2x2 4x4 Aluminum Squre Tube Stock
Aluminum square tube is a hollow extruded profile with equal outer dimensions on all four sides and uniform wall thickness throughout. Produced primarily in 6061-T6 and 6063-T5 alloys, it combines a high strength-to-weight ratio with corrosion resistance and dimensional consistency, making it a structural staple in construction framing, machine bases, conveyor systems, and architectural applications. Available in outer sizes from 10×10mm to 300×300mm and wall thicknesses from 1.0mm to 12mm, it can be cut, welded, drilled, and anodized to suit specific design and load requirements.
Aluminum square tube specifications
| Parameter | Specification / Range |
|---|---|
| Shape | Square (equal sides) |
| Size Range (Side Width, A) | 10 mm – 300 mm (or 0.5” – 12”) |
| Wall Thickness (t) | 1 mm – 12 mm |
| Corner Radius (R) | 0.5 – 3.0 mm (typical) |
| Length | Up to 6,000 mm (20 ft) standard; custom cutting available |
| Tolerance | ±0.15 mm to ±0.50 mm (depends on side and wall) |
| Aluminum Alloy | 6063, 6061, 6082, 6005A, 5052, 7075 |
| Temper (Heat Treatment) | T4, T5, T6, T66, H112 |
| Surface Finish | Mill finish, anodized, powder-coated, brushed, polished |
| Standards | ASTM B221, EN 755-9, GB/T 6892 |
Metric(mm) → Imperial(inch)：
| mm | inch |
|---|---|
| 10 mm | 0.39" |
| 25 mm | 0.98" ≈ 1" |
| 50 mm | 1.97" ≈ 2" |
| 100 mm | 3.94" ≈ 4" |
| 150 mm | 5.91" ≈ 6" |
| 200 mm | 7.87" ≈ 8" |
| 300 mm | 11.81" ≈ 12" |
Aluminum square tube radius corners
| Tube Size (Side Width) | Common R Range | Description |
|---|---|---|
| ≤ 20 mm | R = 0.5 – 1.0 mm | Small decorative or frame tubing |
| 25–50 mm | R = 1.0 – 1.5 mm | Standard structural and architectural tubing |
| 60–100 mm | R = 1.5 – 2.0 mm | Medium-heavy section |
| ≥ 100 mm | R = 2.0 – 3.0 mm | Large structural square tubes |
| Custom extrusions | Up to R = 5.0 mm | Optional for aesthetic or stress design requirements |
Aluminum square tube 6061 vs 6063 vs 6082 vs 7075 vs 5052
| Alloy | Key Features | Main Uses |
|---|---|---|
| 6063-T5/T6 | Excellent surface finish, corrosion resistance, easy to anodize | Windows, doors, frames, furniture, decoration |
| 6061-T6 | High strength, good machinability, weldable | Machinery, vehicles, marine, structural frames |
| 6082-T6 | Stronger than 6061, better fatigue resistance | Industrial frameworks, cranes, transportation |
| 7075-T6 | Ultra-high strength, aerospace-grade | Defense, aviation, robotics, performance machinery |
| 5052-H112 | Non-heat treatable, superior corrosion resistance | Marine, chemical, outdoor applications |
Surface finish options
Our aluminum square tubes are available in various finishes to meet both functional and aesthetic needs:
Mill Finish – clean extrusion surface for further machining or coating.
Anodized – enhanced corrosion resistance and surface hardness.
Powder-Coated – wide color options and weather protection.
Brushed / Polished – decorative finishes ideal for interior design and display systems.
These finishes not only extend service life but also elevate the appearance of aluminum square stock used in architectural or consumer-facing applications.
Aluminum square tube application range
Architecture & Construction
Automotive & Transportation
Industrial Equipment
Furniture & Decoration
Marine & Outdoor Structures
Aerospace & Precision Systems
Contact Us
Whether for architectural elegance, industrial robustness, or mechanical precision, square aluminum tubing can be customized to suit your exact project demands.We supply a complete range of sizes and alloys, including 1x1, 2x2, and 4x4 aluminum square tubing, available in mill, anodized, or powder-coated finishes.Each extrusion is produced to ASTM B221 / EN 755-9 standards with guaranteed dimensional accuracy and surface quality.
Contact our sales team for technical consultation, custom dimensions, or sample requests.We provide tailored solutions for structural, decorative, and precision engineering applications worldwide.
