REBARS
Periodic profile rebar - corrugated steel bars for reinforcing concrete structures. Rebars: a set of interlinked elements which, when interacting with concrete, absorb a load and can be used in the compression area, in columns. In general, two types of rebarss are used in the construction, i.e. cold-rolled (indicated by letter A) and hot-rolled (indicated by letter B). Hot-rolled products are usually produced in the form of bars, and cold-rolled products - in the form of rolls. Periodic profile rebars are distinguished by a special resistance to stretching. Conventional structural steel grades are S235, S275, S355, respectively; these numbers denote resistance level measured in N/mm2. For B500 grade rebars this indicator is 500N/mm2, which is more than twice as much as a normal steel.