white aluminum oxide PV:1930
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Category:Aluminum Oxide
SPEC:16#20#24#30#36#46#54#60#70#80#90#100#120#150#180#2
Packaging:Bag Package/Small Bag Package
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
fine powder/macropowder:60mesh-0 80mesh-0 100mesh-0 120mesh-0 150mesh-0 200mesh-0 325mesh-0
Section sand Chemical compositions(%)
Al2O3 99.5min
Fe2O3 0.04max
Na2O 0.30max SiO2 0.02max
fine powder/macropowder chemical compositions(%)
Al2O3 99.0min
Fe2O3 0.20max
Na2O 0.40max
SiO2 0.05max
Main Physical Properties
Mohs hardness 9.0
Bulk density 1.75-1.95g/cm3
Specific gravity 3.95g/cm3
Maximum service temperature:1900℃
Melting point:2250℃