Abstract

A technology – the first of its kind in oxygen converter steelmaking – has been developed to make steel from low-silicon, low-manganese pig iron in 350-ton converters. Results are presented from a study of the dependence of the chemical composition and temperature of the pig iron on its manganese content. The first study ever is made of the processes of decarbonization, desulfurization, and dephosphorization in a converter with the use of low-silicon, low-manganese pig having a high content of phosphorus. Multiple regression equations are obtained to predict the temperature and chemical composition of the metal at the sampling point.

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