Hot-Rolled Steel Deformed Bar,Rebar,Deformed Steel Bar

Hot-Rolled Steel Deformed Bar,Rebar,Deformed Steel Bar System 1

Hot-Rolled Steel Deformed Bar,Rebar,Deformed Steel Bar

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 100 m.t.

Supply Capability:: 1000 m.t./month

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Specifications

deformed steel bar grade 40
material: HRB400, BS4449 GR460B
size: 8-36mmx12m.
short delivery time by bulk or container

deformed steel bar grade 40

material: HRB400, BS4449 GR460B
size: 8-36mmx12m.
short delivery time with bulk or container

packing: Mill standard export packing in bundles/coil, around 2tons/bundle.

country of Origin: China

delivery Time: Within a 35 days

Shipment: by bulk vessel or by container

Leading goods:

section steel:angles,channels,I-beam,H-beam;

coils:cold/hot rolled coils,PPGI,galvanized coils,plate,checkered plate,cutting steel plate,steel strip;

wire rod:steel wire,deformed wire,bar;

pipe:seamless pipe,rectangular pipe,welded pipe,spiral welded pipe,pipe fittings;

stainless steel:steel sheets,stainless steel strips,stainless bar,stainless tube;

special:weathering steel,shipbuilding steel;

construction steel:C-channel,Z-channel,T-bar,high-speed divider plate,corrugated steel plate,steel grating.

Advantage:

We are the spot supplier, Six huge warehouses which can hold 20,000 MT goods.

It makes the cost lower than others,we can provide the competitive price for you.

Delivery time:

Normal sizes can be provided in 7days, the others should be ready in 30---45 days.

Further treatment:

We can offer cutting,painting,drilling holes,bending,threading, welding,galvanization,packing etc.

Security interest:

We have already passed the ISO9001, BV and SGS authentication which makes the quality secured.

If you have the interest in any of the products we can provided, pls don't hesitate to connect with me. Looking forward to cooperate with you.

FAQ of Steel Deformed Bar

1. More than 10 years experience in this industry
2. 100,000 tons exporting per month
3. Professional foreign trade tea
4. OEM&ODM capacity
5. High quality assured & competitive price
6. Try our best to meet your needs & save your budget
7. Very popular in Southeast Asia, Africa, Mid-East and South America etc.
8. VIP membership system, first time customers and long-term cooperation customers can get extra discount on some products.

Q: How do steel rebars improve the strength and durability of concrete?: The strength and durability of concrete are greatly improved by steel rebars in several ways. Firstly, the inclusion of rebars reinforces the concrete structure, significantly increasing its tensile strength. While concrete is adept at resisting compression forces, it is weaker in tension. By embedding steel rebars within the concrete, the structure's ability to resist bending, cracking, and collapsing under heavy loads or external forces is greatly enhanced. Secondly, the presence of steel rebars prevents the occurrence of cracking and shrinkage in the concrete. As concrete dries and cures, it tends to shrink, leading to the formation of cracks. However, rebars help control and restrict this shrinkage by providing additional support and structural integrity. This effectively reduces the occurrence of cracks and ensures the long-term strength and durability of the concrete. Furthermore, the overall structural stability of the concrete is improved by steel rebars. When subjected to dynamic loads or seismic activity, concrete can undergo significant deformation or even fail. The inclusion of rebars helps distribute the load more evenly throughout the concrete structure, minimizing the risk of localized damage or collapse. This ultimately enhances the stability and safety of the concrete construction. Lastly, steel rebars contribute to the longevity and durability of concrete structures. The steel used in rebars is highly resistant to corrosion, which is a common issue in concrete exposed to harsh environmental conditions or moisture. By providing a protective layer called passivation, rebars prevent corrosion and maintain the structural integrity of the concrete over an extended period. This ensures that the concrete remains strong, durable, and resistant to degradation throughout its lifespan. In conclusion, steel rebars play a critical role in enhancing the strength and durability of concrete. They improve tensile strength, prevent cracking and shrinkage, enhance structural stability, and increase the lifespan of concrete structures. With the inclusion of steel rebars, concrete becomes a dependable and long-lasting construction material capable of withstanding various loads and environmental conditions.

Q: Can steel rebars be used in road construction projects?: Yes, steel rebars can be used in road construction projects. Steel rebars are commonly used as reinforcement in concrete structures, including roads. They help to increase the overall strength and durability of the road by reinforcing the concrete. The rebars are typically placed within the concrete pavement to provide tensile strength and prevent cracking or breaking under heavy loads. Additionally, steel rebars are corrosion-resistant, which is essential for road construction projects where exposure to moisture and harsh weather conditions is common. Overall, using steel rebars in road construction projects enhances the structural integrity and longevity of the road.

Q: Can steel rebars be galvanized for added protection?: Yes, steel rebars can be galvanized for added protection. Galvanizing is a process where a thin layer of zinc is applied to the surface of the steel rebar. This zinc coating acts as a sacrificial layer that provides protection against corrosion. It forms a barrier between the steel and the environment, preventing moisture and other corrosive elements from reaching the surface of the rebar. Galvanized steel rebars are commonly used in construction projects, particularly in areas where corrosion is a concern, such as coastal regions or environments with high humidity. The galvanizing process enhances the longevity and durability of the steel rebar, making it resistant to rust and corrosion.

Q: What are the different types of steel rebars used in railway bridges?: There are several types of steel rebars used in railway bridges, each with their own specific characteristics and applications. Some of the common types include: 1. Carbon Steel Rebars: These are the most commonly used rebars in railway bridges. They are made of carbon steel and provide high tensile strength and excellent durability. Carbon steel rebars can withstand heavy loads and are suitable for various railway bridge applications. 2. Stainless Steel Rebars: Stainless steel rebars are highly resistant to corrosion and are used in railway bridges located in coastal or high humidity areas. They offer excellent long-term performance and are particularly beneficial in preventing rust and deterioration caused by exposure to moisture and salt. 3. Galvanized Steel Rebars: Galvanized steel rebars are coated with a layer of zinc to enhance their corrosion resistance. They are commonly used in railway bridges in areas with aggressive environmental conditions, such as industrial zones or areas prone to chemical exposure. The zinc coating provides an additional protective barrier, increasing the rebars' lifespan. 4. Epoxy-Coated Steel Rebars: Epoxy-coated rebars are coated with a layer of epoxy resin, providing enhanced corrosion protection. They are commonly used in railway bridges exposed to harsh environments, such as bridges located near chemical plants or in heavily polluted areas. The epoxy coating acts as a barrier against corrosion and extends the rebars' service life. 5. Prestressed Steel Rebars: Prestressed steel rebars are designed to withstand high tension loads. They are used in railway bridges that require additional strength and stability, particularly in areas with heavy train traffic or where long spans need to be covered. Prestressed rebars are tensioned before the concrete is poured, allowing them to counteract the tensile forces and prevent cracking or deformation. These are just a few examples of the different types of steel rebars used in railway bridges. The choice of rebar type depends on various factors, including the environmental conditions, load requirements, and design specifications of the bridge. It is essential to select the appropriate type of rebar to ensure the structural integrity and longevity of railway bridges.

Q: Can steel rebars be used in underground construction projects?: Indeed, steel rebars have the ability to be utilized in underground construction endeavors. In fact, rebars are commonly employed in a wide array of construction projects, including those involving subterranean structures. The primary purpose of steel rebars is to fortify concrete and furnish the structure with added strength and stability. In underground construction specifically, rebars are frequently employed in the creation of foundations, walls, and columns to fortify the concrete and guarantee the integrity of the structure. By incorporating steel rebars into underground construction projects, the load-bearing capacity of the concrete is significantly enhanced, rendering it more impervious to the pressure and forces exerted by the surrounding soil and groundwater. Furthermore, steel rebars possess exceptional durability and corrosion resistance, thus rendering them appropriate for subterranean environments where they may be exposed to moisture and other potentially harmful elements. In sum, the inclusion of steel rebars in underground construction endeavors is absolutely vital in order to ensure the structural stability and longevity of these below-ground structures.

Q: What are the guidelines for proper spacing and arrangement of steel rebars in concrete structures?: Proper spacing and arrangement of steel rebars in concrete structures play a vital role in maintaining the structural integrity and strength of the final construction. Below are some key guidelines to consider: 1. Reinforcement Bar Spacing: The spacing between rebars is determined by the structural engineer, taking into account the intended load and design requirements. It is generally advisable to maintain a minimum spacing of three times the bar diameter. This spacing helps ensure sufficient concrete cover, providing protection against corrosion and enhancing fire resistance. 2. Bar Diameter and Grade: The selection of bar diameter and grade should be based on the structural demands and engineer's specifications. Common bar diameters range from 6mm to 50mm, with higher diameters used for heavy-duty construction. To meet the desired tensile strength and ductility, the steel grade should adhere to specified standards such as ASTM or BS. 3. Bar Placement and Alignment: Rebars should be accurately placed and aligned according to the structural drawings and specifications. They should be adequately supported to maintain their position during concrete placement. To ensure appropriate concrete cover, it is necessary to maintain a suitable clearance between the bars and the formwork, typically around 25mm to 50mm. 4. Splicing and Overlapping: When the required reinforcement length exceeds the available bar length, splicing or overlapping of bars becomes necessary. The splicing method should comply with the engineer's specifications and be performed using appropriate techniques like welding, mechanical couplers, or lap splices. Overlapping should be done as per the specified length, ensuring sufficient overlap to maintain continuity and structural integrity. 5. Reinforcement Around Openings: Special attention should be given to reinforcement around openings such as doorways, windows, and penetrations. Additional reinforcement bars, such as lintels or beams, may be required to distribute the load and prevent cracking or structural issues in these vulnerable areas. 6. Clear Cover: The clear cover refers to the distance between the concrete surface and the outer surface of the reinforcement bars. It is crucial for protecting the steel against corrosion, fire, and other environmental factors. The clear cover should be maintained as specified in the design drawings, typically ranging from 25mm to 75mm, depending on the structural requirements and exposure conditions. It is important to note that these guidelines may vary depending on specific project requirements, local building codes, and the recommendations of the structural engineer. Therefore, it is essential to consult and adhere to approved design documents and engage experienced professionals to ensure proper spacing and arrangement of steel rebars in concrete structures.

Q: What are the factors to consider while designing with steel rebars?: Designing with steel rebars requires careful consideration of several factors to ensure the structural integrity and performance of a construction project. These factors include load capacity, structural requirements, durability, construction methodology, building codes, and cost-effectiveness. Firstly, the anticipated load capacity of the structure must be taken into account. The size, spacing, and placement of rebars should be determined based on the expected loads that the structure will bear. Secondly, different structural elements have specific design requirements. The design of rebars should be tailored to meet the unique load distribution patterns of beams, columns, slabs, and foundations. Thirdly, the durability of steel rebars is crucial, as they are exposed to various environmental conditions. Protective measures, such as using epoxy-coated rebars or providing sufficient concrete cover, should be considered to prevent corrosion. Additionally, the construction methodology used for the project can influence the design of rebars. Factors such as formwork, construction joints, and accessibility during the placement of rebars need to be taken into account. Moreover, compliance with building codes and regulations is essential for safety and legality. Designers must adhere to specific requirements outlined in the codes, including minimum rebar sizes, spacing, and cover requirements. Lastly, cost-effectiveness should be considered without compromising the safety and performance of the structure. Optimizing the placement and arrangement of rebars can help minimize material and labor costs. In conclusion, by carefully evaluating these factors, designers can create robust, safe, and long-lasting structures when working with steel rebars.

Q: Are steel rebars suitable for use in structures with high resistance to corrosion?: No, steel rebars are not suitable for use in structures with high resistance to corrosion. While steel rebars are commonly used in construction due to their strength and durability, they are susceptible to corrosion when exposed to moisture and other corrosive elements. Over time, this can lead to the deterioration of the rebars and compromise the structural integrity of the entire structure. To ensure high resistance to corrosion, alternative materials such as stainless steel rebars or fiber-reinforced polymer (FRP) rebars are recommended. Stainless steel rebars contain a high percentage of chromium, which forms a protective oxide layer on the surface, preventing corrosion. FRP rebars, on the other hand, are non-metallic and do not corrode, making them an excellent choice for structures in corrosive environments. It is crucial to consider the environmental conditions and the expected lifespan of the structure when choosing the appropriate rebar material. By selecting rebars with high resistance to corrosion, the longevity and safety of the structure can be significantly improved.

Q: How do steel rebars help in load distribution within a structure?: Steel rebars help in load distribution within a structure by providing reinforcement and strength to the concrete. They are embedded within the concrete to enhance its tensile strength and prevent cracking or failure under heavy loads. The rebars act as a framework, distributing the applied load across a larger area and reducing stress concentrations, thereby ensuring the stability and durability of the structure.

Q: What is the role of steel rebars in industrial construction?: Steel rebars play a crucial role in industrial construction as they provide reinforcement and strength to concrete structures. They are commonly used to reinforce beams, columns, and slabs, enhancing their load-bearing capacity and durability. By preventing cracks and ensuring structural stability, steel rebars help industrial buildings withstand heavy loads, seismic activity, and other external forces, making them a vital component in ensuring the safety and longevity of the construction project.

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