Sillimanite brick

Sillimanite brick Sillimanite Refractories with high density and excellent thermal shock resistance are generally used in the construction of furnaces especially where great importance is attached to thermal and mechanical resistance. For instance, it is used in glass melting tank superstructure. Item Sillimanite Refractories S62 Al2O3,% ≥62Fe2O3,% ≤1.2Bulk density, g/cm3 ≥2.47Apparent porosity, % ≤17Cold crushing strength, MPa ≥80Thermal shock resistance GoodRefractoriness under load, oC ≥1680Thermal expansion coefficient (1000),% 0.6