Global Patent Index - EP 0823489 B1

EP 0823489 B1 20001102 - AlMgMn alloy product for welded structures with improved corrosion resistance

Title (en)

AlMgMn alloy product for welded structures with improved corrosion resistance

Title (de)

Produkt aus AlMgMn-Legierung für Schweissstrukturen mit verbesserter Korossionsbeständigkeit

Title (fr)

Produit pour construction soudée en alliage AlMgMn à tenue à la corrosion améliorée

Publication

EP 0823489 B1 20001102 (FR)

Application

EP 97420125 A 19970723

Priority

FR 9610085 A 19960806

Abstract (en)

[origin: EP0823489A1] A preformed component for building of welded structures, is made of aluminium alloy containing by weight 3.0-6.5% magnesium, 0.2-1.0% manganese, 0.05-0.6% silicon and less than 0.8% iron and 1.3% zinc, also possibly up to 0.15% chromium and up to 0.30% each of copper, titanium, silver, zirconium and vanadium, with other elements and impurities up to 0.05% each and 0.15% total. It comprises 150-2000, preferably 300-1500, particles per square mm. of Mg2Si of size between 0.5 and 5 microns. Also claimed are a hot-rolled band of the alloy, but containing less than 0.4% Fe, at least 2500, preferably at least 3300 mm. wide, use of the alloy, with up to 0.5% Zn, in naval construction, or with over 0.5% Zn as a coating to protect welded joints in naval construction and use of the alloy in industrial vehicles.

IPC 1-7

C22C 21/08; C22C 21/06; C22F 1/047

IPC 8 full level

C22C 21/06 (2006.01); C22C 21/08 (2006.01); C22F 1/047 (2006.01)

CPC (source: EP US)

C22C 21/06 (2013.01 - EP US); C22C 21/08 (2013.01 - EP US); C22F 1/047 (2013.01 - EP US)

Designated contracting state (EPC)

CH DE DK ES FI FR GB IT LI NL SE

DOCDB simple family (publication)

EP 0823489 A1 19980211; EP 0823489 B1 20001102; EP 0823489 B2 20070822; AU 3320197 A 19980212; AU 709909 B2 19990909; AU 709909 C 20060713; DE 69703420 D1 20001207; DE 69703420 T2 20010510; DE 69703420 T3 20080410; DE 823489 T1 19980716; DK 0823489 T3 20010129; DK 0823489 T4 20080818; ES 2152073 T3 20010116; ES 2152073 T5 20080316; FR 2752244 A1 19980213; FR 2752244 B1 19980918; JP H1088270 A 19980407; US 5908518 A 19990601

DOCDB simple family (application)

EP 97420125 A 19970723; AU 3320197 A 19970806; DE 69703420 T 19970723; DE 97420125 T 19970723; DK 97420125 T 19970723; ES 97420125 T 19970723; FR 9610085 A 19960806; JP 24453597 A 19970806; US 89969197 A 19970725