EP 1896624 B1 20100818 - MARTENSITIC STAINLESS STEEL COMPOSITION, METHOD FOR MAKING A MECHANICAL PART FROM SAID STEEL AND RESULTING PART
Title (en)
MARTENSITIC STAINLESS STEEL COMPOSITION, METHOD FOR MAKING A MECHANICAL PART FROM SAID STEEL AND RESULTING PART
Title (de)
ZUSAMMENSETZUNG VON MARTENSITISCHEM NICHTROSTENDEM STAHL, VERFAHREN ZUR HERSTELLUNG EINES MECHANISCHEN TEILS DARAUS UND RESULTIERENDES TEIL
Title (fr)
COMPOSITION D'ACIER INOXYDABLE MARTENSITIQUE, PROCEDE DE FABRICATION D'UNE PIECE MECANIQUE A PARTIR DE CET ACIER ET PIECE AINSI OBTENUE
Publication
Application
Priority
- FR 2006001472 W 20060626
- FR 0506591 A 20050628
Abstract (en)
[origin: WO2007003748A1] The invention concerns martensitic stainless steel, characterized in that its composition in weight percentages is as follows: 9 % = Cr = 13 %; 1.5 % = Mo = 3 %; 8 % = Ni = 14 %; 1 % = Al = 2 %; 0.5 % = Ti = 1.5 % with AI + Ti = 2.25 %; traces = Co = 2 %; traces = W = 1 % with Mo + (W/2) = 3 %; traces = P = 0.02 %; traces = S = 0.0050 %; traces = N = 0.0060 %; traces = C = 0.025 %; traces = Cu = 0.5 %; traces = Mn = 3 %; traces = Si = 0.25 %; traces = O = 0.0050 %; and is such that: Ms (°C) = 1302 42 Cr 63 Ni 30 Mo + 20AI - 15W - 33Mn - 28Si - 30Cu - 13Co + 10 Ti = 50Cr eq / Ni eq = 1 .05 with Cr eq (%) = Cr + 2Si + Mo + 1.5 Ti + 5.5 AI + 0.6W Ni eq (%) = 2Ni + 0.5 Mn + 3O C + 25 N + Co + 0.3 Cu. The invention also concerns a method for making a mechanical part using said steel, and the resulting part.
IPC 8 full level
C22C 38/44 (2006.01); C21D 1/25 (2006.01); C21D 6/00 (2006.01); C21D 6/04 (2006.01)
CPC (source: EP US)
C21D 1/25 (2013.01 - EP US); C21D 6/004 (2013.01 - EP US); C21D 6/02 (2013.01 - EP US); C21D 6/04 (2013.01 - EP US); C21D 9/32 (2013.01 - EP US); C22C 38/02 (2013.01 - EP US); C22C 38/06 (2013.01 - EP US); C22C 38/44 (2013.01 - EP US); C22C 38/50 (2013.01 - EP US); C21D 2211/004 (2013.01 - EP US); C21D 2211/008 (2013.01 - EP US)
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 NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
FR 2887558 A1 20061229; FR 2887558 B1 20070817; AT E478165 T1 20100915; BR PI0613291 A2 20101228; BR PI0613291 B1 20140826; CA 2612718 A1 20070111; CA 2612718 C 20150106; CN 101248205 A 20080820; CN 101248205 B 20140507; DE 602006016281 D1 20100930; DK 1896624 T3 20100920; EP 1896624 A1 20080312; EP 1896624 B1 20100818; ES 2349785 T3 20110111; JP 2008546912 A 20081225; JP 5243243 B2 20130724; PL 1896624 T3 20101231; RU 2008102988 A 20090810; RU 2415196 C2 20110327; SI 1896624 T1 20101029; US 2010139817 A1 20100610; US 8097098 B2 20120117; WO 2007003748 A1 20070111
DOCDB simple family (application)
FR 0506591 A 20050628; AT 06778669 T 20060626; BR PI0613291 A 20060626; CA 2612718 A 20060626; CN 200680030859 A 20060626; DE 602006016281 T 20060626; DK 06778669 T 20060626; EP 06778669 A 20060626; ES 06778669 T 20060626; FR 2006001472 W 20060626; JP 2008518910 A 20060626; PL 06778669 T 20060626; RU 2008102988 A 20060626; SI 200630767 T 20060626; US 99367506 A 20060626