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Large Diameter Aluminum Seamless Tubes2024-03-28T09:35:27+00:00

Large Diameter Aluminum Seamless Tube And Pipe

FONNOV ALUMINIUM extrudes large diameter aluminum alloy seamless tubes for industrial products.

FONNOV produce aluminum seamless round tube and seamless aluminum square tube.

FONNOV produce large diameter aluminum seamless tube with OD upto 360mm.

We produce seamless extruded aluminum tubes mainly with alloy 6061, 5052, 5083, 2024, 7075, etc.

Large diameter aluminum seamless tubes are widely used in hydrogen fuel vehicles, LNG boats and vessels, air separation system.

extruded aluminum seamless

Your Single Source Supplier of Aluminum Seamless Tubes And Pipes

Aluminum Seampless Tube Sizes

We produce seamless aluminum tubes with diameter upto 360mm.

Aluminum Seamless Tube Shapes

The seamless aluminum tube shape we produce can be round and square.

Aluminum Seamless Tube Alloys

We produce aluminum seamless pipe with alloy 6061. 7075, 2024, 5083, 5052, etc.

CNC Machining & Fabrication Service For Aluminum Seamless Tubes

We provide value-added machining and fabrication service for your seamless extruded aluminum tubes.

Supply Large Diameter Aluminum Seamless Tubes For Industrial Projects

We extrude large diameter seamless aluminum tube and pipe without any weld, to ensure consistent mechanical properties and good bearing capacity. Different alloys meet the special requirements of mechanical properties of project products.

Large diameter seamless aluminum tubes are used in a wide range of industries, including transportation, marine and vehicle industries. The large diameter seamless aluminum tubes are preferred for compressed gas storage, air separator system, as well as hydrogen fuel storage.

aluminum seamless tube for hydrogen fuel vehicles

Hydrogen Storage In Vehicles

Air Separation Equipments

Shipping LNG Vessels

large diameter aluminum seamless tube pressure vessel

Pressure Vessels

large diameter 6061 aluminum tubes for hydrogen fuel

Professional Large Diameter Aluminum Seamless Tubes Manufacturer


FONNOV produces and controls product quality in strict accordance with National Standards. We use aluminum billets that strictly in line with national standards to complete the extrusion. Our customers are all over the world, and we are quite familiar with both American Standard ASTM B221 and European Union Standard EN755 of extruded aluminum tubes. The rich experience helps us know how to meet the strict quality requirements of aluminum seamless tubes.

You Best Choice of Large Diameter Aluminum Seamless Tube Manufacturer

Do you need large diameter seamless aluminum tubes for your new project? Or, you want to develop more vendor options for your products?

Search no more. FONNOV ALUMINIUM is the right large diameter aluminum seamless tube and pipe manufacturer for this task.

  • Experience

Our manufacturing workers have built up rich, deep experience from many previous large diameter seamless aluminum tube projects, so we know what customers focus on seamless tubes and how to meet customers’ quality requests.

  • Strict Quality Test

From aluminum billets, extrusion manufacturing, heat treatment to quality tests, we are strictly in accordance with the standards.

Aluminum Seamless Tube Mechanical Properties

(Only List Aluminum Alloy 6061 5052 5083 7075 2024)

Aluminum Alloy & Temper Wall Thickness (mm) Tensile Strength
Yield Strength
Elongation /%


6061-O all ≤150 ≤110 14
6061-T4 all 180 110 14
6061-T6 ≤6.30 260 240
6061-T6 >6.30 260 240 9
6061-F all
5052-O all 170-240 70 17
5052-H112 all 170 70 15
5052-F all
5083-O all 270-350 110 12
5083-H111 all 275 165 10
5083-H112 all 270 110 10
5083-F all
7075-O ≤10.00 ≤275 ≤165 10
7075-T6 ≤6.30 540 485
7075-T6 >6.30-12.50 560 505 6
7075-T6 >12.50-70.00 560 495 6
2024-O all ≤240 ≤130 10
2024-T3 ≤6.30 395 290
2024-T3 >6.30-18.00 415 305 9
2024-T3 >18.00-35.00 450 315 9
2024-T3 >35.00 470 330 7
2024-T4 ≤18.00 395 260 10
2024-T4 >18.00 395 260 9

✣The tested value is Min.

Large Diameter Seamless Aluminum Tubes FAQ

Here are most of the questions related to large diameter aluminum seamless tubes. We hope you will find the answer to your question. If not, please leave us a message.

Do you produce seamless aluminum tubes and pipes for extreme pressures?2024-03-28T09:32:07+00:00

Yes, Fonnov manufactured the large-diameter aluminum seamless tubes and pipes for the extreme pressures that come with the applications – pressure vessels, LNG vessels, hydrogen storage in vehicles, etc. The aluminum alloys we use for the extrusions have the required combination of chemical, physical, and mechanical properties. Our quality control team is always keen to ensure that the dimensions, composition, and machenical characteristics of the extrusions are as designed. Ultimately, we have large-diameter aluminum seamless tubing that is reliable in high-pressure applications.

What are the common thicknesses for your large-diameter aluminum seamless tube and pipe?2024-03-28T09:26:20+00:00

Fonnov manufactures large-diameter seamless aluminum tubes with a variety of wall thicknesses to cater to different customer requirements. The biggest determinants for this wall thickness are the alloy, project requirement and the outside diameter of the tube or pipe. If you are looking for higher durability and strength, we would recommend you choose the thicker-walled seamless tube and pipe. There are times when the thinner tubes and pipes make more sense – when the need for lighter installations and enhanced flexibility is higher. We have countless wall thickness options so that the customer can always find the ideal option.

Can I use any alloy for a large aluminum seamless tube and pipe?2024-03-28T09:21:35+00:00

Yes, there are instances where the interchangeable use of different alloys is possible, but this depends on the project’s performance requirements. Remember that each alloy has specific pros and cons, but some projects may not be so specific. Any alloy may serve the purpose in that case. While these instances are possible, they may be rare where considerations such as weight, corrosion resistance, and material compatibility are important. The point is that you will usually need to first evaluate the specific requirements of a project before comparing the different material options for large-diameter aluminum seamless tubes and pipes.

Do the large-diameter seamless aluminum tubes and pipes require maintenance?2024-03-28T09:18:43+00:00

Yes, these items may require some form of maintenance, particularly in industrial applications where corrosion is likely to be a problem. Occasional inspection of the tubes and pipes for corrosion and wear is advisable to ensure that the system is safe and at optimal performance levels. In case there are possibilities of surface contaminants, you may want to gently clean the surface. For hydraulic systems and air separation equipment that may feature seals, consider adding some lubricant. The goal of these and other maintenance activities is to prevent/slow down wear of the aluminum seamless tubing for the safe and economical use of large-diameter seamless tubes and pipes.

How does the machinability of the different materials for these seamless tubes compare?2024-03-28T09:16:27+00:00

The different materials for the large-diameter aluminum seamless tube and pipe have varying machinability levels. This is because each of the materials has a unique blend of components, mechanical properties, and chemical properties. For instance, consider a comparison between alloys 7075 and 6061. Both are applicable for large-diameter seamless tubes and pipes but have different machinability levels. Due to its ductile nature, aluminum 6061 is easier to machine compared to aluminum 7075, which is harder and stronger. But the fact that an alloy is hard to machine doesn’t completely rule it out from a project. There are special machining techniques and tools to help machine such materials.

Can you machine the large seamless aluminum tube?2024-03-28T09:12:19+00:00

Yes, we provide 5-axis CNC machining and fabrication services for the seamless aluminum tube to add value to the products. We recognize the desire of the customer to get specific features and dimensions on the large-diameter tube and pipe, so we have this customization option. If you want to attain complex geometries with the CNC machining service, we offer that. Our experienced engineers are pleased to attend to your custom requests and always engage continually to deliver the most tailored machining solution for the large aluminum seamless tubing.

2024 Aluminum vs. 7075 Aluminum2024-03-01T06:52:00+00:00

If you are unsure which option between 2024 and 7075 aluminum is better, it is understandable. Both alloys are known for their high strength, so they could suit a project if that is the sole consideration.

But when it comes to specifics, things begin to change. For instance, if you are looking for an alloy with higher stress/stain resistance, then we would recommend the 7075 aluminum. However, use 2024 aluminum if the cyclic fatigue resistance requirements for your project are high.

The 2024 aluminum is mainly composed of aluminum, copper and magnesium. The 7075 aluminum is mainly composed of aluminum, zinc and copper.

They are all hard alloy, and widely used in aircraft parts. But the 2024 aluminum is not common for general industries.

For more comparision, click 2024 ALUMINUM VS. 7075 ALUMINUM.




Can I use 6061T6 instead of 7075T6?2024-02-29T02:59:00+00:00

Different aluminum alloy and temper is with different mechanical properties, as well as different requirement in application. Click How to Choose Aluminium Profiles: 7075T6 VS 6061T6 to see the differences of 6061T6 and 7075T6, which can help you to confirm the material that you need for production.


What is the max. width you can extrude?2023-12-05T03:13:45+00:00

The max. width that we can do depends on the exact profile shape. Please send us your CAD drawings for a brief check firstly.

The wider the cross-section, the larger the extrusion press is needed. Our largest capability is with width 750mm for some shapes. Many construction companies will be concerned about the maximum width that an aluminum extruder can do. For example, the width of the aluminum formwork usually needs to be at least 300mm.

In cooperation with top institutions in China, we offer and produce aluminum extrusions with a maximum section width of 1100mm. We are working with many famous transportation companies on large size aluminum extrusions.

Can you provide machining service for extrusion order?2023-05-04T04:13:17+00:00

We have an aluminum fabrication shop to provide CNC machining and fabrication service.
The material is not only aluminum extrusion products but also aluminum sheet panels. Please send us your CAD and 3D drawings for a quote.

Click Aluminum Machining / Fabrication to know more.

CNC Machining On Heatsinks

Profile Length for Delivery2023-02-28T03:34:32+00:00

Max. L=5800mm for 20 container ( choose 40 container if L>5900mm)

Max. L=3000mm for LCL goods by sea (contact shipping agent for goods with L>3000mm, some shipping company accept with a higher cost.)

Max. L=2000mm for EXPRESS


Delivery Ports2023-02-28T03:34:42+00:00

The ports near FONNOV are LIANYUNGANG, QINGDAO, SHANGHAI. Our suggestion:



You can consult your shipping forwarder for the most suitable delivery port.



Packing & Loading Details2023-02-28T03:34:57+00:00

aluminum extrusion packing loading-fonnovaluminium

▹Bundle Packing

Inside Packing Material: plastic protective film for each piece / plastic bag for each piece / none (optional)

Outside Packing Material: bundles by waterproof craft paper / EPE film / shrink film (optional)

▹Carton Packing

Inside Packing Material: plastic bag for each piece / none (optional)

Outside Packing Material: by carton

▹Wood Pallet Packing

Inside Packing: carton packing

Outside Packing Material: wood pallet

▹Plywood Case Packing

Inside Packing: bundle packing

Outside Packing Material: plywood case


What should I provide for a quote from you?2023-02-28T03:35:38+00:00

▹Drawing is necessary. CAD drawing for aluminum extrusion request. CAD and 3D drawing for machining and fabrication request.

▹Required quantity / aluminium alloy and temper / surface finishing / dimension tolerance / quality standard.

The information above is all needed for the price. Please let us know more about your aluminum project.


We will answer your EMAIL within 1 day!

Browse FONNOV Aluminium Categories

Standard & Custom Aluminum Extrusions

  • Aluminum Rods (Round Bars)

  • Aluminum Flat Bars
  • Extruded Aluminum Angles

  • Extruded Aluminum Beams
  • Extruded Aluminum Channels
  • Extruded Aluminum Trims

Custom Aluminum Extrusions For General Industries

  • Aluminum Extrusions for Vessels and Boats

  • Aluminum Extrusions for Airport

  • 5083 Aluminum Extrusions

Large Diameter Aluminum Seamless Tubes Manufacturer in CHINA

FONNOV ALUMINIUM is one of the leading large diameter aluminum seamless tube manufacturers and suppliers in China. Seamless aluminum tube manufaturing ensures that its mechanical properties are consistent, and the loading capability will be better than the common extruded aluminum tube.

Reach out to us now so we can help you in producing your ideal large diameter seamless aluminum tube and pipe.


Let’s get started from your ideas.

We will answer your EMAIL within 1 day!

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