Promising results have been achieved leading to the advantages which include:
- Permeation tight

- Flexible assembly
- One material throughout the entire tube
- Elimination of connections
- Increased crash integrity
- Vibration absorbent
- Cooling properties
- Recycling friendly
In addition, Hydro's flexible aluminium tube concept eases assembly of components especially in tight spaces.
Hydro's flexible aluminium tubes are available in different alloys and surface conditions. Other alloys are available upon request. By collaborating with leading universities and R&D centers, a significantly improved flexibility has been achieved, through bellow and manufacturing process design. Hydro's flexible aluminium tube is the first of it's kind on the market. By combining the latest forming theory, utilising state of the art simulation technology and Hydro's extensive aluminium processing knowledge the concept offers our customers the optimal flexible tube solution!
Some of the applications identified for Hydro's flexible aluminium tube:
- Air conditioning lines
- Power steering cooling
- Turbo draining tube
- Fuel filler tube
- Fuel lines
- Oil & Water lines
- Gas and liquid lines
Hydro's flexible aluminium tube is not restricted to the automotive industry, and is equally applicable to any application where vibration absorption, ease of installation and cooling is required. Based on many years of experience, Hydro Aluminium Precision Tubing is in the position to be a competent, co-operative partner starting at the product development stage. This often results in reduced development costs and a competitive end product with higher quality.

Various dimensional ranges depending on applications and surface conditions are available, upon request.
Alloy Designation | Surface Conditions |
Hydro Aluminium Internal designation |
According to EN 573-3 |
Uncoated tubes |
Hycot™/® PA-12 coated tubes |
| Numerical |
Chemical |
| 3103 |
EN AW-3103 |
AlMn 1 |
YES |
YES |
| 5049 |
EN AW-5049 |
AlMg2Mn0.8 |
YES |
YES |
| HA 9048 |
Long life alloy |
YES |
YES |
| External Diameter | Wall thickness |
| 8 - 40 mm |
0.7 - 2 mm |