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Title:
FERRITIC STAINLESS STEEL AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2023/106204
Kind Code:
A1
Abstract:
A ferritic stainless steel according to one aspect of the present invention contains at most 0.030 mass% of C, 0.01-1.5 mass% of Si, 0.01-1.00 mass% of Mn, at most 0.050 mass% of P, at most 0.005 mass% of S, 15.0-25.0 mass% of Cr, 2.0-4.0 mass% of Al, at most 1.00 mass% of Ni, 0.01-0.70 mass% of Nb, at most 0.030 mass% of N, 0.0003-0.01 mass% of B, and 0.01-0.20 mass% of REM, with the balance consisting of Fe and unavoidable impurities, wherein a dislocation density ρ derived by means of the Williamson and Hall method is at least 0.91×1014 [m−2].

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Inventors:
FUJIMURA YOSHITOMO (JP)
HAMADA TAKAHITO (JP)
HAMADA JUN-ICHI (JP)
Application Number:
PCT/JP2022/044388
Publication Date:
June 15, 2023
Filing Date:
December 01, 2022
Export Citation:
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Assignee:
NIPPON STEEL STAINLESS STEEL CORP (JP)
International Classes:
C21D9/46; C22C38/00; C22C38/54
Foreign References:
JP2020066794A2020-04-30
JP2002146484A2002-05-22
CN111471938A2020-07-31
Attorney, Agent or Firm:
HARAKENZO WORLD PATENT & TRADEMARK (JP)
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