White Aluminum Oxide(WFA), also known as white Fused Alumina, is a chemical compound of aluminum and oxygen. The most common form of crystalline aluminum oxide is known as corundum. It is electrically fused in an arc furnace at 2050℃ with high purity Alumina. The final product is used in applications where higher purity levels and lower iron content is desired.
Get A QuoteWhite corundum abrasive is suitable for surface beautification of various high-end products, crafts or hardware products. After sandblasting, the surface will be white without any impurities, eliminating the trouble of cleaning.
Standard Packaging:
- Big bags (1000kgs, 1250kgs, 1350kgs.) with or without pallets;
- 20 or 25kg plastic, or paper bags, with or without pallets.
*Custom Packaging is available upon request.
F8-F220,F240-F1200 or any other sizes by customer's requirement.
| Main Chemical Composition | ||||
| White fused aluminum grit sand | white fused alumina micro powder | White fused aluminum section sand | White fused aluminum fine powder | |
| AL2O3 | 99.53% | 99.27% | 99.59% | 99.28% |
| SiO2 | 0.13% | 0.14% | 0.01% | 0.14% |
| NA2O | 0.23% | 0.28% | 0.24% | 0.27% |
| Fe2O3 | 0.07% | 0.06% | 0.02% | 0.05% |
| CaO | 0.03% | 0.05% | 0.02% | 0.04% |
| Colour | White |
| Mohs hardness | 9 |
| Nup hardness | 2000-2200Kg/mm2 |
| Operating temperature | 1900℃ |
| Melting point | 2250℃ |
| Proportion | 3.95g/cm3 |
| Bulk density | 3.6g/cm3 |
| Packing density | 1.55-1.95g/cm3 |
| Specific heat | 0.26cal/g.℃ (20-90℃) |
| Thermal conductivity coefficient | 6.16W/（m·K）（1000℃） |
| Linear expansion coefficient | 8.0×10-6/℃（200-1000℃） |
| Refractive index | e=1.760w=1.768 |
| Crystal form | Tripartite crystal system |
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