... 32Refractoriness under load,0.2MPa, Ta, (°C)1300Porosity (%)22-26Bulk density (g/cm³)2.05Cold crushing strength (MPa)25Thermal expansion at ... 34Refractoriness under load,0.2MPa, Ta, (°C)1350Porosity (%)19-23Bulk density (g/cm³)2.10-2.15Cold crushing strength (MPa)25Thermal ... under load,0.2MPa, Ta, (°C)1450Porosity (%)20-24Bulk density (g/cm³)2.30-2.40Cold crushing strength (MPa)45Thermal ...