| Chemical Composition |
Al2O3: 75% - 90% |
| |
SiO2: 5% - 15% |
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Fe2O3: 1.5% - 3% |
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TiO2: 2% - 4% |
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CaO: 0.5% - 2% |
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MgO: 0.5% - 2% |
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Na2O: 0.2% - 0.8% |
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|
| Physical Properties |
Appearance: Greyish-white to reddish-brown granules |
| |
Mohs hardness: 7 - 8 |
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Density: 3.9 - 4.1 g/cm³ |
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Melting Point: Approximately 2000°C |
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Particle Size: 0-1mm, 1-3mm, 3-5mm, 5-8mm |
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Porosity: Low |
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Specific Gravity: 3.9 - 4.1 |
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Refractive Index: 1.63 - 1.65 |
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| Applications |
Refractory materials |
| |
Abrasives |
| |
High-alumina cement |
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Proppants for hydraulic fracturing |
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Road construction |
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Surface treatment |
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Welding fluxes |
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Foundry applications |
