Hot Rolled Deformed Bars with HRB 400-500
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 10000 m.t./month
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Quality Product, Order Online Tracking, Timely Delivery
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Product Description:
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: What is the normal tolerance of Hot Rolled Mild Steel Angle Beams for Structures and for Buildings?
A3: Normally 3%-5%, but we can also produce the goods according to the customers' requests.
Images:
- Q: What are the listed companies that produce wire rod and thread steel?
- It is commonly known as steel hot rolled ribbed bar. The difference between round bar and round bar is that the surface has longitudinal ribs and transverse ribs, usually with two longitudinal ribs and transverse ribs uniformly distributed along the length direction. The thread steel is a kind of small section steel, mainly used for the skeleton of reinforced concrete building member, the raw material for producing thread steel, and the carbon billet is a carbon structural steel or low-alloy structural steel which is treated by calm melting.
- Q: What is the process of installing steel rebars in concrete?
- The process of installing steel rebars in concrete involves several steps. First, the concrete surface is prepared by cleaning it from any debris or loose particles. Then, the rebars are cut, shaped, and positioned according to the structural requirements using supports or chairs to maintain proper spacing and elevation. Next, the rebars are securely tied together at the intersections using wire or mechanical connectors. After that, the rebars are placed within the concrete forms, ensuring they are adequately centered and do not touch the sides or bottom. Finally, the concrete is poured, encapsulating the rebars, and left to cure, creating a strong bond between the steel and concrete for enhanced structural integrity.
- Q: How do steel rebars impact the overall cost of a construction project?
- Steel rebars can have a significant impact on the overall cost of a construction project. Firstly, the cost of steel rebars themselves can be quite substantial, especially if large quantities are required. The prices of steel rebars are influenced by factors such as market demand, availability, and fluctuations in raw material prices. Moreover, the installation of steel rebars involves additional expenses such as labor, tools, and equipment. Skilled workers are needed to accurately place the rebars according to the construction plans, and this can increase the cost of labor. Additionally, specialized tools and equipment are required to cut, bend, and tie the rebars, adding to the project's expenses. The use of steel rebars also affects the construction timeline and subsequently impacts the project's cost. Construction projects often have strict deadlines, and any delay in the delivery or installation of rebars can result in additional expenses due to extended labor costs, idle equipment, and potential penalties for delayed completion. Furthermore, steel rebars play a crucial role in providing structural strength and durability to the building. By reinforcing concrete structures, steel rebars enhance their load-bearing capacity and resistance to various forces such as earthquakes and extreme weather conditions. This can reduce the risk of structural failures and the need for costly repairs or replacements in the future. In summary, steel rebars can significantly affect the overall cost of a construction project due to their initial purchase cost, installation expenses, impact on the construction timeline, and the long-term benefits they provide in terms of structural integrity and durability. Proper planning, procurement, and installation of steel rebars are essential to manage costs effectively and ensure the successful completion of the project within the allocated budget.
- Q: Can steel rebars be used in both residential and commercial construction?
- Yes, steel rebars can be used in both residential and commercial construction. They are commonly used to reinforce concrete structures such as foundations, columns, beams, and slabs in both types of construction projects.
- Q: Can steel rebars be used in corrosive environments?
- To ensure the longevity and structural integrity of steel rebars in corrosive environments, certain precautions must be taken. Corrosive environments, like those with high levels of moisture, saltwater, or chemical exposure, can accelerate the corrosion process of steel rebars and potentially cause structural damage. To mitigate this risk, there are various strategies that can be implemented. One common approach involves the use of corrosion-resistant reinforcing materials, such as stainless steel rebars or epoxy-coated rebars. These materials offer an additional layer of protection against corrosion and have proven to be effective even in highly corrosive environments. Another approach involves the utilization of corrosion inhibitors, which are chemicals that can be added to the concrete mix or directly applied to the steel surface. These inhibitors create a protective layer around the rebars, inhibiting corrosive agents from reaching the steel and slowing down the corrosion process. Furthermore, it is crucial to maintain an adequate thickness of concrete cover to protect the rebars from exposure to corrosive elements. Sufficient concrete cover acts as a barrier, preventing moisture and other corrosive agents from reaching the steel. Regular inspection and maintenance play a vital role in identifying early signs of corrosion. If corrosion is detected, appropriate measures should be taken to repair or replace the affected rebars, ensuring the structural integrity of the project. In conclusion, while steel rebars can be used in corrosive environments, it is essential to consider the specific conditions and employ the appropriate strategies to protect against corrosion. By using corrosion-resistant materials, applying inhibitors, maintaining proper concrete cover, and conducting regular inspections, the lifespan and performance of steel rebars in corrosive environments can be significantly enhanced.
- 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: Can steel rebars be painted or coated?
- Yes, steel rebars can be painted or coated. Painting or coating steel rebars helps to protect them from corrosion and extend their lifespan. It is a common practice in construction and reinforcement projects to apply paint or protective coatings on steel rebars to enhance their durability and resistance to environmental factors.
- Q: How do steel rebars affect the shrinkage and creep of concrete?
- Steel rebars can have a significant impact on the shrinkage and creep behavior of concrete. Shrinkage refers to the reduction in volume of concrete due to the loss of moisture during the drying process, while creep refers to the time-dependent deformation of concrete under sustained load. The presence of steel rebars helps to mitigate the shrinkage of concrete. As the concrete shrinks, the rebars, being much stiffer than concrete, resist this shrinkage and provide a restraining effect. This restraint reduces the overall volume change of the concrete and helps to minimize cracking that may occur due to shrinkage. Additionally, the tensile strength of the steel rebars allows them to distribute stress and prevent localized cracking, further reducing the impact of shrinkage on the overall performance of the concrete. In terms of creep, the presence of steel rebars can increase the creep deformation of concrete. This is because the rebars can introduce additional stress and strain into the concrete, leading to greater creep deflections. However, the effect of steel rebars on creep is generally considered to be minor compared to other factors such as the mix design, water-cement ratio, and curing conditions. It is important to note that proper design and detailing of the reinforcement layout can help minimize the impact of steel rebars on shrinkage and creep. Adequate spacing and cover of rebars, as well as appropriate reinforcement ratios, can optimize the performance of both the concrete and the rebars. Additionally, the use of supplementary cementitious materials like fly ash or silica fume can also help reduce shrinkage and mitigate the impact of creep. In summary, steel rebars play a crucial role in minimizing the shrinkage-related issues in concrete by providing restraint and distributing stress. While they may increase the creep deformation of concrete, their impact is generally minor compared to other factors. Proper design and detailing of the reinforcement can optimize the performance of both concrete and steel rebars in terms of shrinkage and creep.
- Q: How do steel rebars contribute to the overall durability of a structure?
- Steel rebars contribute to the overall durability of a structure by providing reinforcement and strength to concrete. They increase the tensile strength of concrete, making it resistant to cracks and fractures. This reinforcement helps the structure withstand external forces such as earthquakes or extreme weather conditions, enhancing its longevity and structural integrity.
- Q: What is the importance of proper alignment of steel rebars in a structure?
- The proper alignment of steel rebars in a structure is crucial for several reasons. Firstly, it ensures structural integrity and strength by distributing loads evenly and resisting forces such as compression, tension, and shear. Improperly aligned rebars can lead to weak points, compromising the stability and safety of the structure. Secondly, proper alignment helps maintain the desired shape and dimensions of the structure. It ensures that the rebars are positioned correctly to support the concrete during pouring, preventing any deformations or irregularities that could impact the overall aesthetics and functionality of the finished structure. Additionally, aligned rebars facilitate efficient construction processes. When rebars are correctly placed, it simplifies the process of pouring concrete, reducing the likelihood of delays or errors during construction. It also allows for easy placement of formwork, enabling smoother and faster construction progress. Lastly, proper alignment of rebars contributes to the longevity and durability of the structure. By ensuring the rebars are correctly positioned, the risk of corrosion and deterioration is minimized. This helps to prolong the lifespan of the structure, reducing maintenance and repair costs in the long run. In conclusion, the importance of proper alignment of steel rebars in a structure cannot be overstated. It enhances structural strength, maintains shape and dimensions, supports efficient construction processes, and increases the longevity of the structure.
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Hot Rolled Deformed Bars with HRB 400-500
- 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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