Production of corrosion-resistant 09ГСФ steel

Abstract

New production technology for low-alloy 09ГСФ steel for rolled sheet resistant to hydrogen-sulfide corrosion is described. The quantity of modifier introduced determines the impurity content of the metal after deep refining to remove sulfur and nonmetallic inclusions, the types of inclusions formed, and hence the resistance of the metal to corrosion cracking. Row inclusions formed in the sheet after nonoptimal ladle treatment of the steel are mainly responsible for the impairment of corrosion resistance.