Aluminium High Frequency Welded Tube (HFW Pipe)

Aluminium High Frequency Welded Tube is also called Aluminium HFW Pipe. It is manufactured by forming a flat strip of aluminium into a tubular shape and then joining the edges by a high-frequency-welding process, and seam welded without the use of any filler material. The welded tube is then adjusted in size until reaching the exact size and tolerances.

The welded tube is a kind of composite tube. The main difference between extruded and drawn tubes is the possibility to have a weldable layer material of different aluminium alloys. Generally, the core material is 3003 and the clad weldable alloy is 4343 or 4045. It is widely used in tubes for heat exchanger production to enable furnace or flame to braze and to give sacrificial corrosion resistance.

In addition to the welded tube with a weldable alloy, we also supply another kind of aluminium composite tube, which is an al-al composite drawn seamless tube with multi-layer material, mainly used as condenser header pipe.

Aluminium High Frequency Welded Tube

As one of the leading tubing manufacturers in China, CHAL Aluminium Corporation supplies a variety of aluminium tubes, including aluminium radiator tubes, aluminium charge air cooler tubes, condenser tubes, aluminium round tubes, micro-channel tubes, drawn tubes, seamless tubes, drawn seamless tubes, composite tubes, and welded tubes.


Our aluminium high frequency welded tubes are manufactured with high precision and extremely low tolerance to meet the customer’s specific requirements, and welded tubes can be created in a variety of different sizes and shapes from a wide range of alloys. The most common shapes are round, flat, oval, rectangular and square, thin-walled or thick-walled aluminium tubes are also available. The general standard inventory sizes and customized specifications are available for inquiry.

order process of aluminum products

Options of Aluminium Welded Tubes

  1. Flat oval welded tubes for radiators (high frequency welded radiator tube). 
  2. Tubes with inserted turbulators (high frequency welded intercooler tube).
  3. Round tubes for condenser header (parallel-flow condenser high-frequency header pipe). 
  4. Aluminium folded multi-channel tube. 
  5. Battery case for new energy automotive.

Applications of Aluminium High Frequency Welded Tubes

CHAL develops and manufactures aluminium high frequency welded tubes for a wide scope of industrial applications. The tubes are ideal for heat transfer applications where weight and space are design concerns, including in HVAC units, automotive heat exchange systems, manifolds, evaporators, and condensers. It can also be applied in electrical conduits and general tubing for plumbing and construction.

aluminium welded tube

Automotive Applications

  • Flat oval aluminium welded tubes for radiators
  • Round aluminium welded tube for condenser headers
  • Rectangular welded tubes for charge air coolers (CAC tube)
  • Thick-walled rectangular aluminium welded tube for oil coolers
  • Internal enhancements as dimples or turbulators to increase the heat transfer
  • Headers/manifolds for mobile A/C condensers and battery coolers
  • Small-diameter welded aluminium tubes for connector lines

HVAC/R Applications

  • Used as aluminium headers/manifolds for stationary condensers
  • Inner-groove welded tubes with high heat transfer performance
  • Mechanically expanded heat exchangers

Industrial Applications

  • For industrial applications, where strength and formability are important factors, high-strength materials available for high-pressure applications, such as 5xxx-series alloys with advantages of high strength and good dimensional stability can be utilized.
    Electrical conduits.
  • Ladders and scaffolding.
  • Special aluminium welded tubes for orthopedical equipment, sports adventure equipment, garden, and forestry.
  • Welded tubes with high resistant to corrosion for the desalination industry.

Supply Ability

1. High frequency welded tube
● Annual production capacity 15000T
● Six production lines of the welded tube for radiator tube, intercooler tube, oil cooler tube
2. Collector/header(manifold tube, D type tube,etc)
● Annual production capacity 5800T
● One production line
3. Turbulator
● Annual production capacity 1000T
● Twenty-eight production lines for turbulator manufacturing
4. Stamping
● Our equipment will be able to produce 30 million parts per year.
aluminum producing machines

Production Process of Aluminium Welded Tube

producing process of aluminum tube
Process of Aluminium tube production
Step 1: Load Aluminium Strip by Vacuum Chuck

Vacuum chuck, reducing knocking and touching caused by manually operating.

Process of Aluminium tube production
Step 2: Tube Forming to Shape

The flat strip is made into almost final tube shape by forming roller and led into welding station.

Process of Aluminium tube production
Step 3: Welding

There is no spark or little spark when producing at welding station.

Process of Aluminium tube production
Step 4: Welding

There is no spark or little spark when producing at welding station.

Process of Aluminium tube production
Step 5: Scraping

Two separate moveable scrapers can reduce the height of weld seam and smooth its surface.

Process of Aluminium tube production
Step 6: Calibration

Calibrated by calibration roller after being scraped.

Process of Aluminium tube production
Step 7: Cutting
Process of Aluminium tube production
Step 8: Labelling and placing onto pallet tidily