The paper presents an assessment of the metallic iron content from steelmaking slags in order to conserve natural resources. The determination of total iron (Fe_total) and metallic iron (Fe_metallic) in the slag samples was achieved by spectroscopic methods. The device used was a spectrometer based on X-ray fluorescence. The metallic iron content from the analysed slag samples varies according to: the composition and the quality of the charge used, the type of steel produced, the melting method used and the steelmaking method used. The results shows that, compared with the refining and deoxidizing slags, the melting slag has the highest content of total and metallic iron.