Title:
HIGH-STRENGTH AND THICK STEEL SHEET HAVING EXCELLENT HOLE EXPANDABILITY AND DUCTILITY, AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2023/048467
Kind Code:
A1
Abstract:
The present invention relates to steel suitable as a material for automobiles and, particularly, to a high-strength and thick steel sheet having excellent hole expandability and ductility, and a manufacturing method therefor.
Inventors:
CHO KYOUNG-RAE (KR)
KIM SUNG-KYU (KR)
PARK JUN-HO (KR)
HAN SANG-HO (KR)
KIM JEONG-HUN (KR)
KIM SUNG-KYU (KR)
PARK JUN-HO (KR)
HAN SANG-HO (KR)
KIM JEONG-HUN (KR)
Application Number:
PCT/KR2022/014116
Publication Date:
March 30, 2023
Filing Date:
September 21, 2022
Export Citation:
Assignee:
POSCO CO LTD (KR)
International Classes:
C22C38/38; B21C47/02; C21D8/02; C21D9/46; C22C38/00; C22C38/26; C22C38/28; C22C38/32
Foreign References:
| KR20160078570A | 2016-07-05 | |||
| KR20140014140A | 2014-02-05 | |||
| JP5533000B2 | 2014-06-25 | |||
| KR20090122346A | 2009-11-27 | |||
| KR20160096611A | 2016-08-16 | |||
| KR20210095156A | 2021-07-30 |
Attorney, Agent or Firm:
C&S PATENT AND LAW OFFICE (KR)
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