EP 4050118 A4 20240403 - STEEL PLATE FOR PRESSURE VESSEL HAVING EXCELLENT RESISTANCE TO HIGH-TEMPERATURE POST-WELDING HEAT TREATMENT, AND METHOD FOR MANUFACTURING SAME
Title (en)
STEEL PLATE FOR PRESSURE VESSEL HAVING EXCELLENT RESISTANCE TO HIGH-TEMPERATURE POST-WELDING HEAT TREATMENT, AND METHOD FOR MANUFACTURING SAME
Title (de)
STAHLPLATTE FÜR DRUCKBEHÄLTER MIT AUSGEZEICHNETER BESTÄNDIGKEIT GEGEN HOCHTEMPERATUR-WÄRMEBEHANDLUNG NACH DEM SCHWEISSEN UND VERFAHREN ZU IHRER HERSTELLUNG
Title (fr)
PLAQUE D'ACIER POUR RÉCIPIENT SOUS PRESSION AYANT UNE EXCELLENTE RÉSISTANCE À UN TRAITEMENT THERMIQUE POST-SOUDAGE À HAUTE TEMPÉRATURE, ET SON PROCÉDÉ DE FABRICATION
Publication
Application
Priority
- KR 20190131598 A 20191022
- KR 2020014343 W 20201020
Abstract (en)
[origin: EP4050118A1] 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.
IPC 8 full level
C22C 38/22 (2006.01); C21D 1/18 (2006.01); C21D 1/22 (2006.01); C21D 1/26 (2006.01); C21D 1/613 (2006.01); C21D 6/00 (2006.01); C21D 6/02 (2006.01); C21D 8/02 (2006.01); C21D 9/14 (2006.01); C21D 9/46 (2006.01); C21D 9/50 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/24 (2006.01); C22C 38/26 (2006.01)
CPC (source: CN EP KR US)
C21D 1/18 (2013.01 - EP); C21D 1/22 (2013.01 - EP); C21D 1/26 (2013.01 - EP); C21D 1/613 (2013.01 - EP); C21D 6/002 (2013.01 - EP US); C21D 6/02 (2013.01 - EP); C21D 8/0205 (2013.01 - CN EP); C21D 8/0226 (2013.01 - CN EP US); C21D 8/0247 (2013.01 - CN EP); C21D 8/0263 (2013.01 - EP KR); C21D 8/0273 (2013.01 - KR); C21D 9/14 (2013.01 - EP); C21D 9/46 (2013.01 - EP US); C21D 9/50 (2013.01 - EP); C22C 38/02 (2013.01 - CN EP US); C22C 38/04 (2013.01 - CN EP US); C22C 38/06 (2013.01 - CN EP US); C22C 38/22 (2013.01 - CN EP KR US); C22C 38/24 (2013.01 - CN EP US); C22C 38/26 (2013.01 - CN EP US); C21D 2211/002 (2013.01 - CN EP US); C21D 2211/008 (2013.01 - CN EP US)
Citation (search report)
- [IA] JP H01319629 A 19891225 - NIPPON STEEL CORP
- [A] GB 1189347 A 19700422 - NIPPON KOKAN KK [JP]
- [A] US 4855106 A 19890808 - KATSUMATA MASAAKI [JP], et al
- [A] KR 20150074952 A 20150702 - POSCO [KR]
- [A] KR 20120073448 A 20120705 - POSCO [KR]
- [A] JP S61130457 A 19860618 - KOBE STEEL LTD
- See references of WO 2021080291A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 4050118 A1 20220831; EP 4050118 A4 20240403; CN 114585760 A 20220603; CN 114585760 B 20230728; JP 2022553704 A 20221226; JP 7398559 B2 20231214; KR 102280641 B1 20210722; KR 20210047698 A 20210430; US 2024102137 A1 20240328; WO 2021080291 A1 20210429
DOCDB simple family (application)
EP 20878789 A 20201020; CN 202080073399 A 20201020; JP 2022523578 A 20201020; KR 20190131598 A 20191022; KR 2020014343 W 20201020; US 202017769095 A 20201020