Hydro Aluminium Rolled Products Gmbh

Hydro Aluminum Rolled Products Gmbh

Speira Gmbh

Thomas Hentschel

Henk-Jan Brinkman

Olaf Engler

Eike Brünger

Simon Miller-Jupp

Réginald Dupuis

Olaf Dr Engler

Eike Brunger

Reginald Dupuis

The invention relates to an aluminium alloy strip composed of an AA 5xxx-type aluminium alloy containing at least 4 wt. % of Mg in addition to Al and inevitable impurities. The object of the invention of proposing an aluminium alloy strip in an AlMg aluminium alloy strip which is resistant to intercrystalline corrosion despite having high strength and an Mg content of at least 4 wt. %, is achieved according to a first teaching of the present invention by an aluminium alloy strip that has a recrystallized microstructure, the grain size (GS) of which in &#x3bc;m has the following relation to the Mg content (c_Mg) in wt. % : GS&#x2265;22+2*c_Mg, and wherein the aluminium alloy of the aluminium alloy strip has the composition described herein.

Intercrystalline corrosion-resistant aluminium alloy strip, and method for the production thereof

An aluminium alloy for producing semi-finished products or components for motor vehicles is provided, wherein the alloying components of the aluminium alloy have the following contents in percent by weight: Fe&#x2264;0.80%, Si&#x2264;0.50%, 0.90%&#x2264;Mn&#x2264;1.50%, Mg&#x2264;0.25%, Cu&#x2264;0.125%, Cr&#x2264;0.05%, Ti&#x2264;0.05%, V&#x2264;0.05%, Zr&#x2264;0.05%, the remainder being aluminium, unavoidable impurity elements, individually &#x3c;0.05%, in total &#x3c;0.15%, and the combined content of Mg and Cu satisfies the following relation in percent by weight: 0.15%&#x2264;Mg+Cu&#x2264;0.25%, wherein the Mg content of the aluminium alloy is greater than the Cu content of the aluminium alloy. A method for producing an aluminium alloy strip from such an aluminium alloy and an aluminium alloy strip produced by this method are also provided, as well as uses thereof.

Aluminum alloy for producing semi-finished products or components for motor vehicles, method for producing an aluminium alloy strip from said aluminium alloy, and aluminium alloy strip and uses therefore

The invention relates to an aluminium alloy, the use of an aluminium alloy strip or sheet and a method for producing an aluminium alloy strip or sheet. An aluminium alloy which has only a slight tendency towards intercrystalline corrosion and which at the same time provides high levels of strength and good deformability and which contains standard alloy components so that the recycling of the aluminium alloy is simplified is provided herein.

Aluminium alloy which is resistant to intercrystalline corrosion

An aluminum alloy for the manufacture of semi-finished products or components of motor vehicles, a method for the manufacture of a strip made of an aluminum alloy according to the invention, a corresponding aluminum alloy strip or sheet as well as a structural component of a motor vehicle consisting of an aluminum alloy sheet which includes the following alloy components in % by weight: 0.6%&#x2264;Si&#x2264;0.9%, 0.6%&#x2264;Fe&#x2264;1.0%, Cu&#x2264;0.1%, 0.6%&#x2264;Mn&#x2264;0.9%, 0.5%&#x2264;Mg&#x2264;0.8%, Cr&#x2264;0.05%, the remainder Al and impurities, individually up to a maximum of 0.05% by weight, in total up to a maximum of 0.15% by weight.

Highly formable, medium-strength aluminium alloy for the manufacture of semi-finished products or components of motor vehicles

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Bonn, Germany

Thomas Hentschel