This specification covers an aluminum alloy in the form of sheet and plate supplied in the -T861 temper. These products have been used typically for structural parts requiring a combination of high strength and good corrosion resistant and whose fabrication does not involve welding; but usage is not limited to such applications.
SAE AMS4271-2011 history
2013SAE AMS4271A-2013 Aluminum Alloy, Sheet and Plate 4.4Cu 1.5Mg 0.60Mn; (2024-T861) Solution Heat Treated and Cold Worked and Artificially Aged
2011SAE AMS4271-2011 Aluminum Alloy, Sheet and Plate 4.4Cu 1.5Mg 0.60Mn; (2024-T861) Solution Heat Treated and Cold Worked and Artificially Aged