Chemical analysis Al2O3,% 42.73 ZrO2 ,% 42.74 SiO2 ,% 12.84 Na2O ,% 1.28 Fe2O3+ TiO2 % 0.23 Mineralogical analysis Baddeleyite ,% 41.0 Glass phase ,% 17.0 Corundum ,% 42.0 Physical properties Bulk density ,g/cm3 4.05 True density ,g/cm3 4.10 Cold crushing strength ,MPa 200 Refractoriness Under Load(0.2MPa, Ta) C 1700 Thermal expansion(1000C) ,% 0.73 Corrosion resistance in Soda lime glass at 1500, 36hrs ,mm/24hr 1.10 Bubble exudation rate(1300 Cx10hr) % 0.8 Initial exudation of glass phase , C 1400 Applications Glass contact area and superstructure lining in soda lime glass furnace. ZWS cast ( reduced cavity): sidewall Min. bulk density 3.80g/cm3 WS cast (void/cavity free) sidewall, paving bottom, superstructure, feeder channel, doghouse , corner block ec.Min. bulk density 3.85g/cm3 The chemical-physical is typical properties Subject to reasonable variation, and are not Constitute a contractual obligation.