This specification covers an aluminum alloy in the form of plate from 0.250 to 1.500 inches (6.35 to 38.10 mm) in thickness (see 8.6). This plate has been used typically for structural applications requiring plate with high strength, moderate fatigue strength, and high fracture-toughness, but usage is not limited to such applications.
Rationale: AMS4090H results from a Five-Year Review and update of this specification. This standard is being reviewed as part of the SAE Five-Year Review policy. The committee will look at possible changes to ordering information and other potential updates throughout the standard.
