Static strength properties in 7xxx aluminium forgings generally show three more or less pronounced characteristics, namely anisotropy, thickness dependency, and loss of tensile yield strength due to cold compression. The first one is mainly driven by grain morphology and crystallographic texture, both originating from the thermo-mechanical forming process. The relevant interrelations are complex and well beyond the scope of this paper. The second one, thickness dependency, is a direct result of the alloy’s quench sensitivity and is studied based on Jominy-end-quench-tests. Characteristic results for two different 7xxx-alloys are shown, and briefly discussed. The third aspect, effect of cold compression, is studied based on a series of tensile tests comprising different degrees of cold compression, and ageing times. It is shown that a kind of nearly constant kinematic hardening effect exists for cold compression degrees of 1% to 4%.