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SAE AMS4040
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SAE AMS4040 Revision P, February 1, 2018
Aluminum Alloy, Sheet and Plate, Alclad 4.4Cu - 1.5Mg - 0.60Mn (2024-O with
1 ½% Alclad); Annealed
Description / Abstract:
Form This specification covers an aluminum alloy in the form of sheet and plate, alclad two sides, 0.188 to 1.750 inch (4.775 to 44.450 mm) inclusive, in thickness, supplied in the annealed (O) condition (see 8.5).
Supersession Notice
Requirements for thin gage sheet (0.008 to 0.187 inch) in accordance with AMS4040 are superseded by AMS4461. AMS-QQ-A-250/5 and AMS4461 have the same requirements for alclad thickness and tensile properties for material less than 0.187 inch in thickness.
AMS4040 covers alclad material for sheet in thicknesses of 0.188 inches (4.775 mm) and greater, and plate up to 1.750 inches (44.450 mm), inclusive. The cladding thickness is minimized to provide a commensurate increase in tensile properties for this alclad reduction. Use of this product is not recommended without proper evaluation of corrosion resistance.
Application
These products have been used typically for formed structural parts which will be subsequently heat treated, but usage is not limited to such applications.
Certain design and processing procedures may cause these products to become susceptible to stress-corrosion cracking after heat treatment; ARP823 recommends practices to minimize such conditions.
Supersession Notice
Requirements for thin gage sheet (0.008 to 0.187 inch) in accordance with AMS4040 are superseded by AMS4461. AMS-QQ-A-250/5 and AMS4461 have the same requirements for alclad thickness and tensile properties for material less than 0.187 inch in thickness.
AMS4040 covers alclad material for sheet in thicknesses of 0.188 inches (4.775 mm) and greater, and plate up to 1.750 inches (44.450 mm), inclusive. The cladding thickness is minimized to provide a commensurate increase in tensile properties for this alclad reduction. Use of this product is not recommended without proper evaluation of corrosion resistance.
Application
These products have been used typically for formed structural parts which will be subsequently heat treated, but usage is not limited to such applications.
Certain design and processing procedures may cause these products to become susceptible to stress-corrosion cracking after heat treatment; ARP823 recommends practices to minimize such conditions.
SAE AMS4040 Revision P, February 1, 2018
Aluminum Alloy, Sheet and Plate, Alclad 4.4Cu - 1.5Mg - 0.60Mn (2024-O with
1 ½% Alclad); Annealed