Invention Grant
- Patent Title: Hot press-formed part
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Application No.: US16323307Application Date: 2016-08-16
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Publication No.: US11028469B2Publication Date: 2021-06-08
- Inventor: Mutsumi Sakakibara , Natsuko Sugiura , Kunio Hayashi , Kaoru Kawasaki
- Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION
- Applicant Address: JP Tokyo
- Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
- Current Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- International Application: PCT/JP2016/073896 WO 20160816
- International Announcement: WO2018/033960 WO 20180222
- Main IPC: C22C38/58
- IPC: C22C38/58 ; B21D22/02 ; C21D1/673 ; C21D6/00 ; C22C38/00 ; C22C38/02 ; C22C38/04 ; C22C38/06 ; C22C38/08 ; C22C38/12 ; C22C38/14 ; C22C38/16 ; C22C38/44

Abstract:
A hot press-formed part according to an aspect of the present invention contains a predetermined chemical composition; in which a microstructure in a thickness ¼ portion includes, by unit vol %, tempered martensite: 20% to 90%, bainite: 5% to 75%, and residual austenite: 5% to 25%, and ferrite is limited to 10% or less; and a pole density of an orientation {211} in the thickness ¼ portion is 3.0 or higher.
Public/Granted literature
- US20200157666A1 HOT PRESS-FORMED PART Public/Granted day:2020-05-21
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