EP 2164998 B1 20101201 - HARDENED MARTENSITIC STEEL HAVING A LOW OR ZERO CONTENT OF COBALT, PROCESS FOR MANUFACTURING A PART FROM THIS STEEL, AND PART THUS OBTAINED
Title (en)
HARDENED MARTENSITIC STEEL HAVING A LOW OR ZERO CONTENT OF COBALT, PROCESS FOR MANUFACTURING A PART FROM THIS STEEL, AND PART THUS OBTAINED
Title (de)
GEHÄRTETER MARTENSITISCHER STAHL MIT GERINGEM ODER OHNE KOBALTANTEIL, VERFAHREN ZUR HERSTELLUNG EINES TEILS AUS DIESEM STAHL UND IN DIESEM VERFAHREN HERGESTELLTES TEIL
Title (fr)
ACIER MARTENSITIQUE DURCI À TENEUR FAIBLE OU NULLE EN COBALT, PROCÉDÉ DE FABRICATION D'UNE PIÈCE À PARTIR DE CET ACIER, ET PIÈCE AINSI OBTENUE
Publication
Application
Priority
- FR 2008051080 W 20080618
- FR 0756379 A 20070710
Abstract (en)
[origin: US9045806B2] Steel, characterized in that the composition thereof is, in percentages by weight: C=0.20-0.30% Co=trace levels-1% Cr=2-5% Al=1-2% Mo+W/2=1-4% V=trace levels-0.3% Nb=trace levels-0.1% B=trace levels-30 ppm Ni=11-16% with Ni≧7+3.5 Al Si=trace levels-1.0% Mn=trace levels-2.0% Ca=trace levels-20 ppm rare earths=trace levels-100 ppm if N≰10 ppm, Ti+Zr/2=trace levels-100 ppm with Ti+Zr/2≰10 N if 10 ppm<N≰20 ppm, Ti+Zr/2=trace levels-150 ppm O=trace levels-50 ppm N=trace levels-20 ppm S=trace levels-20 ppm Cu=trace levels-1% P=trace levels-200 ppm the remainder being iron and inevitable impurities resulting from the production operation. Method of producing a component from this steel and a component obtained in this manner.
IPC 8 full level
C21D 6/00 (2006.01); B64C 25/02 (2006.01); B64D 27/00 (2006.01); C21D 6/02 (2006.01); C21D 6/04 (2006.01); C22C 38/44 (2006.01); C22C 38/50 (2006.01); C22C 38/52 (2006.01); F16D 3/00 (2006.01); F16H 3/00 (2006.01)
CPC (source: EP US)
C21D 6/004 (2013.01 - EP US); C21D 6/02 (2013.01 - EP US); C21D 6/04 (2013.01 - EP US); C22C 38/44 (2013.01 - EP US); C22C 38/50 (2013.01 - EP US); C22C 38/52 (2013.01 - EP US); C21D 1/58 (2013.01 - EP 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 MT NL NO PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2009007562 A1 20090115; AT E490347 T1 20101215; CA 2694844 A1 20090115; CA 2694844 C 20150728; CN 101815797 A 20100825; CN 101815797 B 20120516; DE 602008003811 D1 20110113; DK 2164998 T3 20110314; EP 2164998 A1 20100324; EP 2164998 B1 20101201; ES 2352788 T3 20110223; JP 2010533240 A 20101021; JP 5328785 B2 20131030; PL 2164998 T3 20110531; RU 2010104452 A 20110820; RU 2456367 C2 20120720; SI 2164998 T1 20110131; US 2010200119 A1 20100812; US 9045806 B2 20150602
DOCDB simple family (application)
FR 2008051080 W 20080618; AT 08806015 T 20080618; CA 2694844 A 20080618; CN 200880103287 A 20080618; DE 602008003811 T 20080618; DK 08806015 T 20080618; EP 08806015 A 20080618; ES 08806015 T 20080618; JP 2010515557 A 20080618; PL 08806015 T 20080618; RU 2010104452 A 20080618; SI 200830116 T 20080618; US 66829708 A 20080618