Title:
STEEL MATERIAL
Document Type and Number:
WIPO Patent Application WO/2022/145064
Kind Code:
A1
Abstract:
Provided is a steel material which has a predetermined chemical composition and which contains inclusions containing at least one kind from among Pr, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, and Sc and one or two kinds from S and O, wherein the number density of the inclusions having a circle equivalent diameter of 0.5 to 5.0 µm is 10/mm2 or greater.
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Inventors:
ISHIKAWA KYOHEI (JP)
OGISU YASUYUKI (JP)
KIMURA KEN (JP)
UMEHARA MIYURI (JP)
YAMASAKI SHINGO (JP)
HOSHINO MANABU (JP)
OGISU YASUYUKI (JP)
KIMURA KEN (JP)
UMEHARA MIYURI (JP)
YAMASAKI SHINGO (JP)
HOSHINO MANABU (JP)
Application Number:
PCT/JP2021/014764
Publication Date:
July 07, 2022
Filing Date:
April 07, 2021
Export Citation:
Assignee:
NIPPON STEEL CORP (JP)
International Classes:
C21C7/04; C21C7/06; C22C19/03; C22C19/05; C22C38/00; C22C38/06; C22C38/60; B22D1/00
Domestic Patent References:
| WO2011142356A1 | 2011-11-17 |
Foreign References:
| JP2007077412A | 2007-03-29 | |||
| JP2007291421A | 2007-11-08 | |||
| JP2012188745A | 2012-10-04 | |||
| JP2003138334A | 2003-05-14 | |||
| JP2003129169A | 2003-05-08 | |||
| JP2014109056A | 2014-06-12 | |||
| JP2018015794A | 2018-02-01 | |||
| JP2018024908A | 2018-02-15 | |||
| JP2013019047A | 2013-01-31 | |||
| JP2005076040A | 2005-03-24 | |||
| JP2005264298A | 2005-09-29 |
Attorney, Agent or Firm:
AOKI, Atsushi et al. (JP)
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