EP 2554701 A4 20150429 - FERRITIC STAINLESS STEEL SHEET SUPERIOR IN SURFACE GLOSSINESS AND CORROSION RESISTANCE AND METHOD FOR PRODUCING SAME
Title (en)
FERRITIC STAINLESS STEEL SHEET SUPERIOR IN SURFACE GLOSSINESS AND CORROSION RESISTANCE AND METHOD FOR PRODUCING SAME
Title (de)
FERRITISCHES EDELSTAHLBLECH MIT HERVORRAGENDEM OBERFLÄCHENGLANZ UND HERVORRAGENDER KORROSIONSFESTIGKEIT SOWIE HERSTELLUNGSVERFAHREN DAFÜR
Title (fr)
FEUILLE D'ACIER INOXYDABLE FERRITIQUE PRÉSENTANT UN MEILLEUR BRILLANT DE SURFACE ET UNE MEILLEURE RÉSISTANCE À LA CORROSION ET PROCÉDÉ DE FABRICATION DE CETTE DERNIÈRE
Publication
Application
Priority
- JP 2010239851 A 20101026
- JP 2010076099 A 20100329
- JP 2011057512 W 20110322
Abstract (en)
[origin: EP2554701A1] The stainless steel sheet according to the present invention is a ferritic stainless steel which is comprised of, by mass%, C: 0.001 to 0.03%, Si: 0.01 to 1.0%, Mn: 0.01 to 1.5%, P: 0.005 to 0.05%, S: 0.0001 to 0.01%, Cr: 12 to 16%, N: 0.001 to 0.03%, Nb: 0.05 to 0.3%, Ti: 0.03 to 0.15%, Al: 0.005 to 0.5%, Sn: 0.01 to 1.0%, and has the remainder of Fe and unavoidable impurities and satisfies the relationship of 1‰¤Nb/Ti‰¤3.5. The method comprises heating a slab of stainless steel which contains the above steel ingredients, setting the extraction temperature 1080 to 1190°C, and setting the coiling temperature after the end of hot rolling 500 to 700°C. After hot rolling, the method comprises annealing the hot rolled sheet, which can be omitted, cold rolling once or cold rolling twice or more which includes processing annealing, and finish annealing the steel sheet at 850 to 980°C.
IPC 8 full level
C22C 38/00 (2006.01); B21B 3/02 (2006.01); C21D 8/02 (2006.01); C21D 9/46 (2006.01); C22C 38/28 (2006.01); C22C 38/54 (2006.01)
CPC (source: EP KR US)
B21B 3/02 (2013.01 - KR); C21D 6/002 (2013.01 - EP KR US); C21D 8/0205 (2013.01 - EP KR US); C22C 38/001 (2013.01 - KR); C22C 38/008 (2013.01 - KR); C22C 38/02 (2013.01 - KR); C22C 38/04 (2013.01 - KR); C22C 38/06 (2013.01 - KR); C22C 38/26 (2013.01 - EP KR US); C22C 38/28 (2013.01 - KR); B21B 3/02 (2013.01 - EP US); C21D 2211/005 (2013.01 - EP KR US)
Citation (search report)
- [A] WO 2007129703 A1 20071115 - NIPPON STEEL & SUMIKIN SST [JP], et al
- [A] JP H07150288 A 19950613 - NIPPON STEEL CORP
- [A] JP 2009235555 A 20091015 - NIPPON STEEL & SUMIKIN SST
- [A] EP 1734143 A1 20061220 - NIPPON STEEL & SUMIKIN SST [JP]
- See references of WO 2011122513A1
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 2554701 A1 20130206; EP 2554701 A4 20150429; EP 2554701 B1 20160629; BR 112012024625 A2 20160531; BR 112012024625 B1 20190108; CN 102822373 A 20121212; CN 102822373 B 20160706; ES 2581315 T3 20160905; JP 5709845 B2 20150430; JP WO2011122513 A1 20130708; KR 101536291 B1 20150713; KR 20120127737 A 20121123; TW 201139698 A 20111116; TW I461547 B 20141121; US 2013017116 A1 20130117; WO 2011122513 A1 20111006
DOCDB simple family (application)
EP 11762738 A 20110322; BR 112012024625 A 20110322; CN 201180017606 A 20110322; ES 11762738 T 20110322; JP 2011057512 W 20110322; JP 2012508270 A 20110322; KR 20127025734 A 20110322; TW 100110342 A 20110325; US 201113638108 A 20110322