Nucor is a company that manufactures steel and steel products. It operates in three segments: Steel Mills, Steel Products, and Raw Materials. The Steel Mills segment produces sheet, plate, structural, and bar steel. The Steel Products segment offers joists and joist girders, galvanized torque tubes, fasteners, metal panels, warehouse racking systems, etc. The Raw Materials segment provides scrap metal brokerage, ferrous and nonferrous metal recycling, transportation, and other services.