Aluminium Tube: Sizes, Types & Buying Guide
Aluminium round tubes are one of the most versatile and widely used aluminium products in modern construction, engineering, and DI…
Aluminium round tubes are one of the most versatile and widely used aluminium products in modern construction, engineering, and DIY projects. Whether you’re looking for a lightweight, corrosion-resistant material for building frames, an elegant solution for decorative applications, or a robust component for aerospace and industrial use, aluminium tubing delivers exceptional performance. This article will guide you through aluminium tube sizes, benefits, applications, and buying tips for your projects.
What is an Aluminium Round Tube and Why is it Popular?
An aluminium tube is a hollow cylindrical extrusion made from aluminium alloy, providing a lightweight yet strong structure for many applications. Aluminium round tubes are produced by forcing raw aluminium through an extrusion die at high pressure, resulting in a precise and uniform profile. After extrusion, tubes are stretched and cutto standard or custom lengths.
These tubes are highly valued due to their strength-to-weight ratio, excellent corrosion resistance, and aesthetic appeal. Aluminium is one of the most environmentally friendly metals available because it is fully recyclable and widely used across many industries.
What Are the Key Benefits of Aluminium Tubes?
Choosing aluminium over steel or other metals comes with significant advantages:
Lightweight, High Strength – Ideal for aerospace, transport, and structural frameworks.
Corrosion-Resistant – Thanks to a natural protective oxide layer, aluminium stands up well in outdoor and marine conditions.
Easy to Work With – Aluminium tubes can be cut, drilled, and welded (MIG or TIG) with ease.
Aesthetic & Durable Finish – Available in mill finish or anodised for extra protection and a premium look.
Eco-Friendly & Recyclable – Aluminium is one of the most environmentally friendly metals available, fully recyclable with minimal energy loss.
These features make aluminium tubes suitable for many industries, from construction and DIY projects to heavy-duty engineering.
Where Are Aluminium Tubes Used in Daily Life?
Tubes are used across multiple industries and in many applications such as:
Construction: For building frames, handrails, and support structures.
Transport: In aerospace and automotive for weight reduction.
Industrial equipment: Aluminium pipes for conveying fluids.
Home projects: DIY projects like furniture, shelving, and frameworks.
Scaffolding: Aluminium scaffold tube offers safety with low weight.
Their adaptability and wide range of aluminium profiles make them indispensable in modern engineering.
What Sizes Do Aluminium Tubes Come In?
Aluminium tubes come in a range of sizes, from small 1mm wall thickness tubes to large 105mm outside diameter (OD) profiles. Common diameter sizes include:
8mm, 10mm, 15mm, 16mm, 19mm, 20mm, 22mm, 25mm, 30mm, 40mm, 50mm, 100mm
Wall thickness options: 1.5mm, 3mm, 4mm, and more.
Standard sizes are available in both metric and imperial measurements, but you can also bespeak custom dimensions. When ordering cut to size, always specify diameters and thicknesses for accuracy.
How to Choose the Right Wall Thickness for Aluminium Tubes?
Wall thickness determines the strength and rigidity of an aluminium tube. Thicker walls (e.g., 3mm or 3.25mm) are suitable for heavy loads or structural frames, while thinner walls (like 1mm or 1.6mm) are perfect for decorative or lightweight purposes.
Factors to consider:
Load-bearing needs
Application type (industrial vs decorative)
Weight considerations for aerospace or automotive use
Remember that outside diameter and wall thickness both impact strength.
What is Aluminium Round Tubing and How is it Different?
Aluminium round tubing refers to the hollow, cylindrical version of aluminium tube designed for strength and uniformity. It’s the preferred choice for fluid systems, railings, and applications where aerodynamics matter.
Unlike square or rectangular tubes, round tubing handles pressure and torsion better. Available in mill finish or anodised, these tubes provide the perfect balance between aesthetic finish and performance.
Why Choose Aluminium Round Tubing for Structural and Industrial Applications?
Aluminium round tubing offers unmatched performance in environments where weight reduction and strength are essential. From aerospace engineering to DIY projects, this material ensures durability without adding unnecessary load.
Its corrosion-resistant surface and compatibility with welding techniques like MIG and TIG make it a go-to for professionals. Plus, with a wide range of aluminium sizes available, you can always find the perfect aluminiumprofile for your needs.
What Is the Difference Between Aluminium Round Tubes and Aluminium Square Tubes?
While aluminium round tubes are popular for fluid transport and structural designs, aluminium square tubes provide more surface area and rigidity for frames, gates, and fencing. Both share the same corrosion-resistant properties, but round tubes are more common for pipes and tubing.
Explore our aluminium tube range:
Which Aluminium Alloys Are Best for Tubes – 6063 or 6082?
The most common alloys for aluminium tubes include:
6063: Known for excellent anodising properties and smooth aesthetic finish. Often used in architectural applications.
6082: Provides higher strength and durability for aerospace and heavy-duty use.
Both alloys are part of standard aluminium grades and are widely available from leading aluminium tube suppliers.
What Are Anodised Aluminium Tubes and When Should You Use Them?
Anodised aluminium tubes undergo an electrochemical process that creates a hard, corrosion-resistant coating on the surface. This enhances durability and provides a desired finish. Anodising is ideal when you need extra protection for outdoor or marine applications.
Can Aluminium Tubes Be Welded and How? (MIG & TIG Welding Explained)
Yes, aluminium tubes can be welded using MIG or TIG welding techniques. These methods ensure strong, clean joints for tubes and pipes in industrial systems. Always select a compatible filler material and maintain proper cleaning for raw aluminium materials to achieve perfect results.
Top Applications of Aluminium Round Tubes in DIY Projects and Industries
DIY furniture and shelves
Greenhouse frames
Marine fittings
Automotive roll cages
Household items and decorative structures
Aluminium tubes are a versatile product suitable for many industries, ensuring both functional and aesthetic appeal.
Final Tips Before You Buy – What to Remember About Aluminium Tubes
Before purchasing, consider:
Diameter & OD (outside diameter)
Wall thickness for strength
Alloy type (6063 or 6082)
Surface finish (mill finish or anodised)
Cutting service availability
Summary – Key Points to Remember
Aluminium round tubes are lightweight, durable, and corrosion-resistant.
Available in a range of sizes: 8mm, 10mm, 15mm, 16mm, 19mm, 20mm, 22mm, 25mm, 30mm, 40mm, 50mm, 100mm.
Wall thickness matters: choose from 1mm, 1.5mm, 3mm, 4mm based on load.
Alloys like 6063 and 6082 offer strength and finish options.
Anodised aluminium tubes provide extra durability for outdoor use.
Applications: construction, aerospace, DIY projects, automotive, marine.
Aluminium is recyclable, environmentally friendly, and widely used in many applications.
