Sillimanite Bricks

Sillimanite is a natural high-grade refractory mineral with the characteristics of low thermal expansion, resistance to corrosion by metallurgical slag and various glass liquids, and good high-temperature wear resistance. Its physical and chemical properties are better than those of high-alumina bricks, with a refractoriness of 1770-1830℃ and a load softening starting point of 1500-1650℃. It is mainly used for the forming of flow holes in glass tank kilns, blast furnace linings, furnace throats, and ceramic industrial kiln furniture. Refractory materials based on natural sillimanite also have these advantages. Therefore, sillimanite refractory materials are widely used in metallurgy, chemical industry, building materials and other industries.