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Title:
STEEL SHEET AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2023/032339
Kind Code:
A1
Abstract:
Disclosed is a steel sheet having both excellent workability and flexural strength. This steel sheet has a predetermined chemical composition and a predetermined steel composition. The difference between the number density of precipitates in tempered martensite of a first face on the front side of the steel sheet and the number density of precipitates in tempered martensite of a second face on the back side of the steel sheet is within 10.0%. The yield strength is 600 MPa or more.

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Inventors:
TAKEDA KENGO (JP)
NAKANO KATSUYA (JP)
Application Number:
PCT/JP2022/016848
Publication Date:
March 09, 2023
Filing Date:
March 31, 2022
Export Citation:
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Assignee:
NIPPON STEEL CORP (JP)
International Classes:
C21D9/46; C22C38/00; C22C38/60
Domestic Patent References:
WO2020158065A12020-08-06
WO2018105003A12018-06-14
WO2011065591A12011-06-03
Foreign References:
JP2021025094A2021-02-22
Attorney, Agent or Firm:
AOKI, Atsushi et al. (JP)
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