The linear expansion coefficient of copper pipe is very small, which is 1/10 of that of plastic pipe. It will not cause stress fatigue fracture due to excessive thermal expansion and cold contraction. Light weight, good thermal conductivity and high low-temperature strength. It is often used to manufacture heat exchange equipment (such as condenser). It is also used for assembling low-temperature pipeline in oxygen production equipment.

For twisted tubes with the same inner diameter, the thickness of ferrous metal is not required for copper tubes. When installing, the copper pipe has the advantages of lower transportation cost, easier maintenance and smaller space occupation. Copper can change its shape. Because the copper tube can be bent and deformed, it can often be made into elbows and joints. Smooth bending allows the copper tube to be bent at any angle.