High-precision aluminum square profiles, architectural systems, and custom extruded solutions engineered for global industrial and architectural projects.
In modern structural engineering, architectural design, and industrial automation, custom square tube aluminum sizes represent a critical building block. Known for high strength-to-weight ratios, excellent torsional rigidity, and superior corrosion resistance, hollow structural sections (HSS) made from extruded aluminum alloys serve as the backbone for curtain walls, solar framing, cleanroom superstructures, transport modules, and decorative facades.
Navigating procurement requires detailed technical insight into dimensional specifications: outer dimensions ($W \times H$), wall thickness ($t$), corner radii ($R$), and sectional moment of inertia ($I_x, I_y$). As a world-class OEM manufacturer and global exporter, Qianyu Aluminum combines 19+ years of extrusion expertise with 5-axis CNC machining, ensuring tight dimensional tolerances adhering strictly to EN 755-9, ASTM B221, and ISO 2768 standards.
Standard Imperial & Metric Cross-Section Dimensions with Corresponding Mechanical Properties
| Metric Dimensions (mm) | Imperial Dimensions (Inches) | Standard Wall Thickness ($t$) | Primary Alloy & Temper | Weight per Meter (kg/m) | Recommended Applications |
|---|---|---|---|---|---|
| 15 x 15 mm | 0.59" x 0.59" | 1.0 mm – 2.0 mm | 6063-T5 / 6063-T6 | 0.151 – 0.281 kg/m | Trim, Decorative Skirting, Interior Displays |
| 25.4 x 25.4 mm | 1.00" x 1.00" | 1.5 mm – 3.0 mm (1/8") | 6061-T6 / 6063-T5 | 0.387 – 0.725 kg/m | Fence Pickets, Modular Framing, Light Racks |
| 38.1 x 38.1 mm | 1.50" x 1.50" | 1.6 mm – 4.76 mm (3/16") | 6061-T6 / 6005A-T6 | 0.630 – 1.710 kg/m | Handrails, Solar Racking, Workstations |
| 50.8 x 50.8 mm | 2.00" x 2.00" | 2.0 mm – 6.35 mm (1/4") | 6061-T6 / 6063-T6 | 1.054 – 3.047 kg/m | Pergola Posts, Structural Gate Frames, Cleanrooms |
| 76.2 x 76.2 mm | 3.00" x 3.00" | 3.0 mm – 9.52 mm (3/8") | 6061-T6 / 6005A-T6 | 2.371 – 6.850 kg/m | Architectural Curtain Walls, Helipad Beams |
| 101.6 x 101.6 mm | 4.00" x 4.00" | 3.18 mm – 12.7 mm (1/2") | 6061-T6 / 7075-T6 | 3.376 – 12.200 kg/m | Heavy Machine Bases, Marine Pontoons, Canopy Support |
| 150 x 150 mm | 5.90" x 5.90" | 4.0 mm – 12.0 mm | 6061-T6 / 6005A-T6 | 6.307 – 17.880 kg/m | Large Span Roof Trusses, Industrial Machine Guarding |
| 200 x 200 mm | 7.87" x 7.87" | 5.0 mm – 15.0 mm | 6061-T6 / 6082-T6 | 10.530 – 29.970 kg/m | Bridge Components, High-Load Building Columns |
Optimized for fine surface finishing, anodizing brilliance, and complex thin-wall extrusions. Ideal for doors, windows, curtain walls, and decorative fencing.
Precipitation-hardened alloy with exceptional mechanical strength, excellent weldability, and corrosion resistance for heavy structural frames and machinery.
European standard structural alloys offering high bend strength and toughness for rail cars, marine pontoons, heavy trusses, and solar racking sub-structures.
Vertical manufacturing from raw primary aluminum ingots to high-precision finished extruded profiles.
Our CAD/CAM tooling department utilizes 3D extrusion simulation software to optimize metal flow, eliminate internal stress, and produce custom hollow square dies in under 48 hours.
Operating 16 automated extrusion presses ranging from 600T to 5,500T, enabling continuous production of micro-tubing up to massive 300mm structural square profiles with zero wall variance.
Equipped with vertical fluorocarbon (PVDF) lines, anodizing tanks (up to 25 microns), thermal wood grain transfer systems, and 5-axis CNC machining centers for drilling, tapping, and miter cutting.
Addressing international enterprise buyer requirements with certified testing and transparent traceability.
To eliminate common defects such as wall thickness deviation, twisting, surface scratching, or mechanical failure, Qianyu Aluminum implements 100% full-process quality control:
Our extrusions are engineered to conform with global building codes and structural standards across North America, Europe, Australia, and the Middle East:
From architectural facades to renewable energy frames, explore how custom aluminum square tubes drive performance.
Used in modern curtain wall frameworks, sunshades, and decorative louvers. Custom powder-coated and PVDF finishes provide UV protection and withstand severe coastal wind loads.
High-strength 6005A-T6 square tubes offer high torsional resistance for ground-mounted solar arrays and rooftop mounting structures, reducing overall ballast requirements.
High-density die-cast aluminum alloy floor structures and pedestal supports utilizing square tubes ensure static dissipative, high load-bearing capacity (up to 1,500 kg/m²).
Lightweight yet robust 6xxx aluminum square tubes serve as posts and rafters for customizable louvered pergolas, garden fencing, and automatic driveway gates.
T-slotted and standard smooth square profiles integrated into automated assembly lines, conveyor supports, and precision CNC equipment structures.
Anodized 6061-T6 and 5052 square tubing engineered for floating pontoon docks, gangways, helipads, and saltwater-exposed deck railings.
Qianyu Aluminum Industry boasts 19 years of professional experience in the production and manufacturing of premium aluminum materials. As a leading exporter, our facility is equipped with state-of-the-art extrusion lines, powder coating plants, and precision CNC processing equipment.
Our team comprises passionate engineers, designers, and international trade specialists committed to providing global partners with tailored solutions. From residential fences and home decoration profiles to heavy industrial extrusions, Qianyu Aluminum adheres strictly to a customer-centric philosophy, offering 100% recyclable, sustainable aluminum products.
Rigorous quality control from billet to final surface treatment.
Custom wall thickness, lengths, alloy grades, and miter cuts.
Explore specialized architectural profiles, hollow pipes, ceiling panels, and precision machined components.
High-demand industrial extrusions, precision machined tubes, and specialized structural elements exported worldwide.
Expert insights regarding custom aluminum square tube sizing, alloy selection, surface finishes, and export procedures.
We produce square tubes ranging from micro-extrusions of 10mm x 10mm (0.39" x 0.39") up to large structural cross-sections of 300mm x 300mm (12" x 12"). Wall thicknesses can be customized from thin-wall (0.8mm) to heavy-wall structural profiles (12.7mm or 0.500").
Select 6063-T5 if your priority is smooth surface aesthetic finishing, anodizing quality, or intricate architectural shapes. Select 6061-T6 if your application requires high structural yield strength (≥276 MPa), heavy load capacity, or structural welding.
Our standard extrusions conform to EN 755-9 and ASTM B221 standards. For high-precision CNC applications, we achieve tight dimensional tolerances up to ±0.05mm for cut length and ±0.1mm for cross-sectional outer dimensions.
For extreme outdoor or coastal environments, we recommend PVDF (fluorocarbon) spraying or 25-micron hardcoat anodizing. PVDF coatings resist salt spray corrosion for over 3,000 hours and offer a 20+ year weatherability guarantee.
Custom die development takes 48 hours for standard CAD drawings, with sample production completed within 7 days. Our flexible MOQ starts at 500 kg for standard custom profiles, with volume pricing advantages for full container load (FCL) orders.
Yes. Every export shipment includes full EN 10204 3.1 Mill Test Certificates detailing chemical composition, tensile yield strength, elongation percentages, and hardness test results certified by our QA laboratory.
Partner with Qianyu Aluminum Industry for high-precision custom square tube aluminum profiles. Our engineering team provides free load calculations, die design support, and rapid global quotes within 24 hours.
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