Brown fused alumina is fused and crystallized under high temperature from a mixture of calcined bauxite,coke(anthracite),scrap iron and other raw materials.
Brown fused aluminum oxide is a tough, hard material (Mohs hardness 9) with high strength, excellent wear and corrosion resistance and good thermal conductivity.
Brown Fused Alumina, for premium quality refractory products making, high Al2O3, low impurity, high toughness, widely used for making refractory bricks, cement castables and mortars.
Brown aluminum oxide is made by high quality bauxite as main material, fusing and purifying in a pouring electric arc furnace at a temperature of over 2200DEG C, and made into different grain sizes through crystal, choosing, crashing, magnetic, separating, screening, washing etc. It is characterized by its high hardness, good toughness and sharp shape in particles.
Purpose |
Specification |
Chemical composition(%) |
Magnetic material ≤ |
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Al2O3(≥) |
Fe2O3(≤) |
SiO2≤ |
TiO2≤ |
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For abrasive |
F grit |
4#-80# |
95.0 |
0.3 |
1.5 |
3.0 |
0.05 |
|
90#-150# |
94.0 |
0.03 |
||||
|
180#-240# |
93.0 |
3.5 |
0.02 |
|||
P grit |
8#-80# |
95.0 |
0.2 |
1.2 |
3.0 |
0.05 |
|
|
100#-150# |
94.0 |
0.03 |
||||
|
180#-220# |
93.0 |
0.3 |
1.5 |
3.5 |
0.02 |
|
Micro Powder |
W0.5-W63 |
92.5 |
0.5 |
1.8 |
4.0 |
|