This specification covers an aluminum alloy in the form of extruded bars, rods, shapes (profiles), and tubing 0.250 to 3.000 inches, incl (6.35 to 76.20 mm) in nominal diameter, least thickness or nominal wall thickness (see 8.5).
Rationale: AMS4331B 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.
