Aluminum Alloy (Copper Alloyed)

Aluminum 2024-T3 / T351

2024 is a copper-alloyed, heat-treatable aluminum with high strength and excellent fatigue resistance. It has a long history in aircraft structures and is chosen where cyclic loading matters. Request a quote or browse all materials.

Typical Properties

Aluminum 2024 at a glance

Property	Typical value
Density	2.78 g/cm³ (0.100 lb/in³)
Ultimate tensile strength	~470–483 MPa (68–70 ksi)
Yield strength (0.2%)	~325–345 MPa (47–50 ksi)
Elongation at break	~18–20%
Hardness	120 HB
Elastic modulus	73.1 GPa
Thermal conductivity	121 W/m·K
Melting range	502–638 °C

Typical values for T3 sheet and T351 plate/bar. These are typical reference values from standard published data, not guaranteed minimums. Request material certificates in your RFQ if properties must be verified.

Advantages

Why engineers choose Aluminum 2024

Fatigue resistance

Better fatigue behavior than many other high-strength aluminum alloys.

Strength

Significantly stronger than 6061.

Machinability

Machines well with good chip control.

Toughness

Good fracture toughness for structural parts.

Design considerations: Poor corrosion resistance without protection (often supplied clad or anodized/chem-filmed); generally not fusion welded; usually higher cost than 6061.

Applications