Product Description Packing Mall 65%-70% Porcelain ceramic ball is in chemical composition70+% alpha alumina and a maximum 0.2wt% SiO2. Because of its high alumina content and low silica (SiO2 ), it's a very excellent and ideal product for high temperature and steam applications, such as secondary reformers in ammonia processing, where leached silica will coat downstream equipment or foul the catalyst bed. The 65 Alumina Support Media has very excellent thermal properties, with its high density high-temperatur resistance 1450鈩? also it's a good choice for heat retention or equilibration media. For its superior chemical resistance, it's suitable for applications in olefin processes, such as ethylene dryers, where there's the polymerization problem Typical application a) high temperature and steam b)has very excellent thermal properties, with its high density high-temperature resistance 1450, c)it's suitable for applications in olefin processes, such as ethylene dryers Technical data Model:PM ceramic ball 65-70 Color:White gray Shape:Ball Typical Technical CompositionMin. %Max. %Usual % SiO2232825 Al2O3657068 Fe2O3******0.30.02 TiO2******0.10.02 CaO******41.50 MgO******0.10.05 Na2O******0.250.1 K2O******0.20.13 Physical properties IndexValueValue Leachable Iron鈮?0.01% Apparent Porosity by Weight鈮?7.0% Moh's Hardness Scale>7.0 Water Absorption99.8% Thermal Conductivity0.8-0.9 w/m2 .k Thermal Expansion @ 5000.10% Thermal Shock Stability, 1000 then water cooling10 times Max. Operating Temperature1750掳C Specific Density2.3g /cm3 Bulk Density (Packing Density)1.65 g /cm3 SizeCrush Strength Nominal Size(lbs)(kg)(N/pc) mminchmin.min.min. 51/4"2251021000 103/8”3001372400 Size tolerance Diameter 肖368101316202530385075 Size tolerance卤1.0卤1.5卤2.0卤3.0Inert Ceramic Ball for sale website:http://www.pm-chem.com/ceramic-ball/inert-ceramic-ball/