brown fused aluminum oxide/brown fused alumina/brown corundum/brown alundum
1.Al2O3 purity 96%
2.reasonable price
3. high q
Brown fused Alumina known as “artificial corundum” or “alumina grit”. Brown fused alumina is produced from bauxite, charcoal, iron chip by being fused under high temperature in an electric arc furnace. It is characterized by high toughness and has a micro hardness of 2000-2200kg/mm2. The abrasive tools made by brown fused alumina are suitable for grinding carbon steel, normal alloy steel, malleable cast iron and hard bronze, etc. Brown fused alumina can also be used for making fine quality refractory etc.
Grit Size
AL2O3
MIN
SIO2
MAX
TIO2
MAX
Fe2O3
MAX
0-50mm
94.50%
0.80%
2.23%
0.35%
0-1mm
95.50%
0.70%
2.23%
0.25%
1-3mm
95.75%
0.66%
2.18%
0.23%
3-5mm
95.90%
0.60%
2.15%
0.21%
5-8mm
96.00%
0.50%
2.10%
0.18%
Physical Performance Index
Item
Index
Color
Brown
Crystal shape
Trigonal
Hardness(mohs)
≥9.0
Melting Point (°C)
2250
True density (g/cm3)
≥3. 90
Linear Expansion Coefficient(0—1600°C)
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