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Brown corundum is made from fine bauxite melted in electric arc furnace. It is in brown color.The main component is a-Al2O3.it is of fine fire-proof and excellent wear resistance.It is a main raw material for production of middle and low level unshaped and shaped fire-proof materials.
Items | Unit | Index | |
Chemical composition | Al2O3 | % | 95min |
SiO2 | % | 1.5max | |
Fe2O3 | % | 0.3max | |
TiO2 | % | 3.00max | |
CaO | % | 1.0max | |
Melting point | °C | 2050 | |
Refractoriness | °C | 1980 | |
True density | g/cm3 | 3.90min | |
Mohs hardness | --- | 9.00min |
Abrasive grade:F14-F30-F150-F220
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Brown Fused Alumina