Aluminum is a light metal with a small specific gravity, only 1 / 3 of that of iron, and a melting point of 658 ℃. It has good thermal and conductive properties, no magnetism and good plasticity. Because of its poor toughness, soft and easy to deform, aluminum alloy is made by adding manganese, copper, magnesium, silicon and other elements into pure aluminum, which makes it tough and not easy to deform. It has become the most widely used non-ferrous metal structural material in industry.

Aluminum is an active metal, which will quickly combine with oxygen in the air and form a tough aluminum oxide film on the surface. This film can not only prevent the inner layer of aluminum from continuing to combine with oxygen and play a protective role, but also has strong resistance to many corrosive media (such as 98% concentrated nitric acid, ammonium bicarbonate, urea, vinegar wax, formaldehyde, hydrogen peroxide, etc.). The higher the purity of aluminum, the stronger the corrosion resistance.

Due to its good corrosion resistance, the aluminum alloy pipes manufactured have been widely used in the chemical industry and food industry. Aluminum alloy pipeline system (energy-saving pipeline, super pipeline, and fluid wire rod) has been widely used in European and American enterprises to transport compressed air, vacuum, nitrogen and inert gas. As a clean and efficient energy, compressed air is second only to electric power in factories and enterprises, so it is very important. The compressed air transmission pipelines supporting domestic air compressors were originally carbon steel pipes, galvanized pipes and PVC pipes. Aluminum alloy pipe refers to the metal tubular material extruded from aluminum alloy, which can have one or more closed through holes with uniform wall thickness and cross section. Aluminum alloy tubes will be widely used in automobile, ship, aerospace, aviation, electrical appliances, agriculture, electromechanical, household and other industries. Therefore, we should pay attention to that the aluminum alloy pipe is not an aluminum alloy compressed air pipe. The simplest aluminum pipe is instead.