Description
Brown fused alumina, with high quality bauxite as main material, features micro-hardness and is tougher than silicon carbide. It is suitable for the normal grinding, cutting-off and loose grain polishing of metal materials with high tensile strength, such as carbon steel, alloy steel, malleable cast iron and hard bronze. It is also a very practical advanced refractory material.
Application:
1. Cotaed and bonded abrasive tools
2. Lapping and polishing processes
3. Sandblasting
4. Producing mold of precision casting
5. Refractory materials
6. Physical Characteristics:
Physical Index:
| Color | Brown |
| Basic Mineral | α-Al2O3 |
| True Density | 3.90g/cm3 |
| Bulk Density | 1.68-1.95g/cm3 |
| Mohs Hardness | 9.0 |
| Microhardness | HV1800-2200 |
Chemical Composition:
Typical Value:
| Al2O3 | 95.88% |
| TiO2 | 2.50% |
| SiO2 | 0.80% |
| Fe2O3 | 0.09% |
Abrasives Grade:
| Grit Size | Al2O3 | TiO2 | SiO2 | Fe2O3 |
| F12-F80 | >96.0% | 1.50-3.50% | 1.3% | 0.3% |
| F90-F150 | >95.2% | |||
| F180-F220 | >95.0% | |||
| F220 Finer | >93.0% |
Size Available:
Abrasives F16-F1200, P12-P1200
Refractory 0-1mm,1-3mm,3-5mm,200mesh,325mesh
Other special specifications could be supplied as required.
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