Hot Rolled Rebars with High Quality and Best Price
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 10000 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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OKorder is offering high quality Hot Rolled Rebars 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 European, North American and Asian markets. We provide quotations within 24 hours of receiving an inquiry and guarantee competitive prices.
Product Applications:
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..
Label: to be specified by customer, generally, each bundle has 1-2 labels
Product Advantages:
OKorder's Hot Rolled Rebars are durable, strong, and resist corrosion.
Main Product Features:
· Premium quality
· Prompt delivery & seaworthy packing (30 days after receiving deposit)
· Corrosion resistance
· Can be recycled and reused
· Mill test certification
· Professional Service
· Competitive pricing
Product Specifications:
Manufacture: Hot rolled
Grade: HRB400 – HRB500
Certificates: ISO, SGS, BV, CIQ
Length: 6m – 12m, as per customer request
Packaging: Export packing, nude packing, bundled
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 |
FAQ:
Q1: Why buy Materials & Equipment from OKorder.com?
A1: All products offered byOKorder.com are carefully selected from China's most reliable manufacturing enterprises. Through its ISO certifications, OKorder.com adheres to the highest standards and a commitment to supply chain safety and customer satisfaction.
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 begin production. The specific shipping date is dependent upon international and government factors, but is typically 7 to 10 workdays.
Images:
- Q:What is the process of reinforcing existing concrete structures with steel rebars?
- The process of reinforcing existing concrete structures with steel rebars involves several steps to enhance the strength and durability of the structure. Firstly, a thorough inspection and assessment of the existing concrete structure is conducted to determine its condition and identify areas that require reinforcement. This involves examining the concrete for cracks, signs of degradation, or any other structural issues. Once the areas requiring reinforcement are identified, the next step is to prepare the surface. This involves cleaning the concrete surface to remove any loose debris, dirt, or contaminants that may hinder the bonding of the rebars with the concrete. This can be done using various methods such as pressure washing or sandblasting. After the surface preparation, the rebars are then placed strategically within the concrete structure. The positioning and spacing of the rebars are crucial to ensure optimal reinforcement and structural integrity. This is typically done by drilling holes or creating channels in the concrete where the rebars will be placed. Next, the rebars are inserted into the holes or channels, ensuring that they are properly aligned and secured. The rebars are typically cut to the required length and bent into the desired shape to fit the specific reinforcement needs of the structure. Once the rebars are in place, they are then anchored or secured to the existing concrete using various methods. This can be achieved through the use of epoxy adhesive, mechanical anchors, or by embedding the rebars into fresh concrete poured around them. Finally, the concrete is repaired or restored to its original condition, covering the rebars and ensuring a smooth and even surface. This can involve patching up any holes or channels created during the reinforcement process and finishing the surface to match the surrounding concrete. Overall, the process of reinforcing existing concrete structures with steel rebars requires careful planning, proper surface preparation, precise placement of rebars, secure anchoring, and appropriate finishing to achieve a strengthened and long-lasting structure.
- Q:How do steel rebars contribute to sustainable construction?
- Steel rebars contribute to sustainable construction in several ways. Firstly, steel is a highly durable material, which means that structures reinforced with steel rebars have a longer lifespan, reducing the need for frequent repairs or replacements. This leads to lower maintenance and replacement costs, saving resources in the long run. Additionally, steel rebars can enhance the strength and stability of structures, allowing for the construction of taller and more complex buildings. This vertical growth helps to optimize land use and reduce the need for urban sprawl, preserving valuable open spaces and minimizing the environmental impact of construction. Furthermore, steel is a recyclable material, and steel rebars can be easily recycled and repurposed at the end of their lifespan. This reduces the demand for new steel production and minimizes the carbon footprint associated with manufacturing processes. Recycling steel also helps in reducing waste disposal in landfills. In summary, steel rebars contribute to sustainable construction by providing durability, enhancing structural strength, optimizing land use, and promoting recycling, all of which contribute to the efficient use of resources and the reduction of environmental impacts.
- Q:What is the effect of welding defects on the performance of steel rebars?
- Welding defects in steel rebars can have significant negative effects on their performance. These defects, such as porosity, cracks, and inadequate fusion, weaken the structural integrity of the rebars, making them prone to failure under stress or load. The presence of welding defects compromises the rebars' ability to withstand bending, tension, and compression forces, thereby reducing their overall strength and durability. This can lead to structural failures, increased maintenance costs, and potential safety hazards in construction projects. Therefore, it is crucial to ensure proper welding techniques and inspections to minimize welding defects and maintain the desired performance of steel rebars.
- Q:How are steel rebars installed in construction projects?
- Steel rebars are installed in construction projects as a vital component of reinforced concrete structures. The process of installing steel rebars involves a series of steps. Firstly, the construction plans and specifications are reviewed to determine the required size, length, and placement of the rebars. This information is crucial to ensure the rebars provide the necessary strength and support to the structure. Next, the rebars are cut and shaped according to the specifications. This is typically done using specialized tools such as rebar cutters and benders. The rebars are usually supplied in long lengths and are cut to the required size on-site. Once the rebars are prepared, they are positioned and secured in the formwork or molds that will shape the concrete. This is done by placing the rebars at the desired locations and using wire or rebar ties to hold them in place. The ties are typically twisted around the rebars using pliers or a similar tool. This ensures that the rebars remain in their correct positions during the pouring and curing of the concrete. During the concrete pouring phase, the rebars are carefully positioned to ensure they are evenly distributed and adequately spaced. This is important for providing structural integrity and preventing the occurrence of weak spots in the concrete. After the concrete is poured, it is left to cure and harden. During this time, the rebars become embedded within the concrete, forming a strong bond. This bond creates a reinforced concrete structure that is capable of withstanding various loads and forces. In summary, the installation of steel rebars in construction projects involves cutting and shaping the rebars, positioning them correctly within the formwork, and securing them in place using ties. This process is crucial for creating reinforced concrete structures that are strong and durable.
- Q:What are the guidelines for preventing steel rebars from rusting during construction delays?
- To prevent steel rebars from rusting during construction delays, it is important to follow some guidelines: 1. Proper Storage: Store the rebars in a covered and dry area away from moisture and direct sunlight. The storage area should be well-ventilated to prevent condensation. 2. VCI (Volatile Corrosion Inhibitor) Products: Use VCI products such as VCI paper, films, or emitters. These products release corrosion-inhibiting chemicals that create a protective layer on the rebars, preventing rust formation. 3. Proper Packaging: If rebars are being transported or stored for an extended period, ensure they are properly packaged. Wrap the rebars tightly with VCI paper or plastic sheets, and secure the packaging with tape to prevent moisture ingress. 4. Dehumidification: Use dehumidifiers in areas where the rebars are stored to reduce humidity levels. This helps in maintaining the dryness of the surrounding environment and prevents condensation on the rebars. 5. Regular Inspection: Periodically inspect the rebars for any signs of rust formation. If rust is detected, it should be immediately cleaned and treated with anti-corrosion coatings to prevent further damage. 6. Protective Coatings: Apply anti-corrosion coatings on rebars to provide an additional protective layer. These coatings can be epoxy-based or zinc-based, depending on the environmental conditions and project requirements. 7. Remove Standing Water: Ensure that there is no standing water near the rebars, as it can accelerate the rusting process. Proper drainage systems should be in place to prevent water accumulation. 8. Monitoring: Regularly monitor the environmental conditions, including temperature and humidity levels, to identify any potential risks for rust formation. Adjust the storage conditions accordingly, if needed. By following these guidelines, construction delays can be managed effectively, and the steel rebars can be protected from rust formation, ensuring the structural integrity of the project.
- Q:What is the role of steel rebars in the construction of retaining walls?
- Steel rebars play a crucial role in the construction of retaining walls as they provide reinforcement and strength to the wall structure. They are embedded within the concrete to enhance its tensile strength and prevent cracking or collapsing under pressure. The rebars distribute the load evenly and help the retaining wall resist the lateral forces exerted by the soil or water behind it, ensuring stability and durability of the structure.
- Q:What are the safety precautions when working with steel rebars?
- To minimize the chance of accidents and injuries when working with steel rebars, it is crucial to adhere to various safety measures. Consider the following key precautions: 1. Personal Protective Equipment (PPE): Ensure that you always wear the appropriate PPE, which includes safety glasses or goggles, gloves, steel-toed boots, and a hard hat. This will shield you from potential dangers like falling objects, flying debris, or accidental contact with sharp edges. 2. Training and awareness: Make certain that all workers involved in handling steel rebars receive proper training on safe work practices and are knowledgeable about the potential hazards associated with this work. Regular safety meetings and reminders can help reinforce this knowledge. 3. Proper lifting techniques: Given that steel rebars can be heavy and difficult to handle, employ proper lifting techniques such as bending at the knees and using leg muscles to avoid strains or back injuries. If necessary, utilize mechanical lifting aids like cranes or hoists to lessen the physical strain on workers. 4. Secure storage and handling: Store steel rebars securely and in an organized manner to prevent them from falling or rolling onto workers. When moving or transporting rebars, ensure they are properly secured to prevent shifting or falling during transit. 5. Cutting and bending precautions: When cutting or bending steel rebars, use appropriate tools and equipment like bolt cutters or rebar benders. Always wear protective gloves and ensure that the cutting or bending area is clear of other workers to prevent accidental injuries. 6. Fall protection: When working at elevated heights, such as during the installation of rebars in elevated structures, ensure that proper fall protection measures are in place. This may involve using safety harnesses, guardrails, or safety nets to prevent falls. 7. Fire prevention: Steel rebars can produce sparks when cut or welded, so it is essential to have adequate fire prevention measures in place. Clear the work area of flammable materials, have readily available fire extinguishers, and adhere to appropriate welding safety protocols. 8. Regular equipment maintenance: Keep all tools and equipment used for handling steel rebars well-maintained and in good working condition. Regularly inspect them for any damage or defects that could compromise safety. By adhering to these safety precautions, you can establish a safer working environment when dealing with steel rebars and reduce the risk of accidents or injuries.
- Q:How are steel rebars different from other types of reinforcement?
- The composition and strength of steel rebars set them apart from other types of reinforcement. Unlike fiberglass or carbon fiber, which are commonly used for reinforcement, steel rebars are made of steel, giving them exceptional strength and durability. One notable distinction between steel rebars and other reinforcement types is their capacity to withstand high tensile forces. Steel possesses a high tensile strength, allowing it to resist stretching or being pulled apart. This characteristic makes steel rebars ideal for reinforcing concrete structures that experience significant tensile loads, such as bridges, buildings, and highways. Another unique feature of steel rebars is their ability to bond effectively with concrete. The ridges or deformations on the rebars' surface enhance adhesion between the steel and concrete, facilitating efficient load transfer. This bond ensures that the concrete and steel work together as a composite material, enhancing the overall strength and structural integrity of the reinforced concrete structure. Steel rebars also offer versatility in terms of shape and size. They are available in various diameters, lengths, and shapes, including round, square, and deformed. This variety allows engineers to select the most suitable rebar type based on the specific requirements of the construction project. Moreover, steel rebars exhibit high resistance to corrosion, particularly when properly coated or protected. This corrosion resistance ensures the longevity and durability of the reinforced concrete structure, even in harsh environments or exposure to moisture. In conclusion, steel rebars stand out from other reinforcement types due to their exceptional strength, ability to withstand high tensile forces, excellent bond with concrete, versatility in shape and size, and resistance to corrosion. These qualities make steel rebars the most commonly used and preferred choice for reinforcing concrete structures in the construction industry.
- Q:Are steel rebars resistant to chemical exposure?
- Chemical exposure is usually not a problem for steel rebars due to their resistance. The strength and durability of steel make it less likely to corrode or degrade when it comes into contact with chemicals. However, some chemicals can still harm steel rebars. For instance, acids like sulfuric acid can gradually corrode steel and weaken its structure. Similarly, highly alkaline substances can also cause corrosion in steel rebars. Therefore, even though steel rebars are generally resistant to various chemicals, it is crucial to consider the specific chemical environment and take necessary precautions to safeguard them from potential damage.
- Q:How are steel rebars protected against theft on construction sites?
- Steel rebars are often protected against theft on construction sites through various security measures. These measures can include the use of surveillance cameras, security guards, fencing, and locked storage areas. Additionally, some construction sites may employ the use of tagging or marking systems on the rebars themselves to make them easily traceable and identifiable.
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Hot Rolled Rebars with High Quality and Best Price
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 10000 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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