EP 3249067 B1 20201111 - FERRITIC STAINLESS STEEL FOR EXHAUST SYSTEM MEMBER HAVING EXCELLENT CORROSION RESISTANCE AFTER HEATING
Title (en)
FERRITIC STAINLESS STEEL FOR EXHAUST SYSTEM MEMBER HAVING EXCELLENT CORROSION RESISTANCE AFTER HEATING
Title (de)
FERRITISCHER EDELSTAHL FÜR ABGASVORRICHTUNG MIT EXZELLENTER KORROSIONSBESTÄNDIGKEIT NACH ERWÄRMUNG
Title (fr)
ACIER INOXYDABLE FERRITIQUE POUR ÉLÉMENT DE SYSTÈME D'ÉCHAPPEMENT PRÉSENTANT UNE EXCELLENTE RÉSISTANCE À LA CORROSION APRÈS CHAUFFAGE
Publication
Application
Priority
- JP 2015007524 A 20150119
- JP 2016051086 W 20160115
Abstract (en)
[origin: EP3249067A1] A ferritic stainless steel for exhaust system components excellent in corrosion resistance after heating is provided. A ferritic stainless steel for exhaust system components excellent in corrosion resistance after heating includes: 0.015 mass% or less of C; 0.02 mass% or less of N; 0.03 mass% to 1.0 mass of Si; 1.0 mass of Mn; 0.04 mass of P; 0.01 mass of S; 10.5 mass% to 22.5 mass of Cr; 0.02 mass% to 0.5 mass of Sn; 0.003 mass% to 0.2 mass of Al; one or both of 0.03 mass% to 0.35 mass of Ti and 0.03 mass% to 0.6 mass of Nb; and a remnant comprising Fe and inevitable impurities, wherein a grain size number on a surface of the ferritic stainless steel is 6 to 2 to 15 nm of a layer containing Sn at a concentration twice or more of Sn content in the base material is formed on the ferritic stainless steel.
IPC 8 full level
C22C 38/00 (2006.01); C21D 6/00 (2006.01); C21D 8/02 (2006.01); C21D 9/46 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/20 (2006.01); C22C 38/22 (2006.01); C22C 38/24 (2006.01); C22C 38/26 (2006.01); C22C 38/28 (2006.01); C22C 38/30 (2006.01); C22C 38/32 (2006.01); C22C 38/42 (2006.01); C22C 38/44 (2006.01); C22C 38/48 (2006.01); C22C 38/50 (2006.01); C22C 38/60 (2006.01)
CPC (source: EP KR US)
C21D 6/002 (2013.01 - EP US); C21D 8/0205 (2013.01 - EP US); C21D 8/0236 (2013.01 - EP US); C21D 8/0273 (2013.01 - EP US); C21D 9/46 (2013.01 - EP KR US); C22C 38/001 (2013.01 - EP US); C22C 38/002 (2013.01 - EP US); C22C 38/004 (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 KR US); C22C 38/28 (2013.01 - EP KR US); C22C 38/30 (2013.01 - EP US); C22C 38/32 (2013.01 - EP US); C22C 38/42 (2013.01 - EP US); C22C 38/44 (2013.01 - EP US); C22C 38/48 (2013.01 - EP KR US); C22C 38/50 (2013.01 - EP KR US); C22C 38/60 (2013.01 - EP KR US); C21D 2211/005 (2013.01 - EP KR US)
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
DOCDB simple family (publication)
EP 3249067 A1 20171129; EP 3249067 A4 20180704; EP 3249067 B1 20201111; CN 107208213 A 20170926; CN 107208213 B 20190115; ES 2837114 T3 20210629; JP 6779790 B2 20201104; JP WO2016117458 A1 20171109; KR 20170101262 A 20170905; KR 20190092621 A 20190807; MX 2017009376 A 20171108; PL 3249067 T3 20210531; US 2018016655 A1 20180118; WO 2016117458 A1 20160728
DOCDB simple family (application)
EP 16740065 A 20160115; CN 201680006170 A 20160115; ES 16740065 T 20160115; JP 2016051086 W 20160115; JP 2016570601 A 20160115; KR 20177020528 A 20160115; KR 20197022451 A 20160115; MX 2017009376 A 20160115; PL 16740065 T 20160115; US 201615544476 A 20160115