|
| TABLE 2 | |||||||||||||
| PRODUCTION, SHIPMENTS, AND STOCKS OF SILICON ALLOYS AND METAL IN THE UNITED STATES1, 2 | |||||||||||||
| (Metric tons) | |||||||||||||
| 2005 | 2006 | ||||||||||||
| producers' | Producers' | ||||||||||||
| Silicon content | stocks, | Gross | Net | stocks, | |||||||||
| (percent) | December 31 | production3 | shipments | December 31 | |||||||||
| Material | Range | Typical | gross weight | gross weight | gross weight | gross weight | |||||||
| Ferrosilicon4 | 25-65 | 5 | 48 | 9,130 | 164,000 | 114,000 | 14,000 | ||||||
| Do. | 56-95 | 76 | 10,800 | 88,700 | 89,400 | 12,100 | |||||||
| Silicon metal, excluding semiconductor grades | 96-99 | 98 | 6,380 | W | W | W | |||||||
| W Withheld to avoid disclosing company proprietary data. | |||||||||||||
| 1Data are rounded to no more than three significant digits. | |||||||||||||
| 2Data for silvery pig iron (less than 25% silicon) withheld to avoid disclosing company proprietary data. | |||||||||||||
| 3Ferrosilicon production includes material consumed in the production of miscellaneous silicon alloys. | |||||||||||||
| 4Includes miscellaneous silicon alloys, which were listed separately prior to 1999. | |||||||||||||
| 525% to 55% for ferrosilicon; 32% to 65% for miscellaneous silicon alloys. | |||||||||||||
Source: United States Geological Survey Mineral Resources Program