Steel Ribbed Bar For Construction Hot Rolled

Steel Ribbed Bar For Construction Hot Rolled

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t.

Supply Capability:: 10000 m.t./month

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Specifications

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: (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

Usage and 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..

Packaging & Delivery

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

Note

1. Our products are produced according to national standard (GB), if not, supply according to national standards (GB) or agreement as customer required.

2. Other Grade and Standard Deformed Steel Bar we can supply:

Grade: GR40/GR60, G460B/B500A/B500B/B500C,BST500S

Standard: ASTM, BS, DIN

The Minimum Order Quantity of these products is high, and need to be confirmed.

3. We can not only supply Deformed Steel Bar; if you need anything about building materials, please contact us for further information.

4. Please send us your detail specifications when inquire. We will reply to you as soon as possible. We sincerely hope we can establish a long stable business relationship.

Q: Can steel rebars be used in modular bridge construction?: Yes, steel rebars can be used in modular bridge construction. Steel rebars, also known as reinforcing bars, are commonly used in bridge construction to provide reinforcement and strength to the concrete elements. In modular bridge construction, precast concrete elements are used to assemble the bridge components off-site, and steel rebars are embedded within these elements to enhance their structural integrity. The use of steel rebars in modular bridge construction allows for a more efficient and cost-effective construction process. The precast elements can be manufactured in a controlled environment, ensuring high-quality and consistent production. The steel rebars are accurately placed within the elements during the manufacturing process, ensuring proper reinforcement, and eliminating the need for on-site rebar installation. Additionally, steel rebars provide the necessary strength to withstand the loads and stresses that bridges are subjected to. They help in distributing the load evenly and preventing cracking or failure of the concrete elements. The use of steel rebars in modular bridge construction ensures the durability and longevity of the bridge structure. Moreover, steel rebars can be easily integrated into the modular bridge design, allowing for flexibility and customization. Different sizes and configurations of rebars can be used based on the specific requirements of the bridge project, ensuring optimal structural performance. In conclusion, steel rebars are widely used in modular bridge construction as they provide reinforcement, strength, and durability to the precast concrete elements. Their use ensures a cost-effective and efficient construction process while maintaining the structural integrity of the bridge.

Q: Are there any specific safety precautions to be taken while handling steel rebars?: Yes, there are specific safety precautions to be taken while handling steel rebars. Some of these precautions include wearing appropriate personal protective equipment (PPE) such as gloves, safety boots, and eye protection to prevent injuries. It is also important to ensure a safe lifting technique while handling heavy rebars to avoid strains or back injuries. Additionally, workers should be cautious of sharp ends of the rebars and use caution to avoid any cuts or punctures. Regular inspection and maintenance of the rebars is essential to identify any damages or defects that could compromise safety.

Q: What is the role of steel rebars in tunnel construction?: The role of steel rebars in tunnel construction is to provide reinforcement and strength to the concrete structure, ensuring its stability and durability. The rebars are strategically placed within the tunnel walls and roof to withstand the pressure and tension exerted by the surrounding soil and rock, preventing cracks and collapse. They help distribute the load evenly, enhancing the structural integrity of the tunnel and minimizing the risk of structural failure.

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.

Q: What are the common challenges in handling steel rebars during construction?: Construction often presents numerous obstacles when it comes to managing steel rebars. One primary hurdle involves the weight and size of the rebars themselves. These metal rods can be quite cumbersome and unwieldy, making it challenging to lift and manipulate them on the construction site. Failing to employ appropriate lifting techniques and equipment can result in worker injuries. Another issue concerns the storage and organization of rebars. Given the various lengths and sizes they come in, it becomes crucial to maintain a well-organized storage area that keeps them separate and easily accessible. Neglecting to do so can lead to construction delays and inefficiencies. Moreover, steel rebars are prone to rust and corrosion if mishandled or stored improperly. Exposing them to moisture, rain, or excessive humidity can cause deterioration, which weakens structures. Therefore, it is vital to safeguard rebars from these elements and store them in a dry, well-ventilated space. Additionally, placing and aligning rebars within concrete structures poses a challenge. This task demands skilled labor and precision to ensure that rebars are correctly positioned according to construction plans. Any errors in placement can compromise the building's structural integrity, leading to safety concerns and expensive repairs. Finally, transporting rebars to the construction site poses a logistical challenge. Coordinating their delivery and ensuring they arrive on time and in the required quantities can be complex, especially in large-scale projects. Delays in receiving rebars can result in project delays and additional costs. In conclusion, effectively managing steel rebars during construction necessitates careful planning, proper storage, skilled labor, and adherence to safety protocols. By addressing these common challenges, construction projects can ensure the successful and efficient utilization of steel rebars.

Q: Are there any specific codes and standards for steel rebars?: Yes, there are specific codes and standards for steel rebars. The most widely used international standard for steel rebars is the ASTM A615/A615M Standard Specification for Deformed and Plain Carbon-Steel Bars for Concrete Reinforcement. Additionally, different countries may have their own national standards and codes for steel rebars, such as the British Standard BS 4449:2005 for steel rebars in the United Kingdom. These codes and standards ensure the quality, strength, and performance of steel rebars in construction and reinforce the safety of reinforced concrete structures.

Q: What are the guidelines for spacing steel rebars in reinforced concrete?: Spacing steel rebars in reinforced concrete structures can vary depending on factors such as structural design requirements, load-bearing capacity, and the size and shape of concrete elements. However, there are some general guidelines that can be followed to ensure proper spacing and reinforcement. 1. Rebar spacing: The recommended spacing between steel rebars in reinforced concrete is typically three to six times the diameter of the bars. For example, if the rebar diameter is 12mm, the spacing should be between 36mm and 72mm. This spacing allows for adequate concrete cover and allows the concrete to flow freely around the reinforcement, ensuring optimal strength and durability. 2. Minimum spacing: To prevent rebars from being too close to each other, minimum spacing requirements are in place. This is to avoid inadequate concrete cover and hindered flow of concrete during construction. The minimum spacing between parallel bars is generally specified to be around 25mm or more. 3. Maximum spacing: On the other hand, there are also maximum spacing requirements to ensure sufficient reinforcement and prevent excessive cracking or failure of the concrete structure. The typical maximum spacing is around 300mm, although this may vary based on specific design requirements and the size of the concrete element being reinforced. 4. Spacing around corners and bends: Special attention should be given to rebars' spacing around corners and bends in reinforced concrete elements. The spacing should be reduced in these areas to provide adequate reinforcement and prevent cracks or weak points. In general, the spacing around corners and bends should be less than the recommended spacing for straight sections. 5. Spacing in heavily loaded areas: In areas subjected to heavy loads or high-stress concentrations, such as columns, beams, or foundations, closer spacing of rebars is necessary to provide sufficient reinforcement. The spacing in these areas is typically reduced to ensure structural integrity and prevent failure. It is important to note that these guidelines are general recommendations, and specific projects may have unique requirements based on structural design and local building codes. Therefore, consulting with a structural engineer or following the specifications provided by the project's design professionals is crucial to ensure the proper spacing of steel rebars in reinforced concrete structures.

Q: Are steel rebars suitable for use in aggressive environments?: Steel rebars are indeed suitable for use in aggressive environments. Steel rebars are commonly used in construction projects, particularly in reinforced concrete structures, due to their high tensile strength and durability. However, in aggressive environments where the rebar is exposed to corrosive elements such as moisture, chloride ions, and chemicals, corrosion can occur, weakening the rebars and compromising the structural integrity of the concrete. To combat this issue, steel rebars are often coated with protective materials like epoxy or zinc to provide a barrier against corrosion. Additionally, stainless steel rebars are also used in aggressive environments due to their superior corrosion resistance properties. In conclusion, while steel rebars are generally suitable for use in aggressive environments, it is crucial to consider the specific conditions and ensure appropriate protective measures are taken to prevent corrosion and maintain the longevity of the reinforced concrete structure.

Q: What is the typical cost of steel rebars per ton?: The typical cost of steel rebars per ton can vary depending on factors such as location, market conditions, and the specific grade and size of the rebars. However, as of 2021, the average cost of steel rebars per ton ranges between $500 to $800.

Q: Can steel rebars be used in the construction of railway or subway systems?: Yes, steel rebars can be used in the construction of railway or subway systems. Steel rebars, also known as reinforcement bars, are commonly used in construction projects to provide strength and durability to concrete structures. In the case of railway or subway systems, steel rebars are often used to reinforce the concrete foundations, pillars, beams, and other structural components of the infrastructure. The use of steel rebars helps to enhance the structural integrity and load-bearing capacity of the railway or subway system, ensuring its safety and longevity. Additionally, steel rebars are also corrosion-resistant, which is crucial in environments where there may be exposure to moisture or chemicals. Therefore, steel rebars are a reliable and commonly used material in the construction of railway or subway systems.

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