EP 3395989 B1 20200715 - AUSTENITIC STEEL MATERIAL HAVING EXCELLENT HYDROGEN-EMBRITTLEMENT RESISTANCE
Title (en)
AUSTENITIC STEEL MATERIAL HAVING EXCELLENT HYDROGEN-EMBRITTLEMENT RESISTANCE
Title (de)
AUSTENITISCHES STAHLMATERIAL MIT HERVORRAGENDER BESTÄNDIGKEIT GEGEN WASSERSTOFFVERSPRÖDUNG
Title (fr)
MATÉRIAU EN ACIER AUSTÉNITIQUE PRÉSENTANT UNE EXCELLENTE RÉSISTANCE À LA FRAGILISATION PAR L'HYDROGÈNE
Publication
Application
Priority
- KR 20150184291 A 20151222
- KR 2016015085 W 20161222
Abstract (en)
[origin: EP3395989A1] Disclosed is an austenitic material having excellent hydrogen-embrittlement resistance, comprising, by weight, 0.1-0.5% of C, 5% or less (0% exclusive) of Cu, 1% or less (0% exclusive) of N, a content of Mn satisfying Mn ‰¥-10.7C+24.5, 10% or less of Cr, 5% or less of Ni, 5% or less of Mo, 4% or less of Si, 5% or less of Al, and a balance amount of Fe and inevitable impurities, with a T-El 2 /T-El 1 ratio of 0.5 or higher, wherein T-El 1 is an elongation at break according to a tensile test at 25°C under an atmospheric condition of 1 atm and T-El 2 is an elongation at break according to a tensile test at 25°C under a hydrogen condition of 70 MPa.
IPC 8 full level
C21D 6/00 (2006.01); C21D 8/00 (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 38/16 (2006.01); C22C 38/38 (2006.01); C22C 38/44 (2006.01); C22C 38/58 (2006.01)
CPC (source: EP KR US)
C21D 6/004 (2013.01 - EP US); C21D 6/005 (2013.01 - EP US); C21D 8/005 (2013.01 - EP US); C22C 38/001 (2013.01 - EP KR US); C22C 38/02 (2013.01 - EP KR US); C22C 38/04 (2013.01 - EP KR US); C22C 38/06 (2013.01 - EP US); C22C 38/08 (2013.01 - EP US); C22C 38/12 (2013.01 - EP US); C22C 38/16 (2013.01 - EP KR US); C22C 38/38 (2013.01 - EP US); C22C 38/44 (2013.01 - KR); C22C 38/58 (2013.01 - EP KR US); C21D 2211/001 (2013.01 - EP KR US); C21D 2211/008 (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
DOCDB simple family (publication)
EP 3395989 A1 20181031; EP 3395989 A4 20181114; EP 3395989 B1 20200715; CA 3009463 A1 20170629; CA 3009463 C 20200922; CN 108431275 A 20180821; JP 2019505675 A 20190228; JP 6703608 B2 20200603; KR 20180085797 A 20180727; US 2019010590 A1 20190110; WO 2017111489 A1 20170629
DOCDB simple family (application)
EP 16879356 A 20161222; CA 3009463 A 20161222; CN 201680075016 A 20161222; JP 2018533257 A 20161222; KR 2016015085 W 20161222; KR 20187019341 A 20161222; US 201616065062 A 20161222