Industry: 3312—Steel Works, Blast Furnaces (Including Coke Ovens), and Rolling Mills
Establishments primarily engaged in manufacturing hot metal, pig iron, and silvery pig iron from iron ore and iron and steel scrap; converting pig iron, scrap iron, and scrap steel into steel; and in hot-rolling iron and steel into basic shapes, such as plates, sheets, strips, rods, bars, and tubing. Merchant blast furnaces and by-product or beehive coke ovens are also included in this industry. Establishments primarily engaged in manufacturing ferro and nonferrous additive alloys by electrometallurgical processes are classified in Industry 3313.

Armor plate, made in steel works or rolling millsRail joints and fastenings, made in steel works or rolling mills
Axles, rolled or forged: made in steel works or rolling millsRailroad crossings, iron and steel: made in steel works or rolling mills
Bars, iron: made in steel works or rolling millsRails rerolled or renewed
Bars, steel made in steel works or hotrolling millsRails, iron and steel
Beehive coke oven productsRods iron and steel made in steel works or rolling mills
Billets, steelSheet pilings, plain: iron and steel-made in steel works or rolling mills
BlackplateSheets, steel: made in steel works or hot-rolling mills
Blast furnace productsShell slugs, steel made in steel works or rolling mills
BloomsSkelp, iron and steel
Car wheels, rolledSlabs, steel
Chemical recovery coke oven productsSpike rods, made in steel works or rolling mills
Coal gas, derived from chemical recovery coke ovensSponge iron
Coal tar crudes, derived from chemical recovery coke ovensStainless steel
Coke, produced in beehive ovensSteel works producing bars, rods, plates, sheets, structural shapes, etc.
Coke, produced in chemical recovery coke ovensStrips, galvanized iron and steel: made in steel works or rolling mills
Distillates, derived from chemical recovery coke ovensStrips, iron and steel: made in steel works or hot-rolling mills
Fence posts, iron and steel: made in steel works or rolling millsStructural shapes, iron and steel
Flats, iron and steel: made in steel works or hot-rolling millsTar, derived from chemical recovery coke ovens
Forgings, iron and steel made in steel works or rolling millsTerneplate
Frogs, iron and steel: made in steel works or rolling millsTernes, iron and steel: long or short
Galvanized hoops, pipes, plates, sheets, and strips iron and steelTie plates, iron and steel
Gun forgings, iron and steel: made in steel works or rolling millsTin-free steel
Hoops, galvanized iron and steelTinplate
Hoops, iron and steel made in steel works or hot-rolling millsTool steel
Hot-rolled iron and steel productsTube rounds
Ingots, steelTubes, iron and steel: made in steel works or rolling mills
Iron sinter, made in steel millsTubing, seamless: steel
Iron, pigWell casings, iron and steel: made in steel works or rolling mills
Nut rods, iron and steel made in steel works or rolling millsWheels, car and locomotive: iron and steel—mitse
Pipe, iron and steel made in steel works or rolling millsWire products, iron and steel: made steel works or rolling mills
Plates, made in steel works or rolling millsWrought pipe and tubing, made in steel works or rolling mills
Codes Titles Number of US Businesses
3312Blast Furnaces and Steel Mills2,547
331200Blast furnaces and steel mills635
33120000Blast furnaces and steel mills635
331201Chemicals and other products derived from coking78
33120100Chemicals and other products derived from coking40
33120103Beehive coke oven products3
33120104Coal gas, derived from chemical recovery coke ovens6
33120105Coal tar crudes, derived from chemical recovery coke ovens1
33120106Coke oven products (chemical recovery), nec3
33120107Coke, produced in beehive ovens1
33120108Coke, produced in chemical recovery coke ovens3
33120109Distillates, from chemical recovery coke ovens0
33120110Light oil crude, from chemical recovery coke ovens6
331202Blast furnace and related products14
33120200Blast furnace and related products11
33120201Iron, pig2
33120202Sponge iron1
331203Primary finished or semifinished shapes35
33120300Primary finished or semifinished shapes17
33120301Billets, steel6
33120302Blooms, steel0
33120303Ingots, steel2
33120304Slabs, steel10
331204Structural and rail mill products197
33120400Structural and rail mill products28
33120401Rail joints or fastenings3
33120402Railroad crossings, steel or iron9
33120403Rails, rerolled or renewed0
33120404Rails, steel or iron40
33120405Structural shapes and pilings, steel117
331205Bar, rod, and wire products173
33120500Bar, rod, and wire products38
33120501Bars and bar shapes, steel, cold-finished: own hot-rolled21
33120502Bars and bar shapes, steel, hot-rolled9
33120503Bars, iron: made in steel mills18
33120504Rods, iron and steel: made in steel mills42
33120505Wire products, steel or iron45
331206Pipes and tubes138
33120600Pipes and tubes59
33120601Pipes, iron and steel41
33120602Tubes, steel and iron38
331207Plate, sheet and strip, except coated products123
33120700Plate, sheet and strip, except coated products17
33120701Armor plate14
33120702Plate, steel48
33120703Sheet or strip, steel, cold-rolled: own hot-rolled24
33120704Sheet or strip, steel, hot-rolled20
331208Tool and die steel and alloys732
33120800Tool and die steel and alloys126
33120801Ferroalloys, produced in blast furnaces1
33120802Stainless steel387
33120803Tool and die steel218
331209Wheels210
33120900Wheels194
33120901Locomotive wheels, rolled1
33120902Wheels, locomotive and car: iron and steel15
331210Coated or plated products49
33121000Coated or plated products19
33121001Black plate1
33121002Galvanized pipes, plates, sheets, etc.: iron and steel23
33121003Plate, terne0
33121004Tinplate6
331299Blast furnaces and steel mills, nec163
33129901Axles, rolled or forged: made in steel mills13
33129902Electrometallurgical steel2
33129903Fence posts, iron and steel31
33129904Forgings, iron and steel31
33129905Hoops, iron and steel3
33129906Iron and steel products, hot-rolled74
33129907Sinter, iron6
33129908Tin-free steel2
33129909Well casings, iron and steel: made in steel mills1