EP 3683324 A4 20210303 - AUSTENITIC STAINLESS STEEL AND METHOD FOR PRODUCING SAME
Title (en)
AUSTENITIC STAINLESS STEEL AND METHOD FOR PRODUCING SAME
Title (de)
AUSTENITISCHER EDELSTAHL UND VERFAHREN ZUR HERSTELLUNG DAVON
Title (fr)
ACIER INOXYDABLE AUSTÉNITIQUE ET SON PROCÉDÉ DE PRODUCTION
Publication
Application
Priority
- JP 2017175651 A 20170913
- JP 2018033714 W 20180911
Abstract (en)
[origin: EP3683324A1] Provided are an austenitic stainless steel that has high strength and favorable shape retention properties after a heat treatment, and a production method thereof. One aspect of the present invention is the austenitic stainless steel wherein a component composition satisfies C: less than or equal to 0.12% by mass; Si: greater than or equal to 0.1% by mass and less than or equal to 1.0% by mass; Mn: greater than or equal to 0.1% by mass and less than or equal to 3.0% by mass; P: less than or equal to 0.05% by mass; S: less than or equal to 0.01% by mass; Cr: greater than or equal to 13.0% by mass and less than or equal to 22.0% by mass; Ni: greater than or equal to 4.0% by mass and less than or equal to 12.0% by mass; Cu: greater than or equal to 0.01% by mass and less than or equal to 0.50% by mass; Mo: less than or equal to 5.0% by mass; Al: less than or equal to 0.03% by mass; Nb: greater than or equal to 0.05% by mass and less than or equal to 0.30% by mass; N: greater than or equal to 0.10% by mass and less than or equal to 0.50% by mass; and a balance consisting of Fe and inevitable impurities, and a crystal grain size number is greater than or equal to 7.0.
IPC 8 full level
C22C 38/42 (2006.01); C21D 6/00 (2006.01); C21D 6/02 (2006.01); C21D 8/02 (2006.01); C21D 8/10 (2006.01); C21D 9/08 (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 38/44 (2006.01); C22C 38/48 (2006.01); C22C 38/58 (2006.01)
CPC (source: EP KR US)
C21D 1/26 (2013.01 - US); C21D 6/00 (2013.01 - EP); C21D 6/004 (2013.01 - EP US); C21D 6/005 (2013.01 - EP US); C21D 6/008 (2013.01 - US); C21D 6/02 (2013.01 - EP); C21D 8/005 (2013.01 - US); C21D 8/02 (2013.01 - EP); C21D 8/0205 (2013.01 - EP KR); C21D 8/0236 (2013.01 - EP); C21D 8/0247 (2013.01 - EP); C21D 8/10 (2013.01 - EP); C21D 8/105 (2013.01 - EP); C21D 9/08 (2013.01 - EP); C21D 9/46 (2013.01 - EP); C22C 38/00 (2013.01 - EP); C22C 38/001 (2013.01 - EP US); C22C 38/002 (2013.01 - US); C22C 38/02 (2013.01 - EP US); C22C 38/04 (2013.01 - EP US); C22C 38/06 (2013.01 - EP US); C22C 38/42 (2013.01 - EP US); C22C 38/44 (2013.01 - EP KR US); C22C 38/48 (2013.01 - EP US); C22C 38/58 (2013.01 - EP KR US); C21D 2211/001 (2013.01 - US)
Citation (search report)
- [XI] WO 2014030607 A1 20140227 - NIPPON STEEL & SUMITOMO METAL CORP [JP]
- [I] US 2003231976 A1 20031218 - ISEDA ATSURO [JP]
- [A] US 2017029911 A1 20170202 - DAN ETSUO [JP], et al
- [A] US 6338762 B1 20020115 - SATO NAOTO [JP], et al
- [A] JP 2011208269 A 20111020 - NIPPON SEISEN CO LTD
- [A] JP 2012255198 A 20121227 - NIPPON STEEL & SUMITOMO METAL CORP
- [A] US 2012141318 A1 20120607 - OSUKI TAKAHIRO [JP], et al
- [A] US 4960470 A 19901002 - HONKURA YOSHINOBU [JP], et al
- See references of WO 2019054390A1
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 3683324 A1 20200722; EP 3683324 A4 20210303; CA 3075882 A1 20190321; CA 3075882 C 20230110; CN 111094611 A 20200501; JP 6777824 B2 20201028; JP WO2019054390 A1 20200716; KR 102342675 B1 20211223; KR 20200033903 A 20200330; US 2020277680 A1 20200903; WO 2019054390 A1 20190321
DOCDB simple family (application)
EP 18856267 A 20180911; CA 3075882 A 20180911; CN 201880053351 A 20180911; JP 2018033714 W 20180911; JP 2019542074 A 20180911; KR 20207004834 A 20180911; US 201816647312 A 20180911