White Fused Alumina
White Fused Alumina
White fused alumina (WFA) is made of industrial alumina powder which is melted in the electric arc at over 2000 degrees, then cooled, crushed and formed, magnetically selected to remove iron, and sieved into various particle sizes.
White fused alumina has high purity, good self-sharpening, acid and alkali corrosion resistance, high temperature resistance and high hardness performance. It can be used to produce ceramics, refractory materials, etc.
| Item | Abrasives Grade | Refractory Grade | ||||
| Grain | Micro Powder | Group Size | Fine Powder | |||
| Al2O3 (%), ≥ | 99 | 99 | 99 | 98.5 | 99 | 99 |
| Fe2O3 (%), ≤ | 0.05 | 0.06 | 0.08 | 0.1 | 0.1 | 0.1 |
| SiO2 (%), ≤ | 0.26 | 0.28 | 0.30 | 0.40 | 0.35 | 0.35 |
| TiO2 (%), ≤ | 0.08 | 0.09 | 0.10 | 0.15 | 0.3 | 0.3 |
| Size | 12-80 | 90-150 | 180-220 | 240-4000 | 0-1mm 1-3mm 3-5mm 5-8mm | -180mesh -200mesh -240mesh -320mesh |
