• Steel Deformed Rebars ASTM GR40 System 1
  • Steel Deformed Rebars ASTM GR40 System 2
  • Steel Deformed Rebars ASTM GR40 System 3
Steel Deformed Rebars ASTM GR40

Steel Deformed Rebars ASTM GR40

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Product Description:

 

OKorder is offering Steel Deformed Rebars ASTM GR40 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 African, South American and Asian markets. We provide quotations within 24 hours of receiving an inquiry and guarantee competitive prices.

 

Product Applications:

Steel Deformed Rebars ASTM GR40 are ideal for structural applications and are widely used in the construction of buildings and bridges, and the manufacturing, petrochemical, and transportation industries.

 

Product Advantages:

OKorder's Steel Deformed Rebars ASTM GR40 are durable, strong, and wide variety of sizes.

 

Main Product Features:

·         Premium quality

·         Prompt delivery & seaworthy packing (30 days after receiving deposit)

·         Can be recycled and reused

·         Mill test certification

·         Professional Service

·         Competitive pricing

 

Product Specifications:

Manufacture: Hot rolled

Grade: ASTM GR40,GR60

Size: 6mm-32mm

Certificates: ISO, SGS, BV, CIQ

Length: 6m – 12m, as per customer request

Packaging: Export packing, nude packing, bundled

DEFORMED BAR
SIZE
d(mm)
theoretical
kg/m
60.222
80.395
100.617
120.888
141.21
161.58
182
202.47
222.98
253.85
284.83
326.31

 

FAQ:

Q1: How soon can we receive the product after purchase?

A1: Within three days of placing an order, we will arrange production. The normal sizes with the normal grade can be produced within one month. The specific shipping date is dependent upon international and government factors, the delivery to international main port about 45-60days.

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 difference between actual weight and theoretical weight?

A3: All the section steel has two weights: actual weight and theoretical weight. Actual weight is the weighing out when the product delivered from the mill. Theoretical weight is calculated by pieces.  The invoice can be based on each of them as your request.

 

Images:

Q:What is the standard length of steel rebars?
The standard length of steel rebars varies depending on the region and the specific requirements of the project. In the United States, for example, the standard length of steel rebars is commonly 20 feet or 6.1 meters. However, it is important to note that rebars can be cut and customized to different lengths as needed for a particular construction project. Additionally, in some countries or regions, rebars may be available in different standard lengths based on local construction practices and regulations. Therefore, it is essential to consult local codes and specifications to determine the standard length of steel rebars for a specific project.
Q:What is the effect of steel rebars on the formwork design?
The presence of steel rebars in formwork design provides structural reinforcement and improves the overall strength and durability of the structure. The rebars help distribute the load and forces more effectively, allowing for the creation of thinner and lighter formwork designs. Additionally, steel rebars can be used to reinforce specific areas or joints where additional strength is required. Overall, incorporating steel rebars in formwork design enhances the structural integrity and longevity of the construction project.
Q:Can steel rebars be used in railway and transportation infrastructure?
Railway and transportation infrastructure can utilize steel rebars, also known as reinforcing bars, to provide strength and support to concrete structures. These rebars are widely used in the construction industry to reinforce elements such as bridge piers, abutments, and retaining walls. The inclusion of steel rebars in railway and transportation infrastructure offers numerous benefits. Firstly, they increase the tensile strength of concrete, making structures more resistant to the dynamic and heavy loads imposed by trains and vehicles, particularly in bridges and elevated structures. Secondly, steel rebars ensure structural integrity and prevent the development of cracks and deformations in the concrete. This is vital for the long-term stability and safety of the infrastructure, considering the constant exposure to varying environmental conditions like temperature fluctuations and vibrations. Moreover, steel rebars exhibit high durability and corrosion resistance, which is crucial for railway and transportation infrastructure subjected to harsh weather conditions and chemical agents. Their ability to withstand these factors guarantees the longevity of the structures and minimizes the need for frequent repairs and maintenance. In conclusion, due to their ability to enhance the strength, durability, and stability of concrete structures, steel rebars are widely used in railway and transportation infrastructure. Their incorporation ensures the safe and reliable operation of these essential transportation systems, providing a solid foundation for the efficient movement of people and goods.
Q:What is the effect of corrosion on the strength of steel rebars?
Corrosion has a detrimental effect on the strength of steel rebars. As corrosion occurs, it causes the steel rebar to rust and deteriorate, leading to a loss of structural integrity. This can significantly weaken the rebars, compromising their ability to support loads and increasing the risk of structural failure. Regular inspection and maintenance are crucial to prevent corrosion and maintain the strength of steel rebars.
Q:How do steel rebars resist shear forces in concrete structures?
Shear forces in concrete structures are counteracted and reinforced by steel rebars. These rebars play a crucial role in enhancing the concrete's strength and stability. They are strategically placed in areas where high shear forces are expected, such as beams, columns, and slabs. By forming a crisscross pattern, the rebars create a grid-like structure within the concrete. When shear forces act on the concrete, the rebars resist cracking and separation by transferring the load across the cracks. Acting as tension reinforcement, the rebars provide extra strength, preventing the concrete from failing. Additionally, they distribute the shear forces evenly, reducing stress concentration and increasing the overall structural integrity. The bond between the steel rebars and the concrete is vital for their effective resistance against shear forces. The rebars are designed with ridges or deformations on their surface to improve the bond strength. This bond ensures that the rebars and the concrete work together as a unified unit, facilitating the transfer of shear forces from the concrete to the rebars. To summarize, steel rebars reinforce concrete structures by strengthening and distributing shear forces more effectively. They prevent cracking and failure, enhance the structural integrity, and ensure overall stability.
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 affect the cost of a construction project?
Several factors come into play when considering how steel rebars can affect the cost of a construction project. To start, reinforced concrete structures often rely on steel rebars for strength and stability. The specific quantity and quality of rebars necessary for a project depend on factors like the structure's size, design, and intended use. The cost of steel rebars is a significant factor to consider. Fluctuations in market conditions, availability, and demand can cause the price of steel rebars to vary, which can have a substantial impact on the overall project cost. Additionally, the grade and quality of rebars can also differ, with higher grades typically being more expensive. Moreover, the quantity of rebars needed directly influences the cost. Large-scale projects that require a significant amount of rebars, such as high-rise buildings or infrastructure projects, can incur considerable expenses related to rebars. The cost is influenced by factors like the structure's size, complexity, and the engineering and design requirements. Labor costs associated with handling, cutting, bending, and placing rebars are another critical consideration. Skilled labor is necessary to ensure proper installation, correct positioning, and securement of rebars. The more complex the structure or design, the more labor-intensive and time-consuming the rebar installation becomes, resulting in higher labor costs. In addition, the use of rebars can impact project scheduling and timelines. Additional time may be required for procuring, delivering, and installing rebars, potentially leading to delays in the overall construction schedule. Any delays can result in increased project costs due to extended labor and overhead expenses. Lastly, it is crucial to consider the long-term cost implications of using rebars. Steel rebars provide durability and strength to concrete structures, which can lead to reduced maintenance and repair costs over the project's lifespan. Investing in high-quality rebars from the start can save money in the long run by minimizing the need for future repairs or replacements. In conclusion, the use of steel rebars has a significant impact on the cost of a construction project. The cost of rebars themselves, the quantity required, labor expenses, project scheduling, and long-term durability considerations all contribute to the overall impact on project cost. Construction professionals must carefully analyze and plan for these factors to ensure accurate cost estimations and successful project execution.
Q:What are the different types of steel rebars available for different applications?
For various applications, there is a wide range of steel rebars available. Some of the commonly used types are as follows: 1. Mild Steel Rebars: These rebars are frequently utilized in construction projects and have a low carbon content, making them cost-effective. They are suitable for general construction purposes and find application in residential buildings, bridges, and small to medium-sized structures. 2. High-strength Reinforcement Bars (HSRB): These rebars possess a higher tensile strength compared to mild steel rebars. They are commonly employed in high-rise buildings, large infrastructure projects, and heavy-duty structures that require greater strength. HSRB rebars are often manufactured using alloys like carbon, manganese, or silicon to enhance their strength. 3. Epoxy-Coated Rebars: To protect against corrosion, these rebars are coated with epoxy resin. Epoxy-coated rebars are commonly used in marine structures, parking garages, and areas with high humidity or exposure to moisture. The epoxy coating acts as a barrier, preventing the steel from coming into contact with corrosive elements, thereby extending the rebar's lifespan. 4. Stainless Steel Rebars: In contrast to mild steel rebars, stainless steel rebars contain a substantial amount of chromium, providing excellent resistance to corrosion. These rebars are often employed in highly corrosive environments such as coastal areas, chemical plants, and wastewater treatment facilities. Stainless steel rebars are also preferred in structures that require high aesthetic appeal, such as architectural buildings and monuments. 5. Galvanized Rebars: Zinc coating is applied to galvanized rebars to safeguard them against corrosion. The zinc coating acts as a sacrificial layer, corroding itself before the underlying steel is affected. These rebars are commonly used in areas with moderate corrosion risks, such as concrete structures exposed to deicing salts or in coastal regions. 6. Carbon Fiber Reinforced Polymer (CFRP) Rebars: CFRP rebars consist of carbon fibers embedded in a polymer matrix. They are lightweight, corrosion-resistant, and possess high tensile strength. CFRP rebars are frequently used in retrofitting existing structures, as they provide excellent strength and durability without adding significant weight. The selection of the appropriate steel rebar depends on the specific application, environmental conditions, and structural requirements. It is crucial to consult structural engineers and adhere to local building codes and standards to ensure the correct type of rebar is chosen for each project.
Q:Can steel rebars be used in cold weather conditions?
Cold weather conditions allow for the use of steel rebars. Steel is renowned for its durability and strength, rendering it a viable material for construction endeavors in frigid climates. Nevertheless, when employing steel rebars in cold weather, it is imperative to exercise certain precautions. For instance, it is vital to ensure that the rebars are stored and shielded adequately to prevent corrosion caused by moisture. Moreover, the concrete mixture utilized in conjunction with the rebars must be modified to withstand freezing temperatures and avert cracking. Ultimately, with meticulous planning and adherence to precautions, steel rebars can be employed effectively in cold weather conditions.
Q:What is the role of steel rebars in preventing cracks in concrete structures?
The role of steel rebars in preventing cracks in concrete structures is to provide reinforcement and increase the structural integrity of the concrete. By adding steel rebars, the concrete is better able to resist tensile forces that can cause cracking. The rebars act as a skeleton, distributing and absorbing the stresses placed on the concrete, thereby minimizing the formation of cracks and enhancing the overall durability of the structure.

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