EP 3438304 A4 20191218 - Cr-BASED TWO-PHASE ALLOY AND PRODUCT THEREOF
Title (en)
Cr-BASED TWO-PHASE ALLOY AND PRODUCT THEREOF
Title (de)
CR-BASIERTE ZWEIPHASIGE LEGIERUNG UND PRODUKT DARAUS
Title (fr)
ALLIAGE BIPHASÉ À BASE DE CHROME ET SON PRODUIT
Publication
Application
Priority
- JP 2016067032 A 20160330
- JP 2017003081 W 20170130
Abstract (en)
[origin: EP3438304A1] An object of the invention is to provide a two-phase alloy which contains inexpensive Cr as a main component, and which is superior in strength properties including corrosion resistance and toughness, and in abrasion resistance to conventional ones under a high corrosion circumstance such as in an oil well. The invention is a Cr based two-phase alloy including two phases of a ferrite phase and an austenite phase in a mixed state, in which a chemical composition of the Cr based two-phase alloy consists of a major component, an accessory component, impurities, a first optional accessory component, and a second optional accessory component, and the major component consists of 33% by mass or more and 65% by mass or less of Cr, 18% by mass or more and 40% by mass or less of Ni, and 10% by mass or more and 33% by mass or less of Fe.
IPC 8 full level
C22C 27/06 (2006.01); B22D 21/02 (2006.01); B22F 1/00 (2022.01); C22C 30/02 (2006.01)
CPC (source: EP US)
B22D 21/02 (2013.01 - EP US); B22F 1/00 (2013.01 - EP US); C22C 27/06 (2013.01 - EP US); C22C 30/02 (2013.01 - EP US); B22D 21/022 (2013.01 - EP US); C22F 1/18 (2013.01 - EP US)
Citation (search report)
- [A] EP 2883630 A1 20150617 - NIPPON STEEL & SUMITOMO METAL CORP [JP]
- [A] JP 2006152412 A 20060615 - MITSUBISHI HEAVY IND LTD
- [A] JP H11302801 A 19991102 - SUMITOMO METAL IND
- [A] US 5543109 A 19960806 - SENBA HIROYUKI [JP], et al
- [A] JP H0770681 A 19950314 - SUMITOMO METAL IND
- [A] US 5695716 A 19971209 - KOEHLER MICHAEL [DE], et al
- See references of WO 2017169056A1
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 3438304 A1 20190206; EP 3438304 A4 20191218; EP 3438304 B1 20210414; CN 108884529 A 20181123; CN 108884529 B 20210820; ES 2866903 T3 20211020; JP 6602463 B2 20191106; JP WO2017169056 A1 20180927; US 2019071754 A1 20190307; WO 2017169056 A1 20171005
DOCDB simple family (application)
EP 17773605 A 20170130; CN 201780019996 A 20170130; ES 17773605 T 20170130; JP 2017003081 W 20170130; JP 2018508462 A 20170130; US 201716084299 A 20170130