Life of steel ladle refractories largely depend on the performance of bottom refractory as it is difficult to rebuild. The main attacking force in bottom impact area is severe mechanical impact, apart from abrasion and steel penetration, prevalent in bottom non-impact area. The refractory life in high capacity ladles are treated separately because the working lining refractories counter severe thermo-mechanical stresses in high capacity ladles than in small capacity ladles. As a consequence, selection of proper type of refractories and lining pattern become vital for high capacity steel ladle. Refractory makers recommend among MgO-C, Al_2O_3-MgO-C, MgO-MgAl_2O_4-C or Castable depending on vessel metallurgy. The brick laying pattern also optimizes bottom refractories performance. The present paper describes the material selection and the lining design pattern of the newly developed AMC (Al_2O_3-MgO-C) brick, which have been commercially manufactured in our plant at Poland and supplied to a 5 million tonnes per annum integrated steel plant in Europe in their 350 ton capacity steel ladle and preformed well.
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