Aluminum Alloy, Extrusions, 1.0Mg - 0.60Si - 0.28Cu - 0.20Cr (6061-T4511 or T4510), Solution Heat Treated and Stress Relieved by Stretching AMS4172

AMS4172H results from a Five-Year Review and update of this specification with changes to update wording to prohibit unauthorized exceptions (see 4.4.1 and 8.5), relocate Definitions (see 2.4), and update Applicable Documents (see Section 2) and Hardness (see 8.2).