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Abstract
Production of the feedstock for steel rolling mills is shown to be a complex procedure. The problems associated with both ingot production and continuous casting are discussed and the two are compared from different aspects, e.g. quality, yield, etc. It is demonstrated that the feedstock must be examined as an integral part of the steelmaking and rolling operations, and several examples are given of the needfor optimization. The various types of steel are described, and analytical, defect, and yield control are fully discussed. Finally, recent innovations are outlined andfuture trends are considered. The paper is designed to enable those in non-ferrous industries to draw comparisons (or contrasts) with their own practices.