EP 3862452 A4 20220629 - AUSTENITIC STAINLESS STEEL SHEET AND METHOD FOR PRODUCING SAME
Title (en)
AUSTENITIC STAINLESS STEEL SHEET AND METHOD FOR PRODUCING SAME
Title (de)
AUSTENITISCHES EDELSTAHLBLECH UND VERFAHREN ZUR HERSTELLUNG DAVON
Title (fr)
TÔLE D'ACIER INOXYDABLE AUSTÉNITIQUE ET PROCÉDÉ DE PRODUCTION DE LADITE TÔLE
Publication
Application
Priority
- JP 2018189321 A 20181004
- JP 2019039288 W 20191004
Abstract (en)
[origin: EP3862452A1] An austenitic stainless steel sheet containing, as a chemical composition, by mass%: C: 0.005% to 0.150%; Si: 1.0% or less; Mn: 1.5% or less; P: 0.10% or less; S: 0.010% or less; Al: 0.10% or less; Cr: 15.0% to 20.0%; Ni: 6.0% to 15.0%; N: 0.005% to 0.150%; Mo: 0% to 2.0%; Cu: 0% to 1.5%; Nb: 0% to 0.500%; V: 0% to 0.150%; Ti: 0% to 0.300%; B: 0% to 0.010%; and a remainder: Fe and impurities, in which a Md30 value determined according to Md30 Value = 497 - 462 × (C + N) - 9.2 × Si - 8.1 × Mn - 13.7 × Cr - 20 × (Ni + Cu) - 18.7 × Mo is 60°C or less, and in a surface layer portion, the area ratio of martensite is 5.0% or less, and the area ratio of austenite grains having a {110} plane orientation is 50% or greater.
IPC 8 full level
C21D 1/30 (2006.01); C21D 6/00 (2006.01); C21D 8/02 (2006.01); C21D 9/46 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/40 (2006.01); C22C 38/42 (2006.01); C22C 38/44 (2006.01); C22C 38/46 (2006.01); C22C 38/48 (2006.01); C22C 38/50 (2006.01); C22C 38/54 (2006.01); C22C 38/60 (2006.01)
CPC (source: EP KR)
C21D 1/30 (2013.01 - EP); C21D 6/004 (2013.01 - EP); C21D 8/0205 (2013.01 - EP); C21D 8/0226 (2013.01 - EP); C21D 8/0236 (2013.01 - EP); C21D 8/0247 (2013.01 - EP); C21D 8/0263 (2013.01 - EP); C21D 8/0273 (2013.01 - EP); C21D 9/46 (2013.01 - EP KR); C22C 38/001 (2013.01 - EP); C22C 38/002 (2013.01 - EP); C22C 38/008 (2013.01 - EP); C22C 38/02 (2013.01 - EP); C22C 38/04 (2013.01 - EP); C22C 38/06 (2013.01 - EP); C22C 38/40 (2013.01 - EP); C22C 38/42 (2013.01 - EP KR); C22C 38/44 (2013.01 - EP KR); C22C 38/46 (2013.01 - EP KR); C22C 38/48 (2013.01 - EP KR); C22C 38/50 (2013.01 - EP KR); C22C 38/54 (2013.01 - EP KR); C22C 38/60 (2013.01 - EP); C21D 2211/001 (2013.01 - KR)
Citation (search report)
- [X] WO 2016047734 A1 20160331 - NIPPON STEEL & SUMITOMO METAL CORP [JP]
- [A] JP 2017014538 A 20170119 - NIPPON STEEL & SUMIKIN SST
- [A] US 2009202380 A1 20090813 - CONRAD FRANCOIS [FR], et al
- [A] US 2014017517 A1 20140116 - KAWAGOE TAKAFUMI [JP], et al
- [AD] WO 2016043125 A1 20160324 - NIPPON STEEL & SUMITOMO METAL CORP [JP]
- [A] WO 2014030607 A1 20140227 - NIPPON STEEL & SUMITOMO METAL CORP [JP]
- [A] US 2018237882 A1 20180823 - UNNO HIROTO [JP], et al
- See references of WO 2020071534A1
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 3862452 A1 20210811; EP 3862452 A4 20220629; CN 112789362 A 20210511; CN 112789362 B 20220816; JP 7165202 B2 20221102; JP WO2020071534 A1 20210902; KR 102550028 B1 20230703; KR 20210052502 A 20210510; WO 2020071534 A1 20200409
DOCDB simple family (application)
EP 19868476 A 20191004; CN 201980064860 A 20191004; JP 2019039288 W 20191004; JP 2020551110 A 20191004; KR 20217009245 A 20191004