Metallic square hollow tube on transparent background.
UltraForge Aluminium Square Tube – 76.2mm x 76.2mm x 6.3mm (3" x 3" x 1/4") – Plain Finish Extra-Strong, Rust-Proof Box Section for Custom DIY Projects, Designer Furniture Frames & Long-Lasting Structural Builds
Two metallic square hollow tubes placed side by side on a white background.
Multiple metallic square hollow tubes stacked together on a white background.
Construction worker in safety gear installing an aluminum window frame.
Craftsman assembling a square aluminum frame using a screwdriver on a wooden workbench.
Man assembling metal furniture frame with screwdriver in workshop.
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Metallic square hollow tube on transparent background.
UltraForge Aluminium Square Tube – 76.2mm x 76.2mm x 6.3mm (3" x 3" x 1/4") – Plain Finish Extra-Strong, Rust-Proof Box Section for Custom DIY Projects, Designer Furniture Frames & Long-Lasting Structural Builds
Two metallic square hollow tubes placed side by side on a white background.
Multiple metallic square hollow tubes stacked together on a white background.
Construction worker in safety gear installing an aluminum window frame.
Craftsman assembling a square aluminum frame using a screwdriver on a wooden workbench.
Man assembling metal furniture frame with screwdriver in workshop.

UltraForge Aluminium Square Tube – 76.2mm x 76.2mm x 6.3mm (3" x 3" x 1/4") – Plain Finish Extra-Strong, Rust-Proof Box Section for Custom DIY Projects, Designer Furniture Frames & Long-Lasting Structural Builds

Price:
£161.96

In stock, ready to ship

In stock, ready to ship

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Description

Power up your projects with the UltraForge Aluminium Square Tube – 76.2mm x 76.2mm x 6.3mm (3" x 3" x 1/4") – Plain Finish. Built for those who demand maximum strength and long-lasting reliability, this extra-strong box section is the perfect blend of heavy-duty durability, lightweight handling, and rust-proof performance.

Manufactured from premium-grade aluminium, this tube features a 6.3mm wall thickness, giving it exceptional load-bearing capacity for structural work while still being easier to handle than steel. Its plain finish offers a sleek, professional look and is simple to cut, drill, weld, or polish for customized designs. With natural corrosion resistance, it’s built to last in both indoor and outdoor environments.

From DIY creations and modern furniture frames to structural reinforcements and custom fabrications, the UltraForge Aluminium Square Tube delivers professional-grade results with unmatched durability.

Key Features:

  • UltraForge Strength: Industrial-grade aluminium with extra-strong 6.3mm wall thickness.

  • Exact Dimensions: 76.2mm x 76.2mm x 6.3mm (3" x 3" x 1/4") – engineered for heavy-duty use.

  • Rust-Proof & Corrosion-Resistant: Reliable performance indoors and outdoors.

  • Lightweight Yet Durable: Strong as steel but easier to handle and fabricate.

  • Plain Finish: Clean appearance, easy to modify for custom applications.

  • Versatile Applications: Ideal for DIY projects, designer furniture frames, shelving, and structural builds.

Applications:

  • DIY Projects: Frames, supports, and heavy-duty custom builds.

  • Designer Furniture: Modern table bases, shelving units, and industrial-style frames.

  • Structural Builds: Reinforcements, frameworks, and engineering applications.

  • Fabrication Work: Machine frames, prototypes, and bespoke metalwork.

Specifications:

Grade 6082T6
Size 3 in x 3 in x 1/4 in
Weight - Kg/m 4.82
Metric Size 76.2 mm x 76.2 mm x 6.35 mm
Proof Stress 260 Min MPa
Tensile Strength 210 MPa
Elongation 8 Min %
Density 2.70 g/cm³
Melting Point 555 °C
Thermal Expansion 24 x10^-6 /K
Modulus of Elasticity 70 GPa
Thermal Conductivity 180 W/m.K
Electrical Resistivity 0.038 x10^-6 Ω .m
Machinability Good
Workability - Cold Good
Weldability - Gas Good
Weldability - Arc Good
Weldability - Resistance Good
Brazeability Good

Choose UltraForge Aluminium Square Tube – where strength, style, and reliability meet to deliver materials that elevate every build.

About Us

Suppliers to Ministry of Defence, NATO, US Airforce and Most UK Councils, Schools, Universities, Hospitals & various Government departments

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