Aluminum round tube supply
Round Tube 6063-T6
Source 6063-T6 aluminum round tube for fabricated frames, architectural details and industrial components. Compare metric and inch sizes, select mill, anodized or powder-coated finish, then send your cut list for a project quote.
AI-generated product illustration: silver round tube profiles with clean cut ends. Appearance does not verify alloy, temper or tolerances.
Why choose 6063-T6 aluminum tubing?
Choose the alloy, tube section and finish around the assembly rather than relying on the temper designation alone. The material characteristics below are general 6063 guidance from Hydro [3].
A finish suited to visible components
6063 responds well to anodizing and is used for architectural shapes and furniture. Define the exposed surfaces, color and appearance sample when the tube remains visible. [3]
A defined heat-treated condition
T6 means solution heat-treated and artificially aged. It identifies the material condition; it does not define diameter, wall thickness, a load rating or the strength of a welded joint. [3]
A hollow section with a clear fit specification
Specify outside diameter and wall thickness together. Add the required ID and tolerance when inserting a bush, plug or mating tube; nominal dimensions alone do not guarantee a sliding or press fit.
Product information
- Profile category
- Aluminum Tubes
- Profile series
- Round tube
- Section selection
- Outside diameter × wall thickness; metric and inch sizes listed below
- Alloy
- 6063
- Temper
- T6
- Section system
- Universal section
6063-T6 round tube size chart
The 53 size combinations below are available for quotation: 52 metric combinations documented for 6063-T6 in [1] and one inch-native section in [2]. Each row is a specific OD × wall combination, not a continuous range of interchangeable dimensions. Other dimensions can be submitted with a drawing.
| Nominal size / source | Outside diameter (mm / in) | Wall thickness (mm / in) | Nominal inside diameter (mm) | Theoretical mass (kg/m) |
|---|---|---|---|---|
| 5 × 1 mm [1] | 5 mm / 0.1969 in | 1 mm / 0.0394 in | 3 mm | 0.034 kg/m |
| 6 × 1 mm [1] | 6 mm / 0.2362 in | 1 mm / 0.0394 in | 4 mm | 0.042 kg/m |
| 8 × 1 mm [1] | 8 mm / 0.3150 in | 1 mm / 0.0394 in | 6 mm | 0.059 kg/m |
| 8 × 1.5 mm [1] | 8 mm / 0.3150 in | 1.5 mm / 0.0591 in | 5 mm | 0.083 kg/m |
| 10 × 1 mm [1] | 10 mm / 0.3937 in | 1 mm / 0.0394 in | 8 mm | 0.076 kg/m |
| 10 × 2 mm [1] | 10 mm / 0.3937 in | 2 mm / 0.0787 in | 6 mm | 0.136 kg/m |
| 12 × 1 mm [1] | 12 mm / 0.4724 in | 1 mm / 0.0394 in | 10 mm | 0.093 kg/m |
| 12 × 2 mm [1] | 12 mm / 0.4724 in | 2 mm / 0.0787 in | 8 mm | 0.170 kg/m |
| 15 × 1.5 mm [1] | 15 mm / 0.5906 in | 1.5 mm / 0.0591 in | 12 mm | 0.172 kg/m |
| 15 × 2 mm [1] | 15 mm / 0.5906 in | 2 mm / 0.0787 in | 11 mm | 0.221 kg/m |
| 16 × 1.5 mm [1] | 16 mm / 0.6299 in | 1.5 mm / 0.0591 in | 13 mm | 0.184 kg/m |
| 16 × 2 mm [1] | 16 mm / 0.6299 in | 2 mm / 0.0787 in | 12 mm | 0.238 kg/m |
| 19 × 1.5 mm [1] | 19 mm / 0.7480 in | 1.5 mm / 0.0591 in | 16 mm | 0.223 kg/m |
| 19 × 2 mm [1] | 19 mm / 0.7480 in | 2 mm / 0.0787 in | 15 mm | 0.288 kg/m |
| 20 × 1.5 mm [1] | 20 mm / 0.7874 in | 1.5 mm / 0.0591 in | 17 mm | 0.235 kg/m |
| 20 × 2 mm [1] | 20 mm / 0.7874 in | 2 mm / 0.0787 in | 16 mm | 0.305 kg/m |
| 20 × 3 mm [1] | 20 mm / 0.7874 in | 3 mm / 0.1181 in | 14 mm | 0.433 kg/m |
| 22 × 2 mm [1] | 22 mm / 0.8661 in | 2 mm / 0.0787 in | 18 mm | 0.339 kg/m |
| 25 × 1.5 mm [1] | 25 mm / 0.9843 in | 1.5 mm / 0.0591 in | 22 mm | 0.299 kg/m |
| 25 × 2 mm [1] | 25 mm / 0.9843 in | 2 mm / 0.0787 in | 21 mm | 0.390 kg/m |
| 25 × 3 mm [1] | 25 mm / 0.9843 in | 3 mm / 0.1181 in | 19 mm | 0.560 kg/m |
| 28 × 2 mm [1] | 28 mm / 1.1024 in | 2 mm / 0.0787 in | 24 mm | 0.441 kg/m |
| 28 × 3 mm [1] | 28 mm / 1.1024 in | 3 mm / 0.1181 in | 22 mm | 0.636 kg/m |
| 30 × 2 mm [1] | 30 mm / 1.1811 in | 2 mm / 0.0787 in | 26 mm | 0.475 kg/m |
| 30 × 3 mm [1] | 30 mm / 1.1811 in | 3 mm / 0.1181 in | 24 mm | 0.687 kg/m |
| 30 × 5 mm [1] | 30 mm / 1.1811 in | 5 mm / 0.1969 in | 20 mm | 1.060 kg/m |
| 32 × 2 mm [1] | 32 mm / 1.2598 in | 2 mm / 0.0787 in | 28 mm | 0.509 kg/m |
| 32 × 3 mm [1] | 32 mm / 1.2598 in | 3 mm / 0.1181 in | 26 mm | 0.738 kg/m |
| 35 × 2 mm [1] | 35 mm / 1.3780 in | 2 mm / 0.0787 in | 31 mm | 0.560 kg/m |
| 35 × 3 mm [1] | 35 mm / 1.3780 in | 3 mm / 0.1181 in | 29 mm | 0.814 kg/m |
| 38 × 2 mm [1] | 38 mm / 1.4961 in | 2 mm / 0.0787 in | 34 mm | 0.611 kg/m |
| 38 × 3 mm [1] | 38 mm / 1.4961 in | 3 mm / 0.1181 in | 32 mm | 0.891 kg/m |
| 40 × 2 mm [1] | 40 mm / 1.5748 in | 2 mm / 0.0787 in | 36 mm | 0.645 kg/m |
| 40 × 3 mm [1] | 40 mm / 1.5748 in | 3 mm / 0.1181 in | 34 mm | 0.942 kg/m |
| 40 × 5 mm [1] | 40 mm / 1.5748 in | 5 mm / 0.1969 in | 30 mm | 1.484 kg/m |
| 50 × 1.5 mm [1] | 50 mm / 1.9685 in | 1.5 mm / 0.0591 in | 47 mm | 0.617 kg/m |
| 50 × 3 mm [1] | 50 mm / 1.9685 in | 3 mm / 0.1181 in | 44 mm | 1.196 kg/m |
| 50 × 5 mm [1] | 50 mm / 1.9685 in | 5 mm / 0.1969 in | 40 mm | 1.909 kg/m |
| 60 × 3 mm [1] | 60 mm / 2.3622 in | 3 mm / 0.1181 in | 54 mm | 1.450 kg/m |
| 60 × 5 mm [1] | 60 mm / 2.3622 in | 5 mm / 0.1969 in | 50 mm | 2.333 kg/m |
| 70 × 3 mm [1] | 70 mm / 2.7559 in | 3 mm / 0.1181 in | 64 mm | 1.705 kg/m |
| 70 × 5 mm [1] | 70 mm / 2.7559 in | 5 mm / 0.1969 in | 60 mm | 2.757 kg/m |
| 80 × 3 mm [1] | 80 mm / 3.1496 in | 3 mm / 0.1181 in | 74 mm | 1.959 kg/m |
| 80 × 5 mm [1] | 80 mm / 3.1496 in | 5 mm / 0.1969 in | 70 mm | 3.181 kg/m |
| 80 × 10 mm [1] | 80 mm / 3.1496 in | 10 mm / 0.3937 in | 60 mm | 5.938 kg/m |
| 100 × 3 mm [1] | 100 mm / 3.9370 in | 3 mm / 0.1181 in | 94 mm | 2.468 kg/m |
| 100 × 5 mm [1] | 100 mm / 3.9370 in | 5 mm / 0.1969 in | 90 mm | 4.029 kg/m |
| 100 × 10 mm [1] | 100 mm / 3.9370 in | 10 mm / 0.3937 in | 80 mm | 7.634 kg/m |
| 120 × 5 mm [1] | 120 mm / 4.7244 in | 5 mm / 0.1969 in | 110 mm | 4.877 kg/m |
| 120 × 10 mm [1] | 120 mm / 4.7244 in | 10 mm / 0.3937 in | 100 mm | 9.331 kg/m |
| 150 × 5 mm [1] | 150 mm / 5.9055 in | 5 mm / 0.1969 in | 140 mm | 6.150 kg/m |
| 150 × 10 mm [1] | 150 mm / 5.9055 in | 10 mm / 0.3937 in | 130 mm | 11.875 kg/m |
| 0.897 × 0.136 in [2] | 22.7838 mm / 0.8970 in | 3.4544 mm / 0.1360 in | 15.8750 mm | 0.566 kg/m |
[1] Chalco metric tube table; [2] Testrite 0.897 in OD × 0.136 in wall tube. 1 in = 25.4 mm exactly. Inch conversions are rounded to four decimals. ID = OD − 2 × wall. Mass is independently calculated at 2,700 kg/m³: kg/m = π × (OD − wall) × wall × 0.0027, with dimensions in mm, and rounded to 0.001 kg/m. Values are nominal; mass excludes coatings, machining, packaging and manufacturing variation. These are supply sizes for quotation, not a live stock or price list.
Product illustrations
6063-T6 round tube: surface, section and finish
These images were generated with AI to illustrate product appearance. They are not photographs of inspected stock, dimensional drawings or evidence of material certification. Alloy and temper must be verified through the agreed documentation.
Estimate tube mass before requesting freight
Use nominal section area to estimate net material mass. This helps compare cut lists; it is not a shipping-weight or load calculation.
Calculate the bore
For the example 50 × 3 mm tube, nominal ID = 50 − (2 × 3) = 44 mm.
Calculate theoretical mass per metre
At 2,700 kg/m³, π × (50 − 3) × 3 × 0.0027 = 1.196 kg/m, rounded to three decimals.
Apply the cut list
20 × 1,000 mm = 20 m. Using the unrounded section mass gives approximately 23.9 kg of net tube. Add packing and any other shipment items separately.
The calculation uses ideal concentric, uniform walls and the density basis stated in [1]. Actual mass varies with dimensional tolerances and finish; rounded table values are estimates.
Choose the section around fit, fabrication and finish
Begin with the envelope and connections, then define the material and delivery requirements. A larger OD or thicker wall changes the section; neither establishes a permissible load by itself.
- For sleeves, inserts or telescoping parts, provide mating-part dimensions and the required clearance. Include ovality, straightness and ID limits if fit depends on them.
- For visible assemblies, identify the exposed faces and specify finish, color, coating requirements and protective packing before quoting.
- For fabricated or welded parts, provide joint details and the service requirements. Select the governing material and dimensional standard with the intended manufacturing route.
Surface finish options
- Mill finish
- Anodized
- Powder coated
Where 6063-T6 round tube fits the design brief
6063 is used in architectural products, railings, furniture and tube products [3]. The applications below describe selection tasks; final suitability depends on the selected section and assembly.
- Architectural details and visible tubular members
Specify the surface appearance, mounting points and exposed lengths for screens, trims or other visible assemblies.
- Furniture and display frames
Define tube diameters around joints, inserts and end caps. Confirm the assembled geometry and the finish sample together.
- Fabricated equipment frames and components
Provide the complete cut list, hole or end machining drawings, and connection requirements for review.
From selected size to a complete supply requirement
Choose a listed OD × wall pair or send another section drawing, then provide individual finished lengths, quantities, finish and destination. Include tolerances, processing details, the governing standard and documentation requirements. Price, minimum order, production length and lead time are confirmed with the quotation.
6063-T6, 6063-T5 or 6061-T6?
Separate alloy selection from temper selection. The difference affects material requirements, not just the product name.
6063-T6 versus 6063-T5
Both use alloy 6063. T5 is cooled from an elevated-temperature shaping process and artificially aged; T6 is solution heat-treated and artificially aged. Specify the required temper and its applicable property limits rather than accepting a name-only substitution. [3]
6063 versus 6061
These are different aluminum alloys. When a drawing calls for 6061-T6, do not replace it with 6063-T6 solely because the tube dimensions match. Review the governing material specification and the design requirements first.
Material standard versus tube dimensions
An OD × wall entry identifies geometry. It does not establish a manufacturing route, material test result or compliance with ASTM B221, EN 755 or another requested standard. Put the required standard, edition and documentation in the RFQ.
The supplier size sources document particular products and tables. Their certificates, processing routes, tolerances, stock claims and delivery terms are not transferred to APW by citation.
Example: a quote-ready round tube request
Use this fictional request as a checklist and replace the values with your actual project requirements.
- Material
- 6063-T6 aluminum round tube
- Section
- 50 mm OD × 3 mm nominal wall; 44 mm nominal ID
- Cut list
- 20 pieces × 1,000 mm individual finished length
- Finish
- Silver anodized; submit required appearance sample and coating specification
- Drawings and acceptance
- Attach the part drawing and required dimensional limits; state the material standard and inspection documents
- Destination
- Delivery city, country and postal code; state the requested delivery terms
Illustrative RFQ only, not a customer case, fixed SKU, tolerance commitment or confirmed delivery offer. Theoretical net tube mass is approximately 23.9 kg for this cut list; finishing, packing and manufacturing variation are excluded.
Send your tube specificationDefine what will be checked on delivery
Resolve the inspection criteria with the quotation so a nominal size does not stand in for an acceptance specification.
Dimensions and fit
Agree OD, wall thickness, length and cut-end requirements. Define ID, roundness, straightness or machining limits wherever they affect assembly.
Finish and protection
State the coating or anodizing requirement, color reference, exposed surface standard and packing needs. Mill finish is not a promise of a cosmetic, mark-free surface.
Material and processing records
List the alloy and temper verification, inspection documents, identification and traceability you require. Include post-processing and welded-joint requirements in the agreed supply specification.
Material and dimension references
Sources checked on 21 October 2026. Size and material references support the statements marked [1]–[3]. Use the agreed quotation and inspection documents to confirm the supplied material and dimensions.
- [1] Chalco Aluminum — metric aluminum tube sizesThe metric table explicitly lists availability in 6061-T6 and 6063-T6. This page uses its 52 OD × wall combinations and independently calculates ID, unit conversions and theoretical mass.
- [2] Testrite — 0.897 × 0.136 in 6063-T6 round tubeAn inch-native extruded round tube with a stated 0.897 in OD, 0.136 in wall and approximately 0.625 in ID. It is retained as its actual section rather than relabeled as a nominal 7/8 in tube.
- [3] Hydro — Alloy 6063 data sheet, June 2026 revisionManufacturer guidance on 6063 temper definitions, anodizing, applications and reduced T6 strength in a weld region. General alloy information, not product-specific acceptance data.
6063-T6 round tube purchasing questions
What is Round Tube 6063-T6?
It is a hollow circular aluminum section made from alloy 6063 in the T6 condition: solution heat-treated and artificially aged. The designation identifies alloy and temper; OD, wall thickness, length, finish and tolerances are specified separately. [3]
Which 6063-T6 round tube sizes are listed?
The chart contains 52 metric OD × wall combinations from 5 × 1 mm to 150 × 10 mm, plus a 0.897 × 0.136 in section. It lists particular combinations, not every possible wall at every diameter. Send your drawing for a size outside the table. [1][2]
How do I calculate the inside diameter?
For nominal uniform walls, ID = outside diameter − 2 × wall thickness. A 50 mm OD × 3 mm wall tube therefore has a nominal 44 mm bore. A calculated ID is not a guaranteed fit; specify the required bore limits and mating part.
How much does 6063-T6 aluminum tubing weigh?
Mass depends on both OD and wall thickness. With dimensions in mm and density 2,700 kg/m³, theoretical kg/m = π × (OD − wall) × wall × 0.0027. The listed 50 × 3 mm section is approximately 1.196 kg/m before finishing or packing. Actual mass varies with the supplied dimensions. [1]
What is the difference between 6063-T5 and 6063-T6?
T5 is cooled from an elevated-temperature shaping process and artificially aged. T6 is solution heat-treated and artificially aged. They are different temper requirements for the same alloy; specify the required condition and applicable mechanical properties instead of treating them as interchangeable. [3]
Can I substitute 6063-T6 for 6061-T6?
A matching tube size does not make different alloys interchangeable. Confirm the drawing, governing material specification, fabrication method and design requirements before accepting a substitution.
Which finishes can I request?
Mill finish, anodized and powder-coated options are listed for this product. Include color, exposed surfaces, coating requirements and any appearance sample. Alloy 6063 responds well to anodizing, but the required appearance still needs to be agreed for your order. [3]
Can 6063-T6 tube be welded or bent?
6063 can be welded, but its T6 strength can decrease in the weld region. Forming and bending also require review of the section, bend geometry and process. Send the fabrication drawing and required final condition; the supplied T6 designation alone does not establish the finished assembly properties. [3]
Does round tube size mean nominal pipe size?
This chart gives actual nominal outside diameter × wall thickness. A pipe nominal-size or schedule designation is a different ordering convention. If your drawing uses a pipe designation, provide it along with the required OD, wall and standard to avoid a mismatched section.
Are standards, stock, price and lead time fixed on this page?
The page is a size selection and quotation reference. State the required standard and edition, inspection documents, cut lengths, finish, quantity and destination. Applicable requirements, order quantity, price and lead time are confirmed with the quotation.
Compare related profile options
6063-T5 round tube
Compare the T5 tube family when your material specification permits this temper.
6061-T6 equal angle
An open angle section for projects defined by leg dimensions rather than a circular bore.
Euro T-slot 4040 aluminum extrusion
A modular framing option when adjustable slot connections are part of the design.
Turn your tube specification into a quotation
Send the selected 6063-T6 section, individual cut lengths, quantity, finish, drawings and destination.
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