Ryerson Holding Corporation, along with its subsidiaries, processes and distributes industrial metals in the United States and internationally. Its product line includes carbon steel, stainless steel, alloy steels, aluminum, nickel, and red metals in forms such as coils, sheets, rounds, hexagons, square and flat bars, plates, structural shapes, and tubing. The company also provides processing services and serves industries including commercial transportation, fabrication and welding, machinery and equipment, consumer products, heavy equipment, climate, power, and machine shops. Founded in 1842, Ryerson Holding Corporation is headquartered in Chicago, Illinois.