What is 2024 aluminum alloy?

“2024 Aluminum Alloy” refers to a specific type of aluminum alloy that is commonly used in various industries. It is known for its high strength-to-weight ratio and good machinability. The alloy primarily consists of aluminum, with copper as the primary alloying element and small amounts of other elements such as magnesium and manganese. Common 2024 aluminum alloys include 2024 aluminum sheet, 2024 aluminum foil, and 2024 aluminum coil.

Is 2024 aluminum alloy the hardest aluminum?

How hard is aluminum alloy 2024? 2024 aluminum alloy is often utilized in applications that require lightweight yet strong materials, such as aerospace components, aircraft structures, and high-stress parts. Its excellent fatigue resistance makes it suitable for use in structural applications. The alloy can be heat-treated to further enhance its strength.

Chemical composition of 2024 aluminum alloy:

Alloy 2024 aluminum mechanical properties:

Tensile Strength	400-470 MPa (58,000-68,000 psi)
Yield Strength	280-310 MPa (40,000-45,000 psi)
Elastic Modulus	73 GPa (10.6 x 10^6 psi)
Elongation	10-20%
Density	2.78 g/cm³ (0.1 lb/in³).
Hardness	T3 temper 40-45 HRC.

AL2024 alloy features and application range:

This is a high-strength hard aluminum that can be strengthened by heat treatment. It has medium plasticity in the quenched and just-quenched state. It has good spot welding. It has a tendency to form intergranular cracks when it is welded by gas. The alloy can be hardened after quenching and cold work. The machinability is good, but the machinability is low after annealing: the corrosion resistance is not high, and anodic oxidation treatment and painting methods are often used to improve its corrosion resistance.

It is mainly used to make various high-load parts and components (but not including stamping forgings), such as skeleton parts, skins, bulkheads, ribs, spars, rivets and other working parts below 150 °C on aircraft.