Steel Rebar,Reinforcement Steel Bar,Structural Steel bar
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT or LC
- Min Order Qty:
- 100 m.t.
- Supply Capability:
- 100000 m.t./month
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Quality Product, Order Online Tracking, Timely Delivery
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Product Description:
OKorder is offering Steel Rebar,Reinforcement Steel Bar,Structural Steel bar at great prices with worldwide shipping. Our supplier is a world-class manufacturer of steel, with our products utilized the world over. OKorder annually supplies products to African, South American and Asian markets. We provide quotations within 24 hours of receiving an inquiry and guarantee competitive prices.
Product Applications:
Steel Rebar,Reinforcement Steel Bar,Structural Steel bar are ideal for structural applications and are widely used in the construction of buildings and bridges, and the manufacturing, petrochemical, and transportation industries.
Product Advantages:
OKorder's Steel Rebar,Reinforcement Steel Bar,Structural Steel bar are durable, strong, and wide variety of sizes.
Main Product Features:
· Premium quality
· Prompt delivery & seaworthy packing (30 days after receiving deposit)
· Can be recycled and reused
· Mill test certification
· Professional Service
· Competitive pricing
Product Specifications:
Manufacture: Hot rolled
Grade: HRB335,HRB400,HRB500
Certificates: ISO, SGS, BV, CIQ
Length: 6m – 12m, as per customer request
Packaging: Export packing, nude packing, bundled
Deformed Steel Bar | ||
Diameter (MM) | Cross Sectional Area (MM2) | Theorectical Weight (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 |
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 |
FAQ:
Q1: How many tons of steel products could be loaded in containers?
A1: Usually the steel products are delivered by bulk vessel because of the large quantity and the freight. However, there are no bulk vessel enter some seaports so that we have to deliver the cargo by containers. The 6m steel product can be loaded in 20FT container, but the quantity is changed according to the size, usually from 18tons to 25tons.
Q2: How do we guarantee the quality of our products?
A2: We have established an advanced quality management system which conducts strict quality tests at every step, from raw materials to the final product. At the same time, we provide extensive follow-up service assurances as required.
Q3: How soon can we receive the product after purchase?
A3: Within three days of placing an order, we will arrange production. The normal sizes with the normal grade can be produced within one month. The specific shipping date is dependent upon international and government factors, the delivery to international main port about 45-60days.
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- Q:Are steel rebars resistant to chemicals?
- Yes, steel rebars are generally resistant to chemicals. The corrosion resistance properties of steel rebars make them suitable for use in various chemical environments. However, exposure to certain aggressive chemicals or environments may lead to corrosion over time, so it is essential to consider the specific conditions and choose the appropriate type of steel or protective coatings accordingly.
- Q:What are the common defects found in steel rebars?
- Steel rebars can exhibit several common defects. One such defect is surface cracks, which may arise from either the manufacturing process or mishandling and inadequate storage. These cracks have the potential to compromise the rebars' strength and integrity, thereby increasing the risk of failure under load. Another frequently encountered defect is corrosion, which occurs when rebars are exposed to moisture or chemicals. This corrosion weakens the rebars and diminishes their load-bearing capacity, rendering them more susceptible to failure. Bending and straightening defects are also commonly observed in steel rebars. Improper bending or straightening techniques can result in cracks, buckling, or uneven distribution of stress, thereby compromising the performance of the rebars. Inadequate welding or improper lapping of rebars can lead to subpar connections and reduced structural integrity. Welding defects, such as lack of fusion, incomplete penetration, or excessive porosity, weaken the rebars and heighten the risk of failure. Dimensional defects, encompassing variations in diameter, length, or straightness, can impact the fit and compatibility of rebars with other structural components. When rebars are not correctly aligned or fail to meet the required dimensions, it can lead to diminished structural strength and compromised performance. Lastly, improper heat treatment during the manufacturing process can result in internal defects like segregation, inclusions, or improper grain structure. These defects undermine the rebars' strength and render them more susceptible to fracture or failure under load. In summary, it is crucial to thoroughly inspect steel rebars for these common defects to ensure the structural integrity and safety of the construction projects in which they are employed.
- Q:How do steel rebars resist buckling in concrete structures?
- Steel rebars resist buckling in concrete structures due to their high strength and stiffness. When concrete is subjected to compressive forces, it tends to expand laterally, leading to the development of cracks. These cracks weaken the concrete and reduce its ability to bear loads. However, by introducing steel rebars into the concrete, the tensile strength of the structure is greatly enhanced. Steel rebars, which are made of high-strength steel alloys, have exceptional tensile strength. When concrete is subjected to compressive forces, the rebars bear the tensile stresses that occur within the structure. The rebars act as reinforcement, preventing the concrete from cracking and providing additional support to the structure. Moreover, the presence of rebars helps to distribute the compressive forces more evenly throughout the concrete. This ensures that the load is spread over a larger area, reducing the likelihood of localized buckling. The rebars effectively increase the overall stiffness of the structure, making it more resistant to buckling and deformation. Additionally, the bond between the steel rebars and the surrounding concrete plays a crucial role in resisting buckling. The rough surface of the rebars allows for enhanced adhesion with the concrete, creating a strong bond. This bond transfers the applied load from the concrete to the rebars, preventing the concrete from buckling and maintaining the structural integrity of the system. Overall, the combination of high tensile strength, improved load distribution, and strong bond with the concrete enables steel rebars to resist buckling in concrete structures. The presence of rebars significantly enhances the structural performance, ensuring the safety and durability of the concrete structure.
- Q:What are the guidelines for proper bending of steel rebars on construction sites?
- The guidelines for proper bending of steel rebars on construction sites are essential to ensure structural integrity and safety of the building. Here are some key guidelines to follow: 1. Use the right tools: Utilize a proper rebar bending machine or manual rebar bender specifically designed for steel rebars. These tools ensure precise bending without causing damage or weak spots on the rebar. 2. Determine the required bend angle: Measure and mark the required bend angle on the rebar accurately before bending. Use a protractor or a bending template to achieve the desired angle. 3. Follow the bending radius: The bending radius refers to the minimum radius that the rebar can be bent without causing any damage. Always adhere to the recommended bending radius provided by the manufacturer or structural engineer to avoid fractures or deformations. 4. Secure the rebar firmly: Prior to bending, securely fasten the rebar in the bender to prevent slipping or movement during the bending process. This ensures precise bending and reduces the risk of accidents. 5. Gradual bending process: When bending the rebar, apply gradual pressure and avoid sudden or excessive force. Gradual bending minimizes the risk of cracks or fractures and maintains the rebar's structural integrity. 6. Inspect the bend: After bending, carefully inspect the rebar to ensure it matches the desired angle and there are no visible defects or stress marks. Any faulty bends should be rectified immediately. 7. Proper storage: Store the bent rebar in a designated area, preferably on a flat surface, to prevent distortion or damage. Avoid placing heavy objects on top of the bent rebar to maintain its shape and strength. 8. Follow safety precautions: Always wear appropriate personal protective equipment (PPE), such as gloves and safety glasses, during bending operations. Ensure the work area is clear of obstacles and other workers to avoid accidents. 9. Maintain documentation: Document the bending process, including the angle, radius, and any deviations or issues encountered. This information can be useful for quality control purposes and future reference. 10. Compliance with building codes: Ensure that the bending process complies with local building codes and regulations. Seek guidance from a structural engineer or relevant authorities if necessary. By following these guidelines, construction professionals can ensure the proper bending of steel rebars, resulting in a structurally sound and safe building.
- Q:What is the specific concept of thread steel through water and what is the difference?
- Most of the thread steel is subjected to self - tempering after water cooling, and the tempered bainite is obtained. The advantage is that the strength will be better; the disadvantage is that after rolling through water, the surface oxide film of steel is destroyed, rust is sure
- Q:What are the guidelines for the proper spacing of steel rebars in beams?
- The guidelines for the proper spacing of steel rebars in beams are determined by engineering standards and codes. These guidelines ensure the structural integrity and strength of the beam. Here are some general guidelines to consider: 1. Rebar spacing: The spacing between rebars should be such that it allows for proper concrete placement and consolidation. Typically, the spacing is measured in terms of rebar diameter or as a percentage of the beam depth. The specific spacing requirements may vary based on factors such as the beam size, load requirements, and design specifications. 2. Minimum and maximum spacing: There are usually minimum and maximum spacing requirements for rebars in beams. The minimum spacing ensures proper concrete cover around the rebar to protect it from corrosion and provide fire resistance. The maximum spacing helps in distributing the loads evenly and prevents excessive cracking of the concrete. 3. Concrete cover: The rebars should be adequately covered by concrete to provide protection against corrosion and provide fire resistance. The concrete cover is the distance between the outer surface of the rebar and the edge of the beam. The required concrete cover is specified in engineering codes and is based on factors such as exposure conditions, durability requirements, and fire ratings. 4. Spacing around supports and openings: Special attention should be given to the spacing of rebars around supports such as columns and walls, as well as around openings like doorways or windows. These areas may experience higher stresses and require additional reinforcement. Engineering codes provide specific requirements for these situations, taking into account the size and shape of the supports or openings. 5. Lateral and longitudinal reinforcement: In addition to the spacing of rebars along the length of the beam (longitudinal reinforcement), beams may require additional reinforcement in the form of stirrups or ties (lateral reinforcement). These elements provide resistance against shear forces and help in preventing diagonal cracking. The spacing and size of these additional reinforcement elements are determined based on the design requirements and load conditions. It is important to note that the specific guidelines for spacing of steel rebars in beams may vary depending on regional building codes, project specifications, and engineering standards. Therefore, it is crucial to consult with a qualified structural engineer or refer to the applicable building codes and design documents for accurate and up-to-date guidelines.
- Q:How do steel rebars affect the overall stability of a structure?
- The overall stability of a structure is greatly impacted by steel rebars, also known as reinforcing bars. These rebars play a crucial role in enhancing the stability and durability of a structure, especially concrete structures. One way in which steel rebars affect the stability of a structure is by strengthening the concrete against tensile forces. While concrete is strong when it comes to compressive forces, it is relatively weak in resisting tension. Steel rebars, with their high tensile strength, help to counteract this weakness by absorbing and distributing tensile forces throughout the structure. This prevents the concrete from cracking or collapsing under excessive tensile loads, resulting in enhanced stability. Furthermore, steel rebars also contribute to the structural stability by improving the flexural strength of a structure. Flexural strength refers to a structure's ability to withstand bending or flexing without deforming or failing. By incorporating steel rebars into reinforced concrete beams, columns, or slabs, the overall flexural strength of the structure increases significantly. This prevents excessive deflection and ensures the structure can bear the various loads it faces, such as the weight of the building, live loads, or external forces. In addition, steel rebars play a vital role in resisting shear forces, which occur when different parts of a structure slide or move in opposite directions. These shear forces can lead to structural failure if not properly addressed. Steel rebars, when correctly positioned and secured, restrain the concrete from shearing, thus preventing potential collapse or instability. Moreover, steel rebars also enhance the stability of a structure by improving its resistance to seismic forces. In areas prone to earthquakes, the inclusion of steel rebars provides the necessary ductility and energy dissipation capacity to withstand seismic activity. Acting as a network of interconnected elements, the rebars distribute the seismic forces and ensure the structure remains stable during an earthquake. In conclusion, steel rebars have a significant impact on the overall stability of a structure. Their inclusion reinforces concrete against tensile forces, enhances flexural strength, resists shear forces, and improves resistance to seismic activity. By increasing the strength, durability, and integrity of a construction, steel rebars ensure that a structure can withstand various loads, forces, and potential hazards, ultimately enhancing its overall stability.
- Q:Can steel rebars be used in renovation or retrofitting projects?
- Absolutely, renovation or retrofitting projects can indeed make use of steel rebars. In construction, steel rebars are frequently employed to fortify concrete structures and they can also be utilized in renovation endeavors to bolster pre-existing structures. When refurbishing or retrofitting a building, it often becomes imperative to reinforce the current structure in order to comply with modern building codes or support additional burdens. Strengthening walls, columns, beams, or slabs can be achieved by incorporating supplementary reinforcement into the concrete, thanks to the utilization of steel rebars. By integrating steel rebars into a renovation project, the building's structural soundness can be enhanced, thereby ensuring its safety and durability.
- Q:What are the guidelines for the proper anchoring of steel rebars in walls?
- To ensure the structural integrity and stability of the construction, it is crucial to properly anchor steel rebars in walls. Here are some guidelines to adhere to for the correct anchoring of steel rebars in walls: 1. Determine the necessary rebar size and spacing: The design specifications and load requirements dictate the size and spacing of rebars. Consult a structural engineer or refer to building codes for the appropriate rebar size and spacing. 2. Clean and prepare the concrete surfaces: Prior to anchoring the rebars, ensure that the concrete surfaces are clean and devoid of dust, debris, and loose material. Utilize a wire brush or compressed air to eliminate any contaminants. 3. Employ appropriate anchoring techniques: The most widely used method for anchoring steel rebars in walls is embedding them into the concrete. Ensure secure embedding by following these steps: a. Drill holes: Drill holes in the concrete wall at designated locations and depths, ensuring the hole diameter matches the rebar size. b. Clean the drilled holes: Utilize compressed air or a brush to remove any dust or debris from the drilled holes. c. Insert rebars: Insert the rebars into the drilled holes, making sure they reach the required embedment depth. d. Maintain proper spacing: Follow design requirements to maintain the specified spacing between rebars. e. Secure rebars: Use suitable anchoring materials like epoxy resin or grout to secure the rebars in place. Adhere to the manufacturer's instructions for mixing and applying the anchoring material. f. Verify proper alignment: Before the anchoring material sets, ensure the rebars are correctly aligned both horizontally and vertically. 4. Allow sufficient curing time: After anchoring the rebars, allow ample time for the anchoring material to cure. This guarantees that the rebars are firmly secured in place. 5. Adequately protect the rebars: Once the rebars are anchored, protect them from corrosion by applying a suitable corrosion-resistant coating or by using corrosion-resistant rebars. It is imperative to adhere to these guidelines, as improper anchoring of steel rebars can compromise the structural integrity of the walls and pose safety risks. Always consult a qualified structural engineer or building professional for specific guidelines tailored to your project.
- Q:What is the process of reinforcing concrete walls with steel rebars?
- The process of reinforcing concrete walls with steel rebars involves several steps. First, the design and placement of rebars are determined based on the structural requirements. Then, the concrete wall is prepared by cleaning and ensuring a strong bond with the rebars. Next, the rebars are cut and bent according to the specified dimensions and patterns. These rebars are then placed in the desired positions within the formwork, ensuring proper spacing and alignment. Once the rebars are in place, the concrete is poured, encapsulating the rebars and forming a solid structure. The concrete is allowed to cure and harden, creating a reinforced concrete wall that is stronger and more resistant to cracking or structural failure.
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Steel Rebar,Reinforcement Steel Bar,Structural Steel bar
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT or LC
- Min Order Qty:
- 100 m.t.
- Supply Capability:
- 100000 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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