Alcoa Sheet Alloys 2060 and 2029 for Airplane Fuselage Skins

Alcoa alloys 2060 and 2029 are of the Al-Cu-Mg family and have been developed for sheet and thin plate products to be used for airplane fuselage skins.  Alloy 2060-T8E30 is a Li-containing alloy that exhibits higher strength, higher toughness, improved fatigue crack growth resistance and lower density compared to the incumbent alloy Alclad 2524-T3.  In addition to other product attributes, the superior corrosion resistance is a factor that should be recognized when considering 2060 in aircraft designs.  Alloy 2029 is a non-Li containing alloy that provides higher strength and toughness compared to Alclad 2524-T3.  The corrosion resistance is significantly improved compared to 2524 and it has been produced as both a bare and clad product.  Alloy 2029 may provide cost effective solutions for airplane fuselage skin applications.