Deformed bar reinforcing steel bar is one kind of reinforcing steel bar. Commonly, its surface has ribs which has three kinds of shape: spiral shape, herringbone shape and crescent shape. Deformed reinforcing steel bar with high strength can be directly used in the reinforced concrete structure and also can be used as prestressed reinforcing bar after cold drawing. Because of its great flexibility, it is widely used in many fields as construction material.

Deformed reinforcing steel bar is one kind of reinforcing steel bar.