WFA white aluminum oxide
White fused aluminum Oxide, called White Corundum, white fused alumina ,
white electrofused-alumina, white fused Al2O3, white electrocorundum,White Aloxide too.
Mainly chemistry composition:
Al2O3 >99.5%
Size: Grit# 36,40,55,75,90,110,150,220,320,400 0.05-10mm,20/40mesh,30/60mesh,80mesh
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white fused aluminum/white corundum/WA
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Range of grit sizes
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content
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Al2O3
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Na2O
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Fe2O3
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SiO2
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F8-F100
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99.59min
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0.20max
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0.03max
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0.04max
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F120-F240
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99.53min
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0.22max
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0.03max
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0.04max
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F320-F1200
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99.50min
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0.24max
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0.04max
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0.05max
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Physical properties of white fused alumina
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Items
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Property
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Color
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White
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Bulk density
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1.75-1.95g/cm3
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Grain density
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3.90g/cm3 min
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Morse hardness
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9
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Micro hardness
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21600-22600kg/mm3
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Density: 3.90 g/cm3
Hardness: Mr Spectral hardness is 2000-2200 Kg/was, 9.0 mohs hardness
Color: dark brown, deep blue in colour after calcination
Melting point: 2250 C
The highest use temperature: 1900 C
Specific heat (Cal/g. C) 0.26 (20-90 - C)
Heat transfer coefficient at room temperature to 900 C (Cal/cm3. SEC. C)
Refractive index: e = 1.760 w = 1.768 (Na line)
Resistivity: 30 C 300 C 900 C 1600 C (cm)
Coefficient of expansion: 7-9 (0-1600 - C)
Application:
Abrasive Blasting material
High-quality refractory materials
Raw material for refractory brick
high end refractory products for the steel, foundry , and glass industry
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