Brown Aluminium Oxide
Type: AE-20 The grains of this kind of product crashed by ball mill machine, its grain shape is more blocky than rolling machine made grains, but its bulk density is less than AE-17 grains. With the medium loose bulk density, and after water washing, strong magnetism removing, very carefully sieve classifying, this kind of abrasive grain normally can match the various vitrified bond Abrasives Products applications. Process way: Ball Mill Machine
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Typical Chemical Analysis
| Al2O3 | Fe2O3 | TiO2 | SiO2 | CaO |
| 95.70% | 0.12% | 2.66% | 0.98% | 0.22% |
Physical Properties
| 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 ℃ |
| Magnetic Material | 0.0076% |
| Toughness | 50.46 |
| Hydrophilic | 34.00 |
Bulk Density Test Value (g/cm3)
| 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 |
Grit Size Available (F)
| 12 | 14 | 16 | 20 | 22 | 24 | 30 | 36 | 40 | 46 | 54 | 60 | 70 | 80 | 90 | 100 | 120 | 150 | 180 | 220 |
Particle Size Distribution (PSD)
| PSD According to ISO, ANSI, FEPA and JIS. |
Packing Way Selection
| 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. |
Products Standard
| F4~F220 Macrogrits Size Distribution |
| F230~F1200 Microgrits Size Distribution |
| Bulk Density Testing Value Comparison Chart |
| Microgrits Grit F230 – F8000 |
| Microgrits Grit F8 – F240 |