ALUMINA BRICKS Our alumina bricks have a tendency of low wear rate because of high quality materials.For your usage preferences, we have diffrent manufacturing processes. Alumina bricks have long lifetime.When compared to rubber linings, alumina bricks are %15 more efficient Technical InfoAl2O3 ≥ 92 %SiO2 ≤ 7 %Bulk density (g/cm3) ≥ 3.57Hardness (Mohs) ≥ 9Water Absorptions 0.01Color White Home Company Products Services