Abstract: The invention relates to the use of a wrought aluminum alloy in a T8 temper with the following composition, in wt %, Cu: 3.6-4.4; Mg: 1.2-1.4; Mn: 0.5-0.8; Zr:?0.15; Ti: 0.01-0.15; Si?0.20; Fe?0.20; Zn?0.25 other elements<0.05; the remainder being aluminum, in an application in which the product is kept at temperatures of between 80° C. and 250° C. for a significant period of at least 200 hours. The products intended for the use according to the invention are particularly useful in an application such as a rotor or another component of an air suction pump such as, in particular, a vacuum pump.

Abstract: The invention relates to a thin sheet metal for a reinforcing or structural part of a car body, consisting of an aluminum alloy. The invention also relates to the method for producing such a sheet metal and to the use of such a sheet metal for producing a reinforcing or structural part for a car body. The sheet metals according to the invention advantageously have a modulus of elasticity of at least 77 GPa.

Abstract: The invention relates to extruded products suitable for turning, made from aluminium alloy with a composition (in weight %) of: 0.4-0.8 Si; 0.8-1.2 Mg; 0.20-0.4 Cu; 0.05-0.4 Fe; Mn?0.10; Ti<0.15; Cr?0.10; Bi?0.8; Pb?0.4; other elements <0.05 each and <0.15 remainder being aluminium, characterised in that the granular structure thereof is essentially recrystallized. The invention also relates to the method for the production of said products. The invention further relates to anodised turned mechanical parts obtained from extruded products according to the invention and to the production method thereof. The products of the invention are particularly suitable for the production of brake pistons and gearbox elements.

Abstract: A wrought aluminium alloy product having the following chemical composition, expressed in wt %: 1.3%?Si?12%, 1.35%?Fe?1.8% wherein the total Fe+Si content is higher than 3.4%, preferably 3.6%; 0.15%?Cu?6%; 0.6%?Mg?3%; optionally, one or more of the following elements: Mn?1%; Cr?0.25%; Ni?3%; Zn?1%; Ti?0.1%; Bi?0.7%; In?0.7%; Sn?0.7%; other elements <0.05% each and 0.15% in total; and the balance aluminium.

Abstract: The invention relates to a method for the production of a mechanical part, comprising the following successive steps: casting of a billet of aluminum alloy with a composition (in weight %) of 0.4-3.0 Si; 0.6-2.0 Mg; 0.20-1.0 Cu; 0.15-1.8 Fe; Mn<0.5; Ni<1; Ti<0.15; Cr<0.35; Bi<0.8; Pb<0.4; Zr<0.04; other elements <0.05 each and <0.

Abstract: The invention relates to a thin sheet metal for a reinforcing or structural part of a car body, consisting of an aluminium alloy of the following composition, in weight per cent: Si: 10-14; Mg: 0.05-0.8; Cu: 0-0.2; Fe: 0-0.5; Mn: 0-0.5; optionally at least one element selected from Na, Ca, Sr, Ba, Yt and Li, the quantity of said element if selected being between 0.01 and 0.05 for Na, Ca, Sr, Ba and Yt and between 0.1 and 0.3 for Li; Sb: 0-0.05; Cr: 0-0.1; Ti: 0-0.2; other elements amounting to <0.05 each and a total of <0.15; and the remainder being aluminium. The invention also relates to the method for producing such a sheet metal and to the use of such a sheet metal for producing a reinforcing or strucural part for a car body. The sheet metals according to the invention advantageously have a modulus of elasticity of at least 77 GPa.

Abstract: The invention relates to extruded products suitable for turning, made from aluminium alloy with a composition (in weight %) of: 0.4-0.8 Si; 0.8-1.2 Mg; 0.20-0.4 Cu; 0.05-0.4 Fe; Mn::S 0.10; Ti<0.15; Cr::SO. IO; Bi::S 0.8; Pb::S 0.4; other elements <0.05 each and <0.15 remainder being aluminium, characterised in that the granular structure thereof is essentially recrystallised. The invention also relates to the method for the production of said products. The invention further relates to anodised turned mechanical parts obtained from extruded products according to the invention and to the production method thereof. The products of the invention are particularly suitable for the production of brake pistons and gearbox elements.

Abstract: The invention relates to a method for the production of a mechanical part, comprising the following successive steps: casting of a billet of aluminium alloy with a composition (in weight %) of 0.4-3.0 Si; 0.6-2.0 Mg; 0.20-1.0 Cu; 0.15-1.8 Fe; Mn<0.5; Ni<1; Ti<0.15; Cr<0.35; Bi<0.8; Pb<0.4; Zr<0.04; other elements <0.05 each and <0.

Abstract: A wrought aluminium alloy product having the following chemical composition, expressed in wt %: 1.3%?Si?12%, 1.35%?Fe?1.8% wherein the total Fe+Si content is higher than 3.4%, preferably 3.6%; 0.15%?Cu?6%; 0.6%?Mg?3%; optionally, one or more of the following elements: Mn?1%; Cr?0.25%; Ni?3%; Zn?1%; Ti?0.1%; Bi?0.7%; In?0.7%; Sn?0.7%; other elements <0.05% each and 0.15% in total; and the balance aluminium.