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.
Main Physical Properties
Mohs hardness |
9.0 |
Bulk density |
1.75-1.95g/cm3 |
Specific gravity |
3.95g/cm3 |
1.Used for refractory,furnace burden,castable,ramming compoynd, painting etc
|
Section sand |
fine powder/macropowder |
||
Size |
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 |
60mesh-0 80mesh-0 100mesh-0 120mesh-0 150mesh-0 200mesh-0 325mesh-0 |
||
Chemical compositions(%) |
Al2O3 |
99.5min |
Al2O3 |
99.0min |
Fe2O3 |
0.04max |
Fe2O3 |
0.20max |
|
|
Na2O |
0.30max |
Na2O |
0.40max |
SiO2 |
0.02max |
SiO2 |
0.05max |