Fe-Cr-Si steel sheets having excellent corrosion resistance and method for manufacturing the same

摘要

The present invention relates to Fe-Cr-Si steel sheet having an excellent corrosion resistance and high toughness and also to a method for the manufacturing the same; the amount of Cr is about 10-30 wt%, the amount of Si is about 3.5-10 wt%, the total amount of C and N is not more than about 100 ppm and the remainder consists of Fe and incidental impurities; when a cast piece of this steel is subjected to hot rolling to roll into a thickness of not more than about 3 mm, the hot rolled sheet can be subjected to cold rolling or to warm rolling without annealing.