Title:
ULTRA-HIGH STRENGTH COLD-ROLLED STEEL SHEET HAVING EXCELLENT ELONGATION AND MANUFACTURING METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2023/096453
Kind Code:
A1
Abstract:
The present invention relates to an ultra-high strength cold-rolled steel sheet and a manufacturing method thereof and, more specifically, to a cold-rolled steel sheet and a manufacturing method thereof, wherein the cold-rolled steel sheet has a tensile strength of 1.5 GPa and exhibits an excellent elongation rate, and as such, can be suitably used for cold stamping.
Inventors:
KIM EUN-YOUNG (KR)
KOO MIN-SEO (KR)
KOO MIN-SEO (KR)
Application Number:
PCT/KR2022/019037
Publication Date:
June 01, 2023
Filing Date:
November 29, 2022
Export Citation:
Assignee:
POSCO CO LTD (KR)
International Classes:
C22C38/04; C21D8/02; C21D9/46; C22C38/00; C22C38/02; C22C38/06; C22C38/22; C22C38/38
Domestic Patent References:
| WO2016147549A1 | 2016-09-22 |
Foreign References:
| KR20210036966A | 2021-04-05 | |||
| KR20210132856A | 2021-11-05 | |||
| KR20170113858A | 2017-10-13 | |||
| KR20180021161A | 2018-02-28 |
Attorney, Agent or Firm:
C&S PATENT AND LAW OFFICE (KR)
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