• High quality hot rolled deformed bar 6mm-50mm System 1
  • High quality hot rolled deformed bar 6mm-50mm System 2
  • High quality hot rolled deformed bar 6mm-50mm System 3
High quality hot rolled deformed bar 6mm-50mm

High quality hot rolled deformed bar 6mm-50mm

Ref Price:
get latest price
Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
25 m.t.
Supply Capability:
20000000 m.t./month

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Product Description:

Product Description:

Specifications of HRB400 Deformed Steel Bar:

Standard

GB

HRB400


Diameter

6mm,8mm,10mm,12mm,14mm,16mm,18mm,20mm,

22mm,25mm,28mm,32mm,36mm,40mm,50mm



Length

6M, 9M,12M or as required


Place of origin

Hebei, China mainland


Advantages

exact size, regular package, chemical and   mechanical properties are stable.


Type

Hot rolled deformed steel bar


Brand name

DRAGON


Chemical Composition: (Please kindly find our chemistry of our material based on HRB500 as below for your information)

Grade

Technical data of the original chemical composition (%)

C

Mn

Si

S

P

V

HRB400

≤0.25

≤1.60

≤0.80

≤0.045

≤0.045

0.04-0.12

Physical capability

Yield Strength (N/cm²)

Tensile Strength (N/cm²)

Elongation (%)

≥400

≥570

≥14

Theoretical weight and section area of each diameter as below for your information:

Diameter(mm)

Section area (mm²)

Mass(kg/m)

Weight of 12m bar(kg)

6

28.27

0.222

2.664

8

50.27

0.395

4.74

10

78.54

0.617

7.404

12

113.1

0.888

10.656

14

153.9

1.21

14.52

16

201.1

1.58

18.96

18

254.5

2.00

24

20

314.2

2.47

29.64

22

380.1

2.98

35.76

25

490.9

3.85

46.2

28

615.8

4.83

57.96

32

804.2

6.31

75.72

36

1018

7.99

98.88

40

1257

9.87

118.44

50

1964

15.42

185.04

Usage and Applications of HRB400 Deformed Steel Bar:

Deformed bar is widely used in buildings, bridges, roads and other engineering construction. Big to highways, railways, bridges, culverts, tunnels, public facilities such as flood control, dam, small to housing construction, beam, column, wall and the foundation of the plate, deformed bar is an integral structure material. With the development of world economy  and the vigorous development of infrastructure construction, real estate, the demand for deformed bar will be larger and larger..

Packaging & Delivery of HRB400 Deformed Steel Bar:

Packaging Detail: products are packed in bundle and then shipped by container or bulk vessel, deformed bar is usually naked strapping delivery, when storing, please pay attention to moisture proof. The performance of rust will produce adverse effect.

Each bundle weight: 2-3MT, or as required

Payment term: TT or L/C

Delivery Detail: within 45 days after received advanced payment or LC.

Label: to be specified by customer, generally, each bundle has 1-2 labels

Trade terms: FOB, CFR, CIF


Q:What is the difference between hot-rolled and cold-worked steel rebars?
Hot-rolled steel rebars are made by heating the steel billets to high temperatures and then rolling them into the desired shape, resulting in a rougher surface texture. On the other hand, cold-worked steel rebars are produced at room temperature, undergoing processes like cold drawing or cold rolling, which improve the surface finish and dimensional accuracy. Cold-worked rebars are often used in applications where a smoother surface is required, such as in concrete reinforcement or in the manufacturing of precision components.
Q:What are the guidelines for the proper lap splicing of steel rebars?
Here are different grammar and expressions for the given guidelines: 1. Lap Length: To achieve the proper overlapping of rebars, a minimum distance, known as the lap length, must be maintained. This distance is determined based on factors such as bar diameter, strength, and the type of structure. Engineering codes and standards generally specify the required lap lengths. 2. Cleanliness: Before commencing lap splicing, it is crucial to ensure that the rebars are free from any dirt, rust, oil, or other contaminants. The presence of foreign materials on the rebar surface can impede the bond between the overlapping bars. 3. Alignment: The rebars intended for splicing must be accurately aligned and parallel to each other. Any misalignment can result in a weak splice, compromising the structural integrity of the construction. 4. Overlapping: The length of overlap between the rebars should be sufficient to transfer loads effectively and maintain reinforcement continuity. It is imperative to adhere to the specified lap length to achieve the required strength and performance of the reinforced concrete structure. 5. Splice Configuration: The choice of lap splice configuration depends on the structural requirements and the specific design of the project. Commonly used configurations include end-to-end splicing, staggered splicing, and mechanical splices. The selection of the appropriate configuration should comply with relevant codes and standards. 6. Splice Preparation: Thorough cleaning and preparation of the rebars at the lap splice area are necessary. This involves removing any loose rust or scale from the bar surface and ensuring adequate bond length between the bars. 7. Lap Splice Placement: The lap splice should be positioned at the designated location within the concrete member. It is crucial to avoid placing the splice too close to the edge of the concrete element, as this may reduce the cover depth and impact the structure's durability. 8. Splice Length Variations: In situations where achieving the required lap length is not feasible due to space limitations or other restrictions, alternative methods such as mechanical splices or welded splices can be considered. However, it is essential to consult the project engineer or designer to ensure compliance with the appropriate guidelines. 9. Quality Control: The lap splicing process should be subject to proper quality control measures. This includes monitoring the lap splice length, ensuring accurate alignment, and conducting periodic inspections to identify any defects or deficiencies. It is important to note that the above guidelines serve as general recommendations, and the specific requirements for lap splicing may vary depending on the design specifications, construction codes, and local regulations. Therefore, it is always advisable to consult the project engineer or designer for precise guidelines applicable to a particular project.
Q:What is the cost of steel rebars?
The cost of steel rebars can vary depending on factors such as the size, grade, quantity, and location of purchase. It is recommended to contact suppliers or check with local construction material stores for accurate and up-to-date pricing information.
Q:Are steel rebars suitable for use in structures with high wind loads?
Yes, steel rebars are suitable for use in structures with high wind loads. Steel rebars, also known as reinforcing bars, are commonly used in construction to provide strength and stability to reinforced concrete structures. They are designed to withstand high tensile forces and are an essential component in ensuring the structural integrity of buildings, especially in areas prone to high wind loads. Steel rebars offer several advantages that make them suitable for use in structures with high wind loads. Firstly, steel has high tensile strength, allowing it to resist the forces generated by wind loads. Unlike other materials like timber or concrete, steel rebars have excellent ductility, making them capable of absorbing and redistributing the energy caused by wind-induced vibrations. Secondly, steel rebars are highly durable and resistant to corrosion, which is essential for structures exposed to harsh weather conditions, including high winds. The use of steel rebars prevents the risk of deterioration or weakening of the structure over time due to wind-induced stresses. Thirdly, steel rebars can be easily molded and shaped to fit the specific design requirements of the structure. This flexibility allows engineers to design and construct buildings that can withstand the varying wind loads experienced in different regions. Overall, steel rebars are a suitable choice for structures with high wind loads due to their high tensile strength, durability, and resistance to corrosion. They provide the necessary reinforcement needed to ensure the longevity and safety of the structure in challenging wind conditions.
Q:What is the difference between deformed and plain steel rebars?
Deformed steel rebars have ridges, ribs, or indentations on their surface, which provides better bonding with concrete and enhances the overall strength and stability of reinforced concrete structures. Plain steel rebars, on the other hand, have a smooth surface without any deformations. The presence of deformations in deformed rebars increases their resistance to slippage, making them more suitable for applications where preventing concrete from cracking or slipping is crucial, such as in high-rise buildings, bridges, and heavy-duty construction projects.
Q:How do steel rebars affect the overall crack width of concrete structures?
Steel rebars affect the overall crack width of concrete structures in several ways. Firstly, rebars provide reinforcement to the concrete, making it stronger and more resistant to cracking. The presence of rebars helps distribute the tensile forces within the concrete, preventing cracks from spreading and widening. This is because when the concrete is subjected to tensile stress, the rebars take on a significant portion of the load, reducing the stress on the concrete itself and minimizing crack formation. Moreover, the use of rebars also influences the spacing and size of cracks in concrete structures. By adding rebars at specific intervals and in appropriate sizes, engineers can control the crack width of the concrete. The rebars act as barriers that limit the width of cracks by providing resistance to the tensile forces acting on the concrete. This is particularly important in structures that are exposed to heavy loads or external forces, as it helps maintain the structural integrity and durability of the concrete. Additionally, steel rebars can also affect the propagation of cracks in concrete structures. When cracks do occur, the presence of rebars can help prevent the cracks from extending further. The rebars act as anchors, holding the cracked sections of the concrete together and preventing the cracks from spreading. This is crucial in ensuring the overall stability of the structure and minimizing the risk of structural failure. In summary, steel rebars play a vital role in influencing the overall crack width of concrete structures. They enhance the strength of the concrete, distribute tensile forces, control crack spacing and size, and prevent crack propagation. By incorporating rebars into concrete structures, engineers can effectively manage and reduce the formation and severity of cracks, ensuring the longevity and safety of the structures.
Q:What are the different types of steel rebars used in industrial constructions?
The different types of steel rebars commonly used in industrial constructions include mild steel rebar, high-strength deformed steel rebar, epoxy-coated steel rebar, stainless steel rebar, and galvanized steel rebar.
Q:How do steel rebars affect the overall seismic performance of buildings?
Steel rebars play a crucial role in enhancing the overall seismic performance of buildings. These reinforced bars, when properly integrated into the structural system, provide significant strength and ductility to the building, allowing it to withstand seismic forces more effectively. One of the key benefits of steel rebars is their ability to increase the tensile strength of concrete structures. Concrete is strong in compression but weak in tension. By placing steel rebars within the concrete, the tensile strength is greatly improved, preventing the concrete from cracking or failing under the stress of seismic forces. In the event of an earthquake, steel rebars help distribute the seismic forces throughout the structure, minimizing localized damage and ensuring a more uniform response. The rebars act as a network of interconnected elements, transferring the energy created by the earthquake to the surrounding areas, thereby reducing the vulnerability to localized failures. Moreover, steel rebars enhance the ductility of the building, which is the ability to deform without losing structural integrity. During an earthquake, buildings experience significant lateral forces, and the ductility provided by the rebars allows the structure to absorb and dissipate these forces through controlled deformation. This prevents sudden and catastrophic failure, giving occupants more time to evacuate safely. Additionally, steel rebars can be strategically placed in critical areas of the building, such as at beam-column connections, where the highest stresses occur during an earthquake. By reinforcing these vulnerable points, the rebars ensure that the building maintains its structural integrity and remains resistant to collapse. In summary, steel rebars significantly improve the overall seismic performance of buildings by increasing tensile strength, distributing seismic forces, enhancing ductility, and reinforcing critical areas. Their integration into the structural system helps mitigate the potential for damage and ensures the safety of occupants during seismic events.
Q:Can steel rebars be used in structures with limited construction expertise?
No, steel rebars should not be used in structures with limited construction expertise. The correct installation and placement of rebars require specialized knowledge and skills to ensure the structural integrity and safety of the building. Using rebars incorrectly could result in a compromised structure and potential hazards. It is essential to consult professionals with expertise in construction to handle the installation of rebars properly.
Q:Can steel rebars be used in historical building restoration?
Yes, steel rebars can be used in historical building restoration. Rebars are commonly used in construction to reinforce concrete structures and provide additional strength and durability. When it comes to historical building restoration, the goal is to preserve the original character and aesthetics of the structure while ensuring its structural integrity. Steel rebars can be carefully integrated into the restoration process to strengthen weak areas or replace deteriorated or damaged sections. The use of rebars allows for a more stable and long-lasting structure, ensuring the building's longevity for future generations. However, it is important to ensure that the use of steel rebars in historical building restoration is done in a way that respects the historical significance of the structure. The integration of rebars should be done discreetly, ensuring they do not compromise the building's original appearance or architectural features. Additionally, any restoration work on historical buildings should adhere to strict preservation guidelines and be carried out by skilled professionals with expertise in historical preservation. This ensures that the restoration process maintains the historical integrity of the building while incorporating necessary structural reinforcements, such as steel rebars.

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