Reinforcing Deformed Steel Bars with Grade HRB400
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 20000 m.t./month
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OKorder Financial Service
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Specification
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 Africa, 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 by OKorder.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.
Q4:What's your payment terms ?
A4:Mostly,we collect the money by T/T and LC at sight . We also accept time LC at 90/120 days sight.
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- Q: What are the factors to consider while designing a reinforced concrete structure with steel rebars?
- To ensure the strength, durability, and safety of a reinforced concrete structure with steel rebars, careful consideration of various factors is required. The following are key factors to consider: 1. Structural Requirements: The initial step involves determining the structure's specific purpose and load-bearing capacity. This entails considering its intended use, maximum load, and potential dynamic loads like wind or earthquakes. 2. Material Selection: Choosing the correct type and grade of concrete and steel rebars is crucial. The concrete mix should possess sufficient strength, workability, and durability to withstand anticipated conditions. Similarly, the rebars should have adequate yield strength and corrosion resistance to maintain structural integrity over time. 3. Reinforcement Layout: The design should include an appropriate arrangement and spacing of rebars to evenly distribute the load and prevent cracking or structural failure. This requires determining the size, quantity, and arrangement of rebars based on calculated forces and bending moments. 4. Concrete Cover: The concrete cover refers to the thickness of concrete surrounding the rebars. Providing sufficient cover is essential to protect the rebars from corrosion, fire, and environmental factors. The cover thickness should be determined based on exposure conditions and required durability. 5. Bonding between Concrete and Rebars: Ensuring proper bonding between the concrete and rebars is vital for effective force transfer. The design should consider factors such as mechanical interlocking, chemical adhesion, and surface treatment to establish a strong bond and prevent slippage or separation. 6. Construction Considerations: The design should account for practical construction aspects such as formwork, concrete placement, and compaction. It should also incorporate appropriate detailing for construction joints, lap splices, and rebar anchorage to ensure proper installation and ease of construction. 7. Serviceability and Durability: The design should address serviceability requirements like deflection limits, cracking control, and long-term performance. Additionally, factors impacting durability, such as moisture exposure, chemical exposure, temperature variations, and the potential for corrosion, should be considered. 8. Quality Control and Inspection: Implementing quality control measures, including material testing, construction monitoring, and completed work inspection, is crucial to ensure the design requirements are met. Regular inspections and adherence to construction standards and codes are essential for the overall integrity and safety of the structure. By considering these factors and adhering to appropriate design codes and standards, a reinforced concrete structure with steel rebars can be designed to provide the desired strength, durability, and safety throughout its lifespan.
- Q: What are the different types of steel rebars used in elevated highways?
- The different types of steel rebars used in elevated highways include carbon steel rebars, epoxy-coated rebars, galvanized rebars, and stainless steel rebars.
- 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: What is the average lifespan of steel rebars in a structure?
- The average lifespan of steel rebars in a structure can vary depending on various factors such as the quality of the steel, environmental conditions, and maintenance practices. However, in general, steel rebars are designed to have a lifespan of around 50 to 100 years in a well-maintained structure.
- Q: How do steel rebars contribute to the strength of concrete structures?
- There are multiple ways in which steel rebars contribute to the strength of concrete structures. Firstly, they enhance the tensile strength of the concrete. While concrete is strong when compressed, it is weak when under tension. When a concrete structure is subjected to bending or stretching forces, the steel rebars bear the load and prevent the concrete from cracking or failing. Secondly, steel rebars aid in controlling and preventing the spread of cracks in concrete. By being embedded within the concrete, rebars create a reinforcing framework that redistributes stress across the structure. This helps limit the formation and expansion of cracks, ensuring the overall integrity and durability of the concrete structure. Moreover, steel rebars improve the overall structural stability and load-bearing capacity of concrete structures. By distributing the load more evenly, the presence of rebars allows concrete structures to withstand greater external forces, such as the weight of a building or the impact of seismic activity. Additionally, steel rebars contribute to the longevity of concrete structures. The steel used in rebars is highly resistant to corrosion, which is a common issue in concrete structures exposed to harsh environmental conditions or corrosive elements. This corrosion resistance ensures that the rebars maintain their strength and structural integrity over time, extending the lifespan of the concrete structure. To summarize, steel rebars play a significant role in enhancing the strength of concrete structures by improving tensile strength, controlling crack propagation, enhancing structural stability, and increasing longevity. Their presence ensures that concrete can withstand various external forces and maintain its structural integrity, making them an essential component in the construction of durable and reliable concrete structures.
- 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: Can steel rebars be used in pedestrian bridge construction?
- Indeed, in the construction of pedestrian bridges, steel rebars can certainly be utilized. It is quite common to incorporate steel rebars as reinforcement in concrete structures, including bridges. By doing so, the structural integrity and strength of the bridge are greatly enhanced, guaranteeing its capability to withstand diverse loads and forces. Steel rebars furnish the indispensable reinforcement to counteract tension, bending, and shear forces, thus rendering them an optimal selection for pedestrian bridge construction. In addition, steel rebars possess exceptional durability and corrosion resistance, and are easily accessible, thereby establishing them as an economical and dependable alternative for bridge construction.
- Q: Can steel rebars be used in tunnel lining construction?
- Yes, steel rebars can be used in tunnel lining construction. Rebars provide reinforcement and strength to the concrete used in tunnel lining, making it more durable and resistant to structural stresses.
- Q: How are steel rebars classified based on their shapes?
- Various types of steel rebars are categorized according to their shapes. Among the commonly used types is the plain round bar, which is a straight cylindrical rod without any deformations or protrusions. Another type is the deformed bar, which possesses deformations or ribs on its surface. These deformations effectively enhance the bond between the bar and the concrete, thereby improving the overall structural strength. Deformed bars come in different patterns of deformations, including ribbed, twisted, and indented. Ribbed bars have evenly spaced protrusions along their length, which increase the surface area and enhance the grip with the concrete. Twisted bars, on the other hand, showcase a helical pattern of deformations, providing a strong grip. Indented bars feature small indentations or notches on their surface, thereby enhancing the bond strength. In addition to plain round and deformed bars, there are also specialized shapes available for specific applications. These include square bars, which have a square cross-section, and rectangular bars, which possess a rectangular cross-section. These shapes are often utilized in scenarios where the rebars need to be positioned in a particular orientation or where additional strength is required in a specific direction. Overall, the classification of steel rebars based on their shapes permits the selection of the most suitable type for various construction projects, taking into account factors such as bonding strength, load-bearing capacity, and specific design requirements.
- Q: What is the minimum yield strength of steel rebars?
- The minimum yield strength of steel rebars is typically around 40,000 pounds per square inch (psi).
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Reinforcing Deformed Steel Bars with Grade HRB400
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 20000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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