Brown Fused Alumina
Chemical and Physical Features
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Items
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Al2O3
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Fe2O3
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SiO2
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Bulk density
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Color
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Application
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Grade I
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≥95
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≤0.3
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≤1.5
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3.85
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Maroon
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Refractory material,
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Grade II
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≥95
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≤0.3
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≤1.5
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3.85
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Black particle
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fine polishing
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Grade III
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≥95
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≤0.3
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≤1.5
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3.85
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Gray powder
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Polishing, grinding
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Grade IV
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≥95
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≤0.3
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≤1.5
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3.85
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Black particle
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Grinding, cutting, sandblasting
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Grade V
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≥95
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≤0.3
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≤1.5
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3.85
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Gray powder
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Polishing, grinding
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