratches, corrosion etc.
6.Reused for 8-20 times depending on different conditions
1. Abrasive blasting.Brown fused alumina as sandblasting abrasive hardness is moderate, high bulk density, no free silica, than the major, good toughness, is the ideal “green” type sandblasting material, widely used in aluminum, copper profiles glass, Washed jeans, precision molds and other fields;
2. Grinding.Brown Fused alumina is a grinding grade abrasive, used in the picture tube, optical glass, monocrystalline silicon,lenses, watches with glass, crystal glass, jade and other fields of free grinding, is widely used in the domestic high-level grinding materials;
3. Resin bond abrasive tools.Brown fused alumina with color suitable, good hardness, toughness, the appropriate particle type and edge retention, used in resin abrasive, the effect is ideal;
