EP 3401415 A4 20190807 - AUSTENITIC HEAT-RESISTANT ALLOY AND METHOD FOR MANUFACTURING SAME
Title (en)
AUSTENITIC HEAT-RESISTANT ALLOY AND METHOD FOR MANUFACTURING SAME
Title (de)
AUSTENITISCHE WÄRMEBESTÄNDIGE LEGIERUNG UND VERFAHREN ZUR HERSTELLUNG DAVON
Title (fr)
ALLIAGE AUSTÉNITIQUE RÉSISTANT À LA CHALEUR ET PROCÉDÉ POUR LA FABRICATION DE CE DERNIER
Publication
Application
Priority
- JP 2016000375 A 20160105
- JP 2017000056 W 20170104
Abstract (en)
[origin: EP3401415A1] Provided is an austenitic heat resistant alloy having high creep strength and high toughness even in a high temperature environment. This austenitic heat resistant alloy has a chemical composition consisting of: in mass%, C: 0.03 to less than 0.25%, Si: 0.01 to 2.0%, Mn: not more than 2.0%, Cr: 10 to less than 30%, Ni: more than 25 to 45%, Al: more than 2.5 to less than 4.5%, Nb: 0.2 to 3.5%, N: not more than 0.025%, with the balance being Fe and impurities, wherein P and S in the impurities are respectively, P: not more than 0.04% and S: not more than 0.01%. In the structure, a total volume ratio of precipitates having a circle equivalent diameter of not less than 6 µm is not more than 5%.
IPC 8 full level
C21D 6/00 (2006.01); C21D 6/02 (2006.01); C21D 7/13 (2006.01); C21D 8/00 (2006.01); C21D 8/10 (2006.01); C22C 19/05 (2006.01); C22C 30/02 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/42 (2006.01); C22C 38/44 (2006.01); C22C 38/48 (2006.01); C22C 38/50 (2006.01); C22C 38/54 (2006.01); C22C 38/58 (2006.01); C22F 1/00 (2006.01); C22F 1/10 (2006.01)
CPC (source: EP KR US)
C21D 6/004 (2013.01 - EP US); C21D 6/02 (2013.01 - EP US); C21D 7/13 (2013.01 - EP US); C21D 8/00 (2013.01 - EP US); C21D 8/10 (2013.01 - EP US); C22C 19/05 (2013.01 - EP KR US); C22C 19/055 (2013.01 - US); C22C 19/058 (2013.01 - US); C22C 30/00 (2013.01 - EP); C22C 30/02 (2013.01 - KR); C22C 38/001 (2013.01 - EP US); C22C 38/002 (2013.01 - EP US); C22C 38/005 (2013.01 - EP KR US); C22C 38/02 (2013.01 - EP KR US); C22C 38/04 (2013.01 - EP KR US); C22C 38/06 (2013.01 - EP KR 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 US); C22C 38/54 (2013.01 - EP US); C22F 1/00 (2013.01 - EP US); C22F 1/10 (2013.01 - EP KR US); C21D 2211/001 (2013.01 - EP KR US)
Citation (search report)
- [XI] CN 103774056 A 20140507 - UNIV JIANGSU, et al
- [XI] JP S5923855 A 19840207 - NIPPON KOKAN KK
- [XI] CN 104561821 A 20150429 - UNIV JIANGSU
- [A] US 2008304996 A1 20081211 - BRADY MICHAEL P [US], et al
- [A] US 2013266477 A1 20131010 - YAMAMOTO YUKINORI [US], et al
- [A] JP 2004107777 A 20040408 - TOSHIBA CORP
- [A] JP 2003073784 A 20030312 - SUMITOMO ELECTRIC INDUSTRIES
- [A] ZHOU D Q ET AL: "Precipitate characteristics and their effects on the high-temperature creep resistance of alumina-forming austenitic stainless steels", MATERIALS SCIENCE AND ENGINEERING: A, ELSEVIER, AMSTERDAM, NL, vol. 622, 12 November 2014 (2014-11-12), pages 91 - 100, XP029115889, ISSN: 0921-5093, DOI: 10.1016/J.MSEA.2014.11.013
- See references of WO 2017119415A1
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 3401415 A1 20181114; EP 3401415 A4 20190807; CA 3009770 A1 20170713; CN 108474072 A 20180831; JP 6493566 B2 20190403; JP WO2017119415 A1 20180927; KR 102090201 B1 20200423; KR 20180095640 A 20180827; SG 11201805206P A 20180730; US 2019010565 A1 20190110; WO 2017119415 A1 20170713
DOCDB simple family (application)
EP 17735952 A 20170104; CA 3009770 A 20170104; CN 201780005402 A 20170104; JP 2017000056 W 20170104; JP 2017560386 A 20170104; KR 20187020362 A 20170104; SG 11201805206P A 20170104; US 201716067751 A 20170104