Chemical analysis Al2O3,% 47.35 ZrO2,% 37.0 SiO2,% 14.0 Na2O,% 1.40 Fe2O3+ TiO2 ,% 0.25 Mineralogical analysis Baddeleyite ,% 36.5 Glass phase ,% 20.0 Corundum,% 43.5 Physical properties Bulk density ,g/cm3 3.80 True density ,g/cm3 3.94 Cold crushing strength ,MPa 200 Refractoriness Under Load(0.2MPa, Ta) C 1700 Thermal expansion(1000C) ,% 0.8 Corrosion resistance in Soda lime glass at 1500, 36hrs ,mm/24hr 1.50 Bubble exudation rate(1300 Cx10hr) % 1.50 Initial exudation of glass phase ,C 1400 Applications Glass contact area and superstructure lining in soda lime glass furnace. PT cast (Regular cast, Normal cavity): crown Min. bulk density 3.65g/cm3 ZWS cast ( reduced cavity): sidewall Min. bulk density 3.70g/cm3 WS cast (void/cavity free) sidewall, Min. bulk density 3.85g/cm3 The chemical-physical is typical properties Subject to reasonable variation, and are not Constitute a contractual obligation.