This specification covers an aluminum alloy in the form of extruded bars, rods, wire, profiles 5.000 inches (127.00 mm) and under in nominal diameter or thickness and 32 in² (206 cm²) and under in cross-sectional area, and tubing 3.000 inches (76.20 mm) and under in wall thickness and 20 in² (129 cm²) and under in cross-sectional area (see 8.5).