Invention Grant
- Patent Title: Steel material for welded steel pipe, having excellent longitudinal uniform elongation, manufacturing method therefor, and steel pipe using same
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Application No.: US16472556Application Date: 2017-12-07
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Publication No.: US11639535B2Publication Date: 2023-05-02
- Inventor: Hwan-Gyo Jung
- Applicant: POSCO
- Applicant Address: KR Pohang-si
- Assignee: POSCO
- Current Assignee: POSCO
- Current Assignee Address: KR Pohang-si
- Agency: Morgan, Lewis & Bockius LLP
- Priority: KR10-2016-0177645 20161223
- International Application: PCT/KR2017/014286 WO 20171207
- International Announcement: WO2018/117497 WO 20180628
- Main IPC: C21D8/02
- IPC: C21D8/02 ; C21D9/08 ; C21D9/46 ; C22C38/02 ; C22C38/06 ; C22C38/12 ; C22C38/14 ; C22C38/16 ; C22C38/48
Abstract:
The present invention relates to a steel material used for a line pipe for transporting crude oil or natural gas and the like and, more specifically, to a steel material for a welded steel pipe, having excellent longitudinal uniform elongation for the pipe, a manufacturing method therefor, and a steel pipe using the same.
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