Abstract
The thermophysical properties of steel, as determined by experimental research or when calculated with thermodynamic databases, are key input parameters for building a numerical model of the continuous casting process. Based on the chemical composition of a steel grade and the algorithms implemented in the thermodynamic databases, a number of material properties, i.e. enthalpy, thermal conductivity, density, viscosity, solidus and liquidus temperatures, may be determined. The study presents the influence of enthalpy and specific heat values on the temperature distribution that was calculated by using the numerical model of the steel continuous casting process. This model was developed based on the actual dimensions of the slab continuous casting machine in the ArcelorMittal Poland Unit in Krakow. The S235 steel grade – along with the strand dimensions of 220 x 1100 mm - were selected for the tests. The calculated temperature distribution of a solidifying strand of continuously cast steel was verified on the basis of a database. This database was created during measurements conducted in industrial conditions.
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