White Aluminum Oxide


Category:Aluminum Oxide
Region: China

Packaging:Bag Package/Small Bag Package

PubDate:2020-06-13 11:13:02

Deadline:2020-06-23 11:13:02

Category: Tag:


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℃


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