Steel Dynamics, Inc. (SDI) is a steel producing and a metal recycling company. The Company operates in three segments: steel operations, metals recycling and ferrous resources operations, and steel fabrication operations. The Company offers hot roll, cold roll, galvanized, galvanneal, Galvalume, Galfan, and painted sheet steel; a range of structural steel beams and rails; engineered steel of various sizes and chemistries; and various merchant-bar products, rounds, angles, flats and channels. The Company also offers steel finishing and fabrication services. In the metals recycling operations of its metals recycling and ferrous resources segment, its products include an array of both ferrous and non-ferrous scrap processing, scrap management, transportation, and brokerage products and services. Its steel fabrication segment produces steel joists and steel decking materials.