EP 3850114 A1 20210721 - CORROSION-RESISTANT AND PRECIPITATION-HARDENING STEEL, METHOD FOR PRODUCING A STEEL COMPONENT, AND STEEL COMPONENT
Title (en)
CORROSION-RESISTANT AND PRECIPITATION-HARDENING STEEL, METHOD FOR PRODUCING A STEEL COMPONENT, AND STEEL COMPONENT
Title (de)
KORROSIONSBESTÄNDIGER UND AUSSCHEIDUNGSHÄRTENDER STAHL, VERFAHREN ZUR HERSTELLUNG EINES STAHLBAUTEILS UND STAHLBAUTEIL
Title (fr)
ACIER RÉSISTANT À LA CORROSION ET À DURCISSEMENT PAR PRÉCIPITATION, PROCÉDÉ DE PRODUCTION D'UN COMPOSANT D'ACIER, ET COMPOSANT D'ACIER
Publication
Application
Priority
- EP 19206615 A 20191031
- EP 2020080438 W 20201029
Abstract (en)
[origin: WO2021084025A1] According to the invention, a steel, which is characterized by high hardness and strength together with good corrosion resistance, consists of the following in mass percent: C: < 0.02%, Si: < 2.0%, Mn: < 2.0%, Cr: 14.0-18.0%, Ni: 3.0-6.0%, Cu: 2.0-4.0%, optionally Co: < 6.0%, Nb: 1.0-5.0%, optionally W: 0.45-5.0%, the sum of the concentrations of Nb and W being at least 1.0% and at most 5%, optionally Mo: 0.25-6.0%, optionally Al: 0.25-6.0%, optionally Ti: 0.25-6.0%, the sum of the concentrations of Al and Ti, if they are present, being 0.25-6.0%, P: < 0.035%, S: < 0.035%, the remainder iron and unavoidable impurities. The invention further relates to a method for producing a component, said method being based on a steel of this type, to a component produced from the steel according to the invention and to advantageous uses of the steel.
IPC 8 full level
C21D 1/28 (2006.01); B22F 3/105 (2006.01); B22F 3/15 (2006.01); B33Y 10/00 (2015.01); B33Y 70/00 (2020.01); B33Y 80/00 (2015.01); C21D 1/25 (2006.01); C21D 6/00 (2006.01); C21D 6/02 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/42 (2006.01); C22C 38/44 (2006.01); C22C 38/48 (2006.01); C22C 38/50 (2006.01); C22C 38/52 (2006.01)
CPC (source: EP)
C21D 1/25 (2013.01); C21D 6/004 (2013.01); C21D 6/02 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C22C 38/42 (2013.01); C22C 38/44 (2013.01); C22C 38/48 (2013.01); C22C 38/50 (2013.01); C22C 38/52 (2013.01); B22F 3/15 (2013.01); B22F 10/00 (2021.01); C21D 6/007 (2013.01); C21D 2211/008 (2013.01); Y02P 10/25 (2015.11)
Citation (search report)
See references of WO 2021084025A1
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)
DOCDB simple family (application)
EP 2020080438 W 20201029; EP 20796826 A 20201029