Kastenprofile

Kastenprofile, also known as box profiles or box sections, are hollow rectangular or square cross‑section structural members used across engineering and construction. They are formed into closed, box‑like shapes that provide high torsional stiffness and favorable bending characteristics for their weight.

Manufacturing and forms: Box profiles can be produced by welding flat sheets or plates to create a rectangular or square hollow cross‑section, or by seamless or welded hollow‑section processes. In steel, common forms are rectangular hollow sections (RHS) and square hollow sections (SHS); similar hollow sections exist in aluminum and stainless steel. They may be hot‑ or cold‑formed, depending on material and application.

Geometry and properties: Box profiles come in a range of outer dimensions and wall thicknesses. The closed cross‑section enhances torsional rigidity, makes them suitable for frames and housings, and allows straightforward joining by welding, bolting, or fastening. Their flat outer faces aid mounting of hardware, panels, or equipment.

Materials and standards: Typical materials include structural carbon steel, stainless steel, and aluminum alloys. The choice affects strength, stiffness, and corrosion resistance. Box profiles are governed by regional and international standards for hollow structural sections; in Europe, hot‑formed and cold‑formed hollow sections are covered by standards such as EN 10210/10219, with other standards applying to different materials and regions.

Applications: They are widely used in construction frames, support structures, vehicle chassis, machine guards, architectural elements, and other lightweight yet stiff structural members. Their versatility and ease of fabrication make them a common choice where rectangular or square cross‑sections are advantageous.

Advantages and considerations: Advantages include high torsional stiffness, good strength‑to‑weight ratio, and convenient fabrication. Limitations can include buckling in slender, thin compartments and potential corrosion at corners if not properly protected.