EP 2159296 B1 20160316 - HARDENED AND TEMPERED STEEL AND METHOD FOR PRODUCING PARTS OF SAID STEEL
Title (en)
HARDENED AND TEMPERED STEEL AND METHOD FOR PRODUCING PARTS OF SAID STEEL
Title (de)
GEHÄRTETER UND GETEMPERTER STAHL UND VERFAHREN ZUR HERSTELLUNG VON TEILEN AUS DEM STAHL
Title (fr)
ACIER TREMPÉ ET DURCI ET PROCÉDÉ PERMETTANT DE PRODUIRE DES PIÈCES À PARTIR DUDIT ACIER
Publication
Application
Priority
ES 2007000224 W 20070413
Abstract (en)
[origin: EP2159296A1] The invention relates to a quench hardened and tempered steel with a specific composition of the following elements: 0.22% ‰¤ C ‰¤ 0.30%, 0.40% ‰¤ Mn <1.00%, 1.00% ‰¤ Cr ‰¤ 2.50%, 1.80,% ‰¤ Ni ‰¤ 4.00%, 0.30% ‰¤ Mo < 0.90% and 0.01 % ‰¤ V < 0.50%, which with a method for obtaining said steel achieves low P and S contents, contributes to increasing the mechanical strength of the steel to values greater than 1200 N/mm 2 and with high toughness, KV resilience at low temperature, -20°C, with values greater than 60 J, when a part for the manufacture of which said steel has been selected is subjected to a specific quench hardening and tempering treatment.
IPC 8 full level
C22C 38/18 (2006.01); C21C 1/02 (2006.01); C21C 1/04 (2006.01); C21C 5/52 (2006.01); C21C 7/00 (2006.01); C21C 7/04 (2006.01); C21C 7/06 (2006.01); C21C 7/064 (2006.01); C21C 7/10 (2006.01); C21D 1/18 (2006.01); C21D 1/22 (2006.01); C21D 1/25 (2006.01); C21D 6/00 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/40 (2006.01); C22C 38/42 (2006.01); C22C 38/44 (2006.01); C22C 38/46 (2006.01)
CPC (source: EP)
C21C 1/02 (2013.01); C21C 7/0006 (2013.01); C21C 7/06 (2013.01); C21C 7/064 (2013.01); C21C 7/10 (2013.01); C21D 1/22 (2013.01); C21D 1/25 (2013.01); C21D 6/004 (2013.01); C21D 6/005 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/42 (2013.01); C22C 38/44 (2013.01); C22C 38/46 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 2159296 A1 20100303; EP 2159296 A4 20140910; EP 2159296 B1 20160316; BR PI0721566 A2 20130122; ES 2576453 T3 20160707; WO 2008125700 A1 20081023
DOCDB simple family (application)
EP 07730464 A 20070413; BR PI0721566 A 20070413; ES 07730464 T 20070413; ES 2007000224 W 20070413