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7.Calcined α- Alumina
Please click on the following grades to view detailed specification.
Calcined α- Alumina
(COMMON HIGH TEMPERATURE SERIES)
PROPERTY:
This product presents in white powder or refined sand,it has good sintering activity. It can not be dissolved in water and be difficult dissolved in acid,alkali solution. The original particle size is smaller than 1 micron.
MAIN USEAGE:
It can be used in the polishing of different alumina products(mainly used in middle,fine polishing). It is also widely used in high-class aluminum refractory material,unshaped refractory materials,high aluminum ceramic product and advanced coating,etc.
SPECIFICAITON:
Category |
Index
Model |
Al2O3≥ (%) |
Impurities ≤(%) |
α-Al2O3≥(%) |
Specific gravity≥(g/cm3) |
D50 (micron) |
SiO2 |
Fe2O3 |
NaO2 |
Original powder |
AF |
99.0 |
0.10 |
0.03 |
0.30 |
91 |
3.90 |
40-60 |
AF0 |
99.0 |
0.10 |
0.03 |
0.30 |
93 |
3.93 |
40-60 |
AF1 |
99.0 |
0.10 |
0.03 |
0.30 |
94 |
3.95 |
40-60 |
Superine powder |
AF-P |
99.0 |
0.10 |
0.03 |
0.30 |
91 |
3.90 |
1.0-2.0 |
AF-3252 |
99.0 |
0.10 |
0.03 |
0.30 |
91 |
3.90 |
|
AF-A |
99.0 |
0.10 |
0.03 |
0.30 |
91 |
3.90 |
0.5-1.0 |
AF-B |
99.0 |
0.10 |
0.03 |
0.30 |
91 |
3.90 |
0.2-0.5 |
AF0-P |
99.0 |
0.10 |
0.03 |
0.30 |
93 |
3.93 |
|
AF0-A |
99.0 |
0.10 |
0.03 |
0.30 |
93 |
3.93 |
|
AF0-B |
99.0 |
0.10 |
0.03 |
0.30 |
93 |
3.93 |
|
AF1-P |
99.0 |
0.10 |
0.03 |
0.30 |
94 |
3.95 |
|
AF1-A |
99.0 |
0.10 |
0.03 |
0.30 |
94 |
3.95 |
1.0-3.0 |
AF1-B |
99.0 |
0.10 |
0.03 |
0.30 |
94 |
3.95 |
0.5-1.0 |
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