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KT Refractories US Company

Refractory Raw Material - Tabula Alumina Balls, Tabula Alumina

Tabular Alumina Balls

Tabular alumina balls are sintered alpha alumina with very high-purity ,are high-density, fully shrunk, coarse crystalline alpha aluminas. 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.

Tabular alumina is produced by sintering ball- formed calcined alumina at a very high temperature around 2040°C (3704°F), which is the fusion point of aluminium oxide. The alumina is form of pure aluminum oxide - because practically all porosity and shrinkage is removed under such high temperature. Essentially it is 100 percent alpha alumina (corundum).

These tabular alumina balls are then crushed, graded or screened, and ground to a wide range of granular or powdered particle-size distributions. Tabular Alumina can be in appearance of white crystalline granules or powder. Depending on requirements, ball sizes are produced from 1/8 to 1 inch (tolerance ± 1 mm)

Application for Tabular Alumina Balls:

  • ideal in applications such as inert catalyst bed supports
  • regenerative burner bed applications
  • deep bed molten aluminium filtration
  • Heat exchange media
  • are suitable as catalyst reactor
  • desiccant bed supports
  • or for ballast under exposure to high temperature
  • severe corrosive conditions
  • Benefits of tabular alumina balls

    Tabular alumina balls are long lasting, smooth, good thermal shock properties and very good resistance to the mechanical and abrasive actions found in catalyst support systems, high chemical purity, do not produce fines and dust to contaminate the product stream, and are unaffected by either oxidizing or reducing atmospheres at temperatures well below the softening point.

    Contact KT refractories for Tabular Alumina, Tabular Alumina Balls or other refractory raw material to save you both time and money!

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    Tabular Alumina Balls Data Sheet:

    All information in this data sheet is based on indications of the producer and on current knowledge. All information in this data sheet does not represent any guarantee.

    Chemical Analysis %






















    Apparent Porosity



    3.54 g/cm³ (uncrushed material)



    Water absorption



    Standard sizes: ½” - ¼”, ¼” -8, 3-6, 6-10, 6-14, 8-14, 14-28, 28-48, -14, -28, -48, -100, -325 mesh

    5-10, 2-5, 3-6, 2-3, 1-3, 1-2, 0.5-1, 0.2-0.6, 0-1, 0-0.5, 0-0.3, 0-0.2, 0-0.045 mm

    Other sizes available per customer's requirement.

    Packing: 25 kg/bag or 1 MT/bag