EP 2520684 B1 20161026 - AUSTENITE STEEL MATERIAL HAVING SUPERIOR DUCTILITY
Title (en)
AUSTENITE STEEL MATERIAL HAVING SUPERIOR DUCTILITY
Title (de)
AUSTENITSTAHLMATERIAL MIT ERHÖHTER DEHNBARKEIT
Title (fr)
MATÉRIAU D'ACIER AUSTÉNITIQUE À DUCTILITÉ SUPÉRIEURE
Publication
Application
Priority
- KR 20100133641 A 20101223
- KR 20090132105 A 20091228
- KR 2010009393 W 20101228
Abstract (en)
[origin: EP2520684A2] Provided is an austenite steel having excellent ductility including 8 wt% to 15 wt% of manganese (Mn), 3 wt% or less (excluding 0 wt%) of copper (Cu), a content of carbon (C) satisfying relationships of 33.5C + Mn ‰¥ 25 and 33.5C - Mn ‰¤ 23, and iron (Fe) as well as unavoidable impurities as a remainder. According to an aspect of the present invention, austenite is stabilized and generation of carbides in a network form at austenite grain boundaries is inhibited by adding copper (Cu) favorable to inhibition of carbide formation with respect to manganese and appropriately controlling contents of carbon and manganese, and thus, high economic efficiency may also be achieved while ductility and wear resistance are improved.
IPC 8 full level
C22C 38/04 (2006.01); C22C 38/18 (2006.01)
CPC (source: EP US)
C22C 38/04 (2013.01 - EP US); C22C 38/16 (2013.01 - EP US); C22C 38/20 (2013.01 - EP US); C22C 38/38 (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 2520684 A2 20121107; EP 2520684 A4 20150114; EP 2520684 B1 20161026; EP 2520684 B9 20170104; CA 2785318 A1 20110707; CA 2785318 C 20140610; CN 102906294 A 20130130; JP 2013515864 A 20130509; JP 5668081 B2 20150212; US 2012288396 A1 20121115; WO 2011081393 A2 20110707; WO 2011081393 A3 20111110
DOCDB simple family (application)
EP 10841225 A 20101228; CA 2785318 A 20101228; CN 201080064846 A 20101228; JP 2012547009 A 20101228; KR 2010009393 W 20101228; US 201013519343 A 20101228