EP 3438306 B1 20210224 - NI-FE-CR ALLOY
Title (en)
NI-FE-CR ALLOY
Title (de)
NI-FE-CR-LEGIERUNG
Title (fr)
ALLIAGE NI-FE-CR
Publication
Application
Priority
- JP 2016070797 A 20160331
- JP 2016089088 W 20161228
Abstract (en)
[origin: EP3438306A1] An objective of the present invention is to provide a Ni-Fe-Cr alloy having an excellent intergranular corrosion resistance. A Ni-Fe-Cr alloy of the present embodiment has a chemical composition consisting of, in mass percent, C: 0.005 to 0.015%, Si: 0.05 to 0.50%, Mn: 0.05 to 1.5%, P: 0.030% or less, S: 0.020% or less, Cu: 1.0 to 5.0%, Ni: 30.0 to 45.0%, Cr: 18.0 to 30.0%, Mo: 2.0 to 4.5%, Ti: 0.5 to 2.0%, N: 0.001 to 0.015%, and Al: 0 to 0.50%, with the balance being Fe and impurities. An average grain size d (µm) satisfies Formula (1): d < 4.386 / C rel + 0.15 where, C rel in Formula (1) is defined by Formula (2): C rel = C ˆ’ 0.125 ¢ Ti + 0.8571 ¢ N where, symbols of elements in Formula (1) and Formula (2) are to be substituted by contents of corresponding elements (mass%).
IPC 8 full level
C22C 38/00 (2006.01); C22C 38/50 (2006.01)
CPC (source: EP KR US)
C22C 30/02 (2013.01 - EP KR US); C22C 38/00 (2013.01 - EP US); C22C 38/50 (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
DOCDB simple family (publication)
EP 3438306 A1 20190206; EP 3438306 A4 20191218; EP 3438306 B1 20210224; CA 3018312 A1 20171005; CA 3018312 C 20200310; CN 109072365 A 20181221; ES 2865379 T3 20211015; JP 6579263 B2 20190925; JP WO2017168904 A1 20181227; KR 20180125566 A 20181123; SG 11201807433R A 20180927; US 2019100826 A1 20190404; WO 2017168904 A1 20171005
DOCDB simple family (application)
EP 16897119 A 20161228; CA 3018312 A 20161228; CN 201680084233 A 20161228; ES 16897119 T 20161228; JP 2016089088 W 20161228; JP 2018508400 A 20161228; KR 20187030813 A 20161228; SG 11201807433R A 20161228; US 201616089395 A 20161228