Brown aluminium oxide/brown fused alumina(A)
Al2O3 95%............Fe2O3 0.3%....SiO2 1.5%......TiO2 3.0.%........ Magnetic material content 0.05%.....color brown ……hardness(mohs) 9…….ture density 3.9
Marterials: Bouxite
Brown aluminium oxide is fused and crystallized under high temperature from a mixture of bauxite and other and other raw materials. It is characterized by its high hardness,good toughness and shape in size.
Characteristics:
1 high hardness,good toughness and sharp shapein
2 good grinding, high temperature resistance
3 Corrosion- resistance, high strength, high hardness and wear- resistance
Chemical coposition
|
Purpose
|
Specification
|
Chemical Composition(%)
|
Magnetic material content(%)max
|
||||
|
Abrasives grade
|
Al2O3min
|
Fe2O3max
|
SiO2max
|
TiO2max
|
|||
|
grain
|
12-80
|
95
|
0.3
|
1.5
|
3.0
|
0.05
|
|
|
90-150
|
94
|
0.3
|
1.5
|
3.0
|
0.03
|
||
|
180-220
|
93
|
0.3
|
1.5
|
3.5
|
0.02
|
||
|
micropowder
|
240-4000
|
92.5
|
0.5
|
1.8
|
4.0
|
—
|
|
|
Refractory grade
|
Group Size
|
0-1mm
1-3mm
3-5mm
5-8mm
|
94.5
|
0.3
|
1.5
|
3.0
|
—
|
|
Fine Powder
|
-180mesh
-200mesh
-240mesh
-320mesh
|
93.5
|
0.5
|
1.5
|
3.5
|
—
|
|
|
color
|
Dark brown
|
||||||
|
Hardness(mohs)
|
9.0
|
||||||
|
Melting point(°C)
|
2250
|
||||||
|
Maximum service temperature(°C)
|
1900
|
||||||
|
Ture density(g/cm3)
|
3.9
|
||||||
Application
Abrasives tools made of it are suitable for grinding metals of high-tensile strength such as: carbon steel,general-purpose alloy steel,annealed malleable iron and hard broze,etc.It also can be used as refractory materials.
We have good-built several product lines for different kinds of abrasives and abrasive products. And we also have a very strict quality controlling system which promises that goods we produced are always of the best quality. So we can produce brown fused alumina according to customer's requirement.