What Is Corundum Brick

Corundum brick refers to refractory material products with alumina content greater than 90% and corundum as the main crystal phase. High room temperature compressive strength (up to 340MPa). The starting temperature for high load softening (greater than 1700 ℃). Good chemical stability, strong resistance to acidic or alkaline slag, metals, and glass liquids. The thermal shock stability is related to its organizational structure. Dense products have good corrosion resistance, but poor thermal shock stability.
Corundum bricks have been widely used as lining materials in petrochemical thermal units with high temperature, high pressure, chemical erosion, and severe mechanical wear. With the advancement of production technology in the petrochemical industry, many new processes and technologies have been adopted in production. In order to achieve the goals of high load, long cycle, low energy consumption, and low cost of equipment, in addition to renovating various thermal equipment, higher requirements have been put forward for the lining materials of various thermal equipment. Therefore, a series of chromium corundum products with better high temperature resistance and corrosion resistance have been developed to meet the needs of the petrochemical industry.