A STUDY ON THE STEEL SCRAP RESOURCES FOR STEEL INDUSTRY
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The significance of more use of steel scrap and less use of iron ore by steel industry was emphasized. For the life cycle of steel products an iron-flow diagram with time factor has been worked out. The steel scrap index, S, for defining the degree of availability of steel scrap for steel industry, was formulated, and the relationship between S and the variation of annual output of steel products and some other factors has been studied. The iron ore index, R, for defining the degree of dependence of steel industry on iron ore, was formulated, and the relationship between R and the variation of annual output of steel products and some other factors has also been studied. The problems related to steel scrap resources for the steel industry in a country or a region could be analyzed in detail according to the approach and method mentioned in the paper.