Deformed Bar HRB335 HRB400 Hot Rolled High Quality 6mm-50mm
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT or LC
- Min Order Qty:
- -
- Supply Capability:
- -
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
You Might Also Like
Product Description:
OKorder is offering Deformed Bar HRB335 HRB400 Hot Rolled High Quality 6mm-50mmat 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
Product Advantages:
OKorder's Deformed Bar HRB335 HRB400 Hot Rolled High Quality 6mm-50mm are durable, strong, and resist corrosion, exact size, regular package, chemical and mechanical properties are stable.
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: BS4449
Certificates: ISO, SGS, BV, CIQ
Diameter: 6mm,8mm,10mm,12mm,14mm,16mm,18mm,20mm,
22mm,25mm,28mm,32mm,36mm,40mm,50mm
Length: 6M, 9M,12M or as required
Packaging: Export packing, nude packing, bundled
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 |
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.
- Q: What are the guidelines for preventing steel rebars from rusting during construction?
- To prevent steel rebars from rusting during construction, there are several guidelines that can be followed. These include: 1. Proper storage: Steel rebars should be stored in a dry and covered area to protect them from moisture. They should be kept off the ground and away from any sources of water, such as puddles or wet concrete. 2. Surface preparation: Before installation, rebars should be inspected 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. The coating should be applied evenly and in accordance with the manufacturer's instructions. 4. Proper spacing: When placing rebars in concrete, it is important to ensure that they are adequately spaced to allow for proper ventilation and prevent moisture from being trapped between them. The spacing should be as per the design specifications or as recommended by structural engineers. 5. Adequate concrete cover: The rebars should have an adequate concrete cover to protect them from moisture and corrosion. This cover thickness should be as per the design requirements and should be maintained during construction. 6. Proper curing: After installation, the concrete should be properly cured 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, ensuring the structural integrity and longevity of the project.
- Q: What is the effect of steel rebars on the formwork design?
- The formwork design in construction projects is significantly impacted by steel rebars. These reinforcement bars, also known as rebars, play a crucial role in providing strength and stability to concrete structures. One important aspect influenced by steel rebars in formwork design is the proper positioning and spacing of the rebars within the formwork. To ensure the structural integrity of the concrete element, the formwork must be designed to accommodate the rebars and allow for their correct placement. This may involve creating openings or recesses in the formwork to facilitate the passage of the rebars. The presence of steel rebars also affects the size and dimensions of the formwork. As the rebars occupy space within the concrete element, the formwork needs to be adjusted accordingly to accommodate these additional materials. This may require increasing the size or thickness of the formwork to provide the desired concrete cover over the rebars. Another factor influenced by steel rebars in formwork design is the consideration of the weight and load-bearing capacity of the formwork system. The addition of steel rebars significantly increases the weight of the concrete structure, necessitating the design of formwork that can withstand this additional load. This may involve using stronger and more durable materials for the formwork and ensuring proper bracing and support. Furthermore, the presence of steel rebars can impact the formwork construction process. The formwork design must carefully consider the installation and removal of the rebars without compromising the integrity of the formwork system. This may involve incorporating removable sections or panels in the formwork design to facilitate the placement and removal of the rebars. In conclusion, steel rebars have a profound impact on formwork design in construction projects. Proper consideration and planning are necessary to ensure the correct positioning, spacing, and support of rebars within the formwork. The presence of rebars also affects the size, dimensions, weight, and construction process of the formwork system. Overall, the successful construction of durable and structurally sound concrete elements relies on the proper integration of steel rebars within the formwork design.
- Q: How are steel rebars different from other types of reinforcement?
- Steel rebars, also known as reinforcing bars, are different from other types of reinforcement primarily due to their composition and strength. Unlike other types of reinforcement such as fiberglass or carbon fiber, steel rebars are made of steel, which gives them exceptional strength and durability. One of the key differences between steel rebars and other types of reinforcement is their ability to withstand high tensile forces. Steel has a high tensile strength, meaning it can resist being stretched or pulled apart. This makes steel rebars ideal for reinforcing concrete structures that are subjected to significant tensile loads, such as bridges, buildings, and highways. Another distinguishing feature of steel rebars is their ability to bond well with concrete. The ridges or deformations on the surface of rebars provide better adhesion between the steel and concrete, allowing for 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 allows engineers to choose the most appropriate type of rebar based on the specific requirements of the construction project. Additionally, steel rebars are highly resistant to corrosion, especially when they are properly coated or protected. This resistance to corrosion ensures the longevity and durability of the reinforced concrete structure, even in harsh environments or exposure to moisture. In summary, steel rebars differ from other types of reinforcement 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: What is the process of joining steel rebars together?
- The process of joining steel rebars together is commonly known as rebar splicing or rebar connection. It is a crucial step in reinforcing concrete structures to ensure structural integrity and strength. There are several methods for joining steel rebars, each with its own advantages and suitability depending on the specific requirements of the project. Here are some common techniques: 1. Lap Splicing: This is the most traditional and widely used method. It involves overlapping two rebars and tying them together using wire or steel tie bars. The length of the overlap is usually specified by engineering codes and standards. 2. Mechanical Splicing: Mechanical splicing involves using specially designed couplers or connectors to join two rebars together. These couplers are typically threaded or tapered, allowing the rebars to be screwed or wedged into the connector. Mechanical splicing provides a more reliable and efficient connection compared to lap splicing. 3. Welding: In certain cases, rebars can be joined together through welding. This method involves heating the rebars to their melting point and fusing them together using an electric arc. Welded splices are typically used for large-scale construction projects where high strength and durability are required. 4. Compression Splicing: Compression splicing utilizes compression fittings or sleeves to join rebars together. The rebars are inserted into the sleeves, and then a hydraulic press is used to compress the fitting, creating a strong connection. Compression splicing is particularly useful when dealing with rebars of different sizes or in areas with limited space for lap splicing. The selection of the appropriate method for joining steel rebars depends on factors such as the structural design, load requirements, and construction constraints. It is important to consult with structural engineers and adhere to local building codes and regulations to ensure proper and safe execution of the rebar splicing process.
- Q: Are steel rebars prone to rusting?
- Steel rebars have a tendency to rust. Rebars are composed mainly of carbon steel, which contains iron. When exposed to moisture and oxygen, the iron in steel rebars undergoes a chemical reaction known as oxidation, resulting in the formation of rust or iron oxide. This process can be accelerated in environments with high humidity, coastal regions with saltwater exposure, or when the rebars come into contact with water or other corrosive substances. The rusting of steel rebars can weaken their structural integrity and compromise the strength and durability of concrete structures. Therefore, it is crucial to protect rebars from rust by applying anti-corrosion coatings or using stainless steel rebars in areas prone to rusting. Regular maintenance and inspection are also important for promptly identifying and addressing any rust-related issues.
- Q: What are the different types of steel rebars used in precast concrete constructions?
- There are several types of steel rebars commonly used in precast concrete constructions, including plain round bars, deformed bars, epoxy-coated bars, stainless steel bars, and galvanized bars. Each type offers specific properties and advantages depending on the project requirements and environmental conditions.
- Q: How do steel rebars resist fatigue and cyclic loading?
- Steel rebars are specifically designed to resist fatigue and cyclic loading due to their unique properties and design. Firstly, steel rebars are made from high-strength steel, which has excellent resistance to fatigue. High-strength steel has a higher yield strength and ultimate tensile strength compared to regular steel, allowing it to withstand repetitive loading without undergoing significant deformation or failure. This property helps rebars endure cyclic loading without experiencing fatigue failure. Moreover, steel rebars are reinforced with rib patterns along their surface. These ribs increase the surface area, enhancing the bond between the rebar and surrounding concrete. This increased bond strength helps to distribute the cyclic loads more evenly, reducing the localized stress concentration. By distributing the loads, the rebars are better able to resist fatigue and cyclic loading. Additionally, rebars are often designed with a specific diameter and spacing to optimize their load-carrying capacity and resist fatigue. The design takes into consideration the anticipated cyclic loads, ensuring that the rebars are adequately spaced and sized to handle the expected stresses. The spacing between rebars also allows for proper concrete flow and consolidation during construction, further enhancing the overall performance and resistance to fatigue. Furthermore, proper installation and quality control during construction play a crucial role in ensuring the rebars' resistance to fatigue and cyclic loading. Adequate concrete cover, proper placement within the concrete, and secure anchoring of the rebars all contribute to their ability to withstand cyclic loading over time. In summary, steel rebars resist fatigue and cyclic loading through their high-strength steel composition, ribbed surface patterns, optimized spacing and diameter, and proper installation techniques. These features work collectively to enhance their load-carrying capacity, distribute loads more evenly, and minimize stress concentration, resulting in improved resistance to fatigue and cyclic loading.
- Q: How do steel rebars affect the overall cost of a construction project?
- Steel rebars can significantly affect the overall cost of a construction project. They are essential for providing structural strength and reinforcement to concrete structures, ensuring durability and safety. The cost of steel rebars depends on factors such as quantity, grade, and market price fluctuations. However, since rebars are often a major component in construction projects, their cost can significantly impact the overall budget, making it crucial to carefully estimate and manage their use to ensure cost-effectiveness.
- Q: What is the role of steel rebars in preventing concrete cracking?
- Steel rebars play a crucial role in preventing concrete cracking by providing reinforcement and enhancing the overall strength and durability of concrete structures. When concrete undergoes tensile stress, it tends to crack due to its low tensile strength. However, steel rebars, which are typically embedded within the concrete, act as a reinforcement by absorbing and distributing these tensile forces throughout the structure. The presence of steel rebars in concrete helps to counteract the natural tendency of concrete to crack under tension. When a load is applied to the concrete, the rebars bear a significant portion of the tensile stress, preventing it from being solely concentrated on the concrete matrix. This distribution of forces helps to minimize the formation and propagation of cracks, ensuring the structural integrity of the concrete. Moreover, steel rebars also contribute to the overall strength and durability of concrete structures. The combination of steel's high tensile strength and concrete's compressive strength results in reinforced concrete, which exhibits superior resistance to various external forces such as bending, shear, and seismic loads. This added strength makes the concrete less susceptible to cracking and enhances its ability to withstand heavy loads and environmental factors over time. In summary, steel rebars play a crucial role in preventing concrete cracking by providing reinforcement, absorbing and distributing tensile forces, and enhancing the overall strength and durability of concrete structures. Their presence significantly improves the structural integrity and longevity of concrete, making it a reliable and widely used construction material.
- Q: What is the effect of carbonation on steel rebars?
- The primary impact of carbonation on steel rebars is negative. Carbonation is the process by which carbon dioxide from the atmosphere reacts with the alkaline compounds in concrete, resulting in a decrease in its pH level. This pH reduction gradually diminishes the protective layer of steel rebars known as the passivation layer. When carbonation compromises the passivation layer, the steel rebars become more susceptible to corrosion. Carbon dioxide reacts with moisture in the concrete, generating carbonic acid, which further lowers the pH level and speeds up the corrosion process. As corrosion advances, the steel rebars may lose their structural integrity, compromising the overall strength and durability of the concrete structure. Additionally, the expansion of corrosion products can apply pressure on the surrounding concrete, causing cracking and spalling. This exposes the steel rebars to more moisture and oxygen, exacerbating the corrosion process. Furthermore, carbonation can diminish the effectiveness of any protective coatings applied to the rebars, making them even more prone to corrosion. To mitigate the effects of carbonation on steel rebars, various preventive measures can be implemented. These measures include using concrete that is less permeable to carbon dioxide, ensuring appropriate concrete cover thickness, and employing corrosion-resistant steel with higher levels of chromium and/or other alloying elements. Regular monitoring and maintenance of concrete structures are also crucial to detect and address any signs of corrosion at an early stage. In conclusion, carbonation can have an adverse impact on steel rebars by compromising the passivation layer, resulting in corrosion and weakening of the structure. Therefore, it is essential to implement preventive measures and regularly maintain steel-reinforced concrete structures to ensure their long-term durability and safety.
Send your message to us
Deformed Bar HRB335 HRB400 Hot Rolled High Quality 6mm-50mm
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT or LC
- Min Order Qty:
- -
- Supply Capability:
- -
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
Similar products
Hot products
Hot Searches
Related keywords
