EP 2662461 A1 20131113 - Iron-chromium-manganese-nickel alloy
Title (en)
Iron-chromium-manganese-nickel alloy
Title (de)
Eisen-Chrom-Mangan-Nickel-Legierung
Title (fr)
Alliage fer-chrome-manganèse-nickel
Publication
Application
Priority
EP 12167011 A 20120507
Abstract (en)
Nickel-chromium-manganese alloy comprises 0.005-0.07 wt.% of carbon, 20.5-23 wt.% of chromium, 0.05-1.5 wt.% of silicon, 1.5-6 wt.% of manganese, 1.7-3 wt.% of nickel, 0.15-0.30 wt.% of nitrogen, 0.1-0.8 wt.% of molybdenum, 0.05-4.5 wt.% of copper, up to 0.3 wt.% of cobalt, up to 0.04 wt.% of phosphorus, up to 0.04 wt.% of sulfur, up to 0.2 wt.% of niobium, up to 0.2 wt.% of vanadium, up to 0.2 wt.% of zirconium, up to 0.2 wt.% of tungsten, up to 0.2 wt.% of tantalum, up to 0.1 wt.% of lead, up to 0.1 wt.% of bismuth, up to 0.1 wt.% of tin, and up to 0.1 wt.% of zinc. Nickel-chromium-manganese alloy comprises 0.005-0.07 wt.% of carbon, 20.5-23 wt.% of chromium, 0.05-1.5 wt.% of silicon, 1.5-6 wt.% of manganese, 1.7-3 wt.% of nickel, 0.15-0.30 wt.% of nitrogen, 0.1-0.8 wt.% of molybdenum, 0.05-4.5 wt.% of copper, up to 0.3 wt.% of cobalt, up to 0.04 wt.% of phosphorus, up to 0.04 wt.% of sulfur, up to 0.2 wt.% of niobium, up to 0.2 wt.% of vanadium, up to 0.2 wt.% of zirconium, up to 0.2 wt.% of tungsten, up to 0.2 wt.% of tantalum, up to 0.1 wt.% of lead, up to 0.1 wt.% of bismuth, up to 0.1 wt.% of tin, up to 0.1 wt.% of zinc, up to 0.1 wt.% of selenium, up to 0.1 wt.% of arsenic, up to 0.1 wt.% of titanium, up to 0.05 wt.% of % aluminum, up to 0.05 wt.% of calcium, up to 0.05 wt.% of magnesium, up to 0.05 wt.% of barium, up to 0.05 wt.% of lanthanum, up to 0.05 wt.% of cerium, up to 0.05 wt.% of yttrium, up to 0.05 wt.% of rhenium, up to 0.05 wt.% of oxygen, up to 0.05 wt.% of boron and balance iron including impurities caused by smelting. Independent claims are included for: (1) a component made from the alloy, having at least one mechanical properties at room temperature, where the mechanical properties have >= 420 N/mm 2> of proof stress (0.2%), a tensile strength of >= 620 N/mm 2>, an elongation of greater 20%, and a notched impact strength of >= 60J; (2) method-I for preparing the alloy, comprising melting the alloy constituents in an induction furnace and then deoxidizing by pan aggregates; and (3) method-II for producing the component, comprising performing the method for producing a cast alloy, and casting the component.
Abstract (de)
Nickel-Chrom-Mangan-Legierung mit 0,005 bis 0,07 Gew% Kohlenstoff, 20,5 bis 23,0 Gew% Chrom, 0,05 bis 1,5 Gew% Silizium, 1,5 bis 6,0 Gew% Mangan, 1,7 bis 3,0 Gew% Nickel, 0,15 bis 0,30 Gew% Stickstoff, 0,1 bis 0,8 Gew% Molybdän, 0,05 bis 4,5 Gew% Kupfer, bis 0,3 Gew% Kobalt, bis 0,04 Gew% Phosphor, bis 0,04 Gew% Schwefel, bis 0,2 Gew% Niob, bis 0,2 Gew% Vanadium, bis 0,2 Gew% Zirkonium, bis 0,2 Gew% Wolfram, bis 0,2 Gew% Tantal, bis 0,1 Gew% Blei, bis 0,1 Gew% Bismut, bis 0,1 Gew% Zinn, bis 0,1 Gew% Zink, bis 0,1 Gew% Selen, bis 0,1 Gew% Arsen, bis 0,1 Gew% Titan, bis 0,05 Gew% Aluminium, bis 0,05 Gew% Calicum, bis 0,05 Gew% Magnesium, bis 0,05 Gew% Barium, bis 0,05 Gew% Lanthan, bis 0,05 Gew% Cer, bis 0,05 Gew% Yttrium, bis 0,05 Gew% Rhenium, bis 0,05 Gew% Sauerstoff, bis 0,05 Gew% Bor, Rest Eisen einschließlich erschmelzungsbedingter Verunreinigungen.
IPC 8 full level
C21D 6/00 (2006.01); C21D 8/00 (2006.01); C22C 1/02 (2006.01); C22C 38/42 (2006.01); C22C 38/44 (2006.01); C22C 38/58 (2006.01)
CPC (source: EP)
C21C 7/068 (2013.01); C21D 1/28 (2013.01); C21D 6/004 (2013.01); C21D 6/005 (2013.01); C22C 1/02 (2013.01); C22C 33/04 (2013.01); C22C 38/001 (2013.01); C22C 38/02 (2013.01); C22C 38/06 (2013.01); C22C 38/42 (2013.01); C22C 38/44 (2013.01); C22C 38/58 (2013.01); C21D 2211/001 (2013.01); C21D 2211/005 (2013.01)
Citation (applicant)
- EP 1327008 B1 20060215 - OUTOKUMPU STAINLESS AB [SE]
- US 6096441 A 20000801 - HAUSER JEAN-MICHEL [FR], et al
- US 3736131 A 19730529 - ESPY R H
Citation (search report)
- [XI] EP 2258885 A1 20101208 - NIPPON STEEL & SUMIKIN SST [JP]
- [X] US 2624670 A 19530106 - BINDER WILLIAM O, et al
- [XD] FR 2119612 A5 19720804 - ARMCO STEEL CORP
- [AD] EP 1327008 B1 20060215 - OUTOKUMPU STAINLESS AB [SE]
- [A] WESSMAN S M ET AL: "On the effect of nickel substitution in duplex stainless steel", MATERIALS SCIENCE AND TECHNOLOGY, MANEY PUBLISHING, GB, vol. 24, no. 3, 1 March 2008 (2008-03-01), pages 348 - 355, XP008154661, ISSN: 0267-0836, DOI: 10.1179/174328408X276116
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)
DOCDB simple family (application)
EP 12167011 A 20120507