Aluminum round pipe

Aluminum round pipe

Aluminum round pipes are hollow circular metal tubes made from pure aluminum or aluminum alloys through processes such as extrusion. They have the main advantages of lightweight, corrosion resistance, and ease of processing. They are gradually replacing traditional metal materials in many fields.

Trait dimension

Aluminum and aluminum alloy hot extruded seamless round tubes

Aluminum and aluminum alloy seamless drawn (rolled) tubes

Main process

Hot extrusion one-step molding (heated aluminum billet is forcefully extruded through the mold).

Extrusion blanking + cold drawing/cold rolling finish processing (first extrude the blank tube, then perform cold deformation processing).

Essence

Basic product / Primary product

Processed products / Precision products.

Dimension accuracy and surface

Lower. The dimensional tolerance is larger. There might be indentation marks on the inner wall, and the surface is relatively rough.

Extremely high. Through precise control by the mold, the tolerance is small, the inner wall is smooth, and the size consistency is good.

Mechanical properties

The performance depends on the alloy and subsequent heat treatment (such as quenching and tempering), and the state is relatively soft.

Cold processing leads to "work hardening", resulting in significant increases in strength and hardness, with superior and uniform performance.

Production specifications

The range is extremely wide, capable of manufacturing ultra-large diameters (such as > 500mm), complex cross-sections or thick-walled pipes, with high flexibility.

Due to the limitations of the cold processing equipment, it is difficult to produce ultra-large specifications, but it is possible to achieve thinner and more precise wall thickness control.

Cost and Efficiency

High production efficiency, high utilization rate of raw materials, and relatively low costs.

There are many processes, resulting in a slow production speed, high energy consumption and mold costs, and the price is relatively high.

Typical application

For structural components with relatively low requirements for absolute precision:

•Building frames, trusses, mechanical •equipment shells, supports

•Ordinary pipes, containers

For critical components with high requirements for precision, performance and reliability:

•Aerospace hydraulic/fuel lines (SAEAMS standard)

•Automotive precision oil circuits/cooling tubes

•Hydraulic cylinder barrels, precision linear axes

•Semiconductor equipment chambers