GB/T 38937-2020Steel for the reinforcement of concrete vocabulary (English PDF)

2.1 Type

2.1.1

Reinforced concrete steel bars reinforcement for reinforcementofconcret

Wires or rods applied in an untensioned state to improve the tensile or compressive capacity of concrete structures.

2.1.2

Ordinary hot-rolled steel bars hotroledbars

Rebar delivered in hot rolled condition.

2.1.3

Hot-rolled fine-grained steel bars hotroledbarsoffinegrains

In the process of hot rolling, the fine-grained steel bars formed by controlled rolling and controlled cooling process have a grain size of 9 or finer.

2.1.4

Cold-rolled ribbed bar coldeledribbedbars

After cold rolling, the hot-rolled wire rods have steel bars with horizontal ribs evenly distributed along the length direction.

2.1.5

High ductility cold-rolled ribbed bar coldeledribbedbarswithimprovedelongation

Cold rolled ribbed steel bars with high ductility obtained by hot rolling round rods through cold rolling forming and tempering heat treatment.

2.1.6

Waste heat treatment reinforcement quenching and self-temperingribbedbars

After hot rolling, the surface treatment cooling is carried out by the principle of heat treatment, and the finished steel bar obtained by tempering treatment is completed by using the residual heat of the core.

A ring-shaped quenched self-tempering structure is formed on the base circle.

2.1.7

Corrosion resistance reinforcement bars

According to the different types of rebar use environment, such as industrial atmospheric corrosion environment and chloride ion corrosion environment, add an appropriate amount of corrosion resistance to steel

Alloying elements, such as Cu, P, Cr, Ni, Mo, RE, etc., make it have corrosion resistance, and are delivered in hot rolled or controlled rolling controlled cooling conditions.

2.1.8

High corrosion resistance alloy reinforcement highcorrosionresistancealoyrebars

A certain amount of corrosion-resistant alloy elements, such as Cr, Mo, Cu, Sn, etc., are added to the steel to make it a steel bar with high corrosion resistance.

2.1.9

Stainless steel reinforcement stainless steelbars

Rebar with the main features of stainless and corrosion resistance.