1.Description:
Brown Fused Alumina is fused and crystallized under the high temperature of above 2250°C with high quality bauxite, carbon and iron as raw material.
2.Characteristics:
Brown Fused Alumina is of compression strength, high toughness, good self-sharpening, lower expansion coefficient, no rusty spot, good hydrophily, high cleanliness, heat resistance and chemical stability,etc
3.Application:
Brown Fused Alumina is used in many applications including steel and foundry industries, castables, light-weight insulating refractories. It also be used in grinding wheels, sandpaper, blasting media, metal preparation, lapping, polishing,and grinding.
4.Specification:
Items |
Unit |
Tilting Furnace |
Fixed Furnace |
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Guarantee Value |
Typical Value |
Guarantee Value |
Typical Value |
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Chemical Composition |
Al2O3 |
% |
95 min |
95.5 |
95 min |
95.4 |
|
SiO2 |
% |
1.00 max |
0.9 |
1.5 max |
1.03 |
||
Fe2O3 |
% |
0.30 max |
0.20 |
0.30 max |
0.23 |
||
TiO2 |
% |
3.00 max |
2.80 |
3.00 max |
2.80 |
||
CaO MgO |
% |
1.0 max |
0.56 |
1.0 max |
0.54 |
||
Melting Point |
℃ |
2050 |
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Refractoriness |
℃ |
1980 |
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True Density |
g/cm3 |
3.85-3.90 min |
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Mohs hardness |
- |
9.00 min |
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Refractory Grade |
Grain Size |
mm |
8-5, 5-3, 3-1, 1-0 |
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Fine Powder |
mesh |
-80, 100, 150, 200, 325F |
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Abrasive Grade |
FEPA |
F14, 30, 150, 220 |