2024 Aluminum Bar
The 2024 aluminum bar is a typical aluminum-copper-magnesium hard aluminum alloy with a reasonable composition ratio and excellent overall performance. It is one of the most commonly used materials among hard aluminum alloys. The strength of the 2024 aluminum bar is very high, sometimes even surpassing that of the 7075 alloy. It has good forming properties, especially in hot, annealed, or freshly quenched states, and its strength can be significantly increased through heat treatment. However, the heat treatment process needs to be strictly controlled to achieve optimal results.
2024 Aluminum Bar Features
- 1. High Strength: 2024 aluminum bar is a high-strength hard aluminum alloy, particularly excelling after heat treatment strengthening. Its machinability is good after quenching and work hardening, making it suitable for machining.
- 2. Machinability: The machinability of the alloy is relatively low in the annealed state, but after quenching, it has good machinability with a high surface finish, making it ideal for applications requiring precision machining.
- 3. Welding and Riveting: 2024 aluminum bar has good spot welding performance and is suitable for riveting. However, there is a tendency for intergranular cracking when gas welding is used, so special techniques are required to prevent cracking during welding.
- 4. Corrosion Resistance: Its corrosion resistance is relatively poor but can be improved by cladding with pure aluminum or through anodizing and painting.
- 5. Formability: It has good forming capabilities in quenched and freshly quenched states, making it suitable for manufacturing complex-shaped structural parts.
- 6. Heat Resistance: It is suitable for working environments below 150°C, making it ideal for high-load components that need to operate at medium temperatures.
Grade 2024 Bar Sizes & Specifications
grade | condition | shape | temper | size range | specification |
2024 | Cold Finished | Rounds | T351 | 1/2" - 8" | AMS 4120 / ASTM B-211 |
T4 | 3/16" - 7/16" | ||||
Hexagons | T351 | 1/2" - 2" | |||
T4 | 3/16" - 7/16" | ||||
Squares | T351 | 1/2" - 4" | |||
T4 | 1/4" - 3/8" | ||||
Flats | T351 | 1/2"x 3/4" - 4"x 6" | |||
T4 | 1/8"x 1" - 3/8"x 6" |
Hot Selling Products of HC Aluminum 2024 Aluminum Bar
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2024 Aluminum Flat Bar
A flat rectangular bar known for its high strength-to-weight ratio, excellent fatigue resistance, and good machinability. It is widely used in aerospace components, structural parts, and high-stress applications.
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2024 Aluminum Rod
A solid cylindrical bar known for its high strength and fatigue resistance, suitable for aircraft components, hydraulic valve bodies, and other high-performance applications.
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2024 Aluminum Round Bar
Similar to rods but available in various diameters, commonly used in aerospace, automotive, and military applications where high strength and fatigue resistance are required.
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2024 Aluminum Square Bar
A square bar with excellent mechanical properties, high fatigue resistance, and good machinability, used for structural components, tools, and precision parts.
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2024 CF Aluminum Bar
A cold-finished bar with enhanced mechanical properties and surface finish. It offers higher strength and dimensional accuracy, making it suitable for precision applications in aerospace, military, and engineering.
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2024 T3 Aluminum Bar
This is 2024 aluminum in the T3 temper, meaning it has been solution heat-treated and cold worked. It is known for its high strength and is used in aerospace parts, aircraft components, and structural applications.
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2024 T351 Aluminum Bar
Similar to T3 but stress-relieved by stretching after heat treatment. It has slightly improved resistance to stress corrosion cracking and is used for high-stress components, including aircraft fittings and structures.
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2024 T351 Aluminum Flat Bar
A flat bar in T351 temper, featuring high strength, fatigue resistance, and good machinability, commonly used in aerospace structures and components requiring high load-bearing capacity.
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2024 T4 Aluminum Round Bar
In the T4 temper, solution heat-treated and naturally aged. This bar offers high strength and fatigue resistance, used in aerospace and heavy industry applications.
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2024 T6 Round Bar
The T6 temper provides higher strength than T4, though with reduced ductility. It is heat-treated and artificially aged, suitable for critical aerospace applications and high-stress components.
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2024 T851 Round Bar
Similar to T351 but with additional aging treatment to further enhance mechanical properties. This bar is cold-finished and offers an excellent strength-to-weight ratio, used in demanding aerospace, automotive, and military components.
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Aluminum Round Bar 2024
A general term for 2024 round aluminum bars in various conditions (T3, T4, T6, etc.), used for aerospace, military, and automotive applications due to their excellent mechanical properties.
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Aluminum Round Bar 2024 T851 Cold Finished
A cold-finished 2024 round bar in T851 temper, offering high strength and excellent fatigue resistance. It is typically used for high-performance and critical aerospace applications where precision and durability are essential.
2024 Aluminum Bar Applications
2024 aluminum has largely replaced the 2017 grade for structural applications. It offers excellent strength, which is 50% higher than low-carbon steel, and is commonly used in aircraft applications. It also has good corrosion resistance.
2024 is primarily used to manufacture various high-load parts and components (excluding stamped and forged parts) such as structural parts on aircraft, skins, ribs, spars, and rivets, for components working under 150°C.
- 1. Aerospace: 2024 aluminum bars are widely used in aircraft structural components, such as framework parts, skins, ribs, spars, and rivets. These components usually bear high loads, requiring materials with extremely high strength and good formability.
- 2. Automotive: In the automotive industry, 2024 aluminum bars are often used to manufacture high-strength structural components, especially in applications where reducing weight to improve fuel efficiency is essential.
- 3. Machinery: This alloy is also suitable for manufacturing high-strength and precision-machined mechanical parts, such as gears, bearings, and high-strength connectors.
- 4. Industrial Equipment: 2024 aluminum bars are used in industrial equipment primarily for high-strength and durable parts such as frames and support structures.
Chemical composition of 2024 aluminum bar
Element | Composition (%) |
Si | 0~0.5% |
Fe | 0~0.5% |
Cu | 3.8~4.9% |
Mn | 1.2~1.8% |
Mg | 0.3~0.9% |
Cr | 0~0.1% |
Zn | 0~0.25% |
Ti | 0~0.15% |
Al | 92~93.5% |
Mechanical properties of 2024 aluminum bar
Temper | T3 | T351 | T851 | T4 | O |
Density | 0.1 lb/in3 | 0.1 lb/in3 | 0.1 lb/in3 | 0.1 lb/in3 | 0.1 lb/in3 |
Ultimate Tensile Strength (ksi) | 70 (bare); 65 (clad) | 67 | 75 | 69 | 27 (bare); 26 (clad) |
Yield Tensile Strength (ksi) | 50 (bare); 45 (clad) | 47 | 66 | 45 | 11 |
Elongation at Break (%) | 18 | 13 | 4.90 | 16 | 20 |
Fatigue Strength (ksi) | 20 | 20 | 17 | 20 | 13 |
Hardness Rockwell | Brinell | B75 | 120 | B75 | 120 | B84 | 140 | B75 | 120 | N/A | 47 |
Modulus of Elasticity (ksi) | 10, 600 | 10, 000 | 10, 000 | 10, 000 | 10, 600 |
Machinability (%) | 70 | 70 | 70 | 70 | 30 |
Thermal Conductivity (BTU-in/hr-ft^2-°F) | 840 | 840 | 1, 050 | 840 | 1, 340 |
2024 Aluminum Bar Faqs
Is 2024 aluminum stronger than 6061?
Yes, 2024 aluminum is stronger than 6061 aluminum in terms of tensile strength and fatigue resistance. 2024 is ideal for high-stress applications like aerospace components, while 6061 offers better corrosion resistance and is easier to weld.
What is 2024 Aluminium grade?
2024 aluminum is an alloy primarily composed of aluminum, with copper as the main alloying element (around 4.4%). It belongs to the 2xxx series of aluminum alloys, known for their high strength and excellent fatigue resistance, commonly used in aerospace and military applications.
Does 2024 aluminum corrode?
Yes, 2024 aluminum is more prone to corrosion, particularly in marine environments, due to its high copper content. It often requires protective coatings, like anodizing or painting, to enhance its corrosion resistance.