Brief Introduction
Tabular Alumina is a high-purity, high-density, grain-boundary-free aluminum oxide material, whose Al2O3 content is usually above 99%.
Tabular Alumina uses industrial alumina as the raw material,and is sintered in high-temperature vertical kiln with a temperature greater than 1900℃.The product is made of granular corundum crystals closely arranged,evenly distributed to each other,to achieve the best density and inter-granular strength.With high purity,low alkali,high strength,high thermal shock resistance,corrosion resistance properties,it mainly used as alumina base and alumina containing refractory bone material and substrate.
Technical Data
The price of tabular alumina varies depending on the brand, specification and application. The following are Rongsheng’s reference specifications, and our products support customization!
| Item | Unit | Grain | Fine Powder |
| Al₂O₃ | % | ≥99.40 | ≥99.40 |
| Na₂O | % | ≤0.40 | ≤0.40 |
| SiO₂ | % | ≤0.09 | ≤0.09 |
| Fe₂O₃ | % | ≤0.07 | ≤0.09 |
| Magnetic Iron | % | ≤0.02 | ≤0.03 |
| Bulk Density | g/cm³ | ≥3.5 | ≥3.5 |
| Apparent Porosity | % | ≤5.0 | ≤5.0 |
| WaterAbsorption | % | ≤1.5 | ≤1.5 |
Application
It is widely used in metallurgical refractory materials (slide,nozzle,porous plug brick,etc.),ceramic, chemical,glass,abrasives and other industries with refractory materials figured.