6061 T6 Aluminium Pipe
6061-T6 Aluminium Pipe Overview
6061-T6 Aluminium Pipe is a heat-treated aluminum-magnesium-silicon alloy pipe combining good strength, corrosion resistance, weldability and machinability. The T6 temper is solution heat treated and artificially aged to provide higher mechanical strength for structural and engineering applications.
SASA ALUMINUM supplies 6061-T6 aluminium pipe in round, seamless extruded, drawn seamless, square and rectangular forms for machinery, transportation, structural fabrication, marine components, pneumatic equipment and other industrial applications.
For purchasing 6061-T6 aluminium pipe, the key parameters normally include product form, manufacturing route, outside diameter or section size, wall thickness, length, applicable standard, dimensional tolerance and surface requirement.
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6061-T6 Aluminium Pipe Quick Information
Why Choose 6061-T6 Aluminium Pipe?
| Strength-to-Weight T6 heat treatment provides useful structural strength while maintaining the low density of aluminum. |
Machinability Suitable for cutting, drilling, milling and other secondary machining operations. |
Weldability Suitable for many welded aluminum structures when the welding procedure and heat-affected zone are considered. |
Corrosion Resistance Provides good atmospheric corrosion resistance for many industrial and structural applications. |
6061-T6 Aluminium Pipe Specifications
| Item | Specification |
|---|---|
| Alloy | 6061 |
| Temper | T6 |
| Material Family | Al-Mg-Si Heat-Treatable Aluminum Alloy |
| Pipe Shape | Round / Square / Rectangular / Custom Hollow Section |
| Manufacturing Route | Seamless Extruded / Drawn Seamless / Extruded Hollow Section |
| Main Standards | ASTM B241 / ASTM B210 / ASTM B221 as applicable |
| OD / Section Size | Standard and custom sizes according to product form |
| Wall Thickness | According to confirmed size and manufacturing route |
| Length | 1–12 m or Custom Cut Length |
| Surface | Mill Finish / Bright / Polished / Anodized / Custom |
| Packaging | Bundles / Protective Wrapping / Wooden Cases or Pallets as required |
6061 Aluminium Pipe Manufacturing Routes
6061 aluminum pipe can be supplied through different production routes. Selection depends on dimensional tolerance, wall thickness, section shape, structural requirements and the applicable product specification.
| Product Route | Typical Characteristic | Common Reference |
|---|---|---|
| Seamless Extruded Pipe | Seamless hollow product produced by extrusion for structural and engineering applications | ASTM B241 |
| Drawn Seamless Tube | Cold drawn for improved dimensional control and surface condition | ASTM B210 / AMS 4082 where applicable |
| Extruded Hollow Section | Round, square or rectangular hollow sections for structural fabrication | ASTM B221 where applicable |
6061-T6 vs 6063-T6 vs 6082-T6 Aluminum Pipe
6061, 6063 and 6082 are all heat-treatable 6000-series Al-Mg-Si aluminum alloys. They are commonly compared when selecting aluminum tubing or hollow sections, but they should not be considered direct equivalents.
| Feature | 6061-T6 | 6063-T6 | 6082-T6 |
|---|---|---|---|
| Material Family | Al-Mg-Si | Al-Mg-Si | Al-Mg-Si-Mn |
| Main Position | Balanced strength, machining and weldability | Excellent extrusion finish and anodizing appearance | Higher-strength structural applications |
| Relative Strength | Medium-High | Medium | High |
| Machinability | Good | Fair to Good | Good |
| Weldability | Good | Good | Good |
| Surface / Anodizing | Good | Excellent | Good |
| Typical Selection | Structural frames, machinery, marine and fabricated pipe | Architectural and decorative extrusion | Higher-load structural components |
The comparison is intended to help with preliminary material selection. Final alloy selection should consider load, fabrication, corrosion environment, surface requirements and the applicable standard.
6061 and Similar Aluminum Alloy Chemical Composition
The chemical composition comparison helps show the alloying differences between 6061 and other commonly compared 6000-series aluminum grades.
| Alloy | Si | Fe | Cu | Mn | Mg | Cr | Zn | Ti |
|---|---|---|---|---|---|---|---|---|
| 6061 | 0.40–0.80 | ≤0.70 | 0.15–0.40 | ≤0.15 | 0.80–1.20 | 0.04–0.35 | ≤0.25 | ≤0.15 |
| 6063 | 0.20–0.60 | ≤0.35 | ≤0.10 | ≤0.10 | 0.45–0.90 | ≤0.10 | ≤0.10 | ≤0.10 |
| 6082 | 0.70–1.30 | ≤0.50 | ≤0.10 | 0.40–1.00 | 0.60–1.20 | ≤0.25 | ≤0.20 | ≤0.10 |
Composition ranges are for material comparison. Final acceptance should follow the applicable standard and batch-specific material certificate.
T6 Aluminum Pipe Mechanical Property Comparison
Mechanical properties vary according to alloy, wall thickness, manufacturing route and the applicable product specification. The table below provides a practical comparison of commonly used T6 aluminum pipe grades.
| Alloy / Temper | Typical Product Route | Tensile Strength | Yield Strength | Relative Strength |
|---|---|---|---|---|
| 6061-T6 | Extruded / Drawn Pipe | Approx. 260–290 MPa depending on product route and size | Approx. 240 MPa | Medium-High |
| 6063-T6 | Extruded Tube / Hollow Section | Lower than 6061-T6 | Lower than 6061-T6 | Medium |
| 6082-T6 | Structural Extruded Tube | Generally higher than 6061-T6 | Generally higher than 6061-T6 | High |
Final mechanical requirements should be confirmed according to the specified product standard, pipe dimensions, manufacturing route and material certificate.
Need help selecting 6061, 6063 or 6082 aluminum pipe?
Available 6061-T6 Aluminium Pipe Forms
| Form | Typical Use | Key Buyer Parameters |
|---|---|---|
| Round Pipe | General structural, machinery and fabrication applications | OD / Wall / Length |
| Drawn Seamless Tube | Precision dimensions, hydraulic and engineered tubing | OD / ID / Wall / Tolerance / Straightness |
| Square Tube | Frames, supports and fabricated structures | Side × Side × Wall |
| Rectangular Tube | Frames, supports, machinery and custom fabrication | Width × Height × Wall |
Common 6061-T6 Aluminium Pipe Dimensions
6061 aluminium pipe can be supplied in a wide range of metric and imperial dimensions. Common round outside diameters from the existing product range include:
Not every outside diameter is available with every wall thickness. Final availability depends on manufacturing route, tooling, standard and order quantity.
6061-T6 Aluminium Pipe Size & Weight Reference
The original product page includes round, square and rectangular pipe dimension charts. These reference images are retained below together with selected common size and theoretical weight data.
Theoretical weights are for reference only. Final weight should be confirmed according to actual finished dimensions and production tolerances.
6061-T6 Aluminium Round Pipe

| Outside Diameter | Wall Thickness | Theoretical Weight |
|---|---|---|
| 10 mm | 0.8 mm | 0.062 kg/m |
| 12.7 mm (1/2″) | 1.0 mm | 0.099 kg/m |
| 16 mm | 1.0 mm | 0.127 kg/m |
| 19 mm | 1.5 mm | 0.223 kg/m |
| 25 mm | 2.0 mm | 0.390 kg/m |
| 30 mm | 2.0 mm | 0.475 kg/m |
| 50 mm | 2.0 mm | 0.814 kg/m |
| 60 mm | 3.0 mm | 1.450 kg/m |
| 70 mm | 3.0 mm | 1.705 kg/m |
| 90 mm | 5.0 mm | 3.605 kg/m |
6061-T6 Aluminium Square Pipe

| Section Size | Wall Thickness | Theoretical Weight |
|---|---|---|
| 16 × 16 mm | 1.0 mm | 0.162 kg/m |
| 20 × 20 mm | 1.0 mm | 0.205 kg/m |
| 25 × 25 mm | 1.0 mm | 0.259 kg/m |
| 30 × 30 mm | 1.5 mm | 0.462 kg/m |
| 40 × 40 mm | 1.5 mm | 0.624 kg/m |
| 40 × 40 mm | 2.0 mm | 0.821 kg/m |
| 50 × 50 mm | 1.5 mm | 0.786 kg/m |
| 60 × 60 mm | 2.0 mm | 1.253 kg/m |
| 100 × 100 mm | 2.0 mm | 2.117 kg/m |
6061-T6 Aluminium Rectangular Pipe

| Section Size | Wall Thickness | Theoretical Weight |
|---|---|---|
| 30 × 15 mm | 1.5 mm | 0.340 kg/m |
| 40 × 20 mm | 1.5 mm | 0.462 kg/m |
| 50 × 25 mm | 1.5 mm | 0.583 kg/m |
| 60 × 40 mm | 2.0 mm | 1.037 kg/m |
| 65 × 30 mm | 1.5 mm | 0.745 kg/m |
| 80 × 30 mm | 1.5 mm | 0.867 kg/m |
| 80 × 20 mm | 2.0 mm | 1.037 kg/m |
| 100 × 50 mm | 4.0 mm | 3.067 kg/m |
6061 Aluminium Pipe Standards
| Standard | Product Scope | Typical Application |
|---|---|---|
| ASTM B241 / B241M | Seamless pipe and seamless extruded tube | 6061-T6 seamless pipe and extruded tube |
| ASTM B210 | Drawn seamless aluminum-alloy tube | Precision drawn tubing |
| ASTM B221 | Extruded bars, profiles and tube | Extruded structural hollow sections |
| AMS 4082 | 6061-T6 drawn seamless tubing | Aerospace and precision tubing where specified |
| EN AW-6061 | European alloy designation | 6061 alloy identification |
6061-T6 Aluminium Pipe Surface Finish & Processing
| Option | Description |
|---|---|
| Mill Finish | Standard extruded or drawn aluminum surface |
| Anodizing | Surface treatment for appearance and additional surface protection |
| Polishing / Brushing | Mechanical finishing according to appearance requirements |
| Powder Coating | Decorative or protective coating when specified |
| Cut to Length | Custom finished lengths according to order requirements |
| Machining | Drilling, milling and other secondary processing according to drawings |
Applications of 6061-T6 Aluminium Pipe
6061-T6 aluminium pipe is widely used where lightweight construction, useful structural strength, corrosion resistance, weldability and machinability are required.
| Structural Frames Lightweight frames, supports and fabricated structures |
Transportation Vehicle, trailer and lightweight structural components |
Marine Components Fabricated aluminum components for suitable marine environments |
| Machinery Machine frames, sleeves, bushes and fabricated components |
Mobility Equipment Bicycle and wheelchair frame components |
Pneumatic Components Cylinder and precision hollow-section applications |

Inspection & Quality Control
Inspection can be arranged according to the applicable product standard and confirmed purchase requirements.
| Inspection Item | Purpose |
|---|---|
| Material Verification | Confirm 6061 alloy and material traceability |
| OD / Section Dimension | Verify finished outside dimensions or section size |
| Wall Thickness | Check finished wall thickness |
| Length | Verify standard or custom cut length |
| Straightness | Checked where required for precision tubing and fabrication |
| Surface Inspection | Check scratches, dents and visible production defects |
| MTC / Inspection Documentation | Provided according to confirmed order requirements |
6061-T6 Aluminium Pipe Marking & Packaging
Standard export packaging is selected according to pipe dimensions, surface condition, finished length and transportation method.
Frequently Asked Questions
What does T6 mean for 6061 aluminum pipe?
T6 means the 6061 alloy has been solution heat treated and artificially aged to achieve increased mechanical strength.
What is the difference between 6061-T6 and 6063-T6 aluminum pipe?
6061-T6 is commonly selected when a balance of structural strength, machining and weldability is required, while 6063-T6 is more commonly associated with extruded products requiring good surface appearance and anodizing quality.
How does 6082-T6 compare with 6061-T6?
6082-T6 is generally selected for higher-strength structural applications, while 6061-T6 remains widely used where balanced strength, machinability, weldability and availability are important.
What is the difference between ASTM B241 and ASTM B210?
ASTM B241 is associated with aluminum-alloy seamless pipe and seamless extruded tube, while ASTM B210 is used for drawn seamless aluminum-alloy tube. The appropriate specification depends on the required product form and manufacturing route.
Can 6061-T6 aluminum pipe be welded?
Yes. 6061 is commonly used in welded fabrication, although welding can reduce T6 strength locally in the heat-affected zone and this should be considered in the final design.
Can custom pipe lengths and machining be supplied?
Yes. Cut-to-length and secondary machining requirements can be reviewed according to pipe dimensions, tolerances, drawings and order quantity.
Are the listed weights actual or theoretical?
The listed pipe weights are theoretical reference values. Actual weight may vary according to finished dimensions, dimensional tolerances and production conditions.
Need 6061-T6 Aluminium Pipe?
Send your required pipe form, outside diameter or section size, wall thickness, length, quantity, standard and surface requirement. SASA ALUMINUM can review the specification and provide a quotation.












