Aluminum 2024
Aluminum Alloy 2024 is an aluminum alloy whose main alloying element is copper. It is mainly used in applications that require a high strength-to-weight ratio and good fatigue resistance. It has weldable properties, but can only be welded by friction.
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Characteristic Appraisal
Characteristic | Rating |
Strength | Excellent |
Corrosion Resistance | Poor |
Weldability & Brazability | Poor |
Workability | Good |
Machinability | Fair |
Chemical Composition
Element | Content(%) |
Aluminum, Al | 93.50 |
Copper, Cu | 4.4 |
Magnesium, Mg | 1.5 |
Manganese, Mn | 0.6 |
Physical Properties
Properties | Metric | Imperial |
Density | 2.77 g/cm3 | 0.10007 lbs/in3 |
Melting Point | 510°C | 950°F |
Mechanical Properties
Properties | Metric | Imperial |
Hardness, Brinell | 120 | 120 |
Hardness, Knoop | 150 | 150 |
Hardness, Rockwell A | 46.8 | 46.8 |
Hardness, Rockwell B | 75 | 75 |
Hardness, Vickers | 137 | 137 |
Tensile Strength, Ultimate | 469 MPa | 68000 psi |
Tensile Strength, Yield | 324 MPa | 47000 psi |
Elongation at Break | 20% | 20% |
Modulus of Elasticity | 73.1 GPa | 10600 ksi |
Poisson’s Ratio | 0.33 | 0.33 |
Fatigue Strength | 138 MPa | 20000 psi |
Shear Modulus | 28 GPa | 4060 ksi |
Thermal Properties
Properties | Metric | Imperial |
CTE, linear 68°F | 23.2 µm/m-°C | 12.9 µin/in-°F |
Specific Heat Capacity | 0.875 J/g-°C | 930 BTU-in/hr-ft²-°F |
Thermal Conductivity | 121 W/m-K | 840 BTU-in/hr-ft²-°F |
Applications
Aluminum 2024 is used in the following application areas:
· Aircraft fittings
· Gears and shafts
· Bolts
· Fuse parts
· Hydraulic valve bodies
· Missile parts
· Munitions
· Worm gears
· Fastening devices
· Veterinary and Orthopedic equipment
Key Words: Aluminum 2024-T351; AA2024-T351, Aluminum 2024-T4; UNS A92024; ISO AlCu4Mg1; NF A-U4G1 (France); DIN AlCuMg2; AA2024-T4, ASME SB211; CSA CG42 (Canada)
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