The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 29, 2005

Filed:

Jun. 01, 2004
Applicants:

Guy-michel Raynaud, Voiron, FR;

Jean-luc Hoffmann, Limoges, FR;

Laurent Cottignies, Poisat, FR;

Georges Pillet, Saint Cassin, FR;

Inventors:

Guy-Michel Raynaud, Voiron, FR;

Jean-Luc Hoffmann, Limoges, FR;

Laurent Cottignies, Poisat, FR;

Georges Pillet, Saint Cassin, FR;

Assignee:

Pechiney Rhenalu, Paris, FR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22C021/06 ;
U.S. Cl.
CPC ...
Abstract

Rolled or extruded products for welded constructions made of AlMgMn type aluminum alloy. These products contain, in % by weight, 3.0<Mg<5.0, 0.75<Mn<1.0, Fe<0.25, Si<0.25, 0.02<Zn<0.40, optionally one or more of the elements Cr, Cu, Ti, Zr such that Cr<0.25, Cu<0.20, Ti<0.20, Zr<0.20, other elements <0.05 each and <0.15 in total, wherein Mn+2Zn>0.75. In the welded state, these products have improved mechanical strength and resistance to fatigue without unfavorable consequences with regard to toughness and corrosion resistance, and are particularly suitable for naval construction, for industrial vehicles and for bicycle frames made of welded tubes.


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