High alumina brick is mainly used for build blast furnace, stove, furnace roof, blast furnaces, reverberatory furnace, rotary kiln lining. In addition, high alumina brick is also widely used for open-hearth regenerative checker bricks, pouring system with plug head, nozzle brick. However, price of high alumina brick higher than clay brick the , so use clay brick instead of high alumina brick if both meet requirement.