This specification covers an aluminum alloy in the form of extruded bars, rods, and profiles (shapes) produced with cross sectional area of 22.5 square inches (145 cm 2x) maximum and a circumscribing circle diameter (circle size) of 17.4 inches (44.2 cm) maximum. See 8.3 for definition of circumscribing circle size.
| SAE International | |
|---|---|
| Product Category | Standards and Technical Documents |
| Product Number | AMS4459A |
| Product Name | Aluminum Alloy, Extrusion 2.7Cu - 1.8Li - 0.7Zn - 0.3Mn - 0.3Mg - 0.08Zr (2099-T81) Solution Heat Treated, Stress Relieved by Stretching 1 to 3% and Aged |