This datasheet provides information on key alloy metallurgy, processing effects on physical and mechanical properties, fabrication characteristics, and applications of high-strength structural alloy 7050.

This datasheet provides information on composition limits for aluminum alloys 7150 and 7050, and processing effects on mechanical properties of alloy 7150-T7751 plate and 7150-T77511 extrusions.

Wrought heat treatable 7xxx alloys are more responsive to precipitation hardening than the 2xxx series alloys and can achieve higher strength levels, approaching tensile strengths of 690 MPa (100 ksi). This article provides an overview of key metallurgy, properties, and applications of the 7xxx aluminum alloy. It also illustrates the natural aging characteristics of 7050 aluminum sheet alloys at room temperature and relationships among commonly used alloys in the 7xxx series.

Alloy 2099 is a third-generation Al-Cu-Li alloy providing an improved combination of strength, elastic modulus, and fatigue crack growth resistance. This datasheet provides information on its key alloy metallurgy and the effects of processing on its mechanical properties.

The presence of macroscopic residual stresses in heat treatable aluminum alloys can give rise to machining distortion, dimensional instability, and increased susceptibility to in-service fatigue and stress-corrosion cracking. This article details the residual-stress magnitudes and distributions introduced into aluminum alloys by thermal operations associated with heat treatment. The available technologies by which residual stresses in aluminum alloys can be relieved are also described. The article shows why thermal stress relief is not a feasible stress-reduction technology for precipitation-hardened alloys. It examines the consequences of aging treatments on the residual stress, namely, annealing, precipitation heat treatment, and cryogenic treatment. The article provides information on uphill quenching, which attempts to reverse thermal gradients encountered during quenching. It examines how quench-induced residual stresses in heat treatable aluminum alloys are reduced when sufficient load is applied to cause plastic deformation. The article also shows how plastic deformation reduces residual stress.

This article provides an overview of fatigue and fracture resistance of aluminum alloys. It discusses the characteristics of aluminum alloy classes and the fracture mechanics of aluminum alloys. The article tabulates relative stress-corrosion cracking ratings for high-strength wrought aluminum products. It analyzes the selection of various alloys for stress-corrosion cracking resistance, including aluminum-lithium alloys, copper-free 7XXX alloys, and casting alloys. The article presents a list of typical tensile properties and fatigue limit of aluminum alloys. It also describes the effects of composition, microstructure, thermal treatments, and processing in fatigue crack growth of aluminum alloys.

This datasheet provides information on composition limits, fabrication characteristics, processing effects on physical and mechanical properties, and application performance of thick plate and forging alloy 7085. It presents the specified minimum strength and fracture properties for plate, die, and hand forgings. The datasheet provides a comparison of the strength, fracture toughness, and fatigue crack growth resistance of alloy 7085 plate with those of the legacy plate alloy 7050. It shows tensile yield and ultimate strength at elevated temperature for various temperatures and exposure times for 7085-T7452 die forgings.