Brown Fused Alumina

Category:Brown Fused Alumina
Region: China

Packaging:Bag Package/Small Bag Package

Category: Tag:


Brown fused alumina, with high quality bauxite as main material, features micro-hardness and is tougher than silicon carbide. It is suitable for the normal grinding, cutting-off and loose grain polishing of metal materials with high tensile strength, such as carbon steel, alloy steel, malleable cast iron and hard bronze. It is also a very practical advanced refractory material.



1. Cotaed and bonded abrasive tools

2.  Lapping and polishing processes

3.  Sandblasting

4.  Producing mold of precision casting

5.  Refractory materials

6.  Physical Characteristics:


Physical Index:

Color Brown
Basic Mineral α-Al2O3
True Density 3.90g/cm3
Bulk Density 1.68-1.95g/cm3
Mohs Hardness 9.0
Microhardness HV1800-2200


Chemical Composition:

Typical Value:

Al2O3 95.88%
TiO2 2.50%
SiO2 0.80%
Fe2O3 0.09%


Abrasives Grade:

Grit Size Al2O3 TiO2 SiO2 Fe2O3
F12-F80 >96.0% 1.50-3.50% 1.3% 0.3%
F90-F150 >95.2%
F180-F220 >95.0%
F220 Finer >93.0%


Size Available:

Abrasives F16-F1200, P12-P1200

Refractory 0-1mm,1-3mm,3-5mm,200mesh,325mesh

Other special specifications could be supplied as required.


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