Title:
HOT-ROLLED STEEL FOR HYPER TUBE AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2023/121181
Kind Code:
A1
Abstract:
An aspect of the present invention may provide: a hot-rolled steel sheet that is excellent in terms of yield strength, vibration damping ratio, weldability, and weld site-low temperature toughness and thus has physical properties suitable for use in a hyper tube; and a manufacturing method therefor.
Inventors:
YANG HONG-SEOK (KR)
JO NAM-IL (KR)
CHOI JIN-JOO (KR)
KIM SEUNG-GOHN (KR)
SEO SEOK-JONG (KR)
JO NAM-IL (KR)
CHOI JIN-JOO (KR)
KIM SEUNG-GOHN (KR)
SEO SEOK-JONG (KR)
Application Number:
PCT/KR2022/020722
Publication Date:
June 29, 2023
Filing Date:
December 19, 2022
Export Citation:
Assignee:
POSCO CO LTD (KR)
International Classes:
C22C38/04; C21D8/02; C22C38/02; C22C38/12; C22C38/14; C22C38/34; C22C38/38
Domestic Patent References:
| WO2012002566A1 | 2012-01-05 |
Foreign References:
| KR20140044931A | 2014-04-15 | |||
| JP2021031701A | 2021-03-01 | |||
| JP2007291511A | 2007-11-08 | |||
| KR20210078022A | 2021-06-28 |
Attorney, Agent or Firm:
C&S PATENT AND LAW OFFICE (KR)
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