Aluminum alloy pipes come in a wide variety of types and are used across numerous industries. These pipes can be manufactured using several methods, including hot extrusion, cold extrusion, cold rolling, cold drawing (such as coil stretching), cold bending, welding (combining cold forming with high-frequency welding), spinning, and continuous extrusion. Today, the range of aluminum alloy pipe options has expanded to include thousands of different varieties. Depending on wall thickness, they are generally classified into thin-walled and thick-walled pipes. Thick-walled pipes are typically produced through hot extrusion, with wall thicknesses ranging from 5 to 35 mm. Large extruders can even produce pipes with walls over 65 mm thick. Thin-walled pipes, on the other hand, are often made using cold deformation techniques such as hot extrusion, cold extrusion, cold rolling, or cold drawing. Their typical wall thickness ranges from 0.5 to 5 mm. With advancements in cold-rolling technology, along with the development of spinning and welded pipe manufacturing, the minimum wall thickness of aluminum alloy pipes can now go below 0.1 mm. In terms of size, aluminum alloy pipes can be categorized into large-diameter thick-walled pipes, large-diameter thin-walled pipes, and small-diameter thin-walled pipes. In terms of cross-sectional shape, they can be circular, elliptical, drop-shaped, oblate, square, rectangular, hexagonal, octagonal, pentagonal, trapezoidal, ribbed, or other custom-shaped tubes (see Figure 3-2-4). Additionally, pipes can have either a constant cross-section or a variable cross-section along their length. Based on the production method, aluminum alloy pipes can be divided into hot-extruded tubes, cold-extruded tubes, cold-rolled tubes, spun tubes, welded tubes, spiral tubes, coil-stretched tubes, bimetallic tubes, bonded tubes, and more. Each method offers unique advantages depending on the desired properties and application requirements. Aluminum alloy pipes are also used in a wide range of applications. They serve as conduits for both military and civilian purposes, as casing tubes, container tubes, drilling tubes, heat exchangers, condensers, evaporators, nozzles, irrigation systems, flagpoles, utility poles, and power collection devices. They are also commonly found in decorative elements, household items, and structural components across various industries. Tianjin Alcoa International Trade Co., Ltd. , https://www.tjalcoa.com
Variety and use of aluminum alloy pipe