TUBING USED IN MICRO EXTRUSIONS
Precision tubing has a range of sizes due to the problem it is solving. The smallest extruded tubes have a diameter as low as 0.094 inches and wall thickness as low as 0.010”, whereas the driveshaft of a police vehicle uses a 4” tube.
In climate control, an array of microchannels is more efficient than large tubing due to the high surface area, and the reduced volume of fluid to manage temperature. Large tubing is used to move the fluid between evaporators and condensers.
Outside of thermal management, tubing is found in the brake system to transfer hydraulic fluid, a safety critical application. In the transfer of power from the engine to the wheels, an extruded driveshaft is carrying the load.
Source: Hydro