Title:
ULTRA HIGH STRENGTH STEEL SHEET HAVING HIGH YIELD RATIO AND EXCELLENT BENDABILITY AND METHOD OF MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2022/265453
Kind Code:
A1
Abstract:
The present invention relates to an ultra high strength steel sheet having a high yield ratio, and a method for manufacturing same and, more specifically, to a steel sheet having ultra high strength, a high yield ratio and excellent bendability, and a method for manufacturing same.
Inventors:
KIM SANG-HYUN (KR)
KOO MIN-SEO (KR)
KIM EUN-YOUNG (KR)
KOO MIN-SEO (KR)
KIM EUN-YOUNG (KR)
Application Number:
PCT/KR2022/008630
Publication Date:
December 22, 2022
Filing Date:
June 17, 2022
Export Citation:
Assignee:
POSCO CO LTD (KR)
International Classes:
C22C38/04; B21C47/02; C21D8/02; C21D9/46; C22C38/02; C22C38/06; C22C38/14; C22C38/22; C22C38/32
Foreign References:
| KR20210019440A | 2021-02-22 | |||
| JP6874919B1 | 2021-05-19 | |||
| US20200181729A1 | 2020-06-11 | |||
| JP2009203550A | 2009-09-10 | |||
| JP2009242816A | 2009-10-22 |
Attorney, Agent or Firm:
C&S PATENT AND LAW OFFICE (KR)
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