Invention Grant
- Patent Title: Hot-press forming part and method of manufacturing same
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Application No.: US16894886Application Date: 2020-06-08
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Publication No.: US11293075B2Publication Date: 2022-04-05
- Inventor: Koichi Nakagawa , Yoshikiyo Tamai
- Applicant: JFE STEEL CORPORATION
- Applicant Address: JP Tokyo
- Assignee: JFE STEEL CORPORATION
- Current Assignee: JFE STEEL CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Kenja IP Law PC
- Priority: JPJP2016-066708 20160329,JPJP2016-233413 20161130
- Main IPC: C21D9/46
- IPC: C21D9/46 ; C22C38/06 ; C22C38/02 ; C22C38/04 ; C21D6/00 ; C22C38/00 ; C23C2/06 ; C23C2/02 ; C22C38/12 ; C21D1/26 ; C22C38/38 ; C23C2/12 ; C22C38/60 ; C22C38/16 ; C21D8/02 ; C22C38/14 ; C23C2/40 ; C22C38/08 ; B32B15/01
Abstract:
A steel sheet for hot press comprises: a predetermined chemical composition; and a steel microstructure that includes ferrite and cementite and in which Mnθ/Mnα is 1.4 or more, where Mnα is a Mn concentration of the ferrite and Mnθ is a Mn concentration of the cementite.
Public/Granted literature
- US20200299801A1 HOT-PRESS FORMING PART AND METHOD OF MANUFACTURING SAME Public/Granted day:2020-09-24
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