Bending pipes and tubes in aluminum

Tecnocurve performs bending and roll bending of aluminum round pipes, square tubes and section bars on a regular basis, particularly for such sectors as lighting, furniture, rail transportation, medical devices and much more.

Processing aluminum pipes, tubes and section bars

Light weight and resistance to corrosion are the primary considerations in choosing this metal for any project. On the negative side, however, the aluminum tubes available on the market have the characteristic of having very low elongation percentage, and this makes them difficult to process.

For this reason, tubes, tubular elements and section bars in aluminum can only be processed via cold bending if they are made in specific aluminum alloys that have a certain thermal status, which is a fundamental characteristic on the basis of which the average bend radius of the aluminum tube is defined.



very section bar or tube in aluminum delivered to Tecnocurve is subject to strict dimensional, quality and esthetic controls to ensure that the material is suitable for subsequent cold bending.

Quality Certification


It is possible to know the characteristics that make the aluminum compliant with the standards, on the basis of the conformity certificate supplied with it by the manufacturer.

Types of tubes in aluminum and their relative cross sections

In most cases, bending and roll bending are done on special section bars, but they can also be done on round tubes or square/rectangular tubular elements.

Round aluminum tubes

Square aluminum tube

Rectangular tubular elements

Section bars

Methods of bending and processing aluminum tubes

The tubes, section bars and tubular elements in aluminum can be bent with the regular bending method as well as roll bending. The difference consists of the average radius of the bend which, in the case of roll bending, is much wider. With the laser tube it is also possible to perform cutting operations for additional processing prior to bending, such as drilling, slotting or mitre cutting.


The initial feasibility study for bending aluminum tubes is fundamental, particularly to ensure that, given the technical characteristics of the material itself, it can be bent without breaking which, however, can only happen if the average bend radius is not properly proportioned.

Roll bending

Roll bending is the ideal method for processing this metal as, with its wider radius, it is generally preferable.
On special open section bars, we use specific equipment to limit the deformation.

Laser cutting

For optimum results on aluminum using the laser tube to cut the material, it is essential to set precise parameters and perform tests of calibration to prevent the formation of cutting burrs during processing.

Industrial sectors that use bent aluminum section bars and tubes

The bent tube in aluminum is used in many industrial sectors and is a favored material above all because of its light weight and corrosion resistance.

Examples of industrial products made with tubular elements and section bars in bent aluminum are car windows, door handles and railings on boats, light fixtures, etc.

Discover the industrial sectors in which our metal section bars in aluminum are used.

Other metals we process

In addition to bending aluminum, we are also specialized in processing tubes in steel and stainless steel:


Steel is economical, strong and easy to process with cold bending methods.

Stainless steel

Among the special features that recommend the choice of stainless steel, its corrosion resistance is the most important one.


In addition, a significant factor is the esthetic aspect, which is very important in many sectors of use.