| 摘要 |
A ferritic stainless steel sheet for use in raw material pipes for forming bellows pipes has excellent formability. More specifically, the ferritic stainless steel sheet contains 10 % to 25 % by mass of Cr and has a yield stress in the range of 300 to 450 MPa and the product of the yield stress and the uniform elongation properties of at least 5200 (MPa·%). Preferably, the ferritic stainless steel sheet for use in raw material pipes for forming bellows pipes has an average crystal grain size D of 35μm or less or a surface roughness of 0.40μm or less as determined by Ra.
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