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Normal electro corundum belongs to the group of electro-corundum. It is produced by controlled melting of calcined bauxite in an electric arc furnace. Normal electro corundum is iron-free and extremely tough.
Normal electro corundum Specification
Items | Unit | Index | Typical | |
Chemical Composition | Al2O3 | % | 95%min | 95.6 |
SiO2 | % | 1.50max | 1.36 | |
Fe2O3 | % | 0.30max | 0.07 | |
TiO2 | % | 3.00max | 2.05 | |
CaO+MgO | % | 1.0max | 0.7 | |
Melting point | °C | 2050 | ||
Refractoriness | °C | 1980 | ||
True density | g/cm3 | 3.90min | ||
Mohs hardness | --- | 9.00min | ||
Grain size | mm | 0-50,0-1, 1-3, 3-5,5-8 | ||
Fine powder | mesh | -80, 100, 150, 200, 325F | ||
Abrasive grade | FEPA | F14---F30—F150-F220 | ||
Normal electro corundum application
Reusable abrasiveGrinding, lapping and polishing mediumCeramic grinding wheels and grinding mediaWear-resistant and refractory products1.Brown Fused Alumina for abrasive and refractory2.Al2O3 :95%MIN3.Alumina Oxide4.electro-corundumItems | Unit | Index | Typical | |
Chemical Composition | Al2O3 | % | 95%min | 95.6 |
SiO2 | % | 1.50max | 1.36 | |
Fe2O3 | % | 0.30max | 0.07 | |
TiO2 | % | 3.00max | 2.05 | |
CaO+MgO | % | 1.0max | 0.7 | |
Melting point | °C | 2050 | ||
Refractoriness | °C | 1980 | ||
True density | g/cm3 | 3.90min | ||
Mohs hardness | --- | 9.00min | ||
Grain size | mm | 0-50,0-1, 1-3, 3-5,5-8 | ||
Fine powder | mesh | -80, 100, 150, 200, 325F | ||
Abrasive grade | FEPA | F14---F30—F150-F220 | ||
Normal electro corundum for abrasive and refractory