brown aluminium oxide
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Brown corundum is a kind of non-metallic material made of bauxite material smelted by high-temperature electric furnace, which is then crushed and selected into various particle size specifications.
Brown corundum features
Aluminum content is greater than 95%, wear resistance, pressure resistance, good strength, sandblasting is not easy to break, so it can generally be used repeatedly.
Brown corundum physical properties
| Color | Dark brown color (dark blue after calcination) |
| Hardness (Mohs) | ≥9.0 |
| Melting point (℃) | 2250 |
| High operating temperature (℃) | 1900 |
| True density (g/cm3) | ≥ 3.90 |
| Linear expansion coefficient (0-1600 ℃) | 7-9 |
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