EP 3211107 A1 20170830 - TWO-PHASE STAINLESS STEEL AND PRODUCTION METHOD THEREFOR
Title (en)
TWO-PHASE STAINLESS STEEL AND PRODUCTION METHOD THEREFOR
Title (de)
ZWEIPHASIGER EDELSTAHL UND HERSTELLUNGSVERFAHREN DAFÜR
Title (fr)
ACIER INOXYDABLE À DEUX PHASES ET SON PROCÉDÉ DE PRODUCTION
Publication
Application
Priority
- JP 2014217632 A 20141024
- JP 2015079962 W 20151023
Abstract (en)
A duplex stainless steel is provided that has a chemical composition comprising, by mass%, C: 0.03% or less, Si: 1.0% or less, Mn: 1.0% or less, P: 0.04% or less, S: 0.01% or less, Cu: 0.1 to 1.0%, Ni: 5.0 to 7.5%, Cr: 22.0 to 26.0%, W: 6.0 to 12.0%, N: 0.20 to 0.32%, Mo: 0.01% or less, and a balance: Fe and impurities, in which a metal micro-structure contains, by area ratio, 0.40 to 0.60 of an ±,-phase, with a balance being a ³-phase and 0.01 or less of other phases.
IPC 8 full level
C22C 38/42 (2006.01); C21D 6/00 (2006.01); C21D 8/00 (2006.01); C21D 8/02 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/44 (2006.01)
CPC (source: EP US)
C21D 6/004 (2013.01 - EP US); C21D 6/005 (2013.01 - US); C21D 6/008 (2013.01 - US); C21D 8/005 (2013.01 - EP US); C21D 8/0226 (2013.01 - EP US); C21D 8/0263 (2013.01 - EP US); C22C 30/02 (2013.01 - US); C22C 38/00 (2013.01 - EP US); 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 38/42 (2013.01 - EP US); C22C 38/44 (2013.01 - EP US); C21D 8/0205 (2013.01 - EP US); C21D 8/0247 (2013.01 - EP US); C21D 2211/001 (2013.01 - EP US); C21D 2211/004 (2013.01 - EP US); C21D 2211/005 (2013.01 - EP US)
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 3211107 A1 20170830; EP 3211107 A4 20180509; CN 107075639 A 20170818; CN 107075639 B 20190927; JP 5962878 B1 20160803; JP WO2016063974 A1 20170427; US 2017327915 A1 20171116; WO 2016063974 A1 20160428
DOCDB simple family (application)
EP 15852926 A 20151023; CN 201580057001 A 20151023; JP 2015079962 W 20151023; JP 2016504412 A 20151023; US 201515519845 A 20151023