Comparing with brown fused alumina. It is also characterized by its high purity, acid and alkali resistance, good thermal stability. It’s the high grade refractory materials.
Purpose
|
Specification
|
Chemical composition(%)
|
Magnetic material content(%)
|
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Al2O3
|
Na2O
|
SiO2
|
CaO
|
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For refractory
|
Size sand
|
0-1mm
1-3mm
3-5mm
5-8mm
8-12mm
|
99.0Min | 0.5 Max |
—
|
0.4 Max
|
0.003 Max
|
Fine powder
|
180#-0
240#-0
320#-0
|
98.5Min |
0.3 Max
|
0.5 Max
|
0.001 Max
|
Mohs Hadness | ≥10 |
Melting Temperature(℃) | 2250 |
Refractory Temperature(℃) | 1900 |
True Density | ≥3. 50 |