AK Steel produces flat-rolled carbon, stainless and electrical steel products, as well as carbon and stainless tubular steel products, for automotive, appliance, construction and manufacturing markets.

AK Steel maintains a relentless pursuit of improvement in every critical performance measure. The result is a track record without equal.

We are a Fortune 500 company with more than $6 billion in sales and major plants and offices in Ohio, Indiana, Kentucky and Pennsylvania.

Steel Dynamics, Inc. (SDI) is the nation’s fifth largest producer of carbon steel products with 2006 annual revenues of $3.2 billion and annual shipments of 4.7 million tons. SDI operates five electric-furnace mini-mills and employs about 3,500. In 2006 about 50 percent of the company's shipments were flat-rolled steel and the remainder was "long products" (bars and beams) and fabricated products. SDI is among the most profitable American steel companies in terms of profit margins and operating ...

Mechel OAO, an open joint stock company, through its subsidiaries, operates as a mining and steel company. The company engages in the production and sale of coking and steam coal concentrate, steam coal, iron ore concentrate, and ferronickel that are used in the production of steel. It also produces semi-finished steel products; carbon and specialty long products; carbon and stainless flat products; value-added downstream metal products, including hardware, forgings, and stampings; high grade fe ...

Reliance Steel Aluminum Co. (NYSE:RS) is one of the largest metals service center companies in the United States. Through a network of more than 180 locations in 37 states, Belgium, Canada, China and South Korea, the Company provides value-added metals processing services and distributes a full line of more than 100,000 metal products. These products include galvanized, hot-rolled and cold-finished steel, stainless steel, aluminum, brass, copper, titanium and alloy steel sold to more than 125,00 ...

Reliance Steel Aluminum Co. (NYSE:RS) is one of the largest metals service center companies in the United States. Through a network of more than 180 locations in 37 states, Belgium, Canada, China and South Korea, the Company provides value-added metals processing services and distributes a full line of more than 100,000 metal products. These products include galvanized, hot-rolled and cold-finished steel, stainless steel, aluminum, brass, copper, titanium and alloy steel sold to more than 125,00 ...

Ternium S.A., through its subsidiaries, engages in the manufacture and distribution of flat and long steel products. It operates in three segments: Flat Steel Products, Long Steel Products, and Others. The Flat Steel Products segment manufactures and markets flat steel products, including hot rolled coils and sheets, cold rolled coils and sheets, tin plate, welded pipes, hot dipped galvanized and electrogalvanized sheets, and prepainted sheets. The Long Steel Products segment manufactures and ma ...

Companhia Sider�rgica Nacional (CSN) primarily operates as an integrated steel producer in Brazil. It produces a line of steel products, including slabs, which are semifinished products used for processing hot-rolled, cold-rolled, or coated coils and sheet products; hot-rolled products comprising heavy-gauge hot-rolled coils and sheets, and light-gauge hot-rolled coils and sheets; cold-rolled products, including cold-rolled coils and sheets; and galvanized products consisting of flat-rolled stee ...

Nucor Corporation, through its subsidiaries, engages in the manufacture and sale of steel and steel related products in the United States. It operates in two segments, Steel Mills and Steel Products. The Steel Mills segment offers hot-rolled steel products, such as angles, rounds, flats, channels, rebar, sheets, wide-flange beams, pilings, billets, blooms, beam blanks, and plates; and cold-rolled steel. The Steel Products segment manufactures steel joists and joist girders, steel deck, cold fini ...

POSCO engages in the manufacture and sale of various steel products primarily in Korea. It offers hot rolled products that are used in the manufacture of structural steel used in the construction of buildings and bridges, railway rolling stocks, industrial pipes and tanks, and automobile chassis; and plates, which are used in shipbuilding, structural steelwork, offshore oil and gas production, power generation, and mining, as well as in the manufacture of earth-moving and mechanical handling equ ...

Companhia Vale do Rio Doce, together with its subsidiaries, operates as a diversified metals and mining company worldwide. It produces, exports, and supplies iron ores and pellets to the steel making industry, as well as manganese ores and iron alloys, including metallurgical ore used primarily for the production of ferroalloys; natural manganese dioxide used for the manufacture of electrolytic batteries; and chemical ore used in various industries for the production of fertilizer, pesticides, a ...