Development of Ferritic Stainless Steel with Excellent Drawability for Automotive Fuel Tanks

摘要

Lead-tin coated steel sheets are widely used in conventional automobile fuel tanks, but automakers are moving away from lead and similar substances in response to stricter environmental regulations. Although various alternatives to lead-tin coated steel sheets have been proposed, the authors have developed an innovative new ferritic stainless steel with the excellent corrosion resistance and formability required for fuel tanks and other fuel system applications. The developed steel has various advantages over coated steels, including simplification of the manufacturing process, enabling cost reduction, and high strength, allowing weight reduction in automotive parts.