High Alumina Bricks Series

High alumina brick is a kind of refractory, the main component of which is Al₂O₃. If Al₂O₃ content is higher than 90%, it is called corundum brick. Due to different resources, the standards of different countries are not completely consistent. For example, in European countries, the lower limit of Al₂O₃ content for high alumina refractories is 42%. In China, Al₂O₃ content in high alumina brick is generally divided into three grades: Grade I - Al₂O₃ content > 75%; grade II - Al₂O₃ content is 60-75%; grade III - Al₂O₃ content is 48-60%.

High alumina bricks are popularly used for the masonry of industrial kilns inner linings, such as blast furnaces, hot blast furnaces, electric furnace top, reverberator, rotary cement kiln and so on. Besides, high alumina bricks are also widely used as regenerative checker bricks, stopper of continuous casting system, nozzle bricks, etc.