Ecvv Trade
China Abrasives Import & Export Corporation

China Manufacturer with main products: silicon carbide, carborundum, brown fused alumina, brown corundum, alumina, foam filter, degassing rotor, heater protection tube, stalk tube,...

Home  >Products Catalog > Black aluminum oxide(black fused alumina) for grinding wheels and cut-offs

Black aluminum oxide(black fused alumina) for grinding wheels and cut-offs

Payment Terms: L/C, T/T(Bank Transfer)

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Place of Origin: Henan in China


Black fused alumina is a kind of artificial abrasives which has proper hardness, high toughness, good self-sharpening, high hydrophilicity, high heat conductivity and bonding ability. 
It can achieve better effects when combined with brown fused alumina (BFA) to produce grinding wheels and cut-offs than BFA, and the addition of BA can be 15% to 45%. More importantly, the use of BA can cut down the cost of your products. 
Available Size:
24#, 30#, 36#, 46#, 60#, 80#, 100#, 120#.
Can partly instead of BFA in making grinding wheels and Cut-offs;
Typical Chemical Analysis:
Al2O3: 72%; 
Fe2O3: 8%; 
SiO2: 14%; 
TiO2: 3%.
Total BA Content: > 95%.
Typical Physical Properties:
Color: Black;
Crystal Form: Trigonal System;
Moh's Hardness: ≥ 9.0;
Melting Point: 2050 °C;
Max. Working Temperature: 1850 °C;
Bulk Density: > 3.50 g/cm3;
Linear Expansion Coefficient (0-1600 °C): Approx. 7.

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