Deformed Steel Bar ASTM A615 GR40 GR60 Or BS 4449
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Product Description:
OKorder is offering high quality Hot Rolled Steel I-Beams 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
Product Advantages:
OKorder's Steel I-Beams 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: How soon can we receive the product after purchase?
A1: 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.
Q2: What makes stainless steel stainless?
A2: Stainless steel must contain at least 10.5 % chromium. It is this element that reacts with the oxygen in the air to form a complex chrome-oxide surface layer that is invisible but strong enough to prevent further oxygen from "staining" (rusting) the surface. Higher levels of chromium and the addition of other alloying elements such as nickel and molybdenum enhance this surface layer and improve the corrosion resistance of the stainless material.
Q3: Can stainless steel rust?
A3: Stainless does not "rust" as you think of regular steel rusting with a red oxide on the surface that flakes off. If you see red rust it is probably due to some iron particles that have contaminated the surface of the stainless steel and it is these iron particles that are rusting. Look at the source of the rusting and see if you can remove it from the surface.
- Q:What is the role of steel rebars in the construction of railway bridges?
- The role of steel rebars in the construction of railway bridges is to provide reinforcement and strength to the concrete structure. Rebars are embedded within the concrete to enhance its tensile strength, allowing the bridge to withstand heavy loads, vibrations, and environmental factors such as temperature changes. This reinforcement ensures the structural integrity and longevity of the railway bridge, making it safe and durable for train traffic.
- Q:Can steel rebars be used in nuclear power plants?
- Yes, steel rebars can be used in nuclear power plants. However, they need to meet stringent quality control standards and be specifically designed to withstand the demanding conditions and potential exposure to radiation in a nuclear power plant environment.
- Q:Can steel rebars be used in the construction of museums and art galleries?
- Yes, steel rebars can be used in the construction of museums and art galleries. Steel rebars provide structural support and reinforcement, making them suitable for ensuring the stability and durability of the buildings. Additionally, steel rebars can be designed and installed in a way that minimizes their visual impact, preserving the aesthetic appeal of the museums and art galleries.
- Q:How do steel rebars help in preventing cracks in concrete?
- The reinforcement of steel rebars is essential for preventing cracks in concrete and adding strength to the structure. Concrete is strong in compression but weak in tension, meaning it can withstand forces that push or compress it, but it is prone to cracking under pulling or bending forces. To counteract this weakness, steel rebars are embedded within the concrete. They act as a framework, distributing tensile forces evenly throughout the material and preventing the formation and spread of cracks. Additionally, rebars reinforce the structure, increasing its resistance to bending, shearing, and external forces. Furthermore, steel rebars enhance the overall structural integrity of the concrete, thus preventing cracks. During the drying and curing process, concrete tends to shrink and crack. However, with the presence of rebars, the tensile forces caused by shrinkage are absorbed by the steel, reducing or eliminating the formation of cracks. Moreover, steel rebars provide resistance against temperature changes and external loads, which also helps prevent cracks in concrete. They control the expansion and contraction of the material due to temperature fluctuations, minimizing the risk of cracking. Additionally, rebars reinforce the concrete against heavy loads, such as those from traffic or seismic activity, ensuring the structure remains intact and free from cracks. In conclusion, steel rebars are crucial in preventing cracks in concrete by reinforcing the material, distributing forces, absorbing tensile stresses, and enhancing structural integrity. Their presence significantly improves the durability and longevity of concrete structures, making them more resistant to cracking and ensuring their stability over time.
- Q:Are there any restrictions on the use of steel rebars in certain regions?
- Yes, there can be restrictions on the use of steel rebars in certain regions due to building codes, regulations, and safety standards. These restrictions are typically implemented to ensure structural integrity, prevent corrosion, and comply with seismic requirements. It is important to consult local authorities and construction guidelines to determine specific restrictions in a particular region.
- Q:What is the role of steel rebars in preventing structural failures?
- The construction industry relies heavily on steel rebars to prevent structural failures. These reinforcing bars, also known as steel rebars, are vital for strengthening and reinforcing concrete structures, ensuring their durability and ability to withstand various forces. One of the main functions of steel rebars is to improve the tensile strength of concrete. While concrete is excellent for compression, it lacks strength in tension. By incorporating steel rebars into concrete structures, this weakness can be overcome by providing resistance to tensile forces. Acting as reinforcements, steel rebars effectively absorb and distribute tensile stresses throughout the structure, preventing the formation of cracks and fractures, and ultimately averting structural failures. Moreover, steel rebars play a critical role in enhancing overall structural stability and preventing failures. By reinforcing concrete, rebars enhance the structural integrity and increase the load-bearing capacity of the structure. This allows the structure to withstand heavier loads and forces, including those caused by natural disasters, extreme weather conditions, or human activities. Steel rebars are also indispensable in preventing structural failures resulting from corrosion. Concrete structures are exposed to various environmental factors, such as moisture, chemicals, and salts, which can cause corrosion of the reinforcing steel. However, as steel rebars are typically coated or protected with anti-corrosive materials, they act as a barrier against corrosion, ensuring the long-term durability and integrity of the structure. Furthermore, steel rebars contribute to preventing structural failures by providing stability during construction. They are strategically placed within the concrete forms at critical points and areas susceptible to high stress. This ensures that the structure remains stable and can withstand the loads and forces exerted during and after construction. In conclusion, the role of steel rebars in preventing structural failures is multifaceted. They enhance the tensile strength of concrete, increase structural stability, prevent corrosion, and provide stability during construction. By reinforcing concrete, steel rebars significantly contribute to the overall strength, durability, and safety of structures, ultimately averting structural failures and ensuring the longevity of the built environment.
- Q:What are the guidelines for ensuring proper concrete cover over steel rebars?
- To ensure the long-term durability and performance of reinforced concrete structures, it is crucial to have the appropriate concrete cover over steel rebars. Here are some tips to achieve the correct cover: 1. Compliance with building codes and specifications is essential. These regulations establish minimum requirements for concrete cover over steel rebars to ensure structural integrity, fire resistance, and corrosion resistance. It is important to consult and adhere to the applicable codes and specifications for your project. 2. Determine the required concrete cover based on factors such as environmental conditions, exposure to aggressive agents, structural design, and reinforcement type. Structural engineers typically assess these factors to determine the necessary cover and protect the rebars adequately. 3. Carefully select the concrete mix design to achieve the desired strength, durability, and workability. Consider factors like the quality and size of aggregates, cement content, water-to-cement ratio, and use of additives or admixtures. A well-designed mix will promote proper bonding and sufficient protection of the rebars. 4. Maintain proper construction practices. This includes using appropriate formwork and reinforcement placement techniques, ensuring correct concrete placement, compaction, and curing. Proper positioning and secure tying of the rebars are crucial to maintain the required cover and prevent displacement during concrete pouring. 5. Regular inspections and monitoring during construction are necessary. Check the placement of reinforcement, cover thickness, and overall concrete quality. Address and rectify any deviations from the specified requirements promptly. 6. Protect against corrosion. Adequate concrete cover helps prevent corrosion, but additional measures can enhance durability. Consider using corrosion-resistant rebars, applying epoxy coatings, or utilizing corrosion inhibitors to further protect the reinforced concrete structure. 7. Document and maintain records of the construction process, including reinforcement placement, cover thickness, and any modifications made. This documentation will be useful for future reference, maintenance, and repairs. By following these guidelines, you can ensure the appropriate concrete cover over steel rebars, resulting in durable and structurally sound reinforced concrete structures. It is always advisable to consult with structural engineers and construction professionals to meet specific project requirements and comply with local building codes and regulations.
- Q:How are steel rebars tested for quality and compliance?
- Steel rebars are tested for quality and compliance through a series of rigorous methods. These include visual inspection to check for any physical defects, such as surface imperfections or cracks. Additionally, rebars undergo chemical analysis to ensure they meet the required composition and strength specifications. Mechanical testing is conducted to assess the rebars' tensile strength, yield strength, and elongation properties. Another crucial test is the bend test, which evaluates rebars' ability to withstand bending without breaking or cracking. Overall, these various tests help ensure that steel rebars meet the necessary quality and compliance standards for their intended applications.
- Q:What is the purpose of ribbing on a steel rebar?
- The purpose of ribbing on a steel rebar is to enhance the bond strength between the rebar and the concrete. The ribs on the surface of the rebar provide a larger surface area for the concrete to adhere to, increasing the overall strength and stability of the reinforced concrete structure.
- Q:How do steel rebars affect the seismic performance of a structure?
- The seismic performance of a structure is significantly impacted by steel rebars. Steel rebars have the primary function of reinforcing concrete and increasing its strength and ductility. This reinforcement is essential in reducing the damaging effects of seismic activity. When an earthquake occurs, a structure is subjected to different forces, such as lateral forces, shear forces, and bending moments. These forces can cause deformation, cracking, or even collapse of the structure. However, steel rebars provide resistance against these forces and help maintain the integrity of the structure. By increasing the tensile strength of concrete, steel rebars enhance its ability to withstand the lateral movement caused by seismic waves. This allows for a more even distribution of forces, minimizing the formation and propagation of cracks and reducing the risk of structural failure. Additionally, steel rebars improve the ductility of the structure. Ductility refers to a material's ability to deform without breaking. During an earthquake, the shaking of the ground can cause the structure to deform and oscillate. Steel rebars enable the structure to absorb and dissipate energy, decreasing the chances of sudden failure. This ductile behavior is particularly important in areas prone to earthquakes as it provides warning signs of potential structural distress, allowing occupants to evacuate safely. Moreover, steel rebars can be strategically placed in critical areas of the structure, such as the beam-column joints, which are highly vulnerable during seismic events. Proper detailing and configuration of rebars in these areas can greatly enhance seismic performance by strengthening connections and preventing premature failure. In conclusion, steel rebars play a critical role in improving the seismic performance of a structure. They enhance the tensile strength of concrete, improve ductility, reduce crack formation, and strengthen critical areas. These factors collectively contribute to a more resilient structure that can better withstand and absorb the forces generated during an earthquake, ultimately ensuring the safety and stability of the building and its occupants.
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Deformed Steel Bar ASTM A615 GR40 GR60 Or BS 4449
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT or LC
- Min Order Qty:
- -
- Supply Capability:
- -
OKorder Service Pledge
OKorder Financial Service
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