This kind of white fused alumina electrically fused in arc furnace with high grade processed alumina as raw material. It has higher hardness and slight lower toughness comparing with brown fused alumina. It is also characterized by its high purity, acid and alkali resistance, good thermal stability. It’s the high grade refractory materials
White fused alumina:
White fused alumina:
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Purpose
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Specification
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Chemical composition(%)
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Magnetic material content(%)
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Al2O3
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Na2O
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SiO2
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CaO
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For refractory
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Size sand
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0-1mm
1-3mm
3-5mm
5-8mm
8-12mm
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99.0Min
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0.5 Max
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—
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0.4 Max
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0.003 Max
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Fine powder
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180#-0
240#-0
320#-0
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98.5Min
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0.3 Max
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0.5 Max
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0.001 Max
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