Refractory materials are used in the iron and steel industry for a variety of purposes. These materials are used in furnaces, boilers and other high-temperature applications to provide heat insulation, protection from corrosion and erosion, and resistance to abrasion. Common refractory materials used in the iron and steel industry include fireclay bricks, high-alumina refractories, magnesia-carbon bricks, magnesite-chrome bricks, silica-magnesia refractories, and zirconia refractories.