2024 Aluminum Plate

 

 

 

Chemical composition

 

Aluminium (90.7–94.7%)

Silicon no minimum, maximum 0.5% by weight

Iron no minimum, maximum 0.5%

Copper minimum 3.8%, maximum 4.9%

Manganese minimum 0.3%, maximum 0.9%

Magnesium minimum 1.2%, maximum 1.8%

Chromium no minimum, maximum 0.1%

Zinc no minimum, maximum 0.25%

Titanium no minimum, maximum 0.15%

Other elements no more than 0.05% each, 0.15% total

 

Mechanical properties

2024-O temper aluminium has no heat treating. It has an ultimate tensile strength of 140–210 MPa (21–30 ksi), and maximum yield strength of no more than 97 MPa (14,000 psi). The material has elongation (stretch before ultimate failure) of 10–25%, this is the allowable range per applicable AMS specifications.

 

T3 temper 2024 sheet has an ultimate tensile strength of 400–430 MPa (58–62 ksi) and yield strength of at least 270–280 MPa (39–40 ksi).

 

Comprising aluminum as the base, alloyed with copper, magnesium, and manganese in meticulously calibrated ratios, the 2024 formulation endows the plate with remarkable strength characteristics. The copper content, in particular, imparts a significant boost to its tensile and yield strengths, making it highly resistant to deformation under heavy loads. In the aerospace sector, it is widely utilized for manufacturing critical structural elements such as fuselage skins and wing panels. These applications demand materials that can withstand the extreme forces during takeoff, flight, and landing, and the 2024 aluminum plate's robustness ensures the integrity and safety of the aircraft.

 

Heat treatment plays a vital role in optimizing the properties of the 2024 aluminum plate. Through a series of precisely controlled annealing, quenching, and aging processes, its microstructure is refined, leading to enhanced hardness and fatigue resistance. This means that not only can it bear static loads but also endure the cyclic stresses typical in applications like helicopter rotor blades and automotive suspension components, where repeated loading and unloading occur over time without succumbing to premature failure.

The plate's machinability, despite its high strength, is surprisingly favorable. Machinists can skillfully work with it, using techniques such as milling, drilling, and cutting to achieve intricate shapes and tight tolerances. This is crucial in industries like electronics manufacturing, where custom-designed aluminum plates are needed for circuit board enclosures and heat sinks, ensuring efficient heat dissipation while fitting snugly within compact device architectures.

 

In terms of corrosion resistance, while not as naturally impervious as some dedicated corrosion-resistant alloys, the 2024 aluminum plate can be effectively protected through surface treatments like anodizing or coating applications. This extends its lifespan and usability in outdoor and industrial environments, be it for marine applications like boat hull reinforcements or in industrial machinery exposed to humid or chemically active surroundings.

 

Moreover, the lightweight nature of aluminum inherent in the 2024 plate remains a significant advantage. It allows for weight reduction in applications without compromising on strength, fueling innovation in sectors such as renewable energy, where lightweight yet durable structures are essential for solar panel mounts and wind turbine components. Overall, the 2024 aluminum plate stands as a versatile and high-performing material, driving progress in multiple technological frontiers.

 

 

 

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