TABLE 11.-Unmanufactured zinc: United States production, stocks, consumption, imports, exports, and prices, by months, 1948–53 TABLE 11.-Unmanufactured zinc: United States production, stocks, consumption, imports, exports, and prices, by months, 1948-53-Continued 1 Recoverable zinc content of ores and concentrates. Monthly data on zinc recovered from old scrap are not available; data by years are as follows: 74,190 tons in 1948; 51,651 tons in 1949; 74,097 tons in 1950; 68,174 tons in 1951; and an estimated 66,000 tons in 1952. 2 Data as reported by the American Zinc Institute. Represents gross weight of zinc blocks, pigs, and slabs at primary and secondary smelters and refineries. 3 Data cover total stocks of slab zine. Data prior to June 1951 not strictly comparable with subsequent data because of an increase in the number of consumers canvassed by the Bureau of Mines beginning with June 1951. Slab zinc consumed for metal products, pigments, and chemicals; monthly data based on monthly reports to the Bureau of Mines plus an estimate of the monthly consumption by consumers who reported only on an annual basis. In addition to zinc consumed in the form of slabs, substantial quantities are consumed in form of ores for the manufacture of pigments and salts. Such data are not available on a monthly basis; the zinc content of pigments and salts manufactured from ores amounted to 132,649 tons in 1948; 88,142 tons in 1949; 134,434 tons in 1950; 133,845 tons in 1951; and an estimated 115,000 tons in 1952. Data cover the zinc content of zinc-bearing ores and concentrates and the gross weight of zinc blocks, pigs, slabs, zinc scrap, dross and skimmings. Data for 1951, 1952, and 1953 are preliminary. Data cover the zinc content of zinc ores, concentrates, scrap, dross, and skimmings and the gross weight of zinc bars, pigs, and slabs. Data for 1951 and 1952 are preliminary. 7 Average price of Prime Western zinc at East St. Louis as published by the Engineering and Mining Journal's Metal and Mineral Markets. Preliminary. NOTE. Data on consumption of zinc shown in this table represent reported consumption of slab zinc estimated to cover 96 percent of total slab zinc consumption. Total consumption of zinc (in the form of ores and salts as well as slab zinc) is shown in table 2. Apparent consumption, such as might be calculated from data in table 2 on production, imports, and exports, and changes in producers' and consumers' stocks of slab zinc (but not Government stocks, which are confidential) shown in table 11, would differ from reported consumption data partly because such calculated data would include withdrawals for the strategic stockpile as well as zinc actually consumed. Apparent consumption, calculated as indicated above, would also differ from reported consumption because the data on private stocks (in this table) are incomplete since they exclude stocks of ores and of all materials in transit, because computed data would be based in part on total zinc content rather than recoverable zinc content of some imports, and because production data exclude zinc recovered from new scrap (sometimes referred to as "runaround" scrap) whereas reported consumption data include data on consumption of zine recovered from new scrap. Source: Production, stocks, and consumption from official statistics of the U. S. Bureau of Mines, except as noted; imports and exports from official statistics of the U. S. Department of Commerce. TABLE 12.-Lead- and zinc-containing materials and articles: United States production, imports, and exports, by kinds of materials, 1952 1 Data on quantity of production comprise recoverable lead content of mine output plus estimated quantity of lead recovered from old scrap; value of production estimated approximately by multiplying the quantity produced by the E&MJ average market price of common lead at New York. Data on imports and exports cover lead-bearing ores, lead pigs and bars, lead scrap, type metal, and antimonial lead; quantity data on imports represent lead content; quantity data on exports represent lead content of lead-bearing ores exported but gross weight of the other items exported. Production data are for the year 1951; 1952 production data not yet available. Not separately classified; exports, if any, are probably negligible. Includes leaded zinc oxide. 7 Estimated. Not available. Lead content; gross weight was 339 tons. 10 Babbitt metal only; solder not separately reported in 1952. 11 Data on quantity of production comprise recoverable zinc content of mine output plus estimated quantity of zinc recovered from old scrap; value of production estimated approximately by multiplying the quantity produced by the E&MJ average market price of Prime Western zinc, f. o. b. East St. Louis. Dats on imports and exports cover zinc-bearing ores, zinc blocks, pigs, bars and zine scrap (including old and worn-out zinc and zinc dross and skimmings); quantity data on imports represent the zinc content of zincbearing ores and the gross weight of zinc blocks, pigs, bars, and zinc scrap, dross and skimmings; quantity data on exports represent zinc content of zinc ores and concentrates and scrap zinc, and the gross weight of zinc blocks, pigs, and slabs. 12 Uncoated zinc sheets and zinc sheets coated or plated with nickel or other metal. 1 Zinc rolled in sheet, plates, and strip. Source: Production data from official statistics of the U. S. Bureau of Mines, except as noted; imports and exports from official statistics of the U. S. Department of Commerce. TABLE 13.-Lead pigments, zinc oxide, and lithopone: United States production, imports, and exports, in specified years, 1937-52 1 Data are shipments or sales by domestic manufacturers. Includes an estimate for shipments of sublimed lead in 1946 and in 1948-52. Includes lead-free zinc oxide, leaded zinc oxide, and normal lithopone content of high-strength lithopone plus normal lithopone sold as such. Does not include zinc oxide containing more than 25 percent lead, which is entered under paragraph 66 of the Tariff Act of 1930. Preliminary. Not available. Source: Production, official statistics of the U. S. Bureau of Mines; imports and exports, official statistic of the U. S. Department of Commerce. |