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Steel Rebars,Deformed Steel Bars,Building Material China Manufacturer

Steel Rebars,Deformed Steel Bars,Building Material China Manufacturer

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Loading Port:
Tianjin
Payment Terms:
TT or LC
Min Order Qty:
50 m.t.
Supply Capability:
20000 m.t./month

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Product Description:

OKorder is offering Steel Rebars,Deformed Steel Bars,Building Material China Manufacturer 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:

Steel Rebars,Deformed Steel Bars,Building Material China Manufacturer 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 Rebars,Deformed Steel Bars,Building Material China Manufacturer 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: HRB335

Certificates: ISO, SGS, BV, CIQ

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

Packing details Steel:Steel rebar packed in bundle or as your requirement

Delivery:Within 30 days after deposit

Diameter:10mm-40mm

Place of Origin:Fujian, China (Mainland)

Model Number:QZMM-ST001

Application:Building material, construction, road, bridge,etc

Product Name:Steel Rebars,Deformed Steel Bars,Building Material China Manufacturer

Standard:ASTM A615 /BS BS 4449 /GB HRB/ JIS G3112

Material:HRB335

Shape:Straight reinforcing bars

Technique:Low temperature hot-rolling reinforcing deformed steel rebar

Tolerance:As the standard or as your requirement

MOQ:100tons per size steel rebar

Packing details Steel:Steel rebar packed in bundle or as your requirement

Delivery:Within 30 days after deposit

Post:XIAMEN,CHINA

 

 

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.

 

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Steel Rebars,Deformed Steel Bars,Building Material China Manufacturer

Steel Rebars,Deformed Steel Bars,Building Material China Manufacturer

Q:Can steel rebars be used in combination with other reinforcement materials?
Combining steel rebars with other reinforcement materials is a common practice in construction projects. Steel rebars provide tensile strength and improve overall structural integrity in reinforced concrete structures. However, additional reinforcement materials may be needed in certain cases to meet design requirements or overcome unique construction challenges. For example, in areas with high seismic activity, it is important to prioritize flexibility and ductility. In these situations, steel rebars can be combined with materials like fiber-reinforced polymer (FRP) bars or carbon fiber-reinforced polymer (CFRP) strips. These materials offer increased strength and flexibility, enhancing the structure's ability to withstand seismic forces. Furthermore, when corrosion is a concern, steel rebars can be used alongside corrosion-resistant materials such as stainless steel rebars or epoxy-coated rebars. These materials form a protective barrier, preventing direct contact between the steel rebars and moisture or corrosive agents. Moreover, in specialized applications like precast concrete elements or composite structures, steel rebars can be used in conjunction with other reinforcement materials like prestressed tendons or structural fibers. This combination allows for load redistribution and ensures optimal structural performance. In conclusion, combining steel rebars with other reinforcement materials is an effective way to meet specific construction requirements, improve structural performance, and address challenges related to seismic activity, corrosion, or specialized applications.
Q:How do steel rebars affect the overall load-bearing capacity of a structure?
The load-bearing capacity of a structure is greatly enhanced by steel rebars. These reinforcing bars are commonly added to concrete structures, such as beams, columns, and slabs, to add strength and durability. The main purpose of rebars is to resist tensile forces, which concrete alone cannot effectively handle. By embedding steel rebars in the concrete, the structure's overall load-bearing capacity significantly increases. When the structure is subjected to a load, the rebars evenly distribute the forces, preventing cracks and reducing the risk of structural failure. This reinforcement improves the structure's ability to withstand heavy loads, including the weight of the building, furniture, occupants, and external forces like wind and earthquakes. Additionally, rebars help control and limit the spread of cracks within the concrete. Concrete is strong in compression but weak in tension, so without rebars, it would easily crack under tensile stress. The rebars act as a reinforcement, absorbing some of the tensile forces and preventing the cracks from expanding, thus maintaining the overall strength of the structure. Furthermore, steel rebars enhance the ductility of the structure. Ductility refers to a material's ability to deform without breaking. When a structure experiences excessive loads or external factors cause deformation, the rebars absorb and dissipate the energy, allowing the structure to deform in a controlled manner instead of collapsing suddenly. To sum up, steel rebars significantly improve the load-bearing capacity of a structure by providing tensile strength, preventing crack propagation, and enhancing ductility. By reinforcing the concrete, rebars ensure that the structure can withstand heavy loads, increasing its strength, durability, and overall safety.
Q:What are the international standards for steel rebars?
Various organizations and bodies, such as the International Organization for Standardization (ISO), the American Society for Testing and Materials (ASTM), and the European Committee for Standardization (CEN), set the international standards for steel rebars. ISO establishes standards for steel rebars through ISO 15630, which covers both hot-rolled and cold-worked rebars. This standard outlines the requirements for the chemical composition, mechanical properties, dimensions, and tolerances of rebars used in reinforced concrete structures. ASTM has developed multiple standards for steel rebars, such as ASTM A615/A615M and ASTM A706/A706M. ASTM A615/A615M focuses on deformed and plain carbon-steel rebars for concrete reinforcement, specifying the chemical composition, mechanical properties, dimensions, and marking requirements. On the other hand, ASTM A706/A706M concentrates on low-alloy steel rebars with improved weldability, suitable for concrete structures that require welding. In Europe, CEN has established the primary standard for steel rebars as the Eurocode 2 (EN 1992-1-1). This code provides design rules for the structural use of concrete and includes guidelines for the selection and utilization of rebars. Additionally, CEN has also developed EN 10080, which specifies the requirements for steel rebars used in concrete reinforcement, covering chemical composition, mechanical properties, dimensions, and tolerances. These international standards guarantee the quality and consistency of steel rebars utilized in construction projects worldwide. Complying with these standards helps ensure the safety and reliability of reinforced concrete structures by providing guidelines for material properties, manufacturing processes, and quality control measures.
Q:Can steel rebars be used in structures with extreme temperature variations?
Structures that experience extreme temperature variations can generally utilize steel rebars. Steel possesses exceptional durability and strength due to its high melting point, making it suitable for various construction applications. However, there are several factors to consider when employing steel rebars in such structures. To begin with, steel exhibits thermal expansion, meaning it expands and contracts as temperatures fluctuate. If not properly addressed, this expansion and contraction can potentially stress and strain the structure. Engineers and architects counteract this issue by implementing design techniques such as incorporating expansion joints or allowing for thermal movement. These measures accommodate the steel's thermal expansion and prevent damage. Additionally, extreme temperature variations can impact the mechanical properties of steel. Exposure to high temperatures can cause steel to lose its strength and stiffness, compromising the structural integrity. Conversely, low temperatures can make the steel brittle, increasing the likelihood of cracks or fractures. Therefore, it is crucial to select steel rebars of the appropriate grade and quality, specifically designed to withstand the expected temperature variations. Furthermore, the type and purpose of the structure should be taken into consideration. For example, in structures where extreme temperature variations are anticipated, such as bridges or buildings in regions with hot summers and cold winters, thermal insulation or other measures should be incorporated into the design. These measures prevent excessive heat transfer or the accumulation of thermal stress. In conclusion, steel rebars can be employed in structures experiencing extreme temperature variations, but careful considerations must be made. By accounting for thermal expansion, selecting suitable steel grades, and incorporating design techniques to accommodate temperature changes, the structural integrity and performance can be maintained. This ensures the safety and longevity of the construction.
Q:What are the different methods for reinforcing concrete with steel rebars?
There are several methods for reinforcing concrete with steel rebars, each serving a specific purpose and providing different levels of strength and durability. 1. Traditional Reinforcement: This method involves placing steel rebars horizontally and vertically within the concrete structure. The rebars are typically arranged in a grid pattern and tied together at intersections using wire or metal ties. This method is commonly used for general reinforcement in slabs, walls, and columns. 2. Pre-stressed Reinforcement: In this method, steel rebars are pre-tensioned before they are embedded in the concrete. This is done by stretching the rebars using hydraulic jacks and anchoring them to the structure's foundation. The tension in the rebars helps counteract the tensile forces that occur when the concrete is subjected to loads, resulting in increased strength and resistance to cracking. 3. Post-tensioned Reinforcement: Similar to pre-stressed reinforcement, post-tensioning involves the use of steel rebars that are tensioned after the concrete has hardened. This is achieved by placing ducts or sleeves within the concrete before pouring, and then threading the rebars through them. Once the concrete has cured, the rebars are tensioned using hydraulic jacks, applying a compressive force that enhances the overall strength and load-bearing capacity of the structure. 4. Fiber Reinforced Concrete: Instead of traditional steel rebars, fibers made of steel, glass, synthetic materials, or natural fibers can be added to the concrete mix. These fibers act as a secondary reinforcement system, providing additional strength and durability to the concrete. Fiber reinforced concrete is commonly used in applications such as industrial floors, bridge decks, and pavements. 5. Shotcrete Reinforcement: Shotcrete is a method where a wet mix of concrete and steel fibers is sprayed onto a surface using a high-pressure hose. This technique is commonly used in slope stabilization, tunnel linings, and underground constructions. The steel fibers in the shotcrete provide reinforcement and improve the overall structural integrity of the sprayed concrete. Overall, the choice of reinforcement method depends on the specific requirements of the project, including the type of structure, expected loads, and desired durability. By selecting the appropriate method, engineers can ensure that the reinforced concrete structure possesses the necessary strength and resilience to withstand the intended usage and environmental conditions.
Q:How do steel rebars affect the aesthetics of a construction project?
Steel rebars can impact the aesthetics of a construction project by being visible in areas such as exposed concrete surfaces or through transparent materials like glass. Their presence can create a more industrial or utilitarian look, which may be desirable in certain architectural styles. However, if not properly concealed or incorporated into the design, steel rebars can also be seen as unsightly or disruptive to the overall aesthetic appeal of the project.
Q:What are the common grades of steel rebars?
Steel rebars are commonly classified based on their yield strength, which measures the force needed to deform or bend the steel. The most frequently seen grades of steel rebars are Grade 40, Grade 60, and Grade 75. Grade 40 steel rebars possess a minimum yield strength of 40,000 pounds per square inch (psi) and are often utilized in general construction projects that require moderate strength. Grade 60 steel rebars have a minimum yield strength of 60,000 psi and are extensively employed in reinforced concrete structures like bridges, buildings, and highways. They exhibit superior strength and durability compared to Grade 40 rebars, making them suitable for heavy-duty applications. Grade 75 steel rebars have a minimum yield strength of 75,000 psi and are commonly used in high-rise buildings, dams, and other structures that demand exceptional strength and load-bearing capacity. These rebars provide the highest level of strength and are specifically designed for structures exposed to extreme conditions or heavy loads. It should be noted that the selection of the appropriate grade of steel rebars for a specific project is determined by structural engineers, considering factors such as expected loads, environmental conditions, and design specifications.
Q:What are the different methods of fixing steel rebars in formwork?
There are several methods for fixing steel rebars in formwork, including using wire ties, mechanical splices, couplers, and welding. Wire ties involve twisting a wire around the rebar intersections to hold them together. Mechanical splices are pre-manufactured devices that join rebars together, providing a strong connection. Couplers are similar to mechanical splices but are typically used for larger diameter rebars. Welding involves fusing the rebars together using heat, creating a permanent bond. Each method has its own advantages and considerations depending on the project requirements and rebar sizes.
Q:What are the common mistakes to avoid when handling and storing steel rebars?
Some common mistakes to avoid when handling and storing steel rebars include: 1. Improper handling: Rebars should be lifted and moved using appropriate equipment such as cranes or forklifts. Attempting to handle them manually can lead to injuries and damage to the rebars. 2. Inadequate storage conditions: Rebars should be stored in a clean, dry, and well-ventilated area to prevent rusting and corrosion. Exposure to moisture or extreme temperatures can degrade the quality of the rebars. 3. Insufficient support: When storing rebars horizontally, they should be placed on a flat surface and adequately supported to prevent bending or deformation. Stacking them too high without proper support can result in damage and compromise their structural integrity. 4. Inadequate protection: Rebars should be protected from direct contact with the ground or other materials that may cause damage or contamination. Using pallets or other protective barriers can help prevent rust and ensure the rebars remain in good condition. 5. Neglecting regular inspections: Regularly inspecting the rebars for signs of damage, rust, or other defects is crucial. Any compromised rebars should be removed from use to ensure safety and structural reliability. By avoiding these common mistakes, the handling and storage of steel rebars can be done effectively, ensuring their quality and performance in construction projects.
Q:Can steel rebars be used in structures with high vibrations?
Yes, steel rebars can be used in structures with high vibrations. Steel rebars are commonly used in construction due to their high tensile strength and ability to withstand various forces, including vibrations. However, it is important to consider the specific requirements and design parameters of the structure to ensure that the rebars are properly anchored and reinforced to withstand the anticipated vibrations.

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