Choosing Between Extruded Aluminum and Cold Finish

Choosing Between Extruded Aluminum and Cold Finish
  • Opening Intro -

    Construction and industrial companies largely use aluminum for their projects as it is a very versatile and durable material.

    However, there are different processes for shaping aluminum, like extruded or cold finish.


There are different reasons why construction companies will choose one over the other for their projects, which we will delve into. However, it is important to note that while no make is better than the other, they do have their pros and cons.

If you are trying to choose between extruded and cold finish aluminum for your next project, keep reading.

Extruded Aluminum

To create extruded aluminum, producers will heat the aluminum until malleable, at which point it will pass through an extrusion die to attain the desired profile. This extrusion process has been around in the construction and industrial industries for quite a while, continuing to be a popular choice.

Many find aluminum extrusion ideal for their construction projects as it has a low manufacturing cost and is quite durable. What’s more, it is also quite popular, as the extrusion process makes it easy to shape lightweight parts.

Once heated and shaped into the desired form, the extruded aluminum will only continue to get stronger as it cools down and hardens.

Cold Finish Aluminum

Cold finish is commonly called cold drawing or cold rolling. Cold finish aluminum is similar to extruded, as their outcome is the same—the production, however, is different.

Cold finish is true to its name in that it is the process of shaping aluminum when at room temperature, which makes it more challenging to mold. Cold finishing will pass the aluminum through a die to create the required shape without heating it first.

Aluminum is generally more malleable when heated to higher temperatures. Construction and industrial companies will choose cold finish aluminum, as its process enhances the mechanical elements of the alloy while providing a stunning and precise finish.

Make the Choice

Now that you know the differences between extruded and cold finish aluminum, you might be wondering how to make your choice. The main difference here is in their production—extruded heats the aluminum to shape it while cold finish shapes it at room temperature.

You can achieve the same exact product finish using either of these methods. While both have their pros and cons, the final cut for construction projects is the availability of resources and materials to use in either process.

Pros and Cons

Extruded aluminum is generally cheaper, so construction projects like to use this process. What’s more, seeing as extruded aluminum is also easier to work with, it leads to quicker production times, another key benefit for companies where time is of the essence.

Cold finish aluminum is usually more expensive, as it requires a greater amount of time, tools, and materials to create the desired finish. However, cold finish aluminum creates tighter dimensional tolerances due to the reduction procedure.

What’s more, it also enhances the physical and technical assets of the aluminum, leading to fewer pieces chipping away during manufacturing.

Image Credit: High precision die mold for casting automotive aluminium parts By oyoo FILE #: 285483906

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