A method of producing cast steel strip having low surface roughness and low porosity by casting with molten steel having a total oxygen content of at least about 100 ppm and a temperature that allows a majority of any oxide inclusions to be in a liquidus state. The steel strip produced by the method may have a per unit area density of at least about 120 oxide inclusions per square millimeter to a depth of about 2 microns from the strip surface.
This application is a continuation of pending application Ser. No. 11/000,593, filed Dec. 1, 2004 now U.S. Pat. No. 7,299,856, which is a division of application Ser. No. 10/350,777, filed Jan. 24, 2003, now abandoned. Applications Ser. Nos. 11/000,593 and 10/350,777 are hereby incorporated by reference.