Short description
This specification covers an aluminum alloy in the form of extruded rods, bars, and profiles (shapes) 0.040 to 4.500 inches (1.02 to 114.30 mm), inclusive, in thickness produced with maximum cross sectional area of 56.1 square inches (36193 mm2) and a maximum circumscribing circle diameter (circle size) of 20.2 inches (513 mm) (see 2.4.1).