Product for a welded construction made of AlMgMn alloy having improved mechanical strength

摘要

Rolled or extruded products for welded constructions are made of an aluminum-magnesium-manganese type aluminum alloy, consisting essentially of, by weight:3.0<Mg<5.00.5<Mn<1.0Fe<0.25Si<0.25Zn<0.40Cr<0.25Cu<0.20Ti<0.20Zr<0.20The product has a volumetric fraction of Mn containing dispersoids grater than 1.2%.