EP 2893049 A1 20150715 - FERRITIC STAINLESS STEEL SHEET, METHOD FOR THE PRODUCTION THEREOF, AND USE OF SAME, ESPECIALLY IN EXHAUST LINES
Title (en)
FERRITIC STAINLESS STEEL SHEET, METHOD FOR THE PRODUCTION THEREOF, AND USE OF SAME, ESPECIALLY IN EXHAUST LINES
Title (de)
BLECH AUS FERRITISCHEM EDELSTAHL, VERFAHREN ZUR HERSTELLUNG UND VERWENDUNG, INSBESONDERE IN ABGASLEITUNGEN
Title (fr)
TÔLE D'ACIER INOXYDABLE FERRITIQUE, SON PROCÉDÉ DE FABRICATION, ET SON UTILISATION, NOTAMMENT DANS DES LIGNES D'ÉCHAPPEMENT
Publication
Application
Priority
FR 2012051969 W 20120903
Abstract (en)
[origin: WO2014033372A1] The invention relates to a ferritic stainless steel sheet of the following composition expressed in weight percentages: trace <= C <= 0.03%; 0.2% <=Mn <=1%; 0.2 % <= Si <= 1%; trace <= S <= 0.01%; trace <= P <= 0.04%; 15% <= Cr <= 22%; trace <= Ni <= 0.5%; trace <= Mo <= 2%; trace <= Cu <= 0.5%; 0.160% <=Ti <= 1%; 0.02% <= Al <= 1%; 0.2% <= Nb <= 1%; trace <= V <= 0.2%; 0.009% <= N <= 0.03%; trace <= Co <= 0.2%; trace <= Sn <= 0.05%; rare earths (REE) <= 0.1%; trace <= Zr <= 0.01%; the rest of the composition consisting of iron and inevitable impurities resulting from the processing thereof; the Al and rare earth (REE) contents satisfying the relation: Al + 30 x REE >= 0.15%; the Nb, C, N and Ti contents in % satisfying the relation: 1 / [Nb + (7/4) x Ti - 7 x (C + N)] <= 3; said sheet having an entirely recrystallised structure and an average ferritic grain size of between 25 and 65 µm. The invention also relates to a method for the production of such a ferritic stainless steel sheet, and to the use thereof for the production of parts involving shaping and welding, that are to be subjected to a periodic use temperature of between 50° C and 700° C and to a projection of a mixture of water, urea and ammonia.
IPC 8 full level
C22C 38/00 (2006.01); C22C 38/28 (2006.01); C22C 38/50 (2006.01)
CPC (source: EP US)
B22D 7/00 (2013.01 - EP US); C21D 6/002 (2013.01 - EP US); C21D 6/004 (2013.01 - EP US); C21D 6/005 (2013.01 - EP US); C21D 6/007 (2013.01 - EP US); C21D 6/008 (2013.01 - EP US); C21D 8/0205 (2013.01 - EP US); C21D 8/0226 (2013.01 - EP US); C21D 8/0236 (2013.01 - EP US); C21D 8/0263 (2013.01 - EP US); C21D 8/0273 (2013.01 - EP US); C21D 9/46 (2013.01 - EP US); C22C 38/001 (2013.01 - EP US); C22C 38/002 (2013.01 - EP US); C22C 38/005 (2013.01 - EP US); C22C 38/008 (2013.01 - EP US); C22C 38/02 (2013.01 - EP US); C22C 38/04 (2013.01 - EP US); C22C 38/06 (2013.01 - EP US); C22C 38/20 (2013.01 - EP US); C22C 38/22 (2013.01 - EP US); C22C 38/24 (2013.01 - EP US); C22C 38/26 (2013.01 - EP US); C22C 38/28 (2013.01 - EP US); C22C 38/30 (2013.01 - EP US); C22C 38/42 (2013.01 - EP US); C22C 38/44 (2013.01 - EP US); C22C 38/46 (2013.01 - EP US); C22C 38/48 (2013.01 - EP US); C22C 38/50 (2013.01 - EP US); C22C 38/52 (2013.01 - EP US); F01N 3/2066 (2013.01 - US); C21D 2211/005 (2013.01 - EP US); F01N 2610/02 (2013.01 - US)
Citation (search report)
See references of WO 2014033372A1
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)
WO 2014033372 A1 20140306; BR 112015004633 A2 20170704; CA 2883538 A1 20140306; CA 2883538 C 20191126; CN 104903482 A 20150909; CN 104903482 B 20170308; EP 2893049 A1 20150715; EP 2893049 B1 20201007; ES 2831163 T3 20210607; HU E052513 T2 20210528; IN 1710DEN2015 A 20150522; JP 2015532681 A 20151112; KR 20150099706 A 20150901; MX 2015002716 A 20150814; RU 2015107432 A 20160927; RU 2603519 C2 20161127; SI 2893049 T1 20210331; US 2016115562 A1 20160428; US 9873924 B2 20180123
DOCDB simple family (application)
FR 2012051969 W 20120903; BR 112015004633 A 20120903; CA 2883538 A 20120903; CN 201280076210 A 20120903; EP 12766456 A 20120903; ES 12766456 T 20120903; HU E12766456 A 20120903; IN 1710DEN2015 A 20150302; JP 2015529088 A 20120903; KR 20157006981 A 20120903; MX 2015002716 A 20120903; RU 2015107432 A 20120903; SI 201231867 T 20120903; US 201214425313 A 20120903