Title:
HOT STAMP MOLDED BODY
Document Type and Number:
WIPO Patent Application WO/2023/199776
Kind Code:
A1
Abstract:
The present invention provides a hot stamp molded body which is provided with a steel sheet, wherein: the steel sheet has a specific chemical composition; the average B concentration in a region ranging from the depth of 5 µm from the surface of the steel sheet to the depth of 25 µm from the surface is not more than 0.700 times the B concentration at the depth of 100 µm from the surface; and the average O concentration in a region ranging from the surface of the steel sheet to the depth of 0.5 µm from the surface is 4.000% by mass or less.
Inventors:
HAGA JUN (JP)
Application Number:
PCT/JP2023/013800
Publication Date:
October 19, 2023
Filing Date:
April 03, 2023
Export Citation:
Assignee:
NIPPON STEEL CORP (JP)
International Classes:
B21D22/20; C22C38/00; C21D1/18; C21D9/00; C21D9/46; C22C38/54
Domestic Patent References:
| WO2022044510A1 | 2022-03-03 | |||
| WO2019003449A1 | 2019-01-03 |
Foreign References:
| JP2014118613A | 2014-06-30 | |||
| JP2006152427A | 2006-06-15 | |||
| JP2009228134A | 2009-10-08 |
Attorney, Agent or Firm:
MATSUNUMA Yasushi et al. (JP)
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