Nippon Steel Corporation

Koji Kishida

Osamu Akisue

Manabu Takahashi

Tohru Yoshida

Matsuo Usuda

A thin ferritic steel sheet having an excellent shape fixability capable of being used for bending is provided, comprising: at least 0.027 to less than 0.05 mass % of C, 0.01 to 1.0 mass % of Si, 0.01 to 2.0 mass % of Mn, not more than 0.15 mass % of P, not more than 0.03 mass % of S, 0.01 to 0.1 mass % of Al, not more than 0.01 mass % of N, not more than 0.007 mass % of O, the balance being Fe and inevitable impurities, wherein a ratio of presence of &lcub;100&rcub; planes parallel with a face of the steel sheet to &lcub;111&rcub; planes is not less than 1.0, and TS&times;El, which represents a product of maximum tensile strength (TS) multiplied by rupture elongation (El) of the steel sheet, is at least 13,860 MPA %.

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Himeji, Japan

Koji Kishida