Invention Grant
- Patent Title: Ferritic stainless steel sheet for use in raw material pipe for forming bellows pipe
- Patent Title (中): 铁素体不锈钢板用于原料管用于形成波纹管
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Application No.: US11919083Application Date: 2006-05-29
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Publication No.: US07985372B2Publication Date: 2011-07-26
- Inventor: Yoshihiro Ozaki , Yasushi Kato , Takaaki Iguchi
- Applicant: Yoshihiro Ozaki , Yasushi Kato , Takaaki Iguchi
- Applicant Address: JP
- Assignee: JFE Steel Corporation
- Current Assignee: JFE Steel Corporation
- Current Assignee Address: JP
- Agency: DLA Piper LLP (US)
- Priority: JP2005-169523 20050609; JP2005-169524 20050609; JP2005-169525 20050609
- International Application: PCT/JP2006/311156 WO 20060529
- International Announcement: WO2006/132163 WO 20061214
- Main IPC: C22C38/28
- IPC: C22C38/28 ; C22C38/26

Abstract:
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 35 μm or less or a surface roughness of 0.40 μm or less as determined by Ra.
Public/Granted literature
- US20090068490A1 Ferritic stainless steel sheet for use in raw material pipe for forming bellows pipe Public/Granted day:2009-03-12
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