Pipe profile square - a metal pipe, which has a section, different from the traditional, round. Most of the profile pipes have a square or rectangular cross section. Usually, such pipes perform the functions of structural elements.
In most cases, a square shaped pipe is used as a metal bar, but a light weight, four stiffeners, and also flexural strength expands the area of its use in construction.
When bending, the main load falls on the extreme sections, so that the square tube (its core) is not subject to significant deformation, which makes it very efficient to use it for specific purposes.
A relatively small mass allows to save on metal, and also to use in more complex designs.
In addition to construction purposes, often this type of pipe can be used in the process of repair work, for framing, in outdoor advertising (to create strong structures), in the automotive industry, etc.
Almost any type of metal is used in the process of producing a square shaped pipe, but steel is the most popular.