EP 2799582 A4 20160224 - WEAR RESISTANT AUSTENITIC STEEL HAVING SUPERIOR MACHINABILITY AND DUCTILITY METHOD FOR PRODUCING SAME
Title (en)
WEAR RESISTANT AUSTENITIC STEEL HAVING SUPERIOR MACHINABILITY AND DUCTILITY METHOD FOR PRODUCING SAME
Title (de)
VERSCHLEISSFESTER AUSTENITISCHER STAHL MIT AUSGEZEICHNETER BEARBEITBARKEIT UND DUKTILITÄT SOWIE HERSTELLUNGSVERFAHREN DAFÜR
Title (fr)
ACIER AUSTÉNITIQUE RÉSISTANT À L'USURE ET PRÉSENTANT UNE USINABILITÉ ET UNE DUCTILITÉ AMÉLIORÉES, ET PROCÉDÉ DE PRODUCTION CORRESPONDANT
Publication
Application
Priority
- KR 20110145213 A 20111228
- KR 20120151507 A 20121221
- KR 2012011536 W 20121227
Abstract (en)
[origin: EP2799582A1] Provided are a wear resistant austenitic steel having superior machinability and ductility and a method for producing same, the austenitic steel comprising, in weight %, 8 to 15% of manganese (Mn), carbon (C) that satisfies the relationship of 23% < 33.5C-Mn ‰¤ 37%, copper (Cu) that satisfies 1.6C-1.4(%) ‰¤ Cu ‰¤ 5%, 0.03 to 0.1% of sulfur (S), 0.001 to 0.01% of calcium (Ca), the remainder being Fe and other inevitable impurities. According to the present invention, austenitic steel having superior machinability is provided in which the generation of carbide in the steel is inhibited in order to prevent degradation of the steel, and corrosion resistance is sufficiently ensured to enable the steel to be used with a long service life in a corrosive environment.
IPC 8 full level
C22C 38/00 (2006.01); C21D 6/00 (2006.01); C21D 8/02 (2006.01); C21D 9/46 (2006.01); C22C 38/04 (2006.01); C22C 38/16 (2006.01); C22C 38/20 (2006.01); C22C 38/38 (2006.01); C22C 38/60 (2006.01)
CPC (source: EP US)
B21B 1/026 (2013.01 - US); C21D 6/005 (2013.01 - EP US); C21D 8/0263 (2013.01 - EP US); C21D 9/46 (2013.01 - EP US); C22C 38/00 (2013.01 - EP US); C22C 38/002 (2013.01 - EP US); C22C 38/04 (2013.01 - EP US); C22C 38/16 (2013.01 - EP US); C22C 38/20 (2013.01 - EP US); C22C 38/36 (2013.01 - US); C22C 38/38 (2013.01 - EP US); C22C 38/60 (2013.01 - EP US)
Citation (search report)
- [XY] RU 2102518 C1 19980120 - RANSPORTA, et al
- [YA] WO 2007024092 A1 20070301 - POSCO [KR], et al
- [XA] WO 03060174 A1 20030724 - RADON ROMAN [US]
- [A] KR 20110075610 A 20110706 - POSCO [KR]
- [A] CN 102286704 A 20111221
- [A] CN 102286703 A 20111221
- [A] US 2206847 A 19400702 - LORIG CLARENCE H
- [A] US 2310308 A 19430209 - MORRISON RAYMOND L
- [A] US 4494988 A 19850122 - SCHUMACHER WILLIAM J [US], et al
- See references of WO 2013100613A1
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 2799582 A1 20141105; EP 2799582 A4 20160224; EP 2799582 B1 20190619; CN 104204262 A 20141210; CN 104204262 B 20180202; JP 2015507700 A 20150312; JP 6014682 B2 20161025; US 2014356220 A1 20141204; WO 2013100613 A1 20130704
DOCDB simple family (application)
EP 12862562 A 20121227; CN 201280070858 A 20121227; JP 2014550002 A 20121227; KR 2012011536 W 20121227; US 201214368897 A 20121227