6063 aluminum square tube is a medium-strength architectural alloy with an excellent surface finish and strong anodizing response. Linsy supplies it in T5 and T6 tempers, custom sized, for frameworks, rails, displays, and decorative assemblies.
Beschikbare formulieren: square tube (other 6063 forms: square bar, flat bar, round bar, round tube)
Veelvoorkomende temperamenten: T5 / T6
Ondersteuning bij de verwerking: cut-to-length / CNC machining / anodizing / polishing
Kwaliteitsdocumenten: Bij elke bestelling een MTC-rapport
6063 aluminum square tube is a medium-strength, heat-treatable extruded profile known as architectural aluminum. It offers a clean surface finish, strong anodizing response, and good weldability, making it suitable for both structural frameworks and decorative assemblies. Linsy supplies 6063 square tube in T5 and T6 tempers, with custom outer dimensions and wall thicknesses.
| Formulier | Temper | Outer (mm) | Wand (mm) | Lengte (mm) |
|---|---|---|---|---|
| Square Tube | T5, T6 | 15 – 200 | 1 – 10 | 1000 – 6000 (custom cut) |
Dimensions can be customized. Share the outer size, wall thickness, temper, and length and we will confirm feasibility and tolerance.
Square tube is one of several 6063 shapes we supply. Related forms include 6063 square bar, flat bar, round bar, and round tube, each available in T5/T6 with custom dimensions.
| Standaard | Benaming |
|---|---|
| AA / UNS | 6063 / A96063 |
| NL | EN AW-6063 (AlMg0.5Si) |
| Common tempers | T5, T6 (also O, T4, T52) |
| Element | Composition (wt%) |
|---|---|
| Si | 0.20 – 0.60 |
| Fe | 0.35 max |
| Cu | 0,10 max |
| Mn | 0,10 max |
| Mg | 0.45 – 0.90 |
| Cr | 0,10 max |
| Zn | 0,10 max |
| Ti | 0,10 max |
| Overige (per stuk) | 0,05 max |
| Overige (totaal) | 0,15 max |
| Al | Rest |
Values below are typical for 6063 and reflect standard AA reference ranges. Actual results vary with section thickness and temper.
| Temper | Treksterkte (MPa) | Opbrengststerkte (MPa) | Elongation (%, min) |
|---|---|---|---|
| O | 90 | 55 | 25 |
| T4 | 150 | 90 | 20 |
| T5 | 185 | 145 | 12 |
| T52 | 185 | 130 | 12 |
| T6 | 240 | 215 | 12 |
T5 is cooled from extrusion and artificially aged, giving good strength with efficient production for most frameworks and displays. T6 is solution heat treated then aged, providing the highest 6063 strength for structural or load-bearing tube. Choose T6 where the design needs more margin, and T5 where finish and cost lead.
6063 square tube anodizes evenly, which is why it is widely used for visible architectural frameworks.
The alloy performs well in normal atmospheric and mildly industrial environments without extra coating.
6063 welds with standard methods and is easy to cut and assemble; note that welded zones soften locally versus the base temper.
6063 square tube cuts and machines cleanly. It is well suited to anodizing and polishing — confirm coating and tolerance needs before production. Welding is straightforward, but expect some strength loss in the heat-affected zone; design around it or specify post-weld treatment when load matters.
Every 6063 square bar shipment leaves our Shenzhen plant with a Mill Test Certificate (MTC) that reports the actual chemical analysis and mechanical results for the heat. In-house checks cover dimensional tolerance, surface condition, and temper verification. Our production system is managed under ISO 9001, ISO 14001, and ISO 45001. Where a project requires it, third-party test reports (for example SGS) can be arranged on request.
Linsy is a Shenzhen-based aluminum supplier with more than 20 years of production experience across the 1000 to 8000 series. For 6063 we support both standard extruded profiles and made-to-order sections, with in-house cutting, CNC machining, and anodizing or polishing finishes. Common tempers and sizes are held for faster turnaround, while custom dimensions are produced to order. Each order ships with an MTC so procurement and quality teams can verify the material before it enters production.
For deeper background on this alloy, see our guide: Ultimate Guide to 6063 Aluminum Extrusions-Experts’ Tips. It covers temper selection, machining notes, and typical application examples useful when specifying material.
We commonly supply T5 and T6; other tempers such as O, T4, and T52 can be arranged on request.
Typical square tube runs from about 15 mm to 200 mm outer, with wall thickness 1–10 mm. Custom sizes are available on confirmation.
Yes. 6063 welds well with standard processes, though the welded area softens relative to the base temper.
Standard tempers and sizes are usually available within 10–60 days. Custom extrusion or machining lead times depend on section complexity and order volume — we confirm a date when the specification is fixed.
Yes. A Mill Test Certificate is issued for every shipment, reporting chemical composition and mechanical properties for the supplied heat.
Yes. We cut to length and produce custom cross-sections and tempers on request. Share your drawing or required dimensions and we will confirm feasibility.
Common options include mill finish, anodizing, and polishing. Specific finishes should be confirmed against your application and tolerance needs.
Our management system is certified to ISO 9001, ISO 14001, and ISO 45001. Third-party test reports such as SGS can be provided on request for specific orders.
Linsy Voordelen
Linsy Aluminum is een toonaangevende leverancier van aluminiumverwerkingsproducten en levert aan diverse industrieën, waaronder de ruimtevaart, algemene machinebouw, automobielindustrie, scheepvaart, scheepsbouw en andere gespecialiseerde industriële toepassingen.
We zetten ons in om de hoogste kwaliteits- en milieunormen te handhaven, zoals blijkt uit onze certificeringen: ISO 9001:2008, ISO 14001:2004 en SGS.
