Ordinary carbon structural steel is also called ordinary carbon steel. The carbon content is 0.06-0.22%, with less than 0.25% being the most commonly used. Belonging to low carbon steel, each metal grade represents the lowest yield point of the steel when the thickness is less than 16mm.

HRB400 is a steel reinforcement material with high strength and good plasticity. HR stands for "hot rolling", which essentially refers to the heating and rolling process of steel bars in the production process. B represents that its yield strength is 400 megapascals (MPa) higher than that of ordinary carbon steel.

HRB500 steel reinforcement refers to a commonly used steel material in concrete structures, which has certain strength and toughness, and can effectively enhance the bearing capacity and tensile performance of concrete. Steel reinforcement plays an important role in construction.

HRB600 steel bar is a new type of hot-rolled ribbed steel bar with high strength and good ductility. The use of HRB600 steel bar in engineering presents advantages such as saving steel bar usage and facilitating steel bar layout.

Low-carbon bright alkaline steel wire is a good general-purpose grade and is the most common type in daily life, such as hangers, electrical shelves, store displays and paper clips. It has good bending and flattening performance, is easy to form, and is conducive to welding.