Improvement of the cleanliness of 16% Cr containing ferritic stainless steel in AOD processes

Author: Kim Dong Sik   Park Joo Hyun   Park Jong Hwan   Lee Sang Beom   Lee Hae Geon  

Publisher: Edp Sciences

E-ISSN: 1156-3141|101|4|291-299

ISSN: 0035-1563

Source: Revue de Métallurgie, Vol.101, Iss.4, 2010-03, pp. : 291-299

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Abstract

In order to decrease the silica content in 16% Cr ferritic stainless steel, the phases present in deoxidized inclusions were predicted by the FACT model. To decrease the amount of deoxidized inclusions and slag inclusions in the melt, the capacity of alumina absorption was compared using different top slags. In trial tests, the cleanliness of slabs was significantly improved in 16% Cr ferritic stainless steel produced by AOD processes and the number of surface defects of cold coils was also significantly reduced.

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