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 |
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