white fused alumina F20/20# WA white aluminum oxide abrasives material
White fused alumina is made in arc furnace with high grade processed alumina as raw materials. It has higher hardness , high toughness, and also characterized by its high purity. As the abrasive materials, it is suitable for grinding high-speed, high carbon steel. also widely used for bonded and coated abrasives, polishing, precision casting and so on.
*physical property:
Mohs Hardness | Bulk Density | Specific Gravity | Volume Density | Melting Point | Maximum service temperature |
9.0 | 1.75-1.95g/cm3 | 3.95g/cm3 | 3.6g/cm3 | 2250°C | 1900°C |
*chemical composition:
Al2O3 | Fe2O3 | Na2O | SiO2 | CaO | K2O |
≥99.5% | ≤0.08% | ≤0.30% | ≤0.10% | ≤0.03% | ≤0.03% |
* Usage:
1. The process of blasting TV screens
2. The cutting of silicon wafer
3. The process of cleaning and blasting tooth model
4. Precision sand casting
5. High refractory and other ceramic additives
6. to make sandpaper & sandcloth
* Showroom
