Hohlrohre

Hohlrohre, meaning "hollow tubes" in German, refers to a general category of cylindrical objects with an internal cavity. These structures are fundamental in many aspects of engineering, construction, and everyday life due to their inherent properties. The hollow nature of these tubes provides a high strength-to-weight ratio compared to solid rods of the same material and dimensions. This efficiency makes them ideal for applications where structural integrity is required without unnecessary mass.

Common materials used for hohlrohre include metals such as steel, aluminum, and copper, as well as plastics like PVC and PEX, and even composite materials. The choice of material depends on the specific application's requirements for strength, flexibility, corrosion resistance, and cost.

The applications of hohlrohre are vast. In construction, they form the basis of scaffolding, structural beams, and pipework for plumbing and ventilation. In the automotive and aerospace industries, they are used for exhaust systems, fuel lines, and structural components. Everyday examples include the tubes of pens, the handles of tools, and the legs of furniture. The simplicity of their form belies their critical role in countless functional designs.