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Title:
STEEL SHEET FOR HOT PRESSING AND PRODUCTION METHOD THEREFOR, AND HOT PRESS MEMBER AND PRODUCTION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2017/168948
Kind Code:
A1
Abstract:
Provided is a steel sheet for hot pressing, which has a prescribed component composition, and which is configured to have a steel structure that includes ferrite and cementite such that Mnθ/Mnα is not lower than 1.4, when the Mn concentrations of the ferrite and the cementite are defined as Mnα and Mnθ, respectively.

Inventors:
NAKAGAWA Koichi (JFE STEEL CORPORATION 2-3, Uchisaiwai-cho 2-chom, Chiyoda-ku Tokyo 11, 〒1000011, JP)
TAMAI Yoshikiyo (JFE STEEL CORPORATION 2-3, Uchisaiwai-cho 2-chom, Chiyoda-ku Tokyo 11, 〒1000011, JP)
Application Number:
JP2017/001110
Publication Date:
October 05, 2017
Filing Date:
January 13, 2017
Export Citation:
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Assignee:
JFE STEEL CORPORATION (2-3 Uchisaiwai-cho 2-chome, Chiyoda-ku Tokyo, 11, 〒1000011, JP)
International Classes:
C22C38/06; C21D1/18; C21D9/00; C21D9/46; C22C38/58; C23C2/06; C23C2/12
Domestic Patent References:
WO2013132816A12013-09-12
WO2016063467A12016-04-28
Foreign References:
JP2004211147A2004-07-29
JP2014019941A2014-02-03
JP2015503023A2015-01-29
Other References:
See also references of EP 3438316A4
Attorney, Agent or Firm:
SUGIMURA Kenji (36F Kasumigaseki Common Gate West, 3-2-1 Kasumigasek, Chiyoda-ku Tokyo 13, 〒1000013, JP)
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