This U.S. industry comprises establishments primarily engaged in manufacturing electrometallurgical ferroalloys. Ferroalloys add critical elements, such as silicon and manganese for carbon steel and chromium, vanadium, tungsten, titanium, and molybdenum for low- and high-alloy metals. Ferroalloys include iron-rich alloys and more pure forms of elements added during the steel manufacturing process that alter or improve the characteristics of the metal being made.
Cross-References. Establishments primarily engaged in--
| Go to: | No change 2002 to 2007 | No change 1997 to 2002 | 2002 Economic Census and other data sources |
| 2007 NAICS | 2002 NAICS | 1997 NAICS |
Corresponding Index Entries |
|---|---|---|---|
| 331112 | 331112 | 331112 | Electrometallurgical ferroalloy manufacturing |
| 331112 | 331112 | 331112 | Ferroalloys manufacturing |
| 331112 | 331112 | 331112 | Ferrochromium manufacturing |
| 331112 | 331112 | 331112 | Ferromanganese manufacturing |
| 331112 | 331112 | 331112 | Ferromolybdenum manufacturing |
| 331112 | 331112 | 331112 | Ferrophosphorus manufacturing |
| 331112 | 331112 | 331112 | Ferrosilicon manufacturing |
| 331112 | 331112 | 331112 | Ferrotitanium manufacturing |
| 331112 | 331112 | 331112 | Ferrotungsten manufacturing |
| 331112 | 331112 | 331112 | Ferrovanadium manufacturing |
| 331112 | 331112 | 331112 | High percentage nonferrous alloying elements (i.e., ferroalloys) manufacturing |
| 331112 | 331112 | 331112 | Manganese metal ferroalloys manufacturing |
| 331112 | 331112 | 331112 | Molybdenum silicon ferroalloys manufacturing |
| 331112 | 331112 | 331112 | Silicomanganese ferroalloys manufacturing |
| 331112 | 331112 | 331112 | Spiegeleisen ferroalloys manufacturing |
