What's New ENGINEERED CERAMICS' MOR SHOCK MULLITE materials are designed specifically for use in thermal shock applications. MOR SHOCK Products provide a cost-effective, high strength alternative to traditional high-alumina refractories and lower cost cordierite refractories. MOR SHOCK GTS is an excellent low cost, mullite material that stands up to thermal processes and maximizes mechanical strength. MOR SHOCK STS is intended for those applications where the maximum thermal shock resistance is required. Data Chart Nominal Chemical Composition MOR Shock GTS MOR Shock STS Al2O3 (wt%) 66-70 67-73 SiO2 (wt%) 26-30 24-28 Fe2O3 (wt%) 0.8-1.0 0.7-0.9 Other (wt%) 2.1-2.3 1.8-2.0 Bulk Density (g/cm3) 2.4-2.5 2.4-2.5 Bulk Density (lbs/ft3) 147-153 147-153 Apparent Porosity (%) 13-17 14-17 Maximum Operating Temperature 2750F 1510C 2750F 1510C MOR (MPa) MOR (psi) 41.4 6000 31.4 4560 Hot MOR (MPa) At 2500F for 12 hrs (psi) 14.6 2110 13.1 1900 Thermal Shock Resistence Good Very Good Data represents average results of standard tests conducted under controlled conditions and are subject to usual variations. They should not be used for specifying products.