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Brown fused alumina is bauxite,coke,iron as the main materials,in arc furnace with high temperature melting crystallization and.It has high hardness,toughness,particle Fengrui,grinding force,high temperature resistance,high efficiency is high-quality Abrasives materials and high-grade refractory materials.
Brown corundum sand specifically designed for refractory materials
| Use | Specification | Main chemical composition% | ||||||
| Al₂O₃ | Fe₂O₃ | SiO₂ | TiO₂ | CaO+MgO | C | |||
| AbrasiveTool | F | F12-F24 | 96.0±0.5% | <0.05 | <1.00 | >2.4 | <0.55 | <0.15 |
| F30-F100 | ||||||||
| F120-F220 | ||||||||
| Physical Index | |
| Capillarity | 17mm |
| Compressive Strength | 34N |
| Ball Milling Toughness | 41% |
| Mivtorinox Hardness | 2100HV |
| True Gravity | 3.97g/cm3 |
| Cleanliness | 97.5% |
Special brown corundum sand for grinding tools and abrasives
| Use | Specification | Main chemical composition% | |||||
| Al₂O₃ | Fe₂O₃ | SiO₂ | TiO₂ | Ca0+MgO | |||
| Refractory | Sectionsand | 0-1mm | 95 | <0.30 | <1.00 | >3 | ≤0.55 |
| 1-3mm | |||||||
| 3-5mm | |||||||
| 5-8mm | |||||||
| Physical index | |
| Color | Brown |
| Fefractoriness | >1900℃ |
| Melting point | 2050℃ |
| Compressive Strength | 34N |
| Molding toughness | 85% |
| True specific gravity | 3.97g/cm3 |
| Magnetic material | <0.05% |
| Grain composition | Upper and lower limit not exceeding 10%or performing customer standards |
