Shape Blocky, tough and sharp
Crystal Form Alpha-alumina trigonal system
It is a kind of regular Brown Aluminum Oxide abrasive grains, the shape of the grain is blocky and edge sharp with the high 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, It is mainly used in making vitrified bonded grinding wheels. As loose grains, it is widely used for pressure blasting, surface finish and other general industrial applications.
| Typical Chemical Analysis | |
| | 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 °C | | Magnetic Material | 0.0076% | | Toughness | 50.46 | | Hydrophilic | 34.00 |
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| | Bulk Density Test Value (g/cm3) | |
| | Grit No | F12 | F14 | F16 | F20 | F22 | F24 | F30 | F36 | F40 | F46 | | B.D | 2.04 | 2.03 | 2.00 | 1.98 | 1.96 | 1.94 | 1.92 | 1.91 | 1.85 | 1.85 | | Grit No | F54 | F60 | F70 | F80 | F90 | F100 | F120 | F150 | F180 | F220 | | B.D | 1.83 | 1.80 | 1.79 | 1.77 | 1.75 | 1.68 | 1.65 | 1.64 | 1.61 | 1.59 |
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| | 8 | 12 | 14 | 16 | 20 | 22 | 24 | 30 | 36 | 40 | 46 | 54 | 60 | 70 | 80 | 90 | 100 | | 120 | 150 | 180 | 220 | 240 | 280 | 320 | 360 | 400 | 500 | 600 | 800 | 1000 | 1200 | | | |
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| | Particle Size Distribution (PSD) | |
| | 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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Brown Fused Alumina
