Aluminium Round Tubes

Aluminium round tubes offer versatility for a wide range of applications, from lightweight projects to heavy-duty industrial uses. At 1st Choice Metals, we offer 6063T6 and 6082T6 aluminium tubes, available in a variety of sizes and wall thicknesses. Whether you need tubes for machining, structural support, or decorative purposes, our custom cutting service ensures you get the exact dimensions you need.

These high-quality seamless extruded tubes are suitable for anodising, powder coating, and polishing. Available in sizes ranging from small tubes for light engineering to larger tubes for more demanding structural work.

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Trade Account

Credit accounts & discounts area available. Simply get in tocuh and speak to us directly.

Free Cutting Service

1 x Free Cut - per line item purchased - receive the item at the exact length required for the job

Folding Service

We are able to offer our Aluminium Sheets & Chequer Plates and Stainless Steel Sheets folded to the customers specifications

We accept all types of credit and debit cards.

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Aluminium Round Tube Grades

  1. 6063T6

    • Ideal for lightweight applications such as signposts, decorative features, and general fabrication.

    • Excellent for bending, forming, and swaging.

  2. 6082T6

    • A stronger, harder grade perfect for structural applications.

    • Best suited for machining, drilling, threading, and heavy-duty use.

Our Services

  1. Free Cutting Service
    We offer free cutting on all our aluminium round tubes — one free cut per line item. Custom cuts are available to meet your specific project requirements.
    Learn more about our cutting services.

  2. Trade Accounts
    Get trade discounts and credit accounts for regular customers. Setting up a trade account is easy, and we offer discounts on bulk orders.
    Contact us directly to set up your trade account.                                     

Contact Us for Custom Orders

If you need a custom size or have a large order, contact us today. Our team is happy to provide you with a quote or discuss your specific requirements.

Imperial Size

(Outside Dia x Wall Thickness)

 Metric Conversion

(Outside Dia x Wall Thickness)

 Nominal Internal

Bore Size
5/16” x 20swg 7.98mm x 0.9mm 6.18mm
3/8” x 16swg 9.53mm x 1.63mm 6.27mm
½” x 16swg 12.7mm x 1.63mm 9.44mm
½” x 10swg 12.7mm x 3.25mm 6.2mm
5/8” x 18swg 15.88mm x 1.2mm 13.48mm
5/8” x 16swg 15.88mm x 1.63mm 12.62mm
5/8” x 10swg 15.88mm x 3.25mm 9.38mm
¾” x 18swg 19.05mm x 1.2mm 16.65mm
¾” x 16swg 19.05mm x 1.63mm 15.79mm
¾” x 10swg 19.05mm x 3.25mm 12.55mm
7/8” x 18swg 22.2mm x 1.2mm 19.8mm
7/8” x 16swg 22.2mm x 1.63mm 18.94mm
7/8” x 10swg 22.2mm x 3.25mm 15.7mm
1” x 18swg 25.4mm x 1.2mm 23mm
1” x 16swg 25.4mm x 1.63mm 22.14mm
1” x 10swg 25.4mm x 3.25mm 18.9mm
1.1/8” x 16swg 28.58mm x 1.63mm 25.32mm
1.1/8” x 10swg 28.58mm x 3.25mm 22.08mm
1.1/4” x 16swg 31.75mm x 1.63mm 28.49mm
1.1/4” x 10swg 31.75mm x 3.25mm 25.25mm
1.1/2” x 16swg 38.1mm x 1.63mm 34.84mm
1.1/2” x 10swg 38.1mm x 3.25mm 31.6mm
1.3/4” x 16swg 44.45mm x 1.63mm 41.19mm
1.3/4” x 10swg 44.45mm x 3.25mm 37.95mm
2” x 16swg 50.8mm x 1.63mm 47.54mm
2” x 10swg 50.8mm x 3.25mm 44.3mm
2.1/4” x 16swg 57.15mm x 1.63mm 53.89mm
2.1/4” x 10swg 57.15mm x 3.25mm 50.65mm
2.1/2” x 16swg 63.5mm x 1.63mm 60.24mm
2.1/2” x 10swg 63.5mm x 3.25mm 57mm
3” x 16swg 76.2mm x 1.63mm 72.94mm
3” x 10swg 76.2mm x 3.25mm 69.7mm
4” x 16swg 101.6mm x 1.63mm 98.34mm
4” x 10swg 101.6mm x 3.25mm 95.1mm
6.1/2” x ¾” 165.1mm x 19.05mm 127mm

Manufacturing Tolerances:
Please be aware that extruded aluminium tubes are not precision tubes and are subject to the relevant European +/- manufacturing tolerances for both the outside diameter and the wall thickness. Variations in either or both dimensions will influence the actual bore size of the tube. If you require further information regarding manufacturing tolerances for any of our tubes, please contact us.

 

Telescopic Tube Information:
We are often asked if any of our aluminium tubes are telescopic — that is, tubes that will fit inside or over each other with very little play. Below are the sizes of aluminium tubes that will slide together nicely:

  • 5/16” OD x 20swg Tube will fit inside 1/2” OD x 16swg Tube

  • 1/2” OD x 16swg Tube will fit inside 5/8” OD x 18swg Tube

  • 5/8” OD x 18swg Tube will fit inside 3/4” OD x 18swg Tube

  • 3/4” OD x 18swg Tube will fit inside 1” OD x 16swg Tube

There are other sizes that will fit inside each other, but often with a couple of millimetres’ play. Please refer to the sizing chart above for details of larger tubes that will slide together.

 

Common Applications for Aluminium Round Tubes
Due to its versatility, aluminium round tubes are used in many applications, including:

  • Poles: Often seen in signposts and road signs.

  • DJ Speaker Poles: Popular in the audio industry.

  • Flag Poles: A common use for aluminium tubes.

  • Lighting Rigs: Found in theatres, arenas, and nightclubs.

  • Amateur Radio: Used by radio enthusiasts for mounting aerials.

  • Automotive Industry: Includes applications like handlebars (7/8” tube size for motorbikes), intake pipes, coolant pipes, and air conditioning systems.

  • Compressed Air Systems: Used as pipework in these systems.

  • Silencers for Guns: Manufactured from aluminium tubes.

We also offer plastic end caps to suit several of our aluminium round tubes — click here to view.

FAQ

  1. What is the difference between 6063T6 and 6082T6 aluminium round tubes?
    6063T6 is ideal for lightweight applications such as decorative and general fabrication, while 6082T6 is stronger and better suited for heavy-duty structural work and machining.

  2. Can I order aluminium round tubes in custom lengths?
    Yes, we offer custom cutting for all aluminium round tubes. Whether you need a specific length or diameter, we can provide the right size.

  3. Are there any minimum order quantities for aluminium round tubes?
    There are no minimum order requirements for most sizes, and we can process small orders efficiently.

  4. What are typical applications for aluminium round tubes?
    Aluminium round tubes are commonly used in construction, machinery, automotive projects, signage, structural frameworks, and aerospace components.

  5. How do I choose the right aluminium tube size for my project?
    Consider your project’s strength requirements, weight load, and machining needs. For structural applications, a thicker wall and higher-grade material like 6082T6 is recommended.