Title:
HIGH-YIELD RATIO HIGH-STRENGTH STEEL PLATE HAVING EXCELLENT IMPACT RESISTANCE AFTER COLD FORMING AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2023/090751
Kind Code:
A1
Abstract:
The present invention relates to a high-strength steel plate and a manufacturing method therefor and, more specifically, to a high-strength steel plate having excellent impact resistance after cold forming and having a high-yield ratio, and a manufacturing method therefor.
Inventors:
KIM SUNG-IL (KR)
NA HYUN-TAEK (KR)
NA HYUN-TAEK (KR)
Application Number:
PCT/KR2022/017540
Publication Date:
May 25, 2023
Filing Date:
November 09, 2022
Export Citation:
Assignee:
POSCO CO LTD (KR)
International Classes:
C22C38/38; B21C47/02; C21D8/02; C21D9/46; C22C38/00; C22C38/26; C22C38/28
Foreign References:
| KR101304859B1 | 2013-09-05 | |||
| JP2016060955A | 2016-04-25 | |||
| KR101333854B1 | 2013-11-27 | |||
| US20140205855A1 | 2014-07-24 | |||
| KR20190077829A | 2019-07-04 |
Attorney, Agent or Firm:
C&S PATENT AND LAW OFFICE (KR)
Download PDF: