Ladle castables are characterized by high strength, good seismic resistance, corrosion resistance and good volume stability. It is applicable to ladle bottom, ladle wall, slag line and other parts. In particular, the corundum spinel castable developed by the new electric technology can be used in the bottom and wall of the refining ladle of the large electric furnace and the large converter, which can significantly improve the service life of the ladle. Fused magnesia