Deformed steel bar is commonly known as hot-rolled ribbed steel bar. It belongs to small section steel and is mainly used for the
skeleton of reinforced concrete building components. In use, it is required to have certain mechanical strength, bending
deformation performance and process welding performance. The raw material billet for the production of rebar is carbon structural
steel or low-alloy structural steel treated by sedation melting, and the finished rebar is delivered in hot-rolled forming,
normalizing or hot-rolled state.