This is a detailed analysis of key refractory materials in steel metallurgy - high alumina and aluminum magnesium base bricks. Seat bricks are the core components used to fix and guide water outlets (such as long water outlets and sliding water outlets) at the bottom of equipment such as ladles and intermediate ladles. The working conditions are extremely demanding, and the material performance requirements are extremely high.The seat brick is located at the bottom of the ladle and needs to withstand:High temperature molten steel (approximately 16 static pressure and thermal shock).Chemical erosion and scouring of molten steel and slag.Mechanical stress caused by installation and disassembly of water outlets.Intense temperature cycling (from room temperature to high temperature multiple times).Therefore, the material selection is directly related to the smoothness of the continuous casting process, the quality of the molten steel, and production safety.Long term lifespan and compatibil…