Invention Grant
- Patent Title: High-strength steel sheet having excellent burring workability in low temperature range and manufacturing method therefor
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Application No.: US16467762Application Date: 2017-11-30
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Publication No.: US11466336B2Publication Date: 2022-10-11
- Inventor: Seok-Jong Seo , Sung-Il Kim , Hyun-Taek Na
- Applicant: POSCO
- Applicant Address: KR Pohang-si
- Assignee: POSCO
- Current Assignee: POSCO
- Current Assignee Address: KR Pohang-si
- Agency: Cantor Colburn LLP
- Priority: KR10-2016-0173445 20161219
- International Application: PCT/KR2017/013941 WO 20171130
- International Announcement: WO2018/117470 WO 20180628
- Main IPC: C21D9/46
- IPC: C21D9/46 ; B32B15/01 ; C21D6/00 ; C21D8/02 ; C22C38/00 ; C22C38/02 ; C22C38/04 ; C22C38/06 ; C22C38/22 ; C22C38/24 ; C22C38/26 ; C22C38/28 ; C22C38/32 ; C23C2/02 ; C23C2/06 ; C23C2/40
Abstract:
Provided is a high-strength steel sheet having excellent burring workability in a low temperature range, which is mainly used for automobile chassis parts such as members, lower arms, wheel disks, etc.; and a manufacturing method therefor.
Public/Granted literature
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