Aluminum Alloy 2024 (UNS A92024)
Aluminum 2024 is a copper-based high-strength aluminum alloy, widely used in aerospace for its exceptional strength-to-weight ratio, machinability, and fatigue resistance.
Looking to buy aluminum?
Check pricing and availability through our trusted partner:
| Chemical Composition | ||
|---|---|---|
| Element | Min | Max |
| Aluminum | 90.7% | 94.7% |
| Chromium | —— | 0.1% |
| Copper | 3.8% | 4.9% |
| Iron | —— | 0.5% |
| Magnesium | 1.2% | 1.8% |
| Manganese | 0.3% | 0.9% |
| Silicon | —— | 0.5% |
| Titanium | —— | 0.15% |
| Zinc | —— | 0.25% |
| Residuals | —— | 0.15% |
The following table provides a list of aluminum 2024 properties in both SI and US customary/Imperial units.
Click on the icon to switch between Metric and Imperial units.
| Physical Properties | Metric |
|---|---|
| Density | 2780 kg/m3 |
| Mechanical Properties | Metric |
| Tensile Strength | 400 - 470 MPa |
| Yield Strength | 240 - 300 MPa |
| Young’s Modulus (E) | 73 GPa |
| Shear Modulus (G) | 28 GPa |
| Elongation at Break | 10 - 20% |
| Poisson’s Ratio (ν) | 0.33 |
| Brinell Hardness | 120 - 140 HB |
| Thermal Properties | Metric |
| Melting Point | 500 - 640 °C |
| Thermal Conductivity | 121 - 200 W/m·K |
| Specific Heat Capacity (Cp) | 880 J/kg·K |
| Coefficient of Thermal Expansion (αL) | 2.31×10-5 1/°C |
| Electrical Properties | Metric |
| Electrical Conductivity | 1.74×107 S/m |
| Electrical Resistivity | 3.5×10-8 Ω·m |
The values in this table are approximate and can vary depending on various factors such as the specific manufacturing process and heat treatment applied to the alloy.
Advantages & Disadvantages of Aluminum 2024
| Advantages | Disadvantages |
|---|---|
| High strength-to-weight ratio | Poor corrosion resistance |
| Good machinability | Limited heat treatability |
| Good fatigue resistance | High cost |
| Easy to weld |
Applications of Aluminum 2024
Aluminum 2024 is the aerospace industry’s preferred high-strength alloy, prized for its fatigue resistance, machinability, and strength-to-weight ratio. Key applications include:
- Aerospace and aviation: Aluminum 2024 is widely used in the aerospace and aviation industries due to its high strength-to-weight ratio and good fatigue resistance. It is used in the construction of aircraft structures, including wing and fuselage components, as well as engine parts.
- Automotive and transportation: Aluminum 2024 is used in the automotive and transportation industries for applications that require high strength and durability, such as in the production of wheels, brake components, and suspension systems.
- Sporting goods: Aluminum 2024 is commonly used in the production of sporting goods, including bike frames, baseball bats, and golf clubs, due to its high strength and lightweight properties.
- Marine and naval applications: Aluminum 2024 is used in marine and naval applications due to its resistance to saltwater corrosion and excellent strength-to-weight ratio. It is commonly used in the construction of boat hulls and structural components.
- Machinery and equipment: Aluminum 2024 is used in the production of various machinery and equipment components, including gears, shafts, and fasteners, due to its excellent machinability and strength properties.