Brown Fused Alumina (BFA) is made from Calcined Bauxite. It is a hard and tough material, used in manufacturing of grinding wheels (both vitrified and resin bonded) and coated products. These grains are also used for shot blasting and as polishing media.
Brown Fused Aluminum Oxide Powders are the perfect material specifically manufactured to be used for general abrasive applications in bonded abrasive tools and lapping and polishing processes. While aluminum oxide has lower hardness and abrasive capacity than diamond, boron carbide, and silicon carbide, it is widely used for grinding ferrous materials, finishing tough and hard materials, filling up ceramic parts when the processing cost is important.
| Brown fused alumina Micropowder | |
| Chemical Composition | Percentage |
| Al2O3 | ≥94.0% |
| Fe2O3 | ≤0.5% |
| Na2O | ≤0.30% |
| SiO2 | ≤1.50% |
| TiO2 | 1.5-3.8% |
| CaO | ≤0.30% |
| Physical Index | |
| Bulk density | 1.53-1.99g/cm3 |
| Grain density | 3.90 g/cm3 |
| Morse hardness | 9 |
Applications
- Lapping & polishing for carbon steel, alloy steel, cast iron, general hardware
- Raw material for lapping compound, polishing paste, grinding slurry
- Deburring, oxide‑layer removal, semi‑fine grinding