EP 2233596 B1 20130918 - Cold worked steel object
Title (en)
Cold worked steel object
Title (de)
Kaltarbeitsstahl-Gegenstand
Title (fr)
Objet en acier pour travail à froid
Publication
Application
Priority
AT 4022009 A 20090312
Abstract (en)
[origin: EP2233596A1] A cold-forming steel article contains composition comprising (in wt.%) carbon (1.1-1.7), manganese (0.1-0.6), silicon (0.4-1.1), chromium (5.6-7.0), molybdenum (1.2-1.8), vanadium (3.5-3.9), tungsten (1.1-5.0), optionally niobium (0.4 or less) and remaining iron and unavoidable impurities. The article is formed by atomization of a melt to form a powder, carrying out hot isotactic pressing of the powder and hardening the powder by heat treatment. The article has hardness of 60 HRC or more and toughness of more than 50 J. An independent claim is included for manufacture of the cold-forming steel article.
IPC 8 full level
C22C 33/02 (2006.01); C22C 38/22 (2006.01)
CPC (source: EP US)
B22F 9/08 (2013.01 - EP US); C22C 33/0285 (2013.01 - EP US); C22C 38/02 (2013.01 - EP US); C22C 38/04 (2013.01 - EP US); C22C 38/22 (2013.01 - EP US); C22C 38/24 (2013.01 - EP US); B22F 2003/248 (2013.01 - EP US); B22F 2998/10 (2013.01 - EP US); Y10T 428/12028 (2015.01 - US); Y10T 428/12056 (2015.01 - US)
Designated contracting state (EPC)
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 SE SI SK SM TR
DOCDB simple family (publication)
EP 2233596 A1 20100929; EP 2233596 B1 20130918; AT 508591 A1 20110215; AT 508591 B1 20110415; BR PI1000558 A2 20110322; BR PI1000558 B1 20180403; CA 2696389 A1 20100912; CA 2696389 C 20150210; DK 2233596 T3 20131216; SI 2233596 T1 20140228; US 2010233500 A1 20100916; US 8298313 B2 20121030
DOCDB simple family (application)
EP 10450028 A 20100223; AT 4022009 A 20090312; BR PI1000558 A 20100311; CA 2696389 A 20100311; DK 10450028 T 20100223; SI 201030447 T 20100223; US 71852310 A 20100305