|
| TABLE 4 | ||||||||||||
| REPORTED CONSUMPTION, BY END USE, AND STOCKS OF SILICON FERROALLOYS AND METAL IN THE | ||||||||||||
| UNITED STATES IN 20061, 2 | ||||||||||||
| (Metric tons, gross weight) | ||||||||||||
| Silvery | Ferrosilicon, | Ferrosilicon, | Silicon | Miscellaneous | Silicon | |||||||
| End use | pig iron3 | 50%4 | 75%5 | metal6 | silicon alloys7 | carbide8 | ||||||
| Steel: | ||||||||||||
| Carbon and high-strength, low-alloy | -- | (9) | 18,900 | 1,170 | 1,460 | (9) | ||||||
| Stainless and heat-resisting | -- | (9) | 49,800 | 292 | (9) | (9) | ||||||
| Full alloy | -- | (9) | 7,410 | 256 | (9) | -- | ||||||
| Electric and tool | -- | -- | (9) | -- | (9) | (9) | ||||||
| Unspecified | -- | 32,800 | 30,600 | (10) | 703 | 7,500 | ||||||
| Total | -- | 32,800 | 107,000 | 1,720 | 2,160 | 7,500 | ||||||
| Cast irons | 4,860 | 36,600 | 33,900 | (10) | 11,600 | 22,200 | ||||||
| Superalloys | -- | (11) | (10) | 364 | -- | -- | ||||||
| Alloys, excluding superalloys and alloy steel | (11) | 540 | (10) | 48,400 | 12 | -- | -- | |||||
| Miscellaneous and unspecified | -- | -- | 1,410 | 176,000 | 13 | (11) | -- | |||||
| Grand total | 4,860 | 69,900 | 142,000 | 227,000 | 13,800 | 29,700 | ||||||
| Consumers' stocks, December 31 | 332 | 5,980 | 8,970 | 1,380 | 943 | 1,380 | ||||||
| �-- Zero. | ||||||||||||
| 1Data are rounded to no more than three significant digits; may not add to totals shown. | ||||||||||||
| 2Includes U.S. Geological Survey estimates. | ||||||||||||
| 3Typically 18% silicon content but ranges between 5% to 24% silicon content. | ||||||||||||
| 4Typically 48% silicon content but ranges between 25% to 55% silicon content; includes briquets. | ||||||||||||
| 5Typically 76% silicon content but ranges between 56% to 95% silicon content; includes briquets. | ||||||||||||
| 6Typically 98% silicon content but ranges between 96% to 99% silicon content. | ||||||||||||
| 7Typically 48% silicon content.� Primarily magnesium-ferrosilicon but also includes other silicon alloys. | ||||||||||||
| 8Typically 64% silicon content but ranges between 63% to 70% silicon content.� Does not include silicon carbide for abrasive or | ||||||||||||
| refractory uses. | ||||||||||||
| 9Included with "Steel: Unspecified," to avoid disclosing company proprietary data. | ||||||||||||
| 10Included with "Miscellaneous and unspecified," to avoid disclosing company proprietary data. | ||||||||||||
| 11Included with "Cast irons," to avoid disclosing company proprietary data. | ||||||||||||
| 12Primarily aluminum alloys. | ||||||||||||
| 13Primarily silicones, silanes, fumed silica, and other chemicals. | ||||||||||||
Source: United States Geological Survey Mineral Resources Program