EP 3561106 A1 20191030 - HEAVY-WALLED STEEL PLATE HAVING 450MPA-GRADE TENSILE STRENGTH AND EXCELLENT RESISTANCE TO HYDROGEN INDUCED CRACKING AND METHOD FOR MANUFACTURING SAME
Title (en)
HEAVY-WALLED STEEL PLATE HAVING 450MPA-GRADE TENSILE STRENGTH AND EXCELLENT RESISTANCE TO HYDROGEN INDUCED CRACKING AND METHOD FOR MANUFACTURING SAME
Title (de)
DICKWANDIGE STAHLPLATTE MIT 450MPA-GRAD-ZUGFESTIGKEIT UND HERVORRAGENDER BESTÄNDIGKEIT GEGEN WASSERSTOFFINDUZIERTE RISSBILDUNG SOWIE VERFAHREN ZUR HERSTELLUNG DAVON
Title (fr)
MATÉRIAU D'ACIER À PAROI ÉPAISSE DOTÉ D'UNE RÉSISTANCE À LA TRACTION DE 450 MPA ET D'UNE EXCELLENTE RÉSISTANCE À LA FISSURATION INDUITE PAR HYDROGÈNE, ET PROCÉDÉ DE FABRICATION D'UN TEL MATÉRIAU D'ACIER À PAROI ÉPAISSE
Publication
Application
Priority
- KR 20160176896 A 20161222
- KR 2017013550 W 20171124
Abstract (en)
The present disclosure relates to a heavy-wall steel plate having 450MPa-grade tensile strength and excellent resistance to hydrogen induced cracking, and a method for manufacturing the same. The heavy-wall steel plate includes, by weight, carbon (C): 0.03% to 0.06%, silicon (Si): 0.2% to 0.4%, manganese (Mn): 1.0% to 1.6%, phosphorus (P): 0.03% or less, sulfur (S): 0.003% or less, aluminum (Al): 0.06% or less, nitrogen (N): 0.01% or less, copper (Cu): 0.05% to 0.4%, nickel (Ni): 0.05% to 0.5%, calcium (Ca): 0.0005% to 0.003%, a balance of iron (Fe), and other unavoidable impurities, wherein a thickness of the heavy-wall steel plate is 40 mm or more.
IPC 8 full level
C21D 1/28 (2006.01); C21D 8/02 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/08 (2006.01); C22C 38/12 (2006.01); C22C 38/14 (2006.01); C22C 38/16 (2006.01)
CPC (source: EP KR US)
C21D 1/28 (2013.01 - EP KR US); C21D 6/004 (2013.01 - US); C21D 6/005 (2013.01 - US); C21D 6/008 (2013.01 - US); C21D 8/0205 (2013.01 - US); C21D 8/0226 (2013.01 - EP KR US); C21D 8/0263 (2013.01 - EP KR US); C21D 9/46 (2013.01 - KR US); C22C 38/001 (2013.01 - EP KR); C22C 38/002 (2013.01 - KR US); C22C 38/02 (2013.01 - EP KR US); C22C 38/04 (2013.01 - EP KR); C22C 38/06 (2013.01 - EP KR US); C22C 38/08 (2013.01 - EP KR); C22C 38/12 (2013.01 - EP); C22C 38/14 (2013.01 - EP); C22C 38/16 (2013.01 - EP KR); C22C 38/42 (2013.01 - US); C22C 38/44 (2013.01 - US); C22C 38/46 (2013.01 - US); C22C 38/48 (2013.01 - US); C22C 38/50 (2013.01 - US); C22C 38/58 (2013.01 - US); C21D 2211/005 (2013.01 - EP US); C21D 2211/009 (2013.01 - EP US)
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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3561106 A1 20191030; EP 3561106 A4 20191030; CN 110114490 A 20190809; JP 2020503445 A 20200130; KR 101889189 B1 20180816; KR 20180073256 A 20180702; US 2019382865 A1 20191219; WO 2018117449 A1 20180628; WO 2018117449 A8 20190103
DOCDB simple family (application)
EP 17882598 A 20171124; CN 201780079763 A 20171124; JP 2019533605 A 20171124; KR 20160176896 A 20161222; KR 2017013550 W 20171124; US 201716471268 A 20171124