Patents Assigned to SSAB Svenskt Stal Aktiebolag
  • Patent number: 4325751
    Abstract: A steel strip displaying high strength and formability properties is fabricated by coiling a steel strip which has been previously processed through a hot-strip mill from an initial steel having a very low amount of alloying compounds and having a temperature of between 750.degree. and 900.degree. C., the coiled steel strip being maintained at a temperature of between 800.degree. and 650.degree. C. for a period of at least one minute, and thereafter cooled to a temperature of below 450.degree. C., the cooling being accomplished at a rate exceeding 10.degree. C./second.
    Type: Grant
    Filed: May 12, 1980
    Date of Patent: April 20, 1982
    Assignee: SSAB Svenskt Stal Aktiebolag
    Inventor: Erik A. A. Josefsson