Alumina-spinel castables (GBJ-90 and GBJ-85) composed of petroleum fused white corundum, sintered plate corundum, pure spinel and other main raw materials, used as side casting ladle lining has good resistance Slag erosion and impermeability.
High alumina-spinel castables (GBJ-80 and GBJ75) are made of sintered super-grade bauxite and natural synthetic spinel as raw materials, which have good corrosion resistance, erosion resistance and thermal shock resistance. Its service life is 1~3 times higher than that of aluminum-magnesium castable combined with water glass. GBJ-90 and GBJ-85 casting materials can be used for ladle materials above 100 tons, GBJ-80 casting materials can be used for 50~90 tons ladle materials, and GBJ-75 casting materials can be used for steel ladle materials under 50 tons.