Alclad Aluminum 2024-T4, T351

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Alclad Aluminum 2024-T4, T351
Categories:	Metal; Nonferrous Metal; Aluminum Alloy; 2000 Series Aluminum Alloy
Material Notes:	General 2024 characteristics and uses (from Alcoa): Good machinability and surface finish capabilities. A high strength material of adequate workability. Has largely superseded 2017 for structural applications. Uses: Aircraft fittings, gears and shafts, bolts, clock parts, computer parts, couplings, fuse parts, hydraulic valve bodies, missile parts, munitions, nuts, pistons, rectifier parts, worm gears, fastening devices, veterinary and orthopedic equipment, structures. Intrinsic corrosion resistance of 2024 is low for an aluminum alloy, so the clad version is used where needed. Data points with the AA note have been provided by the Aluminum Association, Inc. and are NOT FOR DESIGN. Composition Notes: Composition for AA 2024 (not Alclad 2024). Composition information provided by the Aluminum Association and is not for design.
Key Words:	UNS A82024; Alclad 2024-T4, T351; Alclad 2024-T4, T351; Al2024-T4
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Physical Properties	Metric	English	Comments

Density	2.78 g/cc	0.100 lb/in³	For AA2024 (Not Alclad)

Mechanical Properties	Metric	English	Comments
Tensile Strength, Ultimate	441 MPa	64000 psi	AA; Typical
	>= 395 MPa @Thickness 76.23 - 102 mm	>= 57300 psi @Thickness 3.001 - 4.00 in	Plate; T351
	>= 400 MPa @Thickness 0.254 - 1.52 mm	>= 58000 psi @Thickness 0.0100 - 0.0600 in	Coiled sheet
	>= 415 MPa @Thickness 50.83 - 76.2 mm	>= 60200 psi @Thickness 2.001 - 3.00 in	Plate; T351
	>= 420 MPa @Thickness 1.60 - 3.25 mm	>= 60900 psi @Thickness 0.0630 - 0.128 in	Coiled sheet
	>= 425 MPa @Thickness 6.35 - 12.7 mm	>= 61600 psi @Thickness 0.250 - 0.499 in	Plate; T351
	>= 425 MPa @Thickness 25.43 - 50.8 mm	>= 61600 psi @Thickness 1.001 - 2.00 in	Plate; T351
	>= 435 MPa @Thickness 12.7 - 25.4 mm	>= 63100 psi @Thickness 0.500 - 1.00 in	Plate; T351
Tensile Strength, Yield	290 MPa	42000 psi	AA; Typical
	>= 250 MPa @Thickness 0.254 - 1.52 mm	>= 36300 psi @Thickness 0.0100 - 0.0600 in	Coiled sheet
	>= 260 MPa @Thickness 1.60 - 3.25 mm	>= 37700 psi @Thickness 0.0630 - 0.128 in	Coiled sheet
	>= 275 MPa @Thickness 6.35 - 12.7 mm	>= 39900 psi @Thickness 0.250 - 0.499 in	Plate; T351
	>= 285 MPa @Thickness 76.23 - 102 mm	>= 41300 psi @Thickness 3.001 - 4.00 in	Plate; T351
	>= 290 MPa @Thickness 12.7 - 25.4 mm	>= 42100 psi @Thickness 0.500 - 1.00 in	Plate; T351
	>= 290 MPa @Thickness 25.43 - 50.8 mm	>= 42100 psi @Thickness 1.001 - 2.00 in	Plate; T351
	>= 290 MPa @Thickness 50.83 - 76.2 mm	>= 42100 psi @Thickness 2.001 - 3.00 in	Plate; T351
Elongation at Break	>= 4.0 % @Thickness 50.83 - 76.2 mm	>= 4.0 % @Thickness 2.001 - 3.00 in	Plate; T351
	>= 4.0 % @Thickness 76.23 - 102 mm	>= 4.0 % @Thickness 3.001 - 4.00 in	Plate; T351
	6.0 - 7.0 % @Thickness 25.43 - 50.8 mm	6.0 - 7.0 % @Thickness 1.001 - 2.00 in	Plate; T351
	>= 8.0 % @Thickness 12.7 - 25.4 mm	>= 8.0 % @Thickness 0.500 - 1.00 in	Plate; T351
	>= 12 % @Thickness 6.35 - 12.7 mm	>= 12 % @Thickness 0.250 - 0.499 in	Plate; T351
	12 - 15 % @Thickness 0.254 - 1.52 mm	12 - 15 % @Thickness 0.0100 - 0.0600 in	Coiled sheet
	>= 15 % @Thickness 1.60 - 3.25 mm	>= 15 % @Thickness 0.0630 - 0.128 in	Coiled sheet
	19 % @Thickness 1.59 mm	19 % @Thickness 0.0625 in	AA; Typical
Modulus of Elasticity	73.1 GPa	10600 ksi	AA; Typical; Average of tension and compression. Compression modulus is about 2% greater than tensile modulus.
Shear Strength	276 MPa	40000 psi	AA; Typical

Processing Properties	Metric	English	Comments
Annealing Temperature	413 °C	775 °F
Solution Temperature	493 °C	919 °F

Component Elements Properties	Metric	English	Comments
Aluminum, Al	90.7 - 94.7 %	90.7 - 94.7 %	As remainder
Chromium, Cr	<= 0.10 %	<= 0.10 %
Copper, Cu	3.8 - 4.9 %	3.8 - 4.9 %
Iron, Fe	<= 0.50 %	<= 0.50 %
Magnesium, Mg	1.2 - 1.8 %	1.2 - 1.8 %
Manganese, Mn	0.30 - 0.90 %	0.30 - 0.90 %
Other, each	<= 0.05 %	<= 0.05 %
Other, total	<= 0.15 %	<= 0.15 %
Silicon, Si	<= 0.50 %	<= 0.50 %
Titanium, Ti	<= 0.15 %	<= 0.15 %
Zinc, Zn	<= 0.25 %	<= 0.25 %

References for this datasheet.

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MA2024AT4 / 8861

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