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Al2O3-SiC-C castables for iron trough with fused magnesia powder (0, 3%, 6%, 9% and 12%) were prepared with brown fused corundum particles (5-3 mm, 3-1 mm, ≤1 mm), white fused corundum powder (≤0.088 mm), SiC particle (≤1 mm) and powder (≤0.088 mm), fused