Title:
STEEL PLATE FOR PRESSURE VESSEL HAVING EXCELLENT RESISTANCE TO HIGH-TEMPERATURE POST-WELDING HEAT TREATMENT, AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2021/080291
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a steel plate for a pressure vessel having excellent resistance to high-temperature post-welding heat treatment, in which deterioration of strength and toughness is minimized even when a long-term post welding heat treatment (PWHT) is applied at high temperature, and a method for manufacturing same.
Inventors:
HONG SOON-TAIK (KR)
Application Number:
PCT/KR2020/014343
Publication Date:
April 29, 2021
Filing Date:
October 20, 2020
Export Citation:
Assignee:
POSCO (KR)
International Classes:
C22C38/22; C21D8/02
Domestic Patent References:
| WO2008093897A1 | 2008-08-07 |
Foreign References:
| JPH01319629A | 1989-12-25 | |||
| KR101978074B1 | 2019-05-13 | |||
| JP2005179720A | 2005-07-07 | |||
| JP2006206942A | 2006-08-10 | |||
| KR20120073448A | 2012-07-05 |
Other References:
See also references of EP 4050118A4
Attorney, Agent or Firm:
C&S PATENT AND LAW OFFICE (KR)
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