alumina ceramic ball

Ceramic ball are widely used as the covering or supporting materials of the catalyst in the reactors and the packing in the columns in many fields such as petroleum, chemical industry, chemical fertilizer, natural gas and environmental protection etc.Chemical compositionIndexValueSiO275.00Al2O326.00Fe2O30.12TiO21.40CaO0.65MgO0.60Na2O2.00K2O3.50Al2O3 + SiO296.00Physical propertiesIndexValueLeachable Iron≤ 0.1%Apparent Porosity by Weight, dia. ≥ 10mm≤ 0.4%Apparent Porosity by Weight, dia. = 6mm≤ 1.0%Apparent Porosity by Weight, dia. = 3mm≤ 1.0%Moh's Hardness Scale>6.5Water Absorption<1.0wt.%Acid Resistance>99.8%Thermal Conductivity0.9-1.0 w/m 2 .kThermal Expansion @ 5000.20%Specific Heat628-837 j/kgqThermal Shock Stability, 500 then water cooling10 timesMax. Operating Temperature1050Specific Density2,350 kg /m3Bulk Density (Packing Density)1,400 g /cm3Crush Strength Size /Crush StrengthNominal Size(lbs)(kg)(N/pc)mmInchmin.min.min.31/8502322561/412356550103/820292902131/23851751716165/85202362315193/4978444435525114286486355381-1/2202091689835022987135513288