Title:
ULTRA HIGH STRENGTH STEEL SHEET HAVING EXCELLENT ELONGATION AND HOLE EXPANSION RATIO AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2023/239198
Kind Code:
A1
Abstract:
The present invention relates to an ultra high strength steel sheet and to a method for manufacturing same and, more specifically, to a steel sheet having excellent elongation and hole expansion ratio, as well as excellent strength, and to a method for manufacturing same.
Inventors:
KIM SANG-HYUN (KR)
IM YOUNG-ROC (KR)
CHOI JI-WON (KR)
IM YOUNG-ROC (KR)
CHOI JI-WON (KR)
Application Number:
PCT/KR2023/007938
Publication Date:
December 14, 2023
Filing Date:
June 09, 2023
Export Citation:
Assignee:
POSCO CO LTD (KR)
International Classes:
C22C38/04; C21D8/02; C21D9/46; C22C38/02; C22C38/06; C22C38/22; C22C38/34; C22C38/38
Domestic Patent References:
| WO2021250450A1 | 2021-12-16 |
Foreign References:
| US20190003008A1 | 2019-01-03 | |||
| KR20070061859A | 2007-06-14 | |||
| JP2014196557A | 2014-10-16 | |||
| KR20200036759A | 2020-04-07 |
Attorney, Agent or Firm:
C&S PATENT AND LAW OFFICE (KR)
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