Table 3.--U.S. consumption and industry stocks of manganese ferroalloys and metal1/ (Metric tons gross weight unless otherwise specified) ---------------------------------------------------------------------------------------------- 1969 1970 -------------------------------- -------------------------------- FeMn SiMn Mn FeMn SiMn Mn ---------------------------------------------------------------------------------------------- Consumption, by end use: Total-------------------- 971,633 138,247 25,413 907,739 125,645 22,210 Of which: Total steel---------- 902,738 123,643 16,417 860,497 111,645 12,234 Carbon steel2/----- 770,222 87,661 6,598 730,493 79,692 4,388 Other3/-------------- 68,895 14,604 8,996 47,243 14,000 9,975 Unit consumption in steelmaking4/----------- 5.70 .65 .13 5.75 .65 .10 Stocks, Dec. 31: Consumers and producers-- 248,707 30,505 7,768 252,094 36,531 8,321 ----------------------------------------------------------------- 1971 1972 -------------------------------- -------------------------------- FeMn SiMn Mn FeMn SiMn Mn ----------------------------------------------------------------- Consumption, by end use: Total-------------------- 815,569 111,505 24,968 878,126 112,720 27,169 Of which: Total steel---------- 766,939 100,659 13,613 854,238 102,973 14,366 Carbon steel2/----- 637,287 67,319 4,863 688,822 64,471 6,421 Other3/-------------- 48,631 10,846 11,355 23,888 9,748 12,803 Unit consumption in steelmaking4/----------- 5.60 .65 .13 5.50 .60 .13 Stocks, Dec. 31: Consumers and producers-- 275,933 55,991 7,355 366,962 49,010 6,082 ----------------------------------------------------------------- 1973 1974 -------------------------------- -------------------------------- FeMn SiMn Mn FeMn SiMn Mn ----------------------------------------------------------------- Consumption, by end use: Total-------------------- 1,012,965 144,260 31,972 1,011,870 160,722 31,523 Of which: Total steel---------- 985,109 132,659 17,124 986,272 142,893 16,196 Carbon steel2/----- 803,441 85,847 7,378 768,908 91,399 7,400 Other3/-------------- 27,855 11,601 14,848 25,597 17,830 15,327 Unit consumption in steelmaking4/----------- 5.55 .65 .13 5.75 .70 .13 Stocks, Dec. 31: Consumers and producers-- 232,631 39,002 4,350 294,481 54,984 5,460 ----------------------------------------------------------------- 1975 1976 -------------------------------- -------------------------------- FeMn SiMn Mn FeMn SiMn Mn ----------------------------------------------------------------- Consumption, by end use: Total-------------------- 799,708 145,657 20,329 813,541 140,185 25,515 Of which: Total steel---------- 775,926 129,942 11,120 790,223 121,171 13,851 Carbon steel2/----- 611,109 88,255 5,902 640,336 79,731 6,564 Other3/-------------- 23,782 15,714 9,209 23,317 19,015 11,665 Unit consumption in steelmaking4/----------- 5.70 .80 .10 5.30 .70 .10 Stocks, Dec. 31: Consumers and producers-- 359,288 62,188 10,272 274,404 56,362 10,472 ----------------------------- See footnotes at end of table. Table 3.--U.S. consumption and industry stocks of manganese ferroalloys and metal--Continued (Metric tons gross weight unless otherwise specified) ---------------------------------------------------------------------------------------------- 1977 1978 -------------------------------- -------------------------------- FeMn SiMn Mn FeMn SiMn Mn ---------------------------------------------------------------------------------------------- Consumption, by end use: Total-------------------- 804,037 134,045 24,470 894,142 149,058 25,613 Of which: Total steel---------- 780,759 114,725 12,172 868,098 130,284 12,574 Carbon steel2/----- 623,593 73,748 7,191 701,966 85,678 7,477 Other3/-------------- 23,278 19,319 12,299 26,044 18,773 13,039 Unit consumption in steelmaking4/----------- 5.30 .65 .10 5.45 .70 .10 Stocks, Dec. 31: Consumers and producers-- 268,948 45,944 8,154 215,044 37,551 6,113 ----------------------------------------------------------------- 1979 1980 -------------------------------- -------------------------------- FeMn SiMn Mn FeMn SiMn Mn ----------------------------------------------------------------- Consumption, by end use: Total-------------------- 885,850 155,946 25,507 715,838 141,355 22,763 Of which: Total steel---------- 862,759 137,444 11,816 695,145 126,979 9,160 Carbon steel2/----- 679,684 86,355 6,727 540,299 83,639 5,176 Other3/-------------- 23,091 18,502 13,691 20,693 14,376 13,603 Unit consumption in steelmaking4/----------- 5.50 .75 .10 5.40 .80 .10 Stocks, Dec. 31: Consumers and producers-- 204,411 35,925 5,901 186,945 48,480 6,424 ----------------------------------------------------------------- 1981 1982 -------------------------------- -------------------------------- FeMn SiMn Mn FeMn SiMn Mn ----------------------------------------------------------------- Consumption, by end use: Total-------------------- 744,727 141,286 21,573 398,433 95,840 15,550 Of which: Total steel---------- 725,960 129,430 10,695 381,058 86,953 7,630 Carbon steel2/----- 563,444 86,213 5,859 298,842 60,419 4,613 Other3/-------------- 18,767 11,856 10,878 17,375 8,887 7,920 Unit consumption in steelmaking4/----------- 5.15 .75 .10 4.45 .85 .10 Stocks, Dec. 31: Consumers and producers-- 182,869 51,086 7,342 220,385 32,686 6,727 ----------------------------------------------------------------- 1983 1984 -------------------------------- -------------------------------- FeMn SiMn Mn FeMn SiMn Mn ----------------------------------------------------------------- Consumption, by end use: Total-------------------- 404,877 75,653 16,557 446,483 93,308 25,305 Of which: Total steel---------- 386,527 67,091 8,491 428,391 87,939 7,939 Carbon steel2/----- 304,296 45,540 5,122 346,146 65,003 4,254 Other3/-------------- 18,350 8,562 8,066 18,092 5,369 17,366 Unit consumption in steelmaking4/----------- 4.35 .85 .10 3.90 .60 .10 Stocks, Dec. 31: Consumers and producers-- 177,179 18,791 3,522 144,659 11,285 3,945 ----------------------------- See footnotes at end of table. Table 3.--U.S. consumption and industry stocks of manganese ferroalloys and metal--Continued (Metric tons gross weight unless otherwise specified) ---------------------------------------------------------------------------------------------- 1985 1986 -------------------------------- -------------------------------- FeMn SiMn Mn FeMn SiMn Mn ---------------------------------------------------------------------------------------------- Consumption, by end use: Total-------------------- 422,333 95,053 22,231 340,966 93,231 21,899 Of which: Total steel---------- 399,039 90,288 5,572 327,986 88,322 4,816 Carbon steel2/----- 324,618 69,257 2,634 259,563 63,153 2,266 Other3/-------------- 23,294 4,765 16,659 12,980 4,910 17,083 Unit consumption in steelmaking4/----------- 3.85 .75 .05 3.45 .80 .05 Stocks, Dec. 31: Consumers and producers-- 90,595 12,888 4,782 84,189 11,819 2,904 ----------------------------------------------------------------- 1987 1988 -------------------------------- -------------------------------- FeMn SiMn Mn FeMn SiMn Mn ----------------------------------------------------------------- Consumption, by end use: Total-------------------- 371,382 103,914 23,196 424,288 107,869 21,760 Of which: Total steel---------- 359,070 98,714 5,902 408,780 104,640 3,787 Carbon steel2/----- 281,188 74,219 2,769 320,366 77,641 1,017 Other3/-------------- 12,312 5,200 17,294 15,507 3,229 17,973 Unit consumption in steelmaking4/----------- 3.50 .80 .05 3.50 .75 .05 Stocks, Dec. 31: Consumers and producers-- 43,602 12,480 2,706 82,381 16,836 2,728 ----------------------------------------------------------------- 1989 1990 -------------------------------- -------------------------------- FeMn SiMn Mn FeMn SiMn Mn ----------------------------------------------------------------- Consumption, by end use: Total-------------------- 399,078 94,663 21,265 413,091 97,931 23,064 Of which: Total steel---------- 380,879 90,556 3,711 393,870 93,849 5,159 Carbon steel2/----- 298,241 65,031 857 311,322 67,241 W Other3/-------------- 18,199 4,107 17,554 19,221 4,081 17,905 Unit consumption in steelmaking4/----------- 3.35 .65 .05 3.40 .70 .05 Stocks, Dec. 31: Consumers and producers-- 68,117 9,428 3,707 55,829 7,555 3,454 ---------------------------------------------------------------------------------------------- W Withheld to avoid disclosing company proprietary data. 1/FeMn, ferromanganese, all grades; SiMn, silicomanganese; Mn, manganese metal. Data not listed for spiegeleisen, reported annual consumption of which was about 18,000 metric tons in 1969-74, averaged 5,800 metric tons in 1975-78, and was negligible thereafter. 2/Included in "Total steel." 3/Mostly in cast irons and miscellaneous for FeMn and SiMn; mostly in aluminum alloys for Mn. 4/Kilograms of manganese per metric ton of raw steel; multiply by 2.0 to convert to pounds of manganese per short ton of raw steel. Source: U.S. Bureau of Mines, (Manganese Minerals Yearbooks 1969-90).