Normal magnesia brick is made of Alumina-Magnesia spinel, periclase, It has higher temperature strength, good thermal shock stability, strong resistance to basic slag.

• 普通镁铝以镁铝尖晶石和方镁石为主要晶相，具有较高的高温强度和较好的热稳定性，抗碱性炉渣侵蚀。