HRB

Rebar (deformed steel bar) is vital in construction. It has ribbed surfaces, with transverse rib patterns like spiral or crescent. Classified by strength (e.g., HRB335, HRB400), HRB means Hot - rolled Ribbed Bar and the number shows yield strength in MPa. Rebar is strong, able to bear heavy loads, and has good ductility, deforming before breaking, which helps in earthquakes. Its ribs create a strong bond with concrete. It's made by turning molten iron into billets in furnaces, then heating, rolling (while ribbing), cooling, straightening, and cutting. Widely used in building houses, bridges, roads, like in beams for structural stability. Sized by nominal diameter (e.g., Φ12mm) and marked with the manufacturer's logo, grade, and size for easy ID.

Availability:

Quantity:



Inquire Add to Basket

Product Description

Rebar, short for deformed steel bar, is widely used in construction. Here's a simple introduction:

Definition and Classification

Rebar has ribs on its surface, with transverse rib shapes like spiral, herringbone, or crescent. It's classified by strength grades, such as HRB335, HRB400, and HRB500. HRB means Hot - rolled Ribbed Bar, and the number indicates the yield strength value (MPa).

Characteristics

High Strength: It can endure heavy loads due to its high yield and tensile strength.
Good Ductility: It shows obvious plastic deformation before breaking, helping structures absorb energy, especially in earthquakes.
Strong Grip: The ribs enhance the bond with concrete, allowing them to work in harmony.

Production Process

Steel - making uses converters or electric furnaces. Molten iron becomes steel billets through refining and continuous casting. The billets are heated, rolled in hot - rolling mills with rib - making during the process, and then cooled, straightened, and cut to get different - sized rebar.

Application Areas

It's a key material in building houses, bridges, and roads. In building structures like beams, slabs, and columns, rebar bears stress to ensure structural safety.

Specifications and Markings

Rebar is sized by nominal diameter, like Φ12mm, Φ14mm, etc. Its surface has markings with the manufacturer's logo, grade, and size for easy recognition.