SAE AMS 4459A

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 cmu2) maximum and a circumscribing circle diameter (circle size) of 17.4 inches (44.2 cm) maximum.

This product replaces:SAE AMS 4459 - Aluminum Alloy, Extrusion 2.7Cu 1.8Li 0.7Zn 0.3Mn 0.3Mg 0.08Zr (2099-T81) Solution Heat Treated, Stress Relived by Stretching 1 to 3% and Aged