Due to its high temperature resistance, high strength and corrosion resistance, the sliding nozzle of the pouring steel is used to smelt rare metals, special alloys, ceramics, and linings (walls and pipes) of ironmaking blast furnaces; Thermal antioxidant coating.
Fused alumina insulation materials, such as corundum light bricks, corundum hollow balls and fiber products, corundum refractory bricks, corundum refractory cement, are widely used in furnace walls and roofs of various high-temperature furnaces. Both high temperature resistance and thermal insulation.