Tube rond en aluminium 6061 T4/T6/T651/6511

What Is 6061 Aluminum Round Tube?

6061 Aluminum Round Tube is made from 6061, one of the most widely used heat-treatable aluminum alloys. Its balanced mix of magnesium and silicon gives good strength after the T6/T651 aging treatment while keeping the material easy to machine and weld.

In T6 condition it delivers strong structural performance, which is why it appears across architecture, transport, and general engineering.

Available 6061 Aluminum Round Tube

Tube rond en aluminium 6061

Custom OD/wall combinations and large diameters can be reviewed on enquiry.

Spécifications et désignations équivalentes

Common standards: ASTM B221, ASTM B211, EN 755, GB/T 6892.

Composition chimique

Propriétés mécaniques selon le traitement thermique

Values below are typical for extruded or drawn product and should be confirmed against the mill test certificate for the specific temper and section.

Guide de sélection des tempéraments

• O — soft, for heavy forming.
• T4 — naturally aged; good formability with moderate strength.
• T6 — solution heat-treated and artificially aged; the standard high-strength temper.
• T651 / T6511 — T6 with stress relief by stretching (T6511 for extrusions); best dimensional stability for machining.

Caractéristiques principales

Strength-to-Weight Advantage

T6 tube gives high load capacity at low weight, ideal for frames and rails.

Soudabilité

Joins cleanly by TIG/MIG for fabricated structures.

Résistance à la corrosion

Suitable for indoor, outdoor, and light marine use with optional finishing.

Form Flexibility

Available across a wide OD/wall range for structural and decorative builds.

Applications

• Structural and architectural frames
• Handrails, guardrails, and truck bodies
• Automotive and bicycle structures
• Industrial and consumer products

Remarques concernant le traitement et la finition de surface

• Usinage : 6061 machines cleanly with standard carbide tooling; T651/T6511 give the best dimensional stability.
• Soudage : readily welded by TIG/MIG with 4043 or 5356 filler; strength in the heat-affected zone drops relative to T6.
• Anodizing & finishing: anodizing and powder coating available for appearance and added corrosion protection.
• Découpe : supplied cut to size; standard and custom lengths supported.

Documents relatifs à la qualité et contrôle qualité

• Material Test Certificate (MTC) supplied with every order, per EN 10204 3.1 where requested.
• Dimension and visual inspection on each shipment; ultrasonic or eddy-current testing available on request.
• Third-party testing such as SGS can be arranged for composition and mechanical verification when required (SGS provides a test report, not a company certification).
• Management system: ISO 9001 (quality), ISO 14001 (environment), ISO 45001 (occupational health and safety) — no year suffix.

Why Choose Linsy for 6061 Aluminum Round Tube

• Two decades of extrusion and fabrication experience from our Shenzhen facility, serving the 1000–8000 series.
• Full processing chain — CNC machining, TIG/MIG welding, laser cutting, anodizing, polishing, and powder coating handled in-house or with qualified partners.
• Documentation you can trust: MTC with every order and SGS test reports available on request.
• Cut-to-size and custom dimensions supported for most forms, with lead times typically 10–60 days depending on temper and quantity.

Ressources connexes

The following guides cover selection, temper comparison, and machining notes for this alloy. Confirm the live URLs before publishing — replace any external references with Linsy-owned blog links where available.

• Aluminium 5052 ou 6061 : Le guide ultime
• Beginner’s Guide: Comparing Aluminum 5052 H32 and 6061 T6
• Alliages d'aluminium 6061 et 7075 : Guide comparatif approfondi
• Aluminium 6061 T651 vs. 6061 T6 : faire le meilleur choix
• 3003 VS 6061 : Comparaison complète et approfondie
• Guide ultime des alliages d'aluminium forgés 7075 et 6061
• Aluminium 6061 T4 101 : Tout ce que vous devez savoir
• Angle en aluminium 6061 : Guide de choix
• Le guide ultime de la barre ronde en aluminium 6061
• Tout ce que vous devez savoir sur l'aluminium 6061 T6511

FAQ sur l'aluminium 6061

Is 6061 round tube heat-treatable?

Yes. It is supplied in O, T4, T6, T651, and T6511 tempers; T6 is standard for structural tube.

Can tubes be welded into frames?

Yes. 6061 tube is a common choice for welded frames and rails using 4043/5356 filler.

What OD and wall ranges are available?

Typical OD 6–300 mm with wall 0.5–25 mm; custom sizes on enquiry.

FAQ générale sur les commandes

Quelle est la quantité minimale de commande ?

MOQ depends on form and temper. Standard sections and tempers can start from a few hundred kilograms; custom-dimension or special-temper orders are reviewed case by case.

Quel est le délai de livraison habituel ?

For stock-available tempers, lead time is typically 10–30 days. Custom extrusion or heat-treated conditions may take up to 60 days. Confirm with our sales team at enquiry.

Can you supply cut-to-size and processing?

Yes. We offer cutting, CNC machining, welding, anodizing, and polishing. Provide your drawings or dimension list with the enquiry.

What documents come with the shipment?

Every order ships with an MTC. SGS or other third-party test reports can be arranged on request.