According to customer requirements of various types of corundum products

Alumina content greater than 90%, with corundum crystal phase refractory products. High compressive strength at room temperature (up to 340MPa). High load softening start temperature (greater than 1700 ℃). Good chemical stability, acidic or basic slag, metal and glass fluid, etc. have a strong resistance. Thermal shock resistance related to its organizational structure, good resistance to erosion dense products, but poor thermal shock resistance. Divided into two sintered corundum brick brick and fused corundum. Sintered bauxite and alumina respectively sintered alumina and fused alumina as raw material or Al2O3 / SiO2 ratio with, using a sintering method. Can also be made of phosphoric acid or other adhesive does not burn corundum brick. Mainly used outside blast furnaces and hot blast furnace, steel refining furnace, water slide, glass melting furnaces and furnace oil and chemical industry.