| AE-20 is a kind of regular Brown Aluminum Oxide abrasive grains, the shape of the grain is angular and edge sharp, combined with blocky grain shape and sharp grain shape. With the medium loose bulk density. To get the kind of grains, we specially process the ingots, separate the magnetic material, and sieve the grains carefully to get a complete range of grit sizes.
As an abrasive, AE-20 is mainly used in making organic bonded grinding wheels, resign bonded grinding wheels and polishing stones. As loose grains, it is widely used for pressure blasting, surface finish and other general industrial applications.
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Typical Chemical Analysis |
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| Al2O3 |
Fe2O3 |
TiO2 |
SiO2 |
CaO |
| 95.70% |
0.12% |
2.66% |
0.98% |
0.22% |
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| Color |
Dark brown |
| Shape |
Blocky, tough and sharp |
| Crystal Form |
Alpha-alumina trigonal system |
| True Specific Gravity |
3.96 g/cm3 |
| Hardness |
2090 Knoop scale; 9.0 Mohs scale |
| Melting Temperature |
About 2050 ℃
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| Magnetic Material |
0.0076% |
| Toughness |
50.46 |
| Hydrophilic |
34.00 |
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Bulk Density Test Value (g/cm3) |
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| Grit No |
F12 |
F14 |
F16 |
F20 |
F22 |
F24 |
F30 |
F36 |
F40 |
F46 |
| B.D |
1.94 |
1.91 |
1.90 |
1.87 |
1.84 |
1.84 |
1.81 |
1.79 |
1.75 |
1.75 |
| Grit No |
F54 |
F60 |
F70 |
F80 |
F90 |
F100 |
F120 |
F150 |
F180 |
F220 |
| B.D |
1.72 |
1.72 |
1.69 |
1.65 |
1.61 |
1.61 |
1.59 |
1.57 |
1.56 |
1.52 |
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| 12 |
14 |
16 |
20 |
22 |
24 |
30 |
36 |
40 |
46 |
54 |
60 |
70 |
80 |
90 |
100 |
120 |
150 |
180 |
220 |
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Particle Size Distribution (PSD) |
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| PSD According to ISO, ANSI, FEPA and JIS. |
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| a. In 25kg plastic woven bags. |
| b. In 1000kg big bag. |
| c. 40 x 25kg plastic woven bags in one big bag. |
| d. 40 x 25kg plastic woven bags on pallet. |
| e. 40 x 25kg paper bags on pallet. |
| f. According to client’s special requirement. |
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