Aluminum Alloy 2024 (UNS A92024)
Aluminum 2024 is a high-strength aluminum alloy that is composed mainly of aluminum, with copper as its primary alloying element, along with smaller amounts of magnesium, manganese, and silicon. The addition of copper to the alloy provides exceptional strength, while the magnesium content increases its machinability.
| 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 a high-strength, lightweight aluminum alloy that is commonly used in a wide range of applications where high strength, excellent fatigue resistance, and good machinability are required. Some common applications of Aluminum 2024 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.