MgO-Cr₂O₃ brick is a composite basic refractory material composed of chrome ore and magnesia. It is compressed into shapes through different combinations and is burned at high or ultra-high temperature. It has excellent slag resistance, high-temperature strength, corrosion resistance and fatigue resistance. It is suitable for AOD refining furnace, DH, RH degasser, VOD refining furnace lining, non-ferrous smelting furnace lining and cement kiln.