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Aluminium 2011

Aluminium alloy 2011 is mainly used in precision parts such as screws and bolts. It is composed by additions of aluminium and copper that improve its hardness and strength.

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Aluminium 2011 cnc machining


  • Superior Machinability
  • Hardness and Strength
  • Good Surface Finish


  • Average Corrosion Resistance
  • Low weldability


  • Machining process: CNC Machining
  • Tolerances: ISO 2768-1 fine (f) or medium (m) class. Info
  • Max size: 150x150x500 mm; 5.9x5.9x19.7 in
  • Lead time: <4 days
HP-certified 1


4.81 / 5 from 281 reviews

Aluminium 2011 CNC machined VIDEO GALLERY


Top machinability

Its superior machinability enables precision parts with an excellent surface finish, ensuring functionality and aesthetics for end users. The high production speed also ensures a constant supply of parts and can potentially reduce costs.


Hardness and Strength

Its greater hardness and strength helps to create durable and resilient parts. It means that parts made with this alloy can withstand greater wear and tear, increasing the longevity of end products and reducing the replacement frequency of parts, giving users both reliability and confidence.


Good Surface Finish

A good surface finish on Aluminium 2011 parts enhances the aesthetic appearance. It means that products not only perform well, but also look clean and professional. In addition, a smooth surface can reduce the accumulation of dirt and grime, making it easier for users to maintain.



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The 2011 aluminium alloy is known for its excellent machinability. Mainly used for precision parts such as screws and bolts, it is composed of aluminium with copper added to improve hardness and strength. However, it has limited corrosion resistance and is not ideal for welding.


Excellent Machinability: Aluminium 2011 alloy is known for its excellent machinability, making it ideal for the production of precision parts such as screws and bolts. Its ability to be easily and precisely formed contributes to the production of high-quality components.

Hardness and Strength: Thanks to the addition of copper, this alloy offers greater hardness and strength than pure aluminium. This means that components made from this alloy are stronger and more durable, suitable for applications requiring greater mechanical strength.

Good Surface Finish: Finished products made from Aluminium 2011 alloy have a clean and professional surface finish. This is important not only for the aesthetic appearance of the components, but also for their functionality, as a well-finished surface can influence corrosion resistance and suitability for specific applications.


Corrosion Resistance: A significant disadvantage of the 2011 aluminium alloy is its poor corrosion resistance. This makes this alloy less suitable for applications where contact with corrosive agents such as water or chemicals is frequent. It is important to consider this limitation when choosing this alloy for a specific application.

Weldability: Due to its chemical composition, the 2011 aluminium alloy is not considered ideal for welding. This can represent a challenge for manufacturing processes that require the use of welding to join components. The difficulty in welding this alloy can limit design and manufacturing options, especially in industries where welding is a common method for component assembly.

Comparison to other materials and aluminum alloys

Lightweight: Compared to materials such as steel or brass, Aluminium 2011 is lighter, making it an ideal choice when weight reduction is an important consideration. This makes it particularly suitable for applications where the overall weight of components needs to be reduced without compromising strength and durability.

Machinability and production costs: Aluminium 2011's excellent machinability can lead to significant savings in production costs, especially in high-speed processes. Its ability to be easily shaped and machined allows for efficient and rapid production of precision components, helping to reduce production time and associated costs.

Differences compared to other aluminium alloys: When compared to other aluminium alloys such as 6061 or 7075, Aluminium 2011 offers superior machinability. However, it lacks corrosion resistance and weldability, which are important characteristics to consider in applications where durability and the ability to withstand the environment are crucial. Therefore, the choice between Aluminium 2011 and other alloys will depend on the specific needs of the application, balancing the advantages of machinability with the limitations of corrosion resistance and weldability.

Common and recommended uses

It is important to carefully consider the specific requirements of the application before using Aluminium 2011. Although it is ideal for certain situations due to its machinability and strength, its limitations, such as corrosion resistance and weldability, must also be considered. In some cases, it may be necessary to balance the advantages of workability with the strength and durability requirements of the finished component. Therefore, the choice of Aluminium 2011 should be based on a comprehensive evaluation of the application's requirements and its specific characteristics.

Production of precision parts: Aluminium 2011 is particularly suitable for the production of precision parts requiring complex machining, such as gears, screws and bolts. Its excellent machinability allows for precise and complex details, making it ideal for components that require tight tolerances and complex geometries.

Automotive, aerospace and electronics industries: This alloy is used in industries where precise, high-strength components are required. Industries such as automotive, aerospace and electronics benefit from the use of Aluminium 2011 for the production of parts that must withstand high mechanical stresses and require precision in dimensions and machining.


In conclusion, the 2011 aluminium alloy offers a number of significant advantages, including its exceptional machinability that makes it ideal for the production of precision parts such as screws and bolts, as well as the increased hardness and strength achieved through the addition of copper. However, it is also important to consider its limitations, such as limited corrosion resistance and poor weldability. When compared to other aluminium alloys, Aluminium 2011 offers superior machinability, but lacks corrosion resistance and weldability, which could influence the choice based on the specific needs of the application. Furthermore, while it is widely used in the automotive, aerospace and electronics industries for the production of precise, high-strength components, it is important to carefully evaluate the requirements of the specific application before using it, taking into account its advantages and limitations. Ultimately, Aluminium 2011 is an excellent choice for the production of precision parts, but its usefulness depends on careful consideration of the requirements of the application and management of its unique characteristics.

"I had a fantastic experience with Weerg for our Aluminum 2011 parts. Their expert handling of this alloy resulted in high-quality, precision components with excellent hardness, strength, and surface finish. The process was efficient, with impressive turnaround times. Weerg's transparency about the alloy's limitations was appreciated. Overall, Weerg earns a 5-star rating for its outstanding service and product quality. Looking forward to more projects together."


Tensile breaking load 245 MPa
Modulus of elasticity 70 GPa
Elongation at break 9%
Density 2,83 g/cm³
Melting temperature 640°C
Hardness 110 HB
Yield strength 200 MPa




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