Brown Fused Alumina Oxide
Detailed Product Description
|
Al2O3 Content:
|
above 94%
|
Product Name:
|
Brown Fused Alumina (Corundum)
|
|
Application:
|
Abrasives&Refractories
|
Feature:
|
High Purity
|
|
Grain Size: |
F8#~F220# |
Refractoriness: |
1900 ℃ |
|
Fine Powder: |
0~330mm |
Max service temperature: |
1850 ℃ |
Brown fused alumina is based on high-quality bauxite raw material, mixing with moderate anthracite and iron filings, by melting at 2,000℃in electrical arc, and then crushing, selecting and shaping to be various sizes. It has been the best aggregate and fillers of brown corundum refractory materials. Corundum size is usually made as per international or national standards, customized is available. The general grain size is F4~F320, depending on chemical compositions.
Features: high purity, high erosion resistance, well crystallization but cost-effective; strong liquidity and low coefficient of linear expansion; no explosion, no powdering, no splitting during usage
Application:
a. to make abrasive tools with better grinding performance, lower heat liberation rate, higher grinding ratio;
b. to make sintered abrasives with dark blue、no map cracking and no rust spot;
c. to make the high-quality ceramic and resinous bonded abrasive products, grinding and polishing, etc.
Specification:
Brown Fused Alumina for Abrasive\Sandblasting\Precision casting
|
Purpose
|
Specification
|
Chemical composition%
|
Magnetic material content%
|
|
Al2O3
|
Fe2O3
|
SiO2
|
TiO2
|
|
BFA For Abrasive
|
F
|
4#—80#
|
≥95.0
|
≤0.25
|
≤1.0
|
≤3.0
|
≤0.05
|
|
90#—150#
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≥95.0
|
≤0.03
|
|
180#—240#
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≥94.5
|
≤0.3
|
≤1.5
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≤3.5
|
≤0.02
|
|
P
|
8#—80#
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≥95.0
|
≤0.25
|
≤1.0
|
≤3.0
|
≤0.05
|
|
100#—150#
|
≥95.0
|
≤0.03
|
|
180#—220#
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≥94.5
|
≤0.3
|
≤1.5
|
≤3.5
|
≤0.02
|
|
W
|
1#-63#
|
≥94.0
|
≤0.5
|
≤1.8
|
≤4.0
|
—
|
Brown Fused Alumina /Brown Aluminum Oxide for refractory
|
Purpose
|
Specification
|
Chemical composition(%)
|
Magnetic material content(%)
|
|
Al2O3
|
Fe2O3
|
SiO2
|
TiO2
|
|
For refractory
|
Size sand
|
0-1mm
1-3mm
3-5mm
5-8mm
8-12mm
|
≥95.0
|
≤0.25
|
≤1.0
|
≤3.0
|
—
|
|
0-3mm
0-5mm
0-10mm
0-25mm
|
≥95.0
|
≤0.25
|
≤1.0
|
≤3.0
|
—
|
|
Fine powder
|
180#-0
240#-0
320#-0
|
≥94.5
|
≤0.30
|
≤1.5
|
≤3.5
|
—
|
|
Brown Fused Alumina /Brown Aluminum Oxide Physical Properties
|
|
Color
|
True Density
|
Mohs Hardness
|
Melting Temperature
|
Crystal System
|
Refractory Temperature
|
|
Brown
|
3.90g/cm3
|
9.0
|
2050°C
|
trigonal system
|
1900°C
|
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