Steel structures expressed in terms of tensile strength are primarily preferred for use in steel construction, bridge construction, pressure vessel and equipment manufacturing, vehicle production, and machinery construction, with considerations given to tensile stresses and yield limit values.

These steels are generally defined as unalloyed steels, with mechanical properties mainly dependent on the carbon content. However, elements such as manganese, silicon, copper, and sulfur, originating from raw materials and production methods, are also significantly influential, aside from nitrogen and phosphorus.