Trends in consumption, production, and imports of manganese, silicon, and chromium ferroalloys in the United States during 1960- 76 are presented by the federal Bureau of Mines. Overall imports of these major ferroalloys have increased faster than consumption, which has adversely affected domestic production. Stimulated by iron and foundry end uses, silicon ferroalloys have exhibited the strongest growth in both consumption and production. For chromium ferroalloys, consumption has risen nearly as rapidly as for silicon ferroalloys, with demand patterns clearly reflecting changes in stainless steelmaking technology. Consumption of manganese ferroalloys overall has been relatively static; production of ferromanganese has dropped markedly as blast furnace production has declined. U.S. consumption of manganese and silicon ferroalloys in steelmaking is compared with that in Brazil, Japan, and the United Kingdom. Technological developments within the domestic industry and the industry's outlook for the future are discussed briefly.
Proc. Ilafa-ferroalloys Cong., Mexico; Ferroaleaciones '78, Inst. Latinoam. ...Acero, Pp 121-32