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How strong is 4040 aluminum?

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From strength to weight ratio, durability to versatility, 4040 aluminum is a popular choice among many. This post is set to discuss its strength and give you insight into selecting the right 4040 profile.



What’s 4040 aluminum 


The 4040 aluminum is a T-slot aluminum extrusion. It measures 40mm by 40mm hence the name. Also, it's a product of 6063-T5 alloy. As a result, it has a balance of strength, machinability, and rust resistance. 


4040 aluminum tensile strength 


The tensile strength of the 4040 profile is between 30,000 to 35,000 lbs per square inch. This is the maximum stress it can bear before breaking. Thus, it's suitable for applications that need load bearing and structural integrity. 


Yield strength 


The 4040 aluminum is somewhere within the range of 25000 to 30000 PSI. If exceeded, it may deform permanently. This higher yield strength means it can withstand heavy loads. But when compared to other alloys, its strength is of mid-range but higher than 6061-T6 and not as harder as 7075-T6.


What are the applications of the 4040 aluminum? 


The strength and versatility of 4040 aluminum make it suitable for various applications. Check out the following section. 


Industrial machinery 


The 4040 aluminum is a vital component in machine and automation systems. This is the framework where the conveyors, workstations, and safety enclosures will be assembled. An assembly line won't exist without it. 


Robotics and Automation


4040 is the profile for creating the robotic frames. You still will need to create guarding systems and equipment casings. Its design allows efficiency in movement, whereas strength guarantees stability. The T slot 4040 means an easy integration of sensors or actuators. 


Structural framing 


The 4040 aluminum constructs frames for various architecture, aviation, and automotive systems. It provides a lightweight yet strong framework. This can be used for machines, booths, and display systems. The design allows easy assembly, modification, and scaling. 


How to obtain the right 4040 frame 


You have to assess your requirements before buying the 4040 aluminum. So, keep in mind your project needs the consider the following. 


Strength and load-bearing capacity 


You need to determine the load and stress the 4040 aluminum will endure. This will help you on choosing the right tensile strength. 


Environmental factors 


The environment wherein the 4040 aluminum will be operating impacts the preference. Factors such as corrosion, weather elements, and temperature matter a lot, so you need something with enough strength to beat all that. 


Weight and rigidity 


There are limitations on weight. Normally if weight reduction is needed, you need a 4040 aluminum that's the thinner wall. A thicker one is sufficient for strength and durability. 

Now that you have a clear understanding, it is best to evaluate the properties of a 4040 aluminum before making the purchase. Consider the following.


The type of alloy  and compatibility 


Four thousand forty profiles are made from 6063-T5 alloys. This means a greater balance, machinability, and ability to resist rust. You have to ensure the part where the 4040 aluminum is placed is Compatible with the T slot. 4040 aluminum has a T slot which allows integration with different accessories. Be it brackets or panels. So, ensure it matches your project equipment. 


Tensile and yield strength 


You have to check the manufacturer's specs and determine if they have the right tensile strengths that match load-bearing needs. That's the only way you can save resources on the wrong products. 


The finish and coating 


Their common finishes typically include the mill fill, anodized ones, and powder coated. So, it's up to you to look at the factors like aesthetics and how they may impact durability. 

Fabrication method 


Ensure the fabrication techniques you are to use can seamlessly meet your 4040 aluminum project needs. Try assessing how cutting, drilling, or welding will look. 




So that’s it about the 4040-aluminum strength and how you can obtain one from the market. But getting the wrong 4040 aluminum from a broker can be intimidating. It helps if you source yours directly from the manufacturer. And this is the reason why the WEIYE group exists.

We have been in the industry for about 30 years, with an annual production of over 500,000 tons of aluminum products. You can rely on us not only for supply but also for technical assistance.