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Material type
Metal
Material name
Aluminum 2024-T351 | 3.1355 | 24530 | AlCu4Mg1
Alternative names
AlCu4Mg1, 3.1355
Process compatibility
CNC machining

Alloy 2024 is one of the most prominent aluminium alloys. It has good fatigue resistance and strength, excellent toughness at moderate to high strength levels and improved fracture toughness. All these characteristics make it qualified for aerospace and military applications. The alloy is available in T3, T4 and T8 tempers and in the annealed state.
David Mechanical Engineering Lead at Protolabs Network
Mechanical properties
Ultimate tensile strength
395-470 MPa
Yield strength
275-310 MPa
Young's modulus
(modulus of elasticity)
(modulus of elasticity)
71 - 73.1 GPa
Elongation at break
9-15 %
Physical properties
Corrosion resistance
Poor
Magnetism
Non-magnetic
Weldability
Good
Thermal properties
Maximum service temperature
200 °C
Thermal expansion coefficent
23 - 24.7 10^-6/ºC
Thermal conductivity
121 W/(m⋅°C)
Electrical properties
Electrical resistivity
5.82 μΩ*cm
Post treatments
Post-Processing
Hot & cold working, Age hardening
Anodizing compatibility
Suitable
Common applications
Aircraft fuselage
Commercial & military aircraft
Wing tension members
Critical Aircraft structures