Aluminum 2024
Aluminum 2024 is well known for its strength, durability and overall performance qualities. This alloy is primarily aluminum based, with the addition of heating elements copper, manganese and magnesium which are well combined and increase the engineering properties of the material and hence is used in high performance applications.
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Aluminum 2024 is classified as a high-strength alloy for aerospace design and manufacturing. This alloy is included in the series 2000 of aluminum alloys, consisting mainly of copper approximately 4.4% to 5.0%.
When this particular aluminum alloy is subjected to a standard heat treatment to improve its mechanical properties, the proper name to call it is Aluminum Alloy 2024-T3. The numerical index here is a T3, meaning that the alloy has undergone a solution heat treatment and artificial ageing to develop its strength.
Among the most useful alloys, Aluminum 2024 is suited for a wide range of processes, including machining, welding, forming, aging, forging, and casting.
Kingsun's senior machining engineer
Aluminum 2024 Properties
Mechanical Properties
- Tensile Strength, Ultimate: 395 - 495 MPa
- Tensile Strength, Yield: 260 - 324 MPa
- Elongation at Break: 8 - 19%
- Modulus of Elasticity: 73.1 GPa
- Fatigue Strength: 138 MPa
- Fracture Toughness: 26.0 - 37.0 MPa-m½
- Shear Strength: 283 MPa
Physical Properties
- Density: 2.78 g/cc
- Hardness (Brinell): 120
Thermal Properties
- Thermal Conductivity: 121 W/m-K
- Specific Heat Capacity: 0.875 J/g-°C
- Melting Point: 502 - 638 °C
- Coefficient of Thermal Expansion: 21.1 - 24.7 µm/m-°C
Electrical Properties
Electrical Resistivity: 0.00000582 ohm-cm
Post Treatments
- Annealing Temperature: 413 °C
- Solution Temperature: 493 °C
Common Applications
- Aircraft fittings, gears, and shafts
- Bolts, clock parts, computer parts
- Couplings, fuse parts, hydraulic valve bodies
- Missile parts, munitions, nuts, pistons
- Rectifier parts, worm gears, fastening devices
- Veterinary and orthopedic equipment, structures
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Frequently Asked Questions (FAQs)
Q: What is aluminum 2024 and what are its primary characteristics?
A: Aluminum 2024 is a high strength aluminum alloy with good fatigue characteristic. The main alloying element, which gives the alloy its mechanical properties, is copper. It is applied mainly in the aerospace field because of its strength to weight ratio.
Q: What are the mechanical properties of 2024 aluminum alloy?
A: The ultimate tensile strength of 2024 aluminum alloy is in the range of 400 – 430 MPa and the yield strength in the range of 270 – 280 MPa. The material also provides good fatigue resistance which makes it suitable for use in structural member applications in the aerospace field.
Q: Why does 2024 aluminum have such properties?
A: The features of 2024 aluminum include copper as the main alloying element in the matrix and small manganese, magnesium, silicon, and zinc content, which determine the properties of the aluminum alloy. This particular chemical composition is responsible for the high strength and good fatigue resistance for the high performance of the aircraft and other structures required.
Q: In what forms is aluminum alloy 2024 available?
A: Aluminum alloy 2024 is available in several forms, including sheets and plates, and extrusion sections. This forms facilitate a variety of applications to the manufactures of the aerospace parts and structural parts.
Q: What are the common applications of 2024 aluminum?
A: 2024 aluminum finds a prime application in aircraft structures, military vehicles, and other high-stress applications in the aircraft industry. Components that demand high strength and fatigue endurance, such as wings and fuselage parts, get appreciation at best from it.
Q: What is the T3 temper of the alloy 2024 aluminum classification?
A: The T3 temper of 2024 aluminum means that the alloy in question was first subjected to solution heat treatment and then artificially aged aiming at improving the strength. This temper provides a good compromise in terms of strength and workability that is why it can be used in demand for many aerospace products.
Q: The corrosion resistance ability of the aluminum alloy 2024 to other types of aluminum alloys in use what is your observation?
A: The corrosion resistance ability of 2024 aluminum is one of the serious disadvantages of this alloy. This is because most of the alloying elements in this alloy are copper, which is known for improving strength against elements, but weakens against corrosion. However, this can be surface finished or clad with a material, which is better than corrosion resistant one to enhance its effectiveness in a corrosive environment.
Q: Is 2024 aluminum weldable?
A: 2024 aluminum has a strong tendency to crack and its not weldable, nor does it possess a high strength. and puts the efficacy of welding more than it would need to.
Q: Fatigue strength of aluminum 2024?
A: More than 97 MPa fatigue strength of cure 05 aluminum 2024 makes this material safe for construction tasks exposed to cyclic loading such as moves and undulations of wings and fuselages in airplanes.
Q: Turning of 2024 aluminum, what is the most important thing?
A: While machining 2024 aluminum, it should be borne in mind that average aluminum 2024 has good machinability, and therefore appropriate methods to emulate cutting sheets of work are essential. The alloy would have to consider how machining will not lead to work hardening and poor surface finish. A coolant will be employed in high-speed machining.