Key Takeaways
- Aluminium tube is lighter than steel, corrosion-resistant, and ideal for construction, trailers, marine, automotive, and DIY projects
- Buyalength supplies round, square, and rectangular aluminium tube cut to your lengths and shipped Australia-wide
- Order single pieces or bulk quantities online with instant pricing—no minimum order
- Choose from common sizes and wall thicknesses, then add products to your cart for fast delivery
Aluminium Tubes – What They Are & Why They’re Popular
Aluminium tubes are highly versatile components prized for their lightweight, corrosion resistance, and strength-to-weight ratio.
These hollow extruded profiles can be formed by extrusion, welding, or drawing processes—differing from solid bar (no internal void) and pipe (sized by internal bore).
The lightweight nature of aluminium tubes reduces overall construction costs while being about one-third the weight of steel.
Aluminium naturally forms a protective oxide layer that resists rust and atmospheric damage, making it suitable for outdoor and marine environments.
Common applications in Australia include building frames, transport (utes, caravans, trailers), marine fit-outs, agriculture, shopfitting, and home DIY.
Aluminium tubes are commonly classified by their cross-sectional shape, production method, and alloy grade.
Browse aluminium tube at Buyalength to find your sizes cut to length.
Aluminium Tubes in Australia
Aluminium tubes stocked in Australia typically comply with AS/NZS specifications.
Stock lengths run 6.0 m, but Buyalength lets you order custom shorter lengths online—reducing waste and freight issues.
Aluminium structures require minimal maintenance compared to timber or steel due to their resistance to rust, performing exceptionally in coastal areas like Sydney, Brisbane, Perth, and Darwin.
Buyalength ships to metro and regional Australia for trade and DIY customers.
About Aluminium Round Tubes
Round tubing is the most common shape for distributing stress evenly, ideal for bending and joining.
Round tubes are used for structural frameworks, plumbing, HVAC, and automotive components—plus handrails, bike racks, and furniture.
Sizes are measured by outside diameter (e.g., 19 mm, 25.4 mm, 50.8 mm) with wall thickness (1.6 mm, 2.0 mm, 3.0 mm).
The most common alloys used belong to the 6000 series—6061-T6 is known as the ‘Workhorse’ alloy, highly versatile and strong, while 6063 aluminium is better suited for complex extrusions and finishing than 6061 and ideal for anodising.
Aluminium is highly ductile and can be easily extruded, bent, and shaped, allowing for innovative designs. Buyalength tubes suit cutting, drilling, TIG/MIG welding, and powder coating.
Other Aluminium Tube Shapes: Square & Rectangular
Square and rectangular tubes offer higher structural rigidity than round tubes and are preferred in construction for building frames.
They’re used where directional strength is needed—gates, fences, balustrades, workbenches, and trailer frames.
Popular square sizes include 20 x 20, 25 x 25, and 50 x 50 mm. Rectangular tube (e.g., 25 x 50, 50 x 75 mm) suits roof racks, cross-members, and canopy frames.
Oval and flat oval tubes are frequently used in architectural applications and for producing aerodynamic components.
Multiple wall thicknesses let you match strength to your project. Mix shapes in one order—all cut to custom lengths.
Aluminium vs Steel Tubes – What to Choose?
Aluminium is generally lighter than steel, making it easier to handle and transport. Aluminium tubes do not rust or corrode, while steel tubes are prone to rusting if not properly treated.
Steel has higher strength compared to aluminium, allowing it to absorb more shock, stress, and deflection.
Aluminium maintains its strength in extreme cold and moderate heat but may lose structural integrity at temperatures exceeding 400°F.
Aluminium is an excellent conductor of heat and electricity, preferred for HVAC systems and electrical conduits—conducting heat about three times faster than steel.
For caravan mods, garden structures, and light racks, aluminium from Buyalength is usually sufficient and easier to work with standard tools.
5052 aluminium offers exceptional corrosion resistance and is particularly suited for marine applications.
Choosing the Right Aluminium Tube for Your Project
Selection depends on load, span, environment, and appearance. Consider shape (round vs square vs rectangular), outside dimensions, and wall thickness.
Aluminium tubes are often finished with anodizing or powder coating to improve aesthetics and durability.
For coastal projects, use marine-suitable fixings. Aluminium is 100% recyclable without losing its physical properties, requiring only about 5% of the energy needed for primary production.
Contact Buyalength for help checking sizes before ordering.
Ordering Aluminium Tube Online from Buyalength
Visit the Buyalength page, select your tube type and sizes, enter cut lengths, and see live pricing.
Order a single piece for repairs or bulk for trade jobs—add to cart and checkout.
Benefits include reduced on-site cutting, less scrap, easier transport, and fast dispatch. All rights reserved for a streamlined experience designed for Australian customers.
Shop aluminium tube now at Buyalength.com.au
FAQ – Aluminium Tube
What lengths of aluminium tube can I order from Buyalength?
Standard mill lengths are around 6.0 m, but you can specify shorter custom cut lengths online—paying only for what you need plus cutting.
Is there a minimum order quantity for aluminium tube?
No. Order a single length for small jobs or multiple lengths for trade work—subject only to freight practicality.
Can I weld, drill and tap Buyalength aluminium tube?
Yes. Stocked tubes suit MIG/TIG welding, drilling, and tapping.
They are often used for structural purposes, such as building frames, support structures, and scaffolding.
Aluminium tubes are also utilized for fluid transfer applications, such as transporting water, oil, and gas.
Is aluminium tube suitable for coastal or marine environments?
Aluminium’s natural oxide layer performs well outdoors and in coastal conditions. Combine with powder coating and marine fixings for long-term durability.
How accurate are the cut lengths supplied?
Buyalength cuts to practical workshop tolerances for construction and fabrication. Discuss tight engineering tolerances before ordering.
