Title:
HOT-STAMP-MOLDED ARTICLE
Document Type and Number:
WIPO Patent Application WO/2021/002422
Kind Code:
A1
Abstract:
This hot-stamp-molded article has a steel sheet having a prescribed chemical composition, and a film arranged on the steel sheet. When the film is measured by GDS to a position at a depth of 100 μm, Zntotal, which is the cumulative amount of Zn, is at least 10.0 g/m2 and less than 40.0 g/m2. When the film is measured by GDS to the position of an Al peak: the sum of Zna, which is the cumulative amount of Zn, and the cumulative amount of Mn is no more than 20.0 g/m2; the sum of the cumulative amount of Al, the cumulative amount of Si, and the cumulative amount of Cr is at least 60 mg/m2 and no more than 240 mg/m2; the value of Zntotal - Zna is at least 3.0 g/m2 and no more than 30.0 g/m2; and the arithmetic average roughness Ra is less than 1.50 μm.
Inventors:
NAKAGAWA HIROYUKI (JP)
AKUTSU HIROKI (JP)
AKUTSU HIROKI (JP)
Application Number:
PCT/JP2020/025986
Publication Date:
January 07, 2021
Filing Date:
July 02, 2020
Export Citation:
Assignee:
NIPPON STEEL CORP (JP)
International Classes:
C21D9/00; C21D1/18; C21D9/46; C22C18/00; C22C38/00; C22C38/58; C23C2/06; C23C2/40
Domestic Patent References:
| WO2013047836A1 | 2013-04-04 | |||
| WO2014024825A1 | 2014-02-13 | |||
| WO2014024825A1 | 2014-02-13 |
Foreign References:
| JP2017186663A | 2017-10-12 | |||
| JP2006037141A | 2006-02-09 | |||
| JP2003147499A | 2003-05-21 | |||
| JP2017031452A | 2017-02-09 | |||
| JP2014125672A | 2014-07-07 | |||
| JP2019123334A | 2019-07-25 | |||
| JP2003073774A | 2003-03-12 | |||
| JP2001353548A | 2001-12-25 | |||
| JP2005048254A | 2005-02-24 |
Other References:
See also references of EP 3995595A4
Attorney, Agent or Firm:
TANAI Sumio et al. (JP)
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