Title:
FERRITE-BASED STAINLESS STEEL PLATE, STEEL PIPE, AND PRODUCTION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2016/068139
Kind Code:
A1
Abstract:
Provided are a ferrite-based stainless steel plate and steel pipe that serve as raw material for heat-resistant components requiring particularly excellent molding properties, same being provided as a result of the ferrite-based stainless steel containing 10%-20% by mass Cr, a prescribed amount of C, Si, Mn, P, S, and Al, and a prescribed amount of at least one type of Ti and Nb, said ferrite-based stainless steel having, in the vicinity of the plate thickness center section, a {111} strength of at least 5 and a {411} strength of less than 3. In addition, as a result of having similar components and having a {111} <110> orientation strength of at least 4.0 and a {311} <136> orientation strength of less than 3.0, a ferrite-based stainless steel plate and steel pipe can be obtained that have excellent molding properties and whereby rm ≥ -1.0t + 3.0 when the plate thickness is t (mm) and the average r value is rm.
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Inventors:
HAMADA JUNICHI (JP)
NISHIMURA KOU (JP)
ARAKI JUN (JP)
FUKUDA NOZOMU (JP)
TANOUE TOSHIO (JP)
NISHIMURA KOU (JP)
ARAKI JUN (JP)
FUKUDA NOZOMU (JP)
TANOUE TOSHIO (JP)
Application Number:
PCT/JP2015/080268
Publication Date:
May 06, 2016
Filing Date:
October 27, 2015
Export Citation:
Assignee:
NIPPON STEEL & SUMIKIN SST (JP)
International Classes:
C22C38/00; C21D9/46; C22C38/28; C22C38/60
Foreign References:
| JP2006193771A | 2006-07-27 | |||
| JP2005163139A | 2005-06-23 | |||
| JP2010248620A | 2010-11-04 | |||
| JP2006089814A | 2006-04-06 | |||
| JP2008208412A | 2008-09-11 | |||
| EP2557194A1 | 2013-02-13 |
Attorney, Agent or Firm:
KINOSHITA & ASSOCIATES (JP)
Bottom intellectual property office of patent business corporation Tatsuyuki (JP)
Bottom intellectual property office of patent business corporation Tatsuyuki (JP)
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