refractory white fused alumina 3-5mm
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white fused alumina 3-5mm
White fused alumina
White fused alumina was made from the high quality alumina by melting above 2000 in the electric arc furnace and cooling. It is white with the main crystal phase alpha-Al2O3.
1.Used for refractory,furnace burden,castable,ramming compoynd, painting etc
| Section sand | |||
| 12-6mm 10-8mm 8-5mm 6-3mm 5-3mm 3-1mm 1-0mm 1-0.5mm 0.5-0.2mm 0.5-0mm 0.3-0mm | |||
| Al2O3 | Fe2O3 | Na2O | SiO2 |
| 99.5min | 0.04max | 0.30max | 0.02max |
Main Physical Properties
| Mohs hardness | 9.0 |
| Bulk density | 1.75-1.95g/cm3 |
| Specific gravity | 3.95g/cm3 |
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