EP 3508602 A1 20190710 - AUSTENITIC STAINLESS STEEL
Title (en)
AUSTENITIC STAINLESS STEEL
Title (de)
AUSTENITISCHER EDELSTAHL
Title (fr)
ACIER INOXYDABLE AUSTÉNITIQUE
Publication
Application
Priority
- JP 2016168596 A 20160830
- JP 2017031157 W 20170830
Abstract (en)
An objective of the present invention is to provide an austenitic stainless steel that is excellent in polythionic acid SCC resistance and also excellent in creep ductility. An austenitic stainless steel according to the present invention includes a chemical composition consisting of, in mass%, C: 0.030% or less, Si: 0.10 to 1.00%, Mn: 0.20 to 2.00%, P: 0.040% or less, S: 0.010% or less, Cr: 16.0 to 25.0%, Ni: 10.0 to 30.0%, Mo: 0.1 to 5.0%, Nb: 0.20 to 1.00%, N: 0.050 to 0.300%, sol.Al: 0.0005 to 0.100%, and B: 0.0010 to 0.0080%, with the balance being Fe and impurities, and satisfying Formula (1):where symbols of elements in Formula (1) are to be substituted by contents of corresponding elements (mass%).
IPC 8 full level
C22C 38/00 (2006.01); C22C 38/58 (2006.01)
CPC (source: EP KR US)
C21D 6/004 (2013.01 - EP); C21D 6/02 (2013.01 - EP); C21D 8/0205 (2013.01 - EP); C21D 8/0226 (2013.01 - EP); C21D 8/0236 (2013.01 - EP); C21D 9/46 (2013.01 - EP); C22C 38/00 (2013.01 - EP US); C22C 38/001 (2013.01 - EP US); C22C 38/002 (2013.01 - EP US); C22C 38/004 (2013.01 - EP); C22C 38/005 (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 US); C22C 38/44 (2013.01 - EP KR US); C22C 38/46 (2013.01 - EP US); C22C 38/48 (2013.01 - EP KR US); C22C 38/52 (2013.01 - EP US); C22C 38/54 (2013.01 - EP US); C22C 38/58 (2013.01 - EP KR US); C21D 2211/001 (2013.01 - KR)
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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3508602 A1 20190710; EP 3508602 A4 20200401; CA 3035162 A1 20180308; CA 3035162 C 20211214; CN 109642291 A 20190416; CN 109642291 B 20210706; JP 6904359 B2 20210714; JP WO2018043565 A1 20190624; KR 102223549 B1 20210305; KR 20190042675 A 20190424; SG 11201901278X A 20190328; US 2019194787 A1 20190627; WO 2018043565 A1 20180308
DOCDB simple family (application)
EP 17846569 A 20170830; CA 3035162 A 20170830; CN 201780052637 A 20170830; JP 2017031157 W 20170830; JP 2018537347 A 20170830; KR 20197008697 A 20170830; SG 11201901278X A 20170830; US 201716328755 A 20170830