High alumina brick, also called high alumina refractory brick, is a kind of refractory material with very hard appearance and smooth surface. It is mainly used for masonry of blast furnace, hot blast furnace, electric furnace roof, blast furnace, reflector furnace and rotary kiln lining. In addition, high alumina bricks are also widely used as lattice bricks for storage heaters in flat furnaces, plug heads for pouring systems, water spout bricks, etc. However, the price of high alumina brick is higher than that of clay brick, so it is not necessary to use high alumina brick where clay brick can meet the requirements.
