Rate Of Reoxidation Of Ultra-Low Carbon Steel In Contact With Slag Of Various Compositions
- Organization:
- The Southern African Institute of Mining and Metallurgy
- Pages:
- 6
- File Size:
- 528 KB
- Publication Date:
- Jan 1, 2004
Abstract
Laboratory-scale experiments were carried out to investigate the effect of ladle slag composition on the decreasing behaviour of aluminum content in steel, i.e., reoxidation of molten steel in contact with slag, using a vertical tube furnace. The steel composition and the slag system chosen were for ultra low carbon and CaO-Al2O3-FeO-MnO-MgO based to simulate ULC steel grades. It has been observed that the reoxidation rate shows a good relationship with (T. Fe) content in slag. In case of (T. Fe) content higher than 1.5 weight per cent, the reoxidation rate increases linearly with increasing (T. Fe) content. For a given (T. Fe) content, it decreases with the increasing (CaO)/(Al2O3) ratio of the slag. However, in the case of (T. Fe) content lower than 1.5 weight percent, no particular relationships are observed between the reoxidation rate and (T. Fe) content or the (CaO)/(Al2O3) ratio of the slag. These results were used to propose for an aim a slag composition for the ULC steel grades in a steelmaking plant. Keywords: slag deoxidation, slag killing, slag composition control, IF steel, ULC steel grade
Citation
APA: (2004) Rate Of Reoxidation Of Ultra-Low Carbon Steel In Contact With Slag Of Various Compositions
MLA: Rate Of Reoxidation Of Ultra-Low Carbon Steel In Contact With Slag Of Various Compositions. The Southern African Institute of Mining and Metallurgy, 2004.