1 AL2O3 content 99.47%
2 grit size:F8-F220
3 for grinding and polishing
4 comply with FEPA standard
5 good service
white fused alumina It is a kind of white fused alumina electrically fused in arc furnace with high grade processed alumina as raw material. It has higher hardness and slight lower toughness comparing with brown fused alumina. It is also characterized by its high purity, ability of self-sharpening, better cutting, less heat emit, higher efficiency, acid and alkali resistance, good thermal stability. As an abrasive, it is suitable ofr grinding high-speed, high carbon steel, as loose grains, it widely used for polishing, precision casting, spring and coating. | |
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| Typical Chemical Analysis | |
| Al2O3 | Fe2O3 | Na2O | SiO2 | CaO | TiO2 | 99.47% | 0.05% | 0.25% | 0.12% | 0.01% | 0.008% |
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| | Color | Brilliant white | Shape | Angular and sharp | Crystal Form | Alpha-alumina | True Specific Gravity | 3.95 g/cm3 | Hardness | 2090 Knoop scale; 9.0 Mohs scale | Refractory Degree | About 1800 oC | Magnetic Material | 0.0035% |
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| | 8 | 12 | 14 | 16 | 20 | 22 | 24 | 30 | 36 | 40 | 46 | 54 | 60 | 70 | 80 | 90 | 100 | 120 | F150 | F180 | F220 | | | | | | | | | | | |
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| Bulk Density Test Value (g/cm3) | |
| Grit No | F12 | F14 | F16 | F20 | F24 | F30 | F36 | F46 | B.D | 1.99 | 1.96 | 1.93 | 1.87 | 1.87 | 1.87 | 1.85 | 1.80 | Grit No | F60 | F70 | F80 | F100 | F120 | F150 | F180 | F220 | B.D | 1.76 | 1.74 | 1.70 | 1.69 | 1.67 | 1.64 | 1.60 | 1.55 |
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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. | f. According to client’s special requirement. |
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white alumina
