An alumina-titanium oxide-zirconia fused grain presenting, for a total of 100%, the following chemical composition: Al.sub.2O.sub.3: more than 10% and less than 50%; TiO.sub.2: more than 10% and less than 40%; ZrO.sub.2: more than 50%; and impurities: less than 2%; the percentages being percentages by weight on the basis of the oxides. The invention is applicable to slide gates for continuous casting of steel.