Color:Dark brown;
Shape:Very Sharp;
Crystal Form:Alpha-alumina trigonal system
AF-20B
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 BMK machine made grains. With the medium loose bulk density, and after wind blowing dust collection way, strong magnetism removing, very carefully sieve classifying, this kind of abrasive grain normally can match the various Bonded Abrasive Products applications
Typical Specification (F30) |
| Chemical | Al2O3 | Fe2O3 | TiO2 | SiO2 | 95.52% | 0.08% | 2.68% | 0.92% | Bulk Density | 1.76g/cm3 | Magnets | 0.0076% |
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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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| 8 | 12 | 14 | 16 | 20 | 22 | 24 | 30 | 36 | 40 | 46 | 54 | 60 | 70 | 80 | 90 | 100 | 120 | 150 | 180 | 220 | | | | | | | | | | | | | |
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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 |
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Particle Size Distribution (PSD) |
| PSD According to ISO, ANSI, FEPA and JIS |
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