EP 3495526 A4 20200108 - AUSTENITIC STAINLESS STEEL
Title (en)
AUSTENITIC STAINLESS STEEL
Title (de)
AUSTENITISCHER EDELSTAHL
Title (fr)
ACIER INOXYDABLE AUSTÉNITIQUE
Publication
Application
Priority
- JP 2016152690 A 20160803
- JP 2017028146 W 20170802
Abstract (en)
[origin: EP3495526A1] An austenitic stainless steel includes base metal and a coating film formed on at least part of a surface of the base metal, a chemical composition of the base metal containing, in mass percent: C: 0.05% or less; Si: 1.0% or less; Mn: 2.0% or less; P: 0.040% or less; S: 0.010% or less; O: 0.020% or less; N: less than 0.050%; Ni: 12.0 to 27.0%; Cr: 15.0% or more to less than 20.0%; Cu: more than 3.5% to 8.0% or less; Mo: more than 2.0% to 5.0% or less; Co: 0.05% or less; Sn: 0.05% or less, V: 0 to 0.5%, Nb: 0 to 1.0%, Ti: 0 to 0.5%, W: 0 to 5.0%, Zr: 0 to 1.0%, Al: 0 to 0.5%, Ca: 0 to 0.01%, B: 0 to 0.01%, REM: 0 to 0.01%, and the balance: Fe and impurities, wherein a chemical composition at a maximum-Cr depth where a concentration of Cr in the coating film reaches a maximum satisfies, in at%, [(Cr + Ni + Cu + Mo) / Fe ≥ 1.0].
IPC 8 full level
C21D 1/76 (2006.01); C21D 6/00 (2006.01); C22C 38/00 (2006.01); C22C 38/58 (2006.01)
CPC (source: EP KR US)
C21D 1/76 (2013.01 - KR); C21D 6/00 (2013.01 - KR); 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); C22C 38/00 (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 38/42 (2013.01 - EP KR US); C22C 38/44 (2013.01 - EP KR 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); C22C 38/54 (2013.01 - EP US); C22C 38/58 (2013.01 - EP KR US); C22C 38/60 (2013.01 - KR); C21D 1/76 (2013.01 - EP US); C21D 6/00 (2013.01 - EP US); C21D 2211/001 (2013.01 - EP KR US)
Citation (search report)
- [I] EP 0971045 A1 20000112 - SUMITOMO METAL IND [JP]
- [A] EP 0155011 A2 19850918 - INCO ALLOYS INT [US]
- See references of WO 2018025942A1
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 3495526 A1 20190612; EP 3495526 A4 20200108; CA 3032772 A1 20180208; CN 109563589 A 20190402; CN 109563589 B 20201106; JP 6724991 B2 20200715; JP WO2018025942 A1 20190606; KR 20190034286 A 20190401; US 2019177808 A1 20190613; WO 2018025942 A1 20180208
DOCDB simple family (application)
EP 17837044 A 20170802; CA 3032772 A 20170802; CN 201780048557 A 20170802; JP 2017028146 W 20170802; JP 2018531964 A 20170802; KR 20197005733 A 20170802; US 201716322228 A 20170802