6063 Aluminum Round Tube (extruded)

Name: Lightweight 6063 Aluminum Tube Round Pipe Extrusion – Frigate
Price: 249.00 USD
Availability: InStock

6063 aluminum round tube provides a refined grain structure and low impurity content, making it highly suitable for anodizing and decorative finishing. The alloy supports uniform oxide layer formation, which is critical in architectural and precision visual applications. It ensures minimal surface pitting and stable optical performance post-treatment.

Materials

Aluminum 6063 alloy, T5/T6 temper, Al-Mg-Si system composition.

Surface Finishes

Mill, anodized powder coat; improves corrosion and wear resistance.

Compliance Standards

ASTM B221, EN 755-8, RoHS compliant for industrial use.

Cross-Section Area (A)

Calculated based on OD and wall thickness using geometric formula.

Mass per Meter (m)

Depends on cross-sectional area and 6063 alloy density (2.7 g/cm³).

Product Description

With yield strength ranging from 15,000–25,000 psi (depending on temper), 6063 offers reliable performance for moderate structural loads. Its modulus of elasticity (~10,000 ksi) supports predictable deformation under stress, making it suitable for frameworks, trusses, and mechanical housings where weight and strength must be balanced.

Moment of Inertia (Ix / Iy)

Resists bending along X-axis (Ix); in round profiles, also governs Y-axis resistance.

Section Modulus (Zx / Zy)

The ratio of moment of inertia to extreme fiber distance.

Radius of Gyration (ix / iy)

The square root of inertia over area affects column buckling behavior.

Max. Axial Load (Euler Buckling)

Calculated from modulus, length, and end conditions for column failure.

Max. Load at Slot (Shear Test)

Load capacity at extruded slot contact under direct shear stress.

Torsional Constant (J)

Geometric property affecting torsional stiffness of hollow round tubes.

Max Torque (Torsional Load Limit)

Torque limit before yielding under pure torsion varies with the wall.

Elastic Deflection (100 N Load)

Vertical deflection under 100 N central load, simply supported beam.

Dynamic Load Rating

Maximum fluctuating load capacity based on fatigue and cyclic analysis.

Compatibility Tolerance

Outer diameter fits H9–H11 grade mechanical interface standards.

Machining Precision Grade

Achievable IT8–IT10 precision after extrusion or post-machining.

Fatigue Life (Slot Edge)

Cycles before failure under repeated stress at slot interface.

Thermal Expansion (ΔL @ ΔT=50°C)

Linear expansion at 50°C delta using aluminum’s expansion coefficient.

Slot Pull-Out Resistance

Force to dislodge profile slot joint using a standard connector.

Max Load Bearing at Corner Joint

Structural load at the joint with mechanical fasteners and reinforcements.

Technical Advantages

The Mg₂Si phase in 6063 enhances its natural passivation in aggressive environments. It resists pitting, galvanic corrosion, and intergranular attack—especially when anodized—making it dependable for marine, HVAC, and outdoor structural systems exposed to moisture and salt.

6063 machines cleanly with low tool wear and stable chip control. Its low hardness enables fine tolerances and minimal distortion in thin-wall sections. It also welds well, especially with ER5356 filler, producing joints with low porosity and consistent metallurgical integrity in thermal assemblies.

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Industry Applications

Architectural Frameworks

Used in curtain wall systems and window frames where uniform anodizing, corrosion resistance, and tight dimensional tolerance are critical.

Heat Exchangers

Employed for fluid-carrying tubes in HVAC and industrial cooling systems due to good thermal conductivity and corrosion resistance.

Electrical Bus Conduits

Applied in power distribution setups requiring moderate conductivity, low magnetic interference, and compatibility with anodized dielectric coatings.

Pneumatic Cylinder Bodies

Preferred for internal smoothness and roundness tolerance, enabling low-friction movement and pressure containment in air-driven actuators.

Transport Body Structures

Utilized in rail and commercial vehicle bodies where light weight, formability, and surface finish uniformity are engineering requirements.

Solar Panel Mounting Systems

Used in extruded rails and connectors due to high corrosion resistance, dimensional consistency, and ease of mechanical fastening.

Thermal Expansion and Dimensional Control

A thermal expansion rate of ~23.5 µm/m·K ensures predictable growth under heat, aiding stress analysis in composite structures. The alloy maintains dimensional stability under moderate thermal cycling, which is critical in enclosures and systems requiring tight clearances.

With ~52–56% IACS conductivity, 6063 suits low- to mid-range electrical applications. Its non-magnetic nature and anodizing capability make it ideal for EMI-sensitive environments, such as control panels, electronic housings, and cleanroom systems.

Having Doubts? Our FAQ

Check all our Frequently Asked Question

How does Frigate ensure tight OD tolerances in 6063 aluminum round tubes?

Frigate uses controlled extrusion dies combined with in-line measurement systems to maintain consistent outer diameter within ASTM B221 limits or tighter. Post-extrusion, tubes can be drawn or machined to achieve precision tolerances. This is critical for applications like hydraulic or pneumatic cylinders requiring high concentricity.

Can Frigate supply 6063 round tubes with custom surface roughness for sealing interfaces?

Frigate provides controlled internal surface finishes through precision extrusion and optional honing or polishing. Surface roughness (Ra) values can be tailored down to 0.4 µm per sealing or flow requirements. This supports reliable performance in dynamic sealing systems or fluid handling assemblies.

How does Frigate handle thermal stress in long-length 6063 tubes during cutting or machining?

Frigate applies stress-relief techniques and controlled cooling post-extrusion to minimize residual thermal stress. This reduces distortion during secondary processes like CNC machining or precision sawing. It ensures stability in assemblies requiring tight dimensional integrity across long spans.

What alloy compatibility does Frigate consider when integrating 6063 tubes with dissimilar metals?

Frigate evaluates galvanic potential differences when mating 6063 with stainless steel, copper, or other alloys. Isolation methods like anodizing, coatings, or polymer spacers are applied to prevent corrosion. This is especially important in marine and multi-metal assemblies.

Does Frigate offer simulation data or FEA support for structural applications of 6063 tubes?

Frigate provides material property data and supports integration into finite element analysis (FEA) for stress, thermal, or vibrational simulations. 6063 properties like Young’s modulus and Poisson’s ratio are standardized for modeling. This helps engineers validate designs before fabrication.