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By renxin-precision | 22 May 2023 | 0 Comments

Everything You Need to Know About Aluminum Extrusions

Aluminum extrusions are essential components in the manufacturing industry, as they provide an economical way to create complex shapes with consistent quality. They start as a cylindrical billet or log of aluminum, which is heated until it becomes malleable. Then, the metal is forced through a die, creating a continuous length of material that has a uniform shape. The extrusion process provides various benefits, such as superior strength-to-weight ratio, high corrosion resistance, and recyclability. In this blog, we will discuss everything you need to know about aluminum extrusions.


1. The Extrusion Process:
The extrusion process involves several steps, including billet preparation, loading the billet into the extrusion press, and pressing the billet through the die. The die determines the cross-sectional shape of the extrusion, which can be round, square, or custom. The extrusion then goes through a cooling process before it is cut to the desired length. Finally, the extrusion can undergo various surface treatments, such as anodizing, powder coating, or painting, to enhance its performance and appearance.

2. Extrusion Alloys:
Aluminum extrusions come in different alloys, which determine their strength, machinability, and corrosion resistance. The most common alloys used for extrusions are 6000 series alloys, which have a good balance of strength and formability. 2000 series alloys are used for high-strength applications, while 7000 series alloys are used for aerospace and structural applications. There are also newer alloys that offer benefits such as increased strength, reduced weight, and improved thermal conductivity.

3. Applications of Aluminum Extrusions:
Aluminum extrusions are versatile materials that can be used in various applications across different industries. Some common applications include architectural and construction products (windows, doors, roofing, and curtain walls), automotive and transportation components (body frames, heat exchangers, and fuel lines), consumer goods (furniture, lighting fixtures, and sports equipment), and industrial machinery (conveyors, heat sinks, and storage racks).

4. Advantages of Aluminum Extrusions:
One of the primary advantages of aluminum extrusions is their high strength-to-weight ratio, which makes them ideal for applications where weight is critical but strength cannot be compromised. Extrusions are also highly durable and corrosion-resistant, making them suitable for outdoor and marine applications. Moreover, aluminum extrusions are easily recyclable, which makes them an environmentally-friendly choice. Finally, the extrusion process provides exceptional design flexibility, allowing manufacturers to create custom shapes and intricate designs that cannot be achieved with other manufacturing processes.

5. Choosing the Right Extrusion Supplier:
When choosing an extrusion supplier, it is essential to consider their experience, quality control measures, and certifications. A good supplier should have a team of experts who can guide you through the design and development process, provide technical support, and ensure that the final product meets your requirements. The supplier should also have a rigorous quality control process, including testing and inspection, to ensure that the extrusions meet industry standards. Additionally, certifications such as ISO 9001 and AS9100 signify that the supplier has met strict quality management system requirements and can provide consistent, reliable products.


Aluminum extrusions are an essential part of modern manufacturing, offering benefits such as high strength, durability, and design flexibility. By understanding the extrusion process, alloys, and applications, it is easier to choose the right supplier and create the best product for your needs. Whether you are designing an architectural product, automotive component, consumer good, or industrial machinery, aluminum extrusions offer an economical and reliable solution that can enhance your product's performance and durability.

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