Abstract: The invention concerns an aluminum extruded product as feedstock for forging comprising in weight percent Si: 0.6% to 1.4%, Fe: 0.01% to 0.15%, Cu: 0.05% to 0.60%, Mn: 0.4% to 1%, Mg: 0.4% to 1.2%, Cr: 0.05% to 0.25%, Zn?0.2%, Ti?0.1%, Zr?0.05%, the rest being aluminium and unavoidable impurities having a content of less than 0.05% each, total being less than 0.15%, wherein the number density of Mn containing dispersed particles is at least equal to 2.5 particles per ?m2, preferably 3.0 particles per ?m. The invention also concerns the process to obtain the aluminum extruded product as feedstock for forging.

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.