HRB400 Deformed Steel Bar,Reinforced Deformed Steel Bar
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 30 m.t.
- Supply Capability:
- 100000 m.t./month
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Specification
Standard:
AISI,JIS,GB,BS,DIN,API,EN,ASTM
Technique:
Hot Rolled,Cold Rolled,Cold Drawn,ERW,Forged,Saw,Extruded,EFW,Spring
Shape:
U Channel,Square,C Channel,Hexagonal,Round,Rectangular,Oval,LTZ
Surface Treatment:
Galvanized,Coated,Copper Coated,Color Coated,Oiled,Dry,Chromed Passivation,Polished,Bright,Black,PVDF Coated
Steel Grade:
Q195,Q215,Q235,Q215B,Q235B,RHB335,HRB400,200 Series,300 Series,400 Series,600 Series,SS400-SS490,10#,20#,A53(A,B)
Certification:
ISO,SGS,BV,IBR,RoHS,CE,API,BSI,UL
Thickness:
--
Length:
--
Net Weight:
--
Product Description:
Specifications of HRB400 Deformed Steel Bar,Reinforced Deformed Steel Bar
Standard | GB | HRB400 | |
Diameter | 6mm,8mm,10mm,12mm,14mm,16mm,18mm,20mm, 22mm,25mm,28mm,32mm,36mm,40mm,50mm | ||
Length | 6M, 9M,12M or as required | ||
Place of origin | Hebei, China mainland | ||
Advantages | exact size, regular package, chemical and mechanical properties are stable. | ||
Type | Hot rolled deformed steel bar | ||
Chemical Composition of HRB400 Deformed Steel Bar,Reinforced Deformed Steel Bar
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 | |||||
Usage and Applications of HRB400 Deformed Steel Bar,Reinforced Deformed Steel Bar
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..
Packaging & Delivery of HRB400 Deformed Steel Bar,Reinforced Deformed Steel Bar
Packaging Detail: products are packed in bundle and then shipped by container or bulk vessel, deformed bar is usually naked strapping delivery, when storing, please pay attention to moisture proof. The performance of rust will produce adverse effect.
Each bundle weight: 2-3MT, or as required
Payment term: TT or L/C
Delivery Detail: within 45 days after received advanced payment or LC.
Label: to be specified by customer, generally, each bundle has 1-2 labels
Trade terms: FOB, CFR, CIF
Images of HRB400 Deformed Steel Bar,Reinforced Deformed Steel Bar
- Q: What are the different methods of joining steel rebars?
- There is a range of methods available for joining steel rebars, each with its own set of advantages and disadvantages. Here, we present the most common techniques: 1. Lap Splicing: The most widely used method for joining rebars is lap splicing. It entails overlapping two rebars and securing them together with wire or metal ties. This approach is cost-effective and straightforward, but it necessitates longer lap lengths to achieve the required strength. 2. Mechanical Splicing: Mechanical splicing involves connecting rebars using mechanical couplers or splices. These couplers are specifically designed to establish a strong and dependable connection between the rebars. Mechanical splicing enables quicker installation and reduces the need for lengthy overlaps. However, it may be more costly compared to lap splicing. 3. Welding: Another option for joining steel rebars is welding. This process involves heating the rebars and fusing them together using electric arcs or gas flames. Welding creates a robust and permanent connection, but it requires skilled labor and specialized equipment. It is commonly employed in precast concrete applications. 4. Bolted Connections: Bolted connections utilize bolts and nuts to join the rebars. This method offers a flexible and adjustable connection, making it suitable for certain applications. However, bolted connections necessitate additional hardware and may not be as strong as other methods. 5. Adhesive Bonding: Adhesive bonding involves using epoxy or other adhesives to join rebars. The adhesive is applied to the rebars, and they are pressed together until the adhesive cures and forms a strong bond. Adhesive bonding provides a clean and aesthetically pleasing finish, but it may not offer the same level of strength as other methods and is more suitable for non-structural applications. It is essential to consider factors such as specific project requirements, structural design, and construction techniques when selecting a joining method. Consulting with structural engineers and adhering to industry standards and codes is crucial to ensure the appropriate selection and implementation of the joining method for steel rebars.
- Q: How do steel rebars contribute to the overall seismic performance of a structure?
- Steel rebars contribute to the overall seismic performance of a structure by enhancing its strength, ductility, and energy dissipation capacity. These reinforcement bars are embedded in concrete and help to resist the forces generated during an earthquake. By providing tensile strength to the concrete, rebars prevent cracks and brittle failure, enabling the structure to withstand the seismic forces and safely dissipate the energy. Overall, steel rebars significantly improve the resilience and structural integrity of buildings during seismic events.
- Q: What is the role of steel rebars in reducing concrete shrinkage?
- The reinforcement and added strength provided by steel rebars are crucial in minimizing concrete shrinkage. When concrete cures, it goes through hydration, a process in which it loses water and shrinks. This shrinkage has the potential to cause cracking and structural instability. By incorporating steel rebars into the concrete, they serve as reinforcement and help counteract shrinkage. These rebars offer tensile strength, which means they can resist pulling or stretching forces. As the concrete shrinks, the rebars hold it together and prevent excessive cracking. Moreover, steel rebars aid in distributing the load more evenly throughout the concrete structure. This reduces stress concentration in specific areas and further reduces the likelihood of shrinkage-related cracking. Additionally, steel rebars can act as thermal conductors, promoting even heat dissipation within the concrete. This prevents temperature differences within the structure, which can lead to differential shrinkage and subsequent cracking. To summarize, steel rebars play a vital role in reducing concrete shrinkage by providing reinforcement, resisting tensile forces, distributing loads, and regulating temperature differences. Consequently, they enhance the overall durability and stability of the concrete structure, minimizing the adverse effects of shrinkage.
- Q: Can steel rebars be used in structures with high chloride ion concentration?
- Steel rebars should not be used in structures with high chloride ion concentration as it can lead to corrosion and structural degradation. Instead, alternative materials such as stainless steel rebars or fiber-reinforced polymers should be used to ensure durability and integrity of the structure.
- Q: How are steel rebars transported to the construction site?
- Various methods are employed for the transportation of steel rebars, also known as reinforcing bars, to construction sites. One commonly used approach involves the use of trucks. The rebars are loaded onto flatbed trucks or trailers and firmly secured with straps or chains to prevent any shifting during transit. These trucks are specially designed to withstand the weight and length of the rebars, boasting robust frames and loading mechanisms. Another method is rail transportation. Steel rebars can be loaded onto rail cars, either on flatcars or in specialized containers, and transported to the construction site. This method proves particularly advantageous for long-distance transportation, as it offers a more cost-effective and efficient solution for large quantities of rebars. For construction projects situated near waterways, the transportation of rebars can also be accomplished by sea or barge. The rebars are loaded onto ships or barges and properly secured to prevent any damage or movement during transit. This method is commonly employed for projects necessitating substantial quantities of rebars or for construction sites located on islands or in coastal areas. Upon arrival at the construction site, cranes or forklifts are typically utilized to unload the steel rebars. These rebars are then either stored in designated areas or immediately employed for reinforcement in the construction process. It is of utmost importance to handle the transportation of rebars with caution, as this ensures their structural integrity and guards against potential accidents or damage during transit.
- Q: What are the different methods for reinforcing concrete with steel rebars?
- Some of the different methods for reinforcing concrete with steel rebars include placing the rebars in a grid pattern throughout the concrete structure, using stirrups or ties to hold the rebars in place, and using pre-fabricated mesh or rebar mats as a convenient way to reinforce large areas of concrete. Additionally, epoxy-coated rebars can be used to protect against corrosion and increase the longevity of the reinforced concrete.
- Q: How are steel rebars marked for identification?
- Steel rebars are typically marked for identification through a combination of embossed letters or numbers, paint markings, or colored plastic caps. These marking methods allow for easy identification and sorting of rebars based on their dimensions, grade, and manufacturer.
- Q: What is the maximum length of steel rebars available?
- The maximum length of steel rebars available can vary depending on the manufacturer and supplier. However, in most cases, the standard maximum length of steel rebars is around 60 feet or 18 meters.
- Q: Can steel rebars be used in tunneling and mining operations?
- Yes, steel rebars can be used in tunneling and mining operations. Rebars, which are steel bars commonly used to reinforce concrete structures, can also be employed in underground construction projects such as tunnels and mines. These steel bars provide additional strength and stability to the structures in these environments, ensuring durability and safety. In tunneling projects, rebars are often embedded in shotcrete or concrete linings to enhance the structural integrity of the tunnel walls and prevent collapse. Similarly, in mining operations, rebars are used to reinforce the roofs, walls, and support structures within the mine, safeguarding against potential hazards such as rockfalls and cave-ins. The use of steel rebars in tunneling and mining operations is crucial for maintaining the integrity and stability of these underground structures.
- Q: What are the guidelines for the proper anchoring of steel rebars in walls?
- The proper anchoring of steel rebars in walls is crucial to ensure the structural integrity and stability of the construction. Here are some guidelines to follow for the correct anchoring of steel rebars in walls: 1. Determine the required rebar size and spacing: The size and spacing of rebars depend on the design specifications and load requirements. Consult the structural engineer or refer to the building codes for the appropriate rebar size and spacing. 2. Clean and prepare the concrete surfaces: Before anchoring the rebars, ensure that the concrete surfaces are clean, free from dust, debris, and any loose material. Use a wire brush or compressed air to remove any contaminants. 3. Use proper anchoring techniques: The most common method for anchoring steel rebars in walls is by embedding them into the concrete. Ensure that the rebars are securely embedded by following these steps: a. Drill holes: Drill holes in the concrete wall at the specified locations and depths, ensuring that the diameter of the hole matches the rebar size. b. Clean the drilled holes: Remove any dust or debris from the drilled holes using compressed air or a brush. c. Insert rebars: Insert the rebars into the drilled holes, making sure they reach the required embedment depth. d. Proper spacing: Maintain the specified spacing between rebars based on the design requirements. e. Secure rebars: Use appropriate anchoring materials like epoxy resin or grout to secure the rebars in place. Follow the manufacturer's instructions for mixing and applying the anchoring material. f. Ensure proper alignment: Verify that the rebars are correctly aligned, both horizontally and vertically, before the anchoring material sets. 4. Allow sufficient curing time: After anchoring the rebars, allow sufficient time for the anchoring material to cure. This ensures that the rebars are firmly secured in place. 5. Properly protect the rebars: Once the rebars are anchored, protect them from corrosion by applying a suitable corrosion-resistant coating or using corrosion-resistant rebars. It is essential to follow these guidelines, as improper anchoring of steel rebars can compromise the structural integrity of the walls and pose safety risks. Always consult with a qualified structural engineer or building professional for specific guidelines tailored to your project.
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HRB400 Deformed Steel Bar,Reinforced Deformed Steel Bar
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 30 m.t.
- Supply Capability:
- 100000 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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