Aluminum pipe is a hollow profile with a circular, square or other cross section made from different flexible aluminum alloys. Pipes can be divided into categories according to the method of their production: extruded, welded or coldworked. Pipes are usually manufactured with a wall thickness varying from 0.5 to 117 mm and a diameter varying from 6 to 734 mm. They are widely used in machine building and production of equipment for petrochemical industry.