Fused zirconia mullite nature

Also known as fused zirconia mullite fused mullite brick, commonly known as iron or iron brick tiles, consisting mainly of the mineral  refractory materials  (60% to 70%) of fused cast refractories, is a weak acid refractories. The main component of an alumina content of 65% to 75%, a silica content of about 25% of the total oxides of the other 5% to 8%. Cast of relatively dense  crefractory materials brick, refractoriness of 1730 ~ 1800 ℃, load softening temperature of the beginning of 1700 ℃, high temperature strength and wear resistance, corrosion resistance is strong. A low coefficient of thermal expansion. Thermal conductivity is higher, therefore, thermal shock resistance than other cast brick well. High bauxite, alumina and fireclay industries as raw materials, furnace melting, casting, annealing and made. Mainly used in glass melting furnaces and other industrial kilns