AMS4115K Aluminum Alloy, Rolled or Cold-Finished, Bars, Rods, Wire, and Flash Welded Rings and Stock for Flash Welded Rings Annealed 1.0Mg - 0.60Si - 0.28Cu - 0.20Cr (6061-O)

AMS4115K is the result of a Five-Year Review and update of this specification with changes to prohibit unauthorized exceptions (3.6, 8.6), add 5D elongation for SI unit testing (Table 2, Table 3, 8.4) and allow use of immediate prior revision (8.5) and updates to References (2.1, 2.3), Condition (3.2), Response to Heat Treatment (3.3.2.1, 3.3.2.2), Reporting (3.3.2.4, 4.4.1), and Identification (5.1.1.1).