Deformed bar is deformed steel bars, also called a row of steel bars or prestressed steel bars. It is a deformed steel bar with ribs, threads, or other shapes on the surface to increase the bond with concrete. Wanzhi Steel specializes in the production of deformed bars, round bars, epoxy coated steel bars, such as d12 reinforcing steel, hot rolled deformed bars, astm reinforcing steel, cold twisted deformed bars, n12 deformed bar, y12 deformed bar are all our hot-selling types. You are welcome to contact me for a quote~

Item	Deformed bar
Grade	HRB400/500/335
Length	6M 9M 12M
Standard	ASTM AISI JIS DIN GB
Diameter	6mm 9mm 12mm 10mm 16mm 22mm 30mm
Processing Service	Bending, Welding, Decoiling, Cutting, Punching
Material	HRB335 HRB400 HRB400E HRB500 HRB500E
Shape	Round Deformed Steel Bar
Technique	Hot Rolled / Cold rolled
MOQ	2Tons
Steel Grade	HRB400/500/400E/500E/ASTM A615/BS4449

Deformed bar features

1. Strong bonding: The ribs or threads on the surface of the deformed steel bar can be more effectively embedded in the concrete, forming a mechanical anchor, thereby enhancing the bonding with the concrete.

2. High tensile strength: It can disperse stress more effectively when subjected to tension, thereby improving tensile strength.

3. Improved construction performance: The shape and size design make it easier to hold and position during construction, which helps to improve construction efficiency.

Deformed bar Uses

They are widely used in various reinforced concrete structures, such as bridges, houses, roads, etc. They are usually used as stress-bearing steel bars and structural steel bars, and are also commonly used in prestressed concrete structures. Through processes such as tensioning and anchoring, prestressed stress is generated in the concrete before it is subjected to stress, thereby improving the bearing capacity and durability of the structure.

Deformed bar classification

Deformed steel bars can be divided into many types according to their shapes, sizes and uses. For example, hot-rolled ribbed steel bars HRB335 and HRB400 are common types of deformed steel bars, which have different yield strengths and tensile strengths and are suitable for different engineering needs.

For details, you can refer to this article – How Many Types Of Reinforcing Bars Are There?

What is the difference between prestressed steel bars and deformed bars?

Prestressing steel bars

1. Definition: Prestressed steel bars are steel bars that have been prestressed. During the production process, pre-tensioning or post-tensioning methods are used to apply prestress to the steel bars to generate a certain tensile stress inside them. This treatment method can significantly improve the tensile strength and fatigue resistance of steel bars.

2. Identification method: Prestressed steel bars are mainly used in concrete structures that need to withstand large tension and pressure. These structures often have high requirements on the strength and stability of the material. Its surface has many ring-shaped skeletons and raised fine particles, which are signs of prestressing. And there are usually blue colored lines and logos engraved with letters and numbers on the surface to distinguish its variety, strength, material, and other information.

3. Bending test: After bending the steel bar to a certain angle and releasing it, the prestressed steel bar will immediately stretch outward instead of rebounding to its original shape.

 

Deformed bars

1. Definition: The surface of the deformed steel bar has ribs, threads or other shapes of deformation. This deformation is formed during the steel bar production process through processes such as hot rolling or cold rolling. Deformed steel bars usually have identification information such as model and specification.

2. The main feature is that it has a strong bond with concrete and can be used as prestressed steel bars after cold drawing.

 

In summary, prestressed steel bars are commonly used in bridge construction and large-scale factory building construction. Deformed steel bars are commonly used in structures such as house structures, road and bridge steel mesh, and steel cages. Therefore, deformed steel bars are more common in various reinforced concrete structures, and prestressed steel bars are more common in large-span bridges.

Is a deformed bar the same as a rebar?

Rebars refer to reinforcing steel bars, deformed bars or debars, concrete reinforcement bars, or in the Filipino term kabilya, which are round steels bar with protrusions called deformations used as tension devices in reinforced concrete to strengthen and hold the concrete together. While the deformed  steel bars refer to steel bars with ribs and threads on the surface. They are containment relationships.

What are hot rolled steel bars and cold rolled steel bars?

The main difference between the two is the processing method. The following is a detailed explanation:

Hot rolled steel bars

1. Definition: Hot-rolled steel bars are finished steel bars that are hot-rolled and naturally cooled. They are made of low-carbon steel and ordinary alloy steel pressed at high temperatures. The production process includes heating, hot rolling, cooling, etc.

2. Features: Hot-rolled steel bars are soft steel, and necking occurs when they break, with a large elongation. The diameter range is wide, generally 6.540 mm in diameter, of which the 6.59 mm diameter steel bars are mostly rolled into wire rods.

 

Cold rolled steel bars

1. Definition: Cold-rolled steel bars are steel bars obtained by cold processing hot-rolled steel bars. Usually, the steel bars are cold-drawn, drawn, or cold-rolled at room temperature. The production process includes cold drawing, cold drawing, or cold rolling. The steel bars are plastically deformed by machinery. The cold rolling process can further increase the yield point and strength of the steel bars.

2. Features: The bonding strength with concrete is high. Due to the appearance of crescent-shaped cross ribs, it has better bonding performance and anti-slip performance.

Get deformed bar price from Wanzhi Steel

Wanzhi Steel is a high-quality supplier in China that has been established for 13 years. Our steel bars are exported to more than 200 countries including Spain, Georgia, Egypt, India, Algeria, Azerbaijan, Colombia, Saudi Arabia, UAE, Poland, Germany, Russia, Turkey, Bulgaria, Macedonia, Pakistan, Nigeria, Kyrgyzstan, etc. We have established a multilingual sales team, which is online 24 hours a day. We also provide straight bars and deformed bar in coil. In addition, we also have deformed rod, deformed round bar, high tensile deformed bar, hot rolled deformed steel bars, and  plain bars. Welcome to ask us for a quotation~

Furthermore:the  Steel Reinforcement Mesh, GI Concrete Mesh, Flat steel, galvanized coil/sheet/strip, Galvanized steel grille, and color coated coil/sheet/strip are also on sale~

 

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