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:How do steel rebars contribute to the overall aesthetics of a building?
- Steel rebars do not directly contribute to the overall aesthetics of a building as they are typically hidden within the concrete structure. However, their presence is crucial for providing structural integrity and strength, ensuring the building's safety and durability.
- Q:What are the advantages of using epoxy-coated steel rebars?
- Using epoxy-coated steel rebars in construction projects has several advantages. Firstly, the epoxy coating provides excellent corrosion resistance, protecting the rebars from moisture, oxygen, and other environmental elements. This extends their lifespan and enhances the durability of the structure. Secondly, epoxy-coated steel rebars offer improved bonding strength due to their rough surface. This enhances the adhesive properties between the rebar and the concrete, resulting in better load transfer and strengthening the structure. It also reduces cracking and improves the overall structural integrity. Another advantage is their ability to resist chemical attack. The epoxy coating acts as a barrier, preventing direct contact between the steel and chemicals in environments like wastewater treatment plants or industrial facilities. This helps maintain the structural integrity over time. Additionally, epoxy-coated steel rebars are easier to handle and install. The smoothness of the coating reduces friction, making it easier to position and place the rebars accurately. This simplifies the construction process, increases productivity, and reduces labor costs. Lastly, epoxy-coated steel rebars offer aesthetic benefits. The coating can be customized to different colors, allowing for better visual integration with architectural designs. This is particularly useful in projects where the rebars are visible, such as bridges or artistic structures. In conclusion, using epoxy-coated steel rebars provides corrosion resistance, improved bonding strength, chemical resistance, easier handling and installation, and aesthetic benefits. This leads to enhanced durability, reduced maintenance costs, and improved structural performance in construction projects.
- Q:Can steel rebars be used in historical building preservation?
- Yes, steel rebars can be used in historical building preservation. They are commonly used to strengthen and reinforce existing structures, ensuring their structural integrity. Steel rebars provide additional support and stability to historical buildings without compromising their original architectural integrity.
- Q:How are steel rebars inspected for quality control?
- Steel rebars are inspected for quality control through several methods. Visual inspections are conducted to check for any visible defects such as cracks, surface irregularities, or improper dimensions. Non-destructive testing techniques like ultrasonic testing and magnetic particle inspection are used to detect internal flaws or discontinuities. Rebars are also subjected to destructive testing, including tensile and bend tests, to assess their mechanical properties and ensure they meet the required standards. Additionally, chemical composition analysis is performed to verify the steel's composition and adherence to specifications.
- Q:What are the factors that can cause corrosion in steel rebars?
- The corrosion of steel rebars can be influenced by several factors. Firstly, the exposure to moisture and oxygen is a significant contributor to the corrosion process. When the steel rebar's surface comes into contact with moisture, it triggers an electrochemical reaction with the oxygen in the air, resulting in the formation of rust. This reaction is sped up in environments with high humidity or continuous water exposure, like coastal areas or submerged structures. Another factor that can cause corrosion is the presence of chloride ions. These can be found in seawater, deicing salts, or industrial environments, and they can penetrate the protective oxide layer on the steel rebar, making it more susceptible to corrosion. Once the chloride ions reach the metal surface, they break down the passive film, which allows the corrosion process to happen more quickly. The pH level of the environment is also crucial. Steel rebars are more prone to corrosion in highly acidic or alkaline conditions. Acidic environments, such as those in industrial areas with high air pollution or chemical exposure, can corrode the steel rapidly. Conversely, alkaline conditions, often found in concrete structures due to the presence of cement, can create a highly alkaline environment on the rebar's surface, leading to the breakdown of the protective oxide layer and promoting corrosion. Additionally, the presence of other impurities or contaminants can accelerate the corrosion process. For example, sulfur compounds can react with the steel rebar, forming sulfide corrosion products that weaken the structure. Similarly, exposure to certain organic compounds or acids can also contribute to corrosion. Lastly, the design and maintenance of structures can also play a role in the corrosion of steel rebars. Inadequate concrete cover or poor quality concrete can make it easier for moisture and oxygen to reach the steel, increasing the chances of corrosion. Lack of proper maintenance, such as neglecting to repair cracked or damaged concrete, can also lead to water infiltration and subsequent corrosion of the rebars. In conclusion, factors like moisture and oxygen exposure, chloride ions, pH level, presence of contaminants, and insufficient design or maintenance can all contribute to the corrosion of steel rebars. It is vital to understand and address these factors to ensure the longevity and durability of structures that incorporate steel rebars.
- Q:Are steel rebars recyclable?
- Yes, steel rebars are recyclable. Steel is a highly recyclable material, and steel rebars can be easily melted down and reprocessed to be used in the production of new steel products. Recycling steel rebars not only helps conserve natural resources but also reduces the environmental impact associated with the extraction and manufacturing of new steel.
- Q:How do steel rebars impact the overall cost of a construction project?
- The overall cost of a construction project can be greatly influenced by steel rebars. To begin with, the price of steel rebars themselves can be quite substantial, especially if large quantities are needed. Various factors such as market demand, availability, and fluctuations in raw material prices can affect the prices of steel rebars. Additionally, the installation of steel rebars incurs extra expenses, including labor, tools, and equipment. Skilled workers are necessary to accurately position the rebars according to the construction plans, which can raise labor costs. Moreover, specialized tools and equipment are required to cut, bend, and tie the rebars, increasing the project's expenses. The use of steel rebars also impacts the construction timeline, which in turn affects the project's cost. Construction projects often have strict deadlines, and any delays in the delivery or installation of rebars can result in additional expenses due to increased labor costs, idle equipment, and potential penalties for late completion. Furthermore, steel rebars play a vital role in providing structural strength and durability to the building. By reinforcing concrete structures, steel rebars enhance their ability to bear loads and resist forces such as earthquakes and extreme weather conditions. This reduces the risk of structural failures and the need for expensive repairs or replacements in the future. In conclusion, steel rebars have a significant impact on the overall cost of a construction project due to their purchase cost, installation expenses, effect on the construction timeline, and long-term benefits in terms of structural integrity and durability. Proper planning, procurement, and installation of steel rebars are crucial for effectively managing costs and ensuring the successful completion of the project within the allocated budget.
- Q:What is the role of steel rebars in minimizing the risk of progressive collapse?
- The risk of progressive collapse in structures can be significantly reduced by the use of steel rebars. Progressive collapse occurs when a primary structural element fails, causing adjacent elements to also fail and resulting in the collapse of the entire structure. In this context, steel rebars have a primary function of improving structural integrity and adding strength to load-bearing elements like columns, beams, and slabs. By reinforcing these elements with steel rebars, the structure becomes more resistant to sudden and catastrophic failures. Typically, steel rebars are embedded within the concrete, creating a composite structure known as reinforced concrete. These rebars serve as reinforcements against the concrete's weakness in tension. When subjected to loads, the rebars bear the tension forces while the concrete handles compression forces. This combination results in a more balanced distribution of the load and prevents localized failures. Steel rebars are especially important in preventing progressive collapse during unexpected failures or extreme events, such as explosions or impacts. They provide additional ductility and redundancy to the structure, ensuring that if one element fails, the load can be distributed to surrounding elements and preventing a domino effect of failure. Beyond preventing progressive collapse, steel rebars also contribute to the overall stability of a structure by increasing its load-carrying capacity. By reinforcing structural elements, they allow for larger spans and higher design loads, reducing the risk of overloading and potential failure. To maintain the effectiveness of steel rebars in minimizing the risk of progressive collapse, regular inspections and maintenance are necessary. These inspections involve checking for corrosion, ensuring proper placement, and providing adequate cover for the rebars to protect them from environmental factors that could compromise their integrity. In conclusion, the use of steel rebars is vital in minimizing the risk of progressive collapse. They reinforce critical load-bearing elements, enhance structural integrity, and provide redundancy. Steel rebars enable structures to withstand unexpected failures and extreme events, ensuring the safety and stability of buildings and infrastructure.
- Q:How do steel rebars affect the overall cost of maintenance?
- Steel rebars can significantly impact the overall cost of maintenance. By utilizing high-quality steel rebars in construction projects, the durability and strength of structures are enhanced, leading to reduced maintenance needs in the long run. The use of corrosion-resistant rebars can also prevent deterioration caused by environmental factors, lowering maintenance expenses. Conversely, using low-quality or substandard rebars may result in structural issues and increased maintenance costs over time.
- Q:What is the carbon content of thread steel?
- It is understood that carbon is the main element determining the performance of steel, because changes in carbon content directly lead to changes in crystal structure. With the increase of carbon content, the strength and hardness of the threaded steel increase, while the plasticity and toughness decrease. When the carbon content is more than 1%, the strength of the rebar decreases. The increase of carbon content also reduces the weldability and corrosion resistance of steel, and increases the cold brittleness and aging tendency of steel.
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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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