Al2O3 : 74-76 % Water Absorption: 8-9 % Bending Resistance: 55-60 Mpa Density : 2.5-2.55 g/cm3 Thermal Shock Resistance: very good Thermal Expansion: 5.7 10-6xK-1 (20-1000 0C) Maximum Working Temperature: 1300 0C Refractoriness: 1800 0C. Wooden box , thermocal.
