Technology for production of austenite type clean stainless steel

Abstract

We established the refining technology for cleanliness in regard to austenite type stainless steel. But immersion nozzle clogging in continuous casting occurred by formation of spinel (MgO-Al2O3) type inclusions in strong reduction refining for cleanliness. Therefore, we estimated the conditions for formation of spinel and it was possible to improve the castability while keeping cleanliness by controlling of inclusion compositions. © 2006 ISIJ.