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Aluminum Square Tube is a lightweight structural profile that combines excellent corrosion resistance, good mechanical strength, and outstanding fabrication performance. Available in alloys such as 6061, 6063, 5052, and 3003, it is widely used for welding, machining, and modular framework construction.
Its square cross-section provides enhanced rigidity and easy connection, making it an ideal choice for architectural structures, equipment frames, furniture, transportation, and custom fabrication projects.
Square aluminum tube extrusions (including structural alloy square pipes, hollow box sections, and architectural framing tubing) serve as lightweight, high-strength structural profiles across modern building construction, industrial machinery frames, transportation equipment, and custom fabrication projects. Engineered with a square cross-section, these extruded aluminum profiles provide exceptional moment of inertia, excellent weight-to-strength ratios, and high resistance to atmospheric corrosion.
At XQJ Metal, we manufacture and supply prime-grade square aluminum tube inventory adhering strictly to international engineering specifications, including ASTM B221, EN 755, and GB/T 6892 standards. Our structural extruded lineup covers high-performance structural alloys such as 6061-T6, 6063-T5, 5052-H32, and 3003-H14, available in mill finish, clear anodized, powder-coated, and wood-grain architectural finishes.
| Alloy Grade & Temper | Standard Dimensions (Outer Width x Height) | Wall Thickness Range | Surface Processing Options |
| 6061-T6 (Structural Grade) | 12.7mm x 12.7mm to 200mm x 200mm | 1.5mm – 12.0mm | Mill Finish, Anodized, Sandblasted, Machined |
| 6063-T5 (Architectural Grade) | 10mm x 10mm to 150mm x 150mm | 1.0mm – 6.0mm | Clear Anodized, Powder Coated, Electrophoresis |
| 5052-H32 (Marine Grade) | Custom structural box sizes available | 2.0mm – 10.0mm | Mill Finish, Protective Film Coated |
Selecting the ideal alloy grade for your square aluminum tube application depends on structural load expectations, formability requirements, and surface finishing needs:
Our heavy-duty square aluminum tube profiles are widely specified across global engineering industries:
To guarantee complete compliance with international engineering contracts, every order of square aluminum tube products undergoes strict quality testing prior to dispatch:
Q1: What is the main structural difference between 6061-T6 and 6063-T5 aluminum square tubing?
A: Grade 6061-T6 provides higher mechanical yield and tensile strength, making it ideal for heavy structural load-bearing frames. Grade 6063-T5 offers superior surface finish quality and intricate extrusion capabilities, ideal for architectural and decorative applications.
Q2: Can XQJ Metal cut square aluminum tubes to specific custom lengths?
A: Yes, we provide precision CNC sawing services to supply custom cut lengths from 100mm up to 6000mm, reducing job-site fabrication waste.
To request CAD technical drawings, weight tables, or factory-direct wholesale pricing for square aluminum tube extrusions, Contact Our Aluminum Engineering Team today.
Our materials support a wide range of construction and infrastructure projects
Square aluminum tube features flat sides that simplify fabrication, fastening, and structural assembly, while round aluminum tube is generally preferred for applications involving fluid flow, rotational components, or uniform stress distribution. The appropriate profile should be selected according to the project's structural and functional requirements.
Square aluminum tube provides excellent structural stability, easy alignment, and convenient connection with other components. Its flat surfaces simplify welding, bolting, and assembly, making it an ideal choice for frames, supports, enclosures, and modular structures.
Square aluminum tube can be readily cut, drilled, welded, and assembled using standard fabrication methods. Its consistent geometry helps simplify manufacturing, improve assembly accuracy, and reduce production time for structural and industrial projects.
It offers excellent resistance to seawater corrosion and maintains strength in humid and salt-rich conditions.
No. Strength is achieved through strain hardening rather than heat treatment.
Yes. It provides excellent weldability for structural fabrication.
Yes, it is commonly applied in tanks and pressure equipment.
Yes. It provides higher strength compared with most non-heat-treated aluminum alloys.
Yes. Thickness, width and temper can be adjusted based on project demand.
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