EP 2703508 B1 20160330 - Aluminium alloy resistant to intercrystalline corrosion
Title (en)
Aluminium alloy resistant to intercrystalline corrosion
Title (de)
Gegen interkristalline Korrosion beständige Aluminiumlegierung
Title (fr)
Alliages d'aluminium résistant à la corrosion intercristalline
Publication
Application
Priority
EP 12182038 A 20120828
Abstract (en)
[origin: EP2703508A1] An aluminum alloy comprises 2.91-4.5 wt.% magnesium, 0.5-0.8 wt.% manganese, 0.05-0.3 wt.% copper, 0.05-0.3 wt.% chromium, 0.05-0.9 wt.% zinc, 0.4 wt.% or less iron, 0.25 wt.% or less silicon, 0.2 wt.% or less titanium, remainder of aluminum, and unavoidable impurities. The content of zinc, chromium, copper, manganese and magnesium is 0.05-0.15 wt.%. An aluminum alloy comprises 2.91-4.5 wt.% magnesium, 0.5-0.8 wt.% manganese, 0.05-0.3 wt.% copper, 0.05-0.3 wt.% chromium, 0.05-0.9 wt.% zinc, 0.4 wt.% or less iron, 0.25 wt.% or less silicon, 0.2 wt.% or less titanium, remainder of aluminum, and unavoidable impurities. The content of zinc, chromium, copper, manganese and magnesium is 0.05-0.15 wt.%, and satisfies the relation: (2.3x %Zn+1.25x %Cr+0.65x %Cu+0.05x %Mn)+2.4>= %Mg. Independent claims are included for the following: (1) use of aluminum alloy; and (2) manufacture of aluminum alloy strip and sheet.
IPC 8 full level
C22C 21/06 (2006.01); C22F 1/047 (2006.01)
CPC (source: CN EP RU US)
C22C 21/06 (2013.01 - CN EP RU US); C22C 21/08 (2013.01 - CN EP US); C22F 1/047 (2013.01 - CN 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 2703508 A1 20140305; EP 2703508 B1 20160330; CA 2882613 A1 20140206; CA 2882613 C 20161011; CN 104797727 A 20150722; CN 104797727 B 20181123; ES 2569664 T3 20160512; JP 2015532680 A 20151112; JP 5908178 B2 20160426; KR 101644584 B1 20160801; KR 20150070119 A 20150624; RU 2015111238 A 20161027; RU 2634822 C2 20171103; US 10113222 B2 20181030; US 2015152537 A1 20150604; US 2017152589 A9 20170601; WO 2014033048 A1 20140306
DOCDB simple family (application)
EP 12182038 A 20120828; CA 2882613 A 20130822; CN 201380045479 A 20130822; EP 2013067481 W 20130822; ES 12182038 T 20120828; JP 2015528968 A 20130822; KR 20157007982 A 20130822; RU 2015111238 A 20130822; US 201514617469 A 20150209