Hot Rolled Deformed Steel Bar HRB400
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Product Description:
OKorder is offeringDeformed Steel Bar 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 Deformed Steel Bar 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:
Chemical Composition: (Please kindly find our chemistry of our material based on HRB400 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 | |||||
FAQ:
Q1: Why buy Materials & Equipment from OKorder.com?
A1: All products offered byOKorder.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: 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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- Q: Can steel rebars be used in cold weather concreting?
- Yes, steel rebars can be used in cold weather concreting. However, it is important to take necessary precautions and follow guidelines to ensure the rebars remain free from corrosion in low temperatures. Additionally, using proper construction techniques and allowing sufficient time for curing can help prevent any negative effects on the concrete due to cold weather conditions.
- Q: What is the effect of welding defects on the performance of steel rebars?
- Welding defects in steel rebars can have significant negative effects on their performance. These defects, such as porosity, cracks, and inadequate fusion, weaken the structural integrity of the rebars, making them prone to failure under stress or load. The presence of welding defects compromises the rebars' ability to withstand bending, tension, and compression forces, thereby reducing their overall strength and durability. This can lead to structural failures, increased maintenance costs, and potential safety hazards in construction projects. Therefore, it is crucial to ensure proper welding techniques and inspections to minimize welding defects and maintain the desired performance of steel rebars.
- Q: How are steel rebars used in the construction of power transmission towers?
- To reinforce and strengthen power transmission towers, steel rebars are commonly utilized in their construction. These rebars, typically crafted from high-strength steel, find application in various tower components such as the foundation, columns, and cross arms. To bolster the load-bearing capacity of the foundation, steel rebars are embedded in concrete. By distributing the weight of the tower and transmission lines, these rebars maintain the stability of the foundation and enable it to endure the exerted forces. Within the tower columns, steel rebars are employed to fortify the concrete structure, enhancing its strength and stability. Given that power transmission towers are often exposed to strong winds, seismic activities, and other external forces, the presence of rebars prevents the concrete from experiencing cracks or collapses. This ensures the tower's integrity and longevity. Additionally, steel rebars are utilized in the construction of cross arms, which provide horizontal support to the transmission lines. By reinforcing the cross arms, these rebars enable them to effectively bear the weight of the lines. This is particularly crucial since power transmission lines can span long distances and carry significant loads. To summarize, the utilization of steel rebars is crucial in the construction of power transmission towers as they provide the necessary strength and reinforcement to ensure the tower's stability and durability. The absence of these rebars would render the towers more vulnerable to structural failures, posing risks to the transmission lines and surrounding areas.
- Q: What is the average lifespan of steel rebars in a concrete structure?
- The average lifespan of steel rebars in a concrete structure can vary depending on various factors such as the quality of the rebars, the type of concrete used, the environmental conditions, and the level of maintenance. However, under normal circumstances, steel rebars in a well-constructed and maintained concrete structure can last for several decades or even longer.
- Q: Can steel rebars be used in structures with high carbonation levels in concrete?
- No, steel rebars should not be used in structures with high carbonation levels in concrete. Carbonation is a chemical process that occurs when carbon dioxide reacts with the alkaline components in concrete. It leads to a reduction in the alkalinity of the concrete, which can cause the passive layer protecting the steel rebars to dissolve. This exposes the steel to corrosion, which can weaken the structure over time. To mitigate the risk of corrosion, it is recommended to use alternative materials, such as stainless steel rebars, in structures with high carbonation levels. Stainless steel rebars have a higher resistance to corrosion than carbon steel rebars and can withstand the harsh environment created by high carbonation levels in concrete. Additionally, other corrosion protection measures, like epoxy coating or concrete cover thickness, should also be considered to further enhance the durability and longevity of the structure.
- Q: Can steel rebars be used in structures with high resistance to earthquakes?
- Yes, steel rebars can be used in structures with high resistance to earthquakes. Steel rebars are commonly used in reinforced concrete structures to enhance their strength and durability. In earthquake-prone areas, it is crucial to design and construct buildings that can withstand seismic forces. Steel rebars, when properly incorporated into the structural design, can help enhance the overall seismic performance of a building. Steel rebars provide several advantages in earthquake-resistant structures. Firstly, they increase the tensile strength of concrete, which is otherwise weak in tension. This reinforcement helps to prevent cracking and failure of the concrete during seismic events. Additionally, steel rebars can improve the ductility of the structure, allowing it to absorb and dissipate energy during an earthquake. This ductile behavior helps to minimize structural damage and ensures that the building remains stable and safe. Furthermore, steel rebars can be used in conjunction with other seismic design techniques to enhance the overall performance of the structure. For example, they can be combined with special concrete mixes, such as high-strength or fiber-reinforced concrete, to further improve the seismic resistance. Additionally, advanced structural systems like moment frames or shear walls can be integrated with steel rebars to provide even greater earthquake resistance. However, it is important to note that the earthquake resistance of a structure does not solely rely on the use of steel rebars. Proper design, construction techniques, and adherence to seismic building codes are also crucial factors. Engineers must consider various aspects such as the building's location, soil conditions, and expected seismic loads to ensure the structural integrity and safety of the building. In conclusion, steel rebars can be effectively used in structures with high resistance to earthquakes. Their inclusion in reinforced concrete structures enhances the tensile strength and ductility, enabling the building to withstand seismic forces. However, it is essential to implement comprehensive seismic design strategies and adhere to building codes to ensure the overall safety and performance of the structure.
- Q: Can steel rebars be used in wastewater storage tanks?
- Yes, steel rebars can be used in wastewater storage tanks.
- Q: How are steel rebars protected against accidental damage during construction?
- Steel rebars are protected against accidental damage during construction through various measures. One common method is to cover them with plastic caps or sleeves that provide a physical barrier and prevent them from being hit or damaged by construction equipment or debris. Additionally, rebars are often placed in designated areas and marked with caution tape to make workers aware of their presence and avoid accidental damage. Regular inspections are carried out to ensure rebars are not exposed or damaged, and if necessary, temporary barriers or covers are used to protect them until construction work is completed.
- Q: What are the guidelines for splicing steel rebars in a structure?
- The guidelines for splicing steel rebars in a structure are as follows: 1. Ensure proper design: The first step is to have a detailed design of the structure, which includes the required length and location of rebar splices. The design should follow the applicable building codes and standards. 2. Use approved methods: It is crucial to use approved methods for splicing steel rebars. The most common methods include lap splicing, mechanical splicing, and welded splicing. The selected method should be in compliance with the design requirements and accepted industry practices. 3. Determine splice length: The splice length is determined based on the structural requirements and the type of rebar being used. It is recommended to consult the design engineer or refer to the code requirements to determine the appropriate splice length. 4. Prepare the rebars: Before splicing, rebars should be cleaned of rust, scale, oil, or any other contaminants that may affect the bond strength. The ends of the rebars should be clean and free from deformations or irregularities. 5. Splice location: The location of the splice is critical and should be as per the design specifications. Splices should not be placed in areas subjected to high stress or where they may affect the structural integrity of the member. 6. Reinforcement continuity: Splicing should maintain the continuity of reinforcement to ensure the structural integrity. Adequate overlap or connection strength should be achieved to transfer loads between the spliced rebars. 7. Proper installation: During splicing, it is important to follow proper installation procedures. This may include using appropriate splicing materials, ensuring correct alignment and fit, and applying the recommended torque or tension for mechanical splices. 8. Quality control and inspection: Regular inspections should be conducted during and after the splicing process to ensure compliance with the design and quality standards. This may involve visual inspection, non-destructive testing, or load testing as required. 9. Documentation and record-keeping: It is essential to maintain proper documentation of the splicing process, including details of the method used, splice length, location, and any deviations from the design. This documentation helps in ensuring traceability and accountability. 10. Compliance with codes and standards: Lastly, all splicing activities should comply with the relevant building codes, industry standards, and specifications. It is advisable to refer to the specific code requirements applicable to the region and seek professional advice if needed.
- Q: Do steel rebars increase the overall weight of a structure?
- Yes, steel rebars do increase the overall weight of a structure. Rebars are typically used to reinforce concrete, providing additional strength and stability. Since steel is denser than concrete, the addition of rebars adds weight to the structure.
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Hot Rolled Deformed Steel Bar HRB400
- 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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