Zirconium fused alumina

Product characteristics

Zirconium fused alumina is obtained from alumina with addition of zirconium oxide. Zirconium fused alumina is characterised by the highest mechanical endurance among the group of aluminium oxides. Zirconium fused alumina is the second hardest material after the diamond.



  • Al2O3 – 72-78%
  • ZrO2 – 23-25 %
  • Colour: grey
  • Specific gravity – 4,2g/cm3
Used in high performance grinding of cast iron, in grinding of steel semi-finished products with high pressures.

Additional information

Available sizes

According to standard:
FEPA range F 008 – F 220,

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