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Aluminum tubes
Source: | Author:Carol | Publish time: 2021-09-18 | 91 Views | Share:

Aluminum tube is a kind of non-ferrous metal tube, which is made of pure aluminum or aluminum alloy by extrusion into a hollow metal tubular material along its longitudinal full length.

Aluminum tubes are mainly divided into the following types:

According to the shape, it is divided into square pipe, round pipe, patterned pipe, special-shaped pipe and universal aluminum pipe.

According to the extrusion method, it is divided into seamless aluminum pipe and ordinary extruded pipe

According to accuracy, it is divided into ordinary aluminum pipe and precision aluminum pipe. Precision aluminum pipe generally needs to be reprocessed after extrusion, such as cold drawing, fine drawing and rolling

By thickness: ordinary aluminum pipe and thin-wall aluminum pipe

Performance: corrosion resistance, light weight.


It is a kind of high-strength hard aluminum, which can be strengthened by heat treatment. It has medium plasticity in annealing, rigid quenching and thermal state, and good spot welding. When gas welding and argon arc welding are used, the aluminum tube tends to form intergranular cracks; The machinability of aluminum tube after quenching and cold work hardening is good, but it is poor in annealing state. The corrosion resistance is not high. Anodizing and painting methods or aluminum coating on the surface are often used to improve the corrosion resistance. It can also be used as mold material.

Advantages of aluminum tube:

First, the advantages of welding technology: the welding technology of thin-walled copper aluminum pipe suitable for industrial production is known as a difficult problem, which is the key technology of aluminum instead of copper for the connecting pipe of air conditioner.

Second, the advantage of service life: from the perspective of the inner wall of the aluminum pipe, since the refrigerant does not contain water, the inner wall of the copper aluminum connecting pipe will not be corroded.

Third, energy saving advantages: the lower the heat transfer efficiency of the connecting pipeline between the indoor unit and the outdoor unit of the air conditioner, the more energy-saving, or the better the thermal insulation effect, the more power-saving.

Fourth, excellent bending performance, easy to install and move.