HIGH QUALITY HOT ROLLED STEEL REBARBS STANDARD
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 50 m.t.
- Supply Capability:
- 100000 m.t./month
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Product Description:
Specifications of Hot Rolled Steel Rebar:
The production process of Steel Rebar
1-Waling beam furnace 2-Roughing rolling group 3-Intermediate rolling train
4-Finishing rolling group 5-Water-cooling device 6-Walking beam cooler
7-Finishing equipment(including the cold scale shear,short feet collection system,
automatic counting device,bundling machine, collect bench)
Usage and Applications of Hot Rolled Steel Rebar:
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 Hot Rolled Steel Rebar:
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 terms: TT payment in advance or Irrevocable LC at sight.
Trade terms :FOB, CFR, CIF
Label:to be specified by customer, generally, each bundle has 1-2 labels
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: What is the impact of steel rebars on the aesthetics of a structure?
- Steel rebars, being an essential component of reinforced concrete structures, generally have minimal impact on the aesthetics of a building. They are typically concealed within the structure and remain hidden from view. However, in certain architectural designs where rebars are intentionally exposed, they can contribute to an industrial or modern aesthetic. Overall, the impact of steel rebars on the aesthetics of a structure is largely dependent on the design intent and whether they are meant to be visible or not.
- Q: How is steel rebar made?
- Steel rebar, which is short for reinforcing bar, undergoes a process known as steel reinforcement fabrication to be produced. The initial stage of manufacturing steel rebar involves melting down raw materials such as iron ore, coal, and limestone in a blast furnace. This procedure, called smelting, results in the creation of molten iron. Following smelting, the molten iron is refined and purified in a basic oxygen furnace to eliminate impurities such as carbon, sulfur, and phosphorous. By refining the molten iron, the steel that is produced attains the desired strength and properties. Once the refining process is complete, the steel is cast into long, solid bars called billets. These billets are then heated and rolled into elongated strands known as rebars. The rolling process entails passing the billets through a series of rollers that gradually shape and elongate the steel. After the rebars have been formed, they are cooled and cut into various lengths based on their intended use, such as reinforcing concrete in structures like buildings and bridges. To further enhance the strength and durability of the rebar, it can undergo a process called quenching and tempering. This involves subjecting the rebar to high temperatures, followed by rapid cooling and subsequent reheating and slow cooling. This process significantly improves the mechanical properties of the rebar, making it more resistant to wear, corrosion, and other external forces. Finally, the rebar undergoes a surface treatment process, such as hot-dip galvanizing or epoxy coating, to safeguard it against rust and corrosion. This coating ensures that the rebar maintains its structural integrity and longevity when utilized in various construction applications. In summary, the production of steel rebar involves a series of steps, including smelting, refining, casting, rolling, cutting, heat treatment, and surface coating. These processes guarantee that the final product meets the necessary strength and durability requirements for reinforcing concrete structures.
- Q: What is the effect of steel rebars on the weight of a structure?
- Steel rebars have a significant effect on the weight of a structure, as they add additional mass to the overall construction.
- Q: What are the guidelines for proper bending of steel rebars on construction sites?
- The guidelines for proper bending of steel rebars on construction sites typically include the following: 1. Use the correct tools: Ensure that the bending tools, such as rebar benders or hydraulic machines, are suitable for the specific diameter and grade of the rebar being bent. 2. Follow the bending specifications: Adhere to the bending specifications mentioned in the construction drawings or project plans. These specifications outline the required bending angles, radii, and bend locations for each rebar. 3. Handle rebar with care: Ensure proper handling and storage of rebars to prevent damage or deformations that may affect the bending process. 4. Measure accurately: Take precise measurements before bending to ensure the rebars are cut to the correct length and the bends are made at the designated locations. 5. Use proper bending techniques: Employ appropriate bending techniques, such as using gradual bends rather than sharp angles, to prevent stress concentrations and minimize the risk of rebar failure. 6. Inspect bent rebars: Regularly inspect the bent rebars for any cracks, deformations, or defects that may compromise their structural integrity. Replace any damaged rebars promptly. 7. Follow safety precautions: Always prioritize safety by wearing appropriate protective equipment, such as gloves and safety glasses, and following established safety protocols while bending rebars. It is important to note that guidelines may vary depending on local regulations, project requirements, and specific rebar types. Therefore, it is essential to consult with relevant industry standards, project specifications, and experienced professionals to ensure compliance and achieve proper bending of steel rebars on construction sites.
- Q: Are steel rebars resistant to chemical attacks?
- Steel rebars are generally resistant to chemical attacks, but their resistance can vary depending on the specific chemicals they are exposed to. Steel rebars are primarily made of carbon steel, which is known for its high strength and durability. Carbon steel has good resistance to many common chemicals, such as water, mild acids, and alkalis. However, certain chemicals can pose a threat to steel rebars and cause corrosion or deterioration. For example, strong acids, such as sulfuric acid or hydrochloric acid, can rapidly corrode steel rebars. Additionally, exposure to chlorides, such as those found in saltwater or deicing salts, can increase the risk of corrosion in steel rebars. To enhance the resistance of steel rebars to chemical attacks, various protective measures can be taken. One common method is to apply a protective coating, such as epoxy or zinc, on the rebars. This coating acts as a barrier between the steel and the chemicals, preventing direct contact and reducing the risk of corrosion. In summary, while steel rebars are generally resistant to chemical attacks, their resistance can be influenced by the specific chemicals they are exposed to. Proper protective measures can be taken to enhance their resistance and prolong their lifespan in environments where chemical exposure is a concern.
- Q: What is the purpose of stirrups in steel rebar reinforcement?
- The purpose of stirrups in steel rebar reinforcement is to provide lateral support and enhance the overall structural integrity of reinforced concrete elements. Stirrups are typically made of bent steel bars that are placed around the longitudinal rebar within a concrete column, beam, or slab. One of the main functions of stirrups is to prevent the longitudinal rebar from buckling or bending due to external forces such as compression, tension, or shear. By enclosing the rebar in a series of closely spaced stirrups, the overall strength and stability of the reinforced concrete element are significantly increased. Stirrups also play a crucial role in resisting shear forces, which occur when a structure is subjected to lateral loads or earthquakes. These forces can cause the concrete to crack and fail. However, the presence of stirrups helps distribute the shear stresses more evenly, effectively preventing the formation and propagation of cracks. Furthermore, stirrups enhance the bond between the rebar and concrete by providing additional contact area. This results in improved load transfer and prevents slippage between the rebar and the surrounding concrete. In summary, the purpose of stirrups in steel rebar reinforcement is to enhance the structural strength, stability, and durability of reinforced concrete elements. They provide lateral support, resist bending and shear forces, and improve the bond between the rebar and concrete. By incorporating stirrups into the reinforcement design, engineers can ensure that the concrete structure can withstand various external loads and maintain its integrity over time.
- Q: What are the advantages of using corrosion-resistant steel rebars?
- There are several advantages of using corrosion-resistant steel rebars in construction projects. Firstly, corrosion-resistant steel rebars offer enhanced durability and longevity. Regular steel rebars are prone to corrosion when exposed to moisture and chemicals, which can significantly reduce their lifespan. However, corrosion-resistant steel rebars are specifically designed to resist corrosion, ensuring a longer service life for the structure. This is particularly beneficial in environments with high humidity, coastal areas, or regions with high levels of pollution. Secondly, the use of corrosion-resistant steel rebars helps in maintaining the structural integrity of the building. Corrosion can weaken the rebars, leading to structural failures and safety hazards. By using corrosion-resistant steel rebars, the risk of corrosion-induced structural damage is minimized, ensuring the safety of the occupants and the overall stability of the structure. Additionally, the maintenance costs associated with corrosion-resistant steel rebars are significantly lower compared to regular steel rebars. Structures built with regular steel rebars require frequent inspections, repairs, and maintenance to prevent and address corrosion issues. However, corrosion-resistant steel rebars reduce the need for such maintenance, resulting in reduced costs over the lifespan of the structure. Furthermore, corrosion-resistant steel rebars offer increased flexibility in design and construction. The properties of these rebars allow for the construction of thinner and lighter structures without compromising on strength. This can lead to cost savings in terms of materials and construction time, making corrosion-resistant steel rebars a cost-effective solution. Lastly, the use of corrosion-resistant steel rebars contributes to sustainable construction practices. By increasing the lifespan of the structure and reducing the need for maintenance, the environmental impact of the construction project is minimized. Additionally, the use of these rebars can contribute to obtaining green building certifications, promoting sustainable and environmentally-friendly construction practices. In conclusion, the advantages of using corrosion-resistant steel rebars include enhanced durability, improved structural integrity, reduced maintenance costs, increased design flexibility, and promoting sustainable construction practices.
- Q: What is the role of steel rebars in preventing structural collapse?
- The prevention of structural collapse is a crucial role played by steel rebars, as they reinforce concrete structures. While concrete is strong in compression, it lacks strength in tension. This is where steel rebars come into play, effectively enhancing the tensile strength of the concrete. When a building or any concrete structure is subjected to structural loads, the rebars distribute the load across a wider area. This prevents the concrete from cracking and failing under stress. By providing a means for the concrete to resist tension and bending forces, steel rebars help maintain the integrity and stability of the structure. In addition to improving tensile strength, rebars also increase the overall ductility and flexibility of the concrete. This is especially important during events like earthquakes or high winds, as structures must withstand significant lateral forces. The presence of rebars allows the concrete to absorb and dissipate these forces, reducing the risk of structural failure. Furthermore, steel rebars play a role in preventing structural collapse by resisting the effects of corrosion. When embedded in concrete, the rebars are shielded from moisture and other corrosive elements. This ensures their long-term durability and ability to support the structure. To summarize, steel rebars are essential components in preventing structural collapse. They reinforce concrete structures, enhance tensile strength, improve ductility, resist corrosion, and ultimately contribute to the overall safety and stability of buildings and other concrete constructions.
- Q: Are there any limitations on using steel rebars in cold climates?
- Yes, there are limitations on using steel rebars in cold climates. The main limitation is the potential for the steel to become brittle and lose its strength in extremely cold temperatures. This can result in reduced durability and structural integrity of the reinforced concrete. To overcome this limitation, additional measures such as using low-temperature resistant steel or providing proper insulation and heating during construction may be necessary.
- Q: How do steel rebars help in reducing construction time?
- Steel rebars contribute to the reduction of construction time in several ways. Firstly, they enhance the strength and durability of concrete structures, enabling builders to employ quicker construction techniques. This obviates the necessity for slower and more time-consuming methods as the rebars provide sufficient support for the structure's weight. Secondly, the reinforcement of concrete with steel rebars enhances the overall structural integrity of the building. Consequently, builders can employ thinner concrete sections without compromising the structure's strength. These thinner sections require less material and can be poured and cured more rapidly and easily, thus saving construction time. Thirdly, the installation of steel rebars is a speedy process due to their easy handling and installation characteristics. They can be conveniently cut and bent to fit the desired shape and size, facilitating efficient installation. Consequently, the requirement for complicated and time-consuming formwork is eliminated, resulting in a reduction in construction time. Fourthly, steel rebars offer design and construction flexibility, enabling the utilization of innovative and efficient building techniques. They can be utilized in a variety of applications, including beams, columns, and slabs, granting architects and engineers the freedom to design structures that can be rapidly and efficiently constructed. Lastly, steel rebars provide additional resistance to natural disasters such as seismic activity and extreme weather conditions. By reinforcing concrete with rebars, structures become more resilient, reducing the risk of damage and expediting the construction process. This is particularly crucial in areas that are prone to earthquakes or adverse weather conditions. In conclusion, steel rebars play a pivotal role in reducing construction time by providing strength, durability, flexibility, ease of installation, and the ability to reinforce concrete structures. These qualities facilitate faster construction methods and efficient use of materials.
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HIGH QUALITY HOT ROLLED STEEL REBARBS STANDARD
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 50 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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