White fused alumina for Refractories
White fused alumina for Refractories:
White fused alumina electrically fused in arc furnace with high grade processed alumina as raw material. It is characterized by high hardness, high purity, acid and alkali resistance, good thermal stability. It’s the high grade refractory material.
White fused alumina:
|
Purpose |
Specification |
Chemical composition(%) |
Magnetic material content(%) |
||||
|
Al2O3 |
Na2O |
SiO2 |
CaO |
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|
For refractory |
Size sand |
0-1mm 1-3mm 3-5mm 5-8mm 8-12mm |
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|
Fine powder |
180#-0 220#-0 325#-0 |
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|
Item |
Specification |
|
Colour |
white |
|
Crystal System |
trigonal system |
|
Mohs Hardness |
≥9 |
|
Melting Temperature（℃） |
2150 |
|
Refractory Temperature（℃） |
1950 |
|
True Density |
≥3. 50 |
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