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Tabular Alumina Ball Product information PHCtabular alumina balls are sintered alpha alumina with very high-purity.The alumina is a form of pure aluminum oxide which has been fired at such high temperatures(well over 1900 degrees C) that practically all porosity and shrinkage areremoved. It is essentially 100 percent alpha alumina. When the internal crystalline structure of tabular alumina is examined, large plate-like or tablet-like crystals are apparent. The shape of these crystals gives “Tabular” alumina its name. The properties of Tabular alumina balls make them ideal in application as inert catalyst bed supports. Properties of Tabular Alumina Balls Typical Properties Tabular Alumina Ball Al2O3,% 99.7 SiO2,% 0.01 Bulk density(g/cc) 2.16 Apparent Porosity,% 1.5 Water Absorption,% 0.4 Specific Gravity 3.6-3.8