EP 2746414 B1 20191211 - ACID AND ALKALI RESISTANT NI-CR-MO-CU ALLOYS WITH CRITICAL CONTENTS OF CHROMIUM AND COPPER
Title (en)
ACID AND ALKALI RESISTANT NI-CR-MO-CU ALLOYS WITH CRITICAL CONTENTS OF CHROMIUM AND COPPER
Title (de)
SÄURE- UND ALKALIRESISTENTE NI-CR-MO-CU-LEGIERUNGEN MIT KRITISCHEN INHALTEN VON CHROM UND KUPFER
Title (fr)
ALLIAGES NI-CR-MO-CU RÉSISTANTS AUX ACIDES ET ALCALINS DOTÉS DE CONTENUS CRITIQUES DE CHROME ET DE CUIVRE
Publication
Application
Priority
- US 201213719369 A 20121219
- US 201313871405 A 20130426
- US 201314055126 A 20131016
Abstract (en)
[origin: EP2746414A1] A nickel-chromium-molybdenum-copper alloy resistant to 70% sulfuric acid at 93°C and 50% sodium hydroxide at 121°C for acid and alkali neutralization in the field of waste management; the alloy contains, in weight percent, 27 to 33 chromium, 4.9 to 7.8 molybdenum, 3.1 to 6.0 wt.% copper (when chromium is between 30 and 33 wt.%) or 4.7 to 6.0 wt.% copper (when chromium is between 27 and 29.9 wt.%), up to 3.0 iron, 0.3 to 1.0 manganese, 0.1 to 0.5 aluminum, 0.1 to 0.8 silicon, 0.01 to 0.11 carbon, up to 0.13 nitrogen, up to 0.05 magnesium, up to 0.05 rare earth elements, with a balance of nickel and impurities. Titanium or another MC carbide former can be added to enhance thermal stability of the alloy.
IPC 8 full level
C22C 1/04 (2006.01); C22C 19/05 (2006.01); C22F 1/10 (2006.01)
CPC (source: EP)
C22C 1/0433 (2013.01); C22C 19/053 (2013.01); C22C 19/055 (2013.01); C22F 1/10 (2013.01)
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 2746414 A1 20140625; EP 2746414 B1 20191211; DK 2746414 T3 20200316; ES 2774401 T3 20200721
DOCDB simple family (application)
EP 13005102 A 20131025; DK 13005102 T 20131025; ES 13005102 T 20131025