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Types of rebar and its application in the construction industry with iron 123

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The importance of building resistant structures does not only mean increasing the physical resistance of the structure; But this issue also has a human aspect and helps to protect human lives. Concrete is one of the most widely used materials in construction; But concrete alone cannot provide the strength of the building and needs rebar. The rebar is a steel piece that provides the building’s tensile strength, and for this reason, its use is particularly important. By using the right rebar next to the concrete, you can build a safe structure so that it will not be damaged in the long run, and it will protect human lives.

Knowledge of rebar and its use

Rebar is one of the steel materials that is produced in the form of solid pipes. Concrete has a very high resistance and therefore can bear the weight of the structure. The weakness of concrete is low tensile strength, and this weakness is compensated by the presence of rebar. The rebar is divided into different categories based on the manufacturing standard, size and diameter, appearance, weight, material, etc.

Types of rebar based on manufacturing standards

All countries produce their steel materials based on specific standards. Some standards are international and others are only used domestically. The rebar production standard in Iran has an internal aspect, based on which rebars are divided into four general categories: A1, A2, A3, and A4. This standard is known as INSO3132 standard. Isfahan Iron Smelting Factory is one of the first factories that produced rebar with INSO3132 standard.

1. Rebar A1: A1 rebar is the same simple rebar that uses a small percentage of carbon in its construction. This rebar has no tread on its surface and is completely smooth and uniform. This type of rebar is also called soft rebar. This steel piece has relatively good resistance; But it cannot be used to build heavy structures like bridges. The main use of simple rebar is in construction, quenching and welding.

2. Rebar A2: Another common type of rebar in the market is A2 rebar, which is in the semi-hard category in terms of hardness. In the construction of this rebar, a higher percentage of carbon has been used than the simple rebar, for this reason it is more brittle and less flexible than the previous example. This rebar has uniform treads on its surface that are stretched from top to bottom. A2 ribbed rebar is also known as spiral ribbed rebar.

3. Rebar A3: This rebar has a higher degree of hardness than the previous two examples and the carbon inside is more. Due to the high resistance of this rebar, it is also used in the construction of industrial structures. A3 ribbed rebar, or twilled ribbed rebar, has deep grooves on its surface, which helps better adhesion of concrete and rebar.

4. A4 rebar: In terms of degree of hardness, this rebar is placed in the hard grade and is less flexible than the previous three examples. The strength of A4 ribbed rebar is very high and it greatly increases the tensile strength of the structure. This rebar is produced in the form of compound ribs. A4 rebar is also used in construction projects.

Types of rebar based on gender

Another common classification to recognize rebar is to pay attention to its type. According to the raw materials used in rebar, some common categories can be suggested as follows:

5. European rebar: Manganese is used to make European rebar, and for this reason, this rebar is easily bent and has high flexibility. Although this rebar is widely used, it should not be forgotten that it cannot be used in special weather conditions, earthquake-prone areas and structures that require an integrated structure.

6. Carbon steel rebar: Carbon rebar is also called “black rebar”. This rebar is the most common type of rebar in construction and is used in different forms. One of the major weaknesses of this steel piece is its low resistance to rust; For this reason, it is better not to use it in places with high humidity. Otherwise, black rebar has good tensile strength and is suitable for construction.

7. Rebar with epoxy coating: Another one of the most common types of rebar in building construction is rebar with epoxy coating, which wears out later than black rebar. This rebar is actually the same black rebar that has a thin layer of epoxy coating on it, and this coating has reduced its rust rate.

8. Galvanized rebar: The galvanized rebar has a coating of zinc and for this reason, it has more resistance than the previous examples. Galvanized rebar is more resistant to corrosion, wears out later and also provides high strength to the structure.

Types of rebar based on the manufacturer

Another indicator for measuring the quality of rebar, as well as one of the important features that buyers pay attention to when buying rebar, is the manufacturing plant. Various factories throughout Iran produce rebar with different characteristics. Among the best steel factories in Iran, the following can be mentioned:

9. Hashtroud factory: Hashtroud Steel Factory is one of the famous factories in the field of rebar production, which was established in Tabriz in 2005. This factory produces all kinds of ribbed, twilled and composite rebars in different sizes. The price of rebar in Hashtroud You can see it instantly and make a purchase at the best time.

10. Isfahan iron smelting factory: This factory was established in 1349 and today it is known as one of the most prominent factories producing rebar and hardware. Isfahan Iron Smelting Factory produces various types of rebar, such as A3 10-ribbed rebar, A3 14-ribbed rebar, A3 22-ribbed rebar, etc.

11. Abhar factory: Kian Folad Abhar Company was established in Zanjan and is one of the best rebar manufacturers in Iran. This factory produces all types of simple, ribbed, twilled and composite rebars in different sizes.

12. Middle factory: Middle Azarbaijan Steel produces rebars with different characteristics in step with the best Iranian steel factories. This factory produces all kinds of ribbed rebar in different sizes.

13. Iranian Alborz Steel Factory: This factory, known by the abbreviation “FAICO”, is one of the largest steel complexes producing rebar. This factory was established in 1393 in Mazandaran. The rebar of Faiko factory is produced in thicknesses of 8 to 32 mm.

Other factories are also active in the field of rebar production, including Zafar Benab factory, Saba steel factory in Zagros, Kerman factory, Arg Tabriz factory and Arian steel factory.

The daily price of rebar

The price of rebar varies based on different features and it is not possible to provide a specific price for this product. Determining the price of rebar depends on various factors such as type and size, diameter, ribbing or not, and other factors such as supply and demand, as well as currency prices. The daily price of iron And you can monitor the daily price of rebar on various websites and make a purchase at the right time.

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