2024 CF Aluminum Bar
2024 CF (Cold Finished) aluminum bar is a high-performance aluminum alloy known for its high strength and excellent machinability, widely used in applications requiring high strength and precision machining.
The 2024 alloy, known as the "aircraft" alloy, is an ideal choice for aerospace and industrial applications due to its outstanding strength-to-weight ratio.
2024 CF Aluminum Bar Material Properties
- Strength-to-weight ratio: 2024 aluminum alloy offers an excellent strength-to-weight ratio, making it an indispensable material in aerospace and precision machinery manufacturing.
- Machinability: After cold finishing, 2024 CF aluminum bars have excellent surface finish and can be machined into high-precision, complex parts.
- Corrosion resistance: While the corrosion resistance is only average, it can be significantly improved through anodizing or coating treatments.
- Formability: The formability at room temperature is average, but it performs exceptionally well in cold heading and thread rolling processes.
- Heat treatment characteristics: 2024 alloy can be further strengthened through heat treatment, especially in T3 and T4 tempers.
2024 CF Aluminum Bar Tempers
- T3 temper emphasizes high strength and good toughness, making it suitable for aerospace structural components that require both strength and impact resistance.
- T4 temper emphasizes enhanced fatigue resistance, suitable for parts that endure repeated loading and stress over time. While its strength is slightly lower than T3, its durability is superior.
| Properties | Aluminum Bar 2024-T3-Cold Finish | Aluminum Bar 2024-T4-Cold Finish |
| Heat Treatment Process | Natural aging after processing | Solution heat-treated, cooled to room temperature, and artificially aged |
| Strength | High strength (higher tensile strength and yield strength) | Moderate strength (higher but lower than T3) |
| Toughness | Good toughness | Fair toughness (slightly lower than T3, but moderate) |
| Fatigue Resistance | Weak | Enhanced fatigue resistance (better suited for cyclic load applications) |
| Stress Relief | Limited stress relief | Effective stress relief through artificial aging |
| Corrosion Resistance | Poor (requires additional surface treatment) | Poor (requires additional surface treatment) |
| Applications | Aerospace structural components (such as fuselage, wing spars, hydraulic components, etc.) | Aerospace structural components (such as wing spars, frames, tail surfaces, etc.) |
| Typical Applications | Aircraft fuselage, wing spars, control surfaces, hydraulic components, etc. | Aircraft wing spars, landing gear components, fuselage internal frames, etc. |
Aluminum Bar 2024-T3-Cold Finish
The T3 temper refers to the state of 2024 aluminum alloy after processing (such as extrusion or rolling), followed by natural aging. This treatment typically involves leaving the alloy at room temperature for a period, allowing solute elements (such as copper) in the aluminum to precipitate and harden, thereby increasing its strength.
Aluminum Bar 2024-T4-Cold Finish
The T4 temper refers to the state of 2024 aluminum alloy after solution heat treatment, cooling to room temperature, and then artificially aging. Compared to the T3 temper, the T4 state involves an accelerated aging process that enhances the alloy's fatigue resistance, while still providing good strength.
- T3: After processing, it undergoes natural aging, providing high strength and good toughness.
- T4: Resolves stress issues and enhances fatigue resistance.
2024 CF Aluminum Bar Machinability
- Cold working: It performs excellently in cold working environments, enabling the machining of high-precision and complex geometries.
- Machinability: It has high cutting efficiency, is suitable for high-speed machining equipment, and easily achieves a high surface finish.
- Thread machining: Due to its high strength and machinability, 2024 CF aluminum bar is particularly common in thread rolling and bolt manufacturing.
2024 CF Aluminum Bar Applications
2024 CF aluminum bars (aluminum alloy bars) are widely used in various fields due to their excellent overall properties, such as high strength, good corrosion resistance, and high machinability.
| Application Field | Specific Applications | Features and Advantages |
| Aerospace and Aviation | Aircraft Components | 2024 aluminum alloy is commonly used in aircraft structural components and fuselage frame assemblies. It provides sufficient strength to withstand high pressures and stresses during flight without adding excessive weight. Particularly, for critical parts such as wing spars, tail surfaces, fuselage frames, and control surfaces, 2024 CF aluminum bar is the ideal choice. |
| Gears and Shafts | 2024 aluminum alloy provides excellent strength and wear resistance, making it suitable for gears and shafts in aircraft and spacecraft. These parts need to withstand complex load conditions, and the high strength and low density of aluminum alloy help reduce weight and improve fuel efficiency. | |
| Bolts | As a fastening element, bolts made from 2024 CF aluminum bar have high strength, low weight, and good corrosion resistance. They are used in high-strength connections in aerospace applications, such as aircraft body joints and other important structural components. | |
| Hydraulic Equipment and Instruments | Hydraulic Valve Bodies and Components | In hydraulic systems, many components need to withstand high pressure and heavy loads. The high strength and good machinability of 2024 aluminum alloy make it the ideal material for hydraulic valve bodies and components. It ensures the valve bodies maintain stable performance under high pressure and maintain precise dimensions. |
| Fasteners | Cross-Head Screws | 2024 aluminum alloy is used to manufacture cross-head screws, widely applied in aerospace, automotive, and machinery fields. These screws are particularly suitable for high-strength connection requirements due to their excellent tensile strength and corrosion resistance. |
2024 CF aluminum bars, with their high strength, good corrosion resistance, excellent machinability, and low density, are widely used in aerospace, precision machinery and electronics, hydraulic equipment and instruments, and fasteners, meeting the demands for high strength, fatigue resistance, corrosion resistance, and high-precision manufacturing.
2024 CF Aluminum Bar Advantages
It demonstrates better machinability than 2014 and 2017 alloys, making it especially suitable for applications requiring high surface finish and high precision.
It can meet the diverse needs of cold heading, thread rolling, and complex part machining.
In aerospace and mechanical manufacturing, it balances strength and machinability, improving overall structural efficiency and performance.
Due to its balanced properties of strength, machinability, and precision requirements, 2024 CF aluminum bar has become one of the preferred materials for high-strength and complex part manufacturing. Whether for aerospace components, precision machinery, or hydraulic systems, 2024 CF aluminum bar demonstrates reliable performance and broad adaptability.
2024 CF Aluminum Bar Mechanical Properties
| Property | Value |
| Tensile Strength | 68, 000 PSI |
| Yield Strength | 47, 000 PSI |
| Elongation | 19% |
2024 CF Aluminum Bar Chemical Composition
| Element | Range |
| Aluminum | 90.7% - 94.7% |
| Chromium | Max 0.1% |
| Copper | 3.8% - 4.9% |
| Iron | Max 0.5% |
| Magnesium | 1.2% - 1.8% |
| Manganese | 0.3% - 0.9% |
| Silicon | Max 0.5% |
| Zinc | Max 0.25% |
