• High Quality ASTM Standard Deformed Steel Rebar System 1
  • High Quality ASTM Standard Deformed Steel Rebar System 2
  • High Quality ASTM Standard Deformed Steel Rebar System 3
High Quality ASTM Standard Deformed Steel Rebar

High Quality ASTM Standard Deformed Steel Rebar

Ref Price:
get latest price
Loading Port:
China main port
Payment Terms:
TT or LC
Min Order Qty:
50 m.t.
Supply Capability:
200000 m.t./month

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Product Description:

Specifications of High Quality ASTM Standard Deformed Steel Rebar

 

Standard

GB

HRB335, HRB400, HRB500


UK

G460B, B500A, B500B,B500C


USA

GR40, GR60


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


Application

building,construction,road,bridge etc


Brand name

DRAGON


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

Diameter(mm)

Section area (mm²)

Mass(kg/m)

6

28.27

0.222

8

50.27

0.395

10

78.54

0.617

12

113.1

0.888

14

153.9

1.21

16

201.1

1.58

18

254.5

2.00

20

314.2

2.47

22

380.1

2.98

25

490.9

3.85

28

615.8

4.83

32

804.2

6.31

36

1018

7.99

40

1257

9.87

50

1964

15.42

Usage and Applications of High Quality ASTM Standard Deformed Steel Rebar

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 High Quality ASTM Standard Deformed Steel Rebar

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

Deformed Steel Bar in Coil

Produce Line of High Quality ASTM Standard Deformed Steel Rebar

Note:

1. Our products are produced according to national standard (GB), if not, supply according to national standards (GB) or agreement as customer required.

2. Other Grade and Standard Deformed Steel Bar we can supply:

 Grade: GR40/GR60, G460B/B500A/B500B/B500C,BST500S

 Standard: ASTM, BS, DIN

 The Minimum Order Quantity of these products is high, and need to be confirmed.

3. We can not only supply Deformed Steel Bar; if you need anything about building materials, please contact us for further information.

4. Please send us your detail specifications when inquire. We will reply to you as soon as possible. We sincerely hope we can establish a long stable business relationship

 

 

Pictures of High Quality ASTM Standard Deformed Steel Rebar

 

Deformed Steel Bar in stock

 

High Quality ASTM Standard Deformed Steel Rebar

 

 

Deformed Steel Bar in testing

Deformed Steel Bar in testing


Q:What is the role of steel rebars in minimizing the risk of progressive collapse?
Steel rebars play a critical role in minimizing the risk of progressive collapse by providing structural reinforcement and enhancing the load-bearing capacity of a building or structure. They are embedded within concrete elements such as beams, columns, and slabs, creating a composite structure that can resist higher loads and distribute them evenly. In the event of a localized failure or an unexpected load, rebars help prevent the collapse from propagating further by transferring the load to other intact elements, thereby preventing a catastrophic failure. Overall, steel rebars contribute to the structural integrity and resilience of a building, reducing the risk of progressive collapse.
Q:What are the guidelines for preventing steel rebars from rusting during construction?
There are several guidelines that can be followed to prevent steel rebars from rusting during construction. These guidelines include: 1. Proper storage: Steel rebars should be stored in a dry and covered area in order to protect them from moisture. It is important to keep them off the ground and away from any sources of water, such as puddles or wet concrete. 2. Surface preparation: Before installing the rebars, it is necessary to inspect them for any signs of rust or corrosion. If any are found, they should be cleaned using a wire brush or sandblasting to remove the rust and create a clean surface for proper adhesion. 3. Coating: Applying a protective coating to the rebars can help prevent rusting. This can be done using epoxy, zinc, or other anti-corrosion coatings. It is important to apply the coating evenly and according to the manufacturer's instructions. 4. Proper spacing: When placing rebars in concrete, it is crucial to ensure that they are spaced adequately to allow for proper ventilation and to prevent moisture from being trapped between them. The spacing should be in accordance with the design specifications or as recommended by structural engineers. 5. Adequate concrete cover: The rebars should have a sufficient concrete cover to protect them from moisture and corrosion. The thickness of this cover should meet the design requirements and should be maintained throughout the construction process. 6. Proper curing: After the rebars are installed, it is important to properly cure the concrete to ensure it reaches its maximum strength and durability. Proper curing methods, such as using curing compounds or covering the concrete with plastic sheeting, can help prevent moisture penetration and rusting of the rebars. 7. Regular inspections: Regular inspections of the rebars should be conducted during construction to identify any signs of rust or corrosion. If any are found, appropriate measures should be taken to address the issue promptly and prevent further damage. By following these guidelines, construction professionals can minimize the risk of steel rebars rusting during construction, thus ensuring the structural integrity and longevity of the project.
Q:How to judge the quality of thread steel?
Appearance check the necking fracture, peeling, oil pollution, damage, deformation, diameter error, third is the best for the test, according to the provisions of the current "reinforced concrete hot-rolled ribbed bar" GB1499 current national sample sent to the laboratory test, the sample collected for tests of mechanical properties, such as more than three are qualified, steel is good the!
Q:Can steel rebars be used in structures with limited construction regulations?
Structures with limited construction regulations may incorporate steel rebars, but it is crucial to acknowledge that the building's safety and structural integrity may be compromised in the absence of suitable regulations. Reinforcing concrete structures with steel rebars is a common practice to provide strength and stability. Nevertheless, relying solely on rebars does not guarantee the structure's safety. Construction regulations are in place to ensure that buildings are designed and constructed to withstand diverse forces and loads, such as wind, earthquakes, and live loads. These regulations encompass fire safety, electrical systems, and accessibility as well. Without adhering to these regulations, there is an elevated risk of structural failure or other safety concerns. Incorporating steel rebars into structures without appropriate construction regulations may result in inadequately designed or constructed buildings that cannot withstand these forces and loads. This can lead to structural failure, collapse, or other hazards. Therefore, it is advisable to comply with local construction codes and regulations to ensure the safety and longevity of any structure.
Q:How long do steel rebars typically last?
Steel rebars typically have a long lifespan and can last for several decades. The exact duration of their lifespan depends on various factors, such as the quality of the rebar, the environmental conditions it is exposed to, and the maintenance practices implemented. Generally, steel rebars are designed to be resistant to corrosion, which is one of the main factors that can affect their longevity. However, over time, rebars may experience some corrosion due to exposure to moisture, chemicals, or other corrosive agents. This can potentially reduce their lifespan. Regular inspections, maintenance, and the application of protective coatings can help extend the lifespan of steel rebars. With proper care, steel rebars can typically last 30 to 50 years or even longer.
Q:What are the guidelines for proper storage and transportation of steel rebars?
The guidelines for proper storage and transportation of steel rebars are essential to ensure their integrity and quality. Here are some important guidelines to follow: 1. Storage: Steel rebars should be stored in a clean, dry, and well-ventilated area to prevent corrosion. They should be placed on a flat surface to avoid distortion or bending. Stacking should be limited to prevent excessive weight on the lower rebars, which can lead to deformation. 2. Protection: Steel rebars should be protected from exposure to moisture, rain, and direct sunlight. They should be covered with a waterproof tarp or plastic sheeting to prevent rusting. Rust can weaken the rebars and compromise their structural integrity. 3. Separation: Different sizes and grades of rebars should be stored separately to avoid confusion and ensure easy access. Additionally, rebars should be kept away from other materials that can cause damage or contamination. 4. Handling: When handling steel rebars, proper lifting techniques should be employed. Forklifts or cranes with appropriate lifting equipment should be used to prevent damage or injuries. The rebars should not be dragged or dropped, as this can cause deformation or cracking. 5. Transportation: During transportation, steel rebars should be secured properly to prevent shifting or movement that can lead to damage. Adequate cushioning materials, such as wooden blocks or rubber pads, should be used to minimize vibration and impact. Additionally, rebars should be covered to protect them from road debris and adverse weather conditions. 6. Documentation: Proper documentation is necessary for tracking the origin, size, and grade of the rebars. This information helps in ensuring compliance with industry standards and quality control measures. By adhering to these guidelines, the risk of damage, deformation, and corrosion to steel rebars during storage and transportation can be significantly reduced. This ensures that the rebars maintain their structural integrity and are fit for use in construction projects.
Q:How do steel rebars prevent cracking in concrete?
Steel rebars prevent cracking in concrete by providing reinforcement and increasing the overall strength and durability of the structure. When concrete is subject to tensile forces, such as bending or stretching, it tends to crack. However, steel rebars are added to concrete construction to counteract these tensile forces. The rebars, which are made of high-strength steel, are strategically placed within the concrete to create a reinforcing mesh or framework. This mesh acts as a skeleton that absorbs and distributes the tensile forces throughout the concrete structure, preventing the formation of cracks. When external loads, such as heavy weights or seismic forces, are applied to the concrete, the rebars bear the tensile stress instead of the concrete. The steel rebars have a significantly higher tensile strength compared to concrete, allowing them to resist the forces that would normally cause cracking. By distributing the stress more evenly, the rebars minimize the formation of cracks and help maintain the structural integrity of the concrete. Furthermore, steel rebars also prevent cracks by improving the bond between the concrete and the reinforcement. Concrete has excellent compressive strength, but its tensile strength is relatively low. The presence of rebars increases the overall tensile strength of the concrete, making it less likely to crack under tension. The rebars create a bond with the concrete, forming a composite material that can withstand both compressive and tensile forces more effectively. In summary, steel rebars prevent cracking in concrete by providing reinforcement, absorbing tensile forces, and improving the overall strength and durability of the structure. They act as a skeleton within the concrete, distributing stress and preventing the formation of cracks, thereby ensuring the longevity and stability of the concrete construction.
Q:How are steel rebars bent or shaped to fit specific construction requirements?
Steel rebars are commonly bent or shaped to fit specific construction requirements through a process known as rebar bending. This process involves the use of specialized machines that apply force to the rebar, causing it to bend or shape according to the desired specifications. There are different methods used to bend steel rebars, depending on the complexity of the required shape. For simpler bends, such as 90-degree angles, manual bending tools like hammers or manual rebar benders can be used. These tools allow construction workers to manually apply force and shape the rebar by hand. However, for more complex shapes or larger quantities of rebars, mechanical rebar benders are often employed. These machines are equipped with bending dies and rollers that can bend the steel rebar with greater precision and efficiency. They can be manually operated or powered by hydraulics or electricity, depending on the size and requirement of the construction project. Computer Numerical Control (CNC) machines are also utilized in some cases, especially for projects with intricate or customized rebar shapes. These machines are programmed to automatically bend the rebars to the desired angles and shapes, ensuring high precision and accuracy in the construction process. It is worth noting that rebar bending is not limited to simple bends or shapes. In some cases, rebars need to be curved or spiraled to fit specific architectural or structural requirements. This process involves the use of specialized bending machines that can apply gradual and controlled force to the rebar, resulting in smooth curves or spirals. Overall, the process of bending or shaping steel rebars to fit specific construction requirements involves the use of manual tools, mechanical benders, or CNC machines. These methods ensure that the rebars are precisely bent or shaped according to the design specifications, allowing for the efficient and accurate construction of reinforced concrete structures.
Q:What are the factors that determine the strength of steel rebars?
The factors that determine the strength of steel rebars include the chemical composition of the steel, the process of manufacturing and heat treatment, and the diameter and shape of the rebar. Additionally, factors such as the presence of impurities, the level of carbon content, and the microstructure of the steel also play a role in determining its strength.
Q:How do steel rebars affect the overall cost-effectiveness of a structure?
Steel rebars can greatly enhance the cost-effectiveness of a structure by providing added strength and durability. Their use reduces the need for excessive concrete, leading to cost savings in material and construction time. Additionally, the longevity and resistance to corrosion offered by steel rebars can result in reduced maintenance and repair expenses over the lifespan of the structure.

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