Title:
STEEL PLATE
Document Type and Number:
WIPO Patent Application WO/2023/053829
Kind Code:
A1
Abstract:
Provided is a steel plate having a prescribed chemical composition satisfying X ≥ 0.0003 and 1.80 x [P] – X < 0.010 (in these expressions: X = 0.40 [Pr] + 0.37 [Sm] + 0.37 [Eu] + 0.36 [Gd] + 0.35 [Tb] + 0.34 [Dy] + 0.34 [Ho] + 0.33 [Er] + 0.33 [Tm] + 0.32 [Yb] + 0.32 [Lu] + 1.24 [Sc] – 2.33 [O] – 3.99 [N] – 1.74 [S]; and [Pr], [Sm], [Eu], [Gd], [Tb], [Dy], [Ho], [Er], [Tm], [Yb], [Lu], [Sc], [O], [N], [S], and [P] represent the content [mass%] of each element), having an effective crystal particle diameter of 10.0 μm or lower, and having a plate thickness of 6.0 mm or lower.
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Inventors:
NAKADA KOHEI (JP)
ISHIKAWA KYOHEI (JP)
TOYODA TAKESHI (JP)
ISHIKAWA KYOHEI (JP)
TOYODA TAKESHI (JP)
Application Number:
PCT/JP2022/032671
Publication Date:
April 06, 2023
Filing Date:
August 30, 2022
Export Citation:
Assignee:
NIPPON STEEL CORP (JP)
International Classes:
C22C38/00; C22C38/58; C21D9/46
Domestic Patent References:
| WO2022145063A1 | 2022-07-07 | |||
| WO2022145066A1 | 2022-07-07 |
Foreign References:
| JP2016003385A | 2016-01-12 | |||
| JP2015190058A | 2015-11-02 | |||
| JP2010100923A | 2010-05-06 |
Attorney, Agent or Firm:
AOKI, Atsushi et al. (JP)
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