Aluminum 2024-T86

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Aluminum 2024-T86
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 Has largely superseded 2017 for structural applications.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. Data points with the AA note have been provided by the Aluminum Association, Inc. and are NOT FOR DESIGN. Composition Notes: A Zr + Ti limit of 0.20 percent maximum may be used with this alloy designation for extruded and forged products only, but only when the supplier and the purchaser have mutually agreed. Composition information provided by the Aluminum Association and is not for design.
Key Words:	Aluminium 2024-T86; UNS A92024; ISO AlCu4Mg1; NF A-U4G1 (France); DIN AlCuMg2; AA2024-T86, ASME SB211; CSA CG42 (Canada); Al2024-T86
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Physical Properties	Original Value	Comments

Density	2.78 g/cc	AA; Typical

Mechanical Properties	Original Value	Comments
Hardness, Brinell	135	500 kg load with 10 mm ball
Hardness, Knoop	170	Converted from Brinell Hardness Value
Hardness, Rockwell A	50.6	Converted from Brinell Hardness Value
Hardness, Rockwell B	82	Converted from Brinell Hardness Value
Hardness, Vickers	155	Converted from Brinell Hardness Value
Tensile Strength, Ultimate	515 MPa
Tensile Strength, Yield	440 MPa
Elongation at Break	6.0 % @Thickness 1.60 mm	In 5 cm
Modulus of Elasticity	72.4 GPa	Average of Tension and Compression. In Al alloys, the compressive modulus is typically 2% greater than the tensile modulus
Poissons Ratio	0.33
Fatigue Strength	125 MPa @# of Cycles 5.00e+8
Shear Modulus	28.0 GPa
Shear Strength	310 MPa

Electrical Properties	Original Value	Comments
Electrical Resistivity	0.00000450 ohm-cm

Thermal Properties	Original Value	Comments
CTE, linear	12.9 µin/in-°F @Temperature 20.0 - 100 °C	AA; Typical; average over range
	21.1 µm/m-°C @Temperature -50.0 - 20.0 °C
	22.9 µm/m-°C @Temperature 20.0 - 100 °C
	23.8 µm/m-°C @Temperature 20.0 - 200 °C
	24.7 µm/m-°C @Temperature 20.0 - 300 °C
Specific Heat Capacity	0.875 J/g-°C
Thermal Conductivity	151 W/m-K
Melting Point	935 - 1180 °F	AA; Typical range based on typical composition for wrought products >= 1/4 in. thickness. Eutectic melting is not eliminated by homogenization.
Solidus	935 °F	AA; Typical
Liquidus	1180 °F	AA; Typical

Processing Properties	Original Value	Comments
Annealing Temperature	775 °F
Solution Temperature	493 °C

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

References for this datasheet.

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MA2024T86 / 8871

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