EP 2480693 A1 20120801 - STAINLESS STEEL HAVING LOCAL VARIATIONS IN MECHANICAL RESISTANCE
Title (en)
STAINLESS STEEL HAVING LOCAL VARIATIONS IN MECHANICAL RESISTANCE
Title (de)
EDELSTAHL MIT LOKALEN VARIATIONEN DER MECHANISCHEN BESTÄNDIGKEIT
Title (fr)
ACIER INOXYDABLE À VARIATIONS LOCALES DE RÉSISTANCE MÉCANIQUE
Publication
Application
Priority
FR 2009001110 W 20090921
Abstract (en)
[origin: WO2011033180A1] The invention mainly relates to a stainless steel sheet containing a minimum of 10.5 wt % of Cr and a maximum of 1.2 wt % of C, the microstructure of which is martensitic or austeno-martensitic and contains at least 2 vol % of martensite, essentially characterized in that it includes at least one local portion having reduced mechanical resistance and a martensite content of at least 10% less than of that of the rest of said sheet, wherein said local portion at least partially has a thickness equal to that of said sheet. The invention also relates to a method for manufacturing said steel sheet and to a steel part that can be produced by deforming said sheet.
IPC 8 full level
C21D 1/09 (2006.01); B21D 22/20 (2006.01); B62D 25/02 (2006.01); C21D 1/18 (2006.01); C22C 38/18 (2006.01)
CPC (source: EP KR US)
C21D 1/09 (2013.01 - EP US); C21D 1/18 (2013.01 - EP US); C21D 8/021 (2013.01 - KR); C22C 38/18 (2013.01 - EP US)
Citation (search report)
See references of WO 2011033180A1
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)
WO 2011033180 A1 20110324; BR 112012006324 A2 20200811; CN 102741432 A 20121017; CN 102741432 B 20131113; EP 2480693 A1 20120801; EP 2480693 B1 20180912; ES 2704643 T3 20190319; JP 2013505364 A 20130214; KR 20120095364 A 20120828; MX 2012003385 A 20120725; SI 2480693 T1 20190430; US 2012237387 A1 20120920
DOCDB simple family (application)
FR 2009001110 W 20090921; BR 112012006324 A 20090921; CN 200980162400 A 20090921; EP 09740179 A 20090921; ES 09740179 T 20090921; JP 2012530302 A 20090921; KR 20127010105 A 20090921; MX 2012003385 A 20090921; SI 200931904 T 20090921; US 200913497155 A 20090921