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White Fused Alumina
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Added:2020-07-11
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Telephone:18651259777
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White Fused Alumina

White fused alumina is made from excellent industrial alumina by smelting at 2050℃ in arc furnaces at high temperature of 2050℃.It is featured by high purity,good self-sharpening,low grinding heat output,acid-alkali and corrosion resistance,good stability at high temperature,and low porosity,etc.As the main raw material for producing middle/top-class unshaped products,white fused alumina is widely used in ladle castable, iron runner,gun-mix refractory,etc.As for shaped refractories,it’s chiefly used in producing corundum bricks,corundum-mullite saggers,refining-used corundum porous plug bricks,integral blowing lance,three-piece for steel making con-casting production,ultra-high temperatureindustrial furnace lining,and other corundum products. It’s also the high-quality raw material in abrasives,mainly used for producing grinding wheel,grinding and polishing tools,as well as the most promising material with bound less prospects used in military,ship building,glass making,aerospace,optical-instrument-manufacturing,nuclear power plants construction and other industries.


Chemical composition (%) ItemSandFinesMirco powder
Al2O3≥99.2≥99≥98.5
SiO2≤0.1≤0.15≤0.15
Fe2O3≤0.08≤0.1≤0.1
Na2O≤0.35≤0.4≤0.6
Apparent porosity (%)≤8.0≤8.0≤8.0
Moh's hardness999
HardnessHV2000-2200HV2000-2200HV2000-2200
True density(g/cm3)≥3.92≥3.92≥3.92
Refractoriness(℃)≥1850≥1850≥1850