Deformed Steel Bar HRB400
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Product Description:
OKorder is offering Deformed Steel Bar HRB400 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.
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 | ||
Brand name | DRAGON | ||
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 | |||||
Theoretical weight and section area of each diameter as below for your information:
Diameter(mm) | Section area (mm²) | Mass(kg/m) | Weight of 12m bar(kg) |
6 | 28.27 | 0.222 | 2.664 |
8 | 50.27 | 0.395 | 4.74 |
10 | 78.54 | 0.617 | 7.404 |
12 | 113.1 | 0.888 | 10.656 |
14 | 153.9 | 1.21 | 14.52 |
16 | 201.1 | 1.58 | 18.96 |
18 | 254.5 | 2.00 | 24 |
20 | 314.2 | 2.47 | 29.64 |
22 | 380.1 | 2.98 | 35.76 |
25 | 490.9 | 3.85 | 46.2 |
28 | 615.8 | 4.83 | 57.96 |
32 | 804.2 | 6.31 | 75.72 |
36 | 1018 | 7.99 | 98.88 |
40 | 1257 | 9.87 | 118.44 |
50 | 1964 | 15.42 | 185.04 |
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 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
Product Applications:
Deformed Steel Bar HRB400 are ideal for structural applications and are widely used in the construction of buildings and bridges, and the manufacturing, petrochemical, and transportation industries.
Product Advantages:
OKorder's Deformed Steel Bar HRB400 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
Product Specifications:
Standard: GB
Material: Q235
Origin place: China
FAQ:
Q1: Can stainless steel rust?
A1: 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.
Q2: How do we guarantee the quality of our products?
A2: We have established an advanced quality management system which conducts strict quality tests at every step, from raw materials to the final product. At the same time, we provide extensive follow-up service assurances as required.
Q3: How soon can we receive the product after purchase?
A3: Within three days of placing an order, we will begin production. The specific shipping date is dependent upon international and government factors, but is typically 7 to 10 workdays.
bdenum enhance this surface layer and improve the corrosion resistance of the stainless material.
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- Q: How do steel rebars reinforce concrete?
- The structural stability of concrete is reinforced by steel rebars, which provide additional strength. Concrete possesses strength under compression but is weak when subjected to tension. To counteract this weakness and enhance its tensile strength, steel rebars are embedded in the concrete. The rebars function as reinforcement by absorbing the tensile forces that arise when a structure undergoes bending or stretching. In the presence of such forces, the rebars evenly distribute the load across the concrete, preventing cracks and failure. This is particularly crucial in buildings, bridges, and dams, where the concrete must withstand diverse external forces. Furthermore, the rebars help regulate the expansion and contraction of the concrete resulting from temperature changes. Since steel and concrete have similar coefficients of thermal expansion, steel rebars assist in minimizing stress caused by temperature fluctuations, thus reducing the likelihood of cracking. Additionally, the bond between the steel rebars and the concrete is vital for effective reinforcement. The rough surface of the rebars ensures excellent adherence to the surrounding concrete, enabling them to function as a composite material. This bond facilitates the transfer of stress from the concrete to the rebars, thereby enhancing the overall strength and durability of the structure. To summarize, steel rebars reinforce concrete by providing tensile strength, distributing loads, controlling temperature-induced stress, and establishing a robust bond with the concrete. The combination of concrete and steel results in a reinforced concrete structure capable of withstanding various external forces and maintaining its structural integrity over time.
- Q: What is the process of connecting steel rebars to structural members?
- The process of connecting steel rebars to structural members is typically done through a method called rebar tying. This involves placing the rebars in the desired positions within the structural member, and then using wire or steel tie rods to securely fasten the rebars to the member. The ties are typically twisted or tightened to ensure a strong and reliable connection between the rebars and the structural member. This process is crucial in reinforcing concrete structures and ensuring their strength and stability.
- Q: Can steel rebars be welded or spliced together?
- Yes, steel rebars can be welded or spliced together. Welding is a common method used to join steel rebars together. It involves heating the rebars to a high temperature and then using a welding electrode to melt the steel and create a strong bond between the rebars. Welding is often used in construction projects where a continuous reinforcement is required. Splicing, on the other hand, involves connecting two rebars using mechanical connectors or couplers. These connectors are designed to provide a strong and reliable connection between the rebars. Splicing is often used when rebars need to be extended or when there is a need to join different rebars together. Both welding and splicing methods have their advantages and disadvantages. Welding provides a continuous reinforcement and creates a strong bond between the rebars, but it requires skilled labor and can be time-consuming. Splicing, on the other hand, is quicker and easier to perform, but it may result in a slight reduction in the overall strength of the reinforcement. It is important to note that the use of welding or splicing for steel rebars should comply with the relevant codes and standards, as well as be approved by the structural engineer or the responsible authority.
- Q: What are the advantages of using composite steel rebars?
- There are several advantages of using composite steel rebars. Firstly, composite steel rebars offer higher tensile strength compared to traditional steel rebars, making them more durable and resistant to deformation. Secondly, they have a lower coefficient of thermal expansion, reducing the risk of cracking and improving long-term performance. Additionally, composite steel rebars are corrosion-resistant, ensuring a longer lifespan and lower maintenance costs. Furthermore, these rebars are lighter in weight, making them easier to handle and transport. Lastly, composite steel rebars can be easily fabricated and installed, allowing for greater design flexibility and faster construction.
- Q: What are the benefits of using stainless steel rebars?
- There are several benefits of using stainless steel rebars in construction projects. Firstly, stainless steel rebars offer excellent corrosion resistance. This is particularly important in environments with high humidity, coastal areas, or projects where the concrete will be exposed to water or chemicals. Unlike traditional carbon steel rebars, stainless steel rebars do not rust or corrode easily, ensuring the long-term integrity and durability of the structure. Secondly, stainless steel rebars have a higher tensile strength compared to carbon steel rebars. This means that they can withstand greater forces and stresses without deforming or breaking. This makes stainless steel rebars ideal for structures that require high load-bearing capacity, such as bridges, parking garages, and high-rise buildings. Furthermore, stainless steel rebars have a low thermal expansion coefficient. This means that they do not expand or contract significantly with changes in temperature. This property helps to minimize cracking and structural damage due to thermal stresses, ensuring the longevity and stability of the concrete structure. In addition to their mechanical properties, stainless steel rebars are also aesthetically pleasing. With their sleek and shiny appearance, stainless steel rebars can enhance the visual appeal of architectural elements such as exposed concrete walls or features in bridges and buildings. Lastly, stainless steel rebars are environmentally friendly. They are 100% recyclable, making them a sustainable choice for construction projects. By using stainless steel rebars, builders and engineers can contribute to reducing the carbon footprint and promoting a greener construction industry. Overall, the benefits of using stainless steel rebars include superior corrosion resistance, high tensile strength, low thermal expansion, aesthetic appeal, and environmental sustainability. These advantages make stainless steel rebars a preferred choice for various construction applications, providing long-lasting and reliable reinforcement for concrete structures.
- Q: How are steel rebars spliced or connected in construction joints?
- Various methods are used to splice or connect steel rebars in construction joints, ensuring the integrity and strength of reinforced concrete. A common method is lap splicing, where rebars are overlapped and then mechanically connected or tied together with steel wires or couplers. The required overlap length for lap splicing depends on the rebar diameter and design specifications, often specified as a multiple of the diameter. This length guarantees efficient load transfer and prevents potential failures at the connection point. Mechanical couplers offer an alternative method for splicing rebars. These pre-fabricated devices securely connect two rebars, eliminating the need for lap splicing and providing a more precise and reliable connection. Mechanical couplers are particularly useful when dealing with larger rebar sizes or when long lap lengths are not feasible. In certain cases, welded splicing may be used. This method involves welding the ends of rebars together, creating a solid and continuous connection. Welded splicing is commonly employed when dealing with larger diameter rebars and higher load requirements. However, it is crucial to adhere to proper welding techniques and practices to maintain the connection's integrity. Overall, the splicing or connection of steel rebars in construction joints is a crucial aspect of reinforced concrete construction. It ensures that rebars function as continuous reinforcement, enabling structures to effectively resist applied loads. The choice of splicing method depends on factors such as rebar size, design specifications, and project requirements.
- Q: How are steel rebars bent during construction?
- Specialized tools and equipment are utilized during construction to bend steel rebars. In order to ensure accuracy and meet the required specifications, the process involves multiple steps. Initially, rebars are selected based on the project's design and structural requirements. These rebars are typically composed of carbon steel and are available in various sizes and lengths. Initially, they are straight and must be bent to the specific shape and dimensions needed for construction. To accomplish this, construction workers employ either a bending machine or a hydraulic bender. These machines possess rollers or dies that exert pressure on the rebar, resulting in the desired shape. The machine is adjusted to the desired angle and radius of the bend. Before initiating the bending process, the rebars are marked with measurements and reference points to guarantee precision. The operator then places the rebar into the bending machine, aligning it with the reference points. Activation of the machine causes the rollers or dies to apply force gradually, bending the rebar to the desired shape. For more intricate bends or shapes, multiple bends might be necessary. In such cases, the rebar is bent incrementally, and the operator adjusts the machine after each bend to achieve the desired shape. It is crucial to recognize that rebars possess specific bending limits to prevent breakage or loss of structural integrity. Construction workers must adhere to these limits and ensure that the rebars are not over-bent, as this could compromise the strength and safety of the structure. Overall, the process of bending steel rebars during construction involves employing specialized equipment, precise measurements, and skilled operators to achieve the required shapes and dimensions for the project.
- Q: What is the process of removing rust from steel rebars?
- There are several steps involved in the process of removing rust from steel rebars. Firstly, inspect and assess the rust damage on the rebars. Determine whether the rust is superficial or deeply penetrated and evaluate the overall structural integrity. Before starting the rust removal process, ensure that you have the appropriate personal protective equipment (PPE) on, such as gloves, goggles, and a respirator. This is necessary to protect yourself from any harmful chemicals or debris that may be generated. To clean the surface of the rusted rebars, use a wire brush or a grinder with a brush attachment. This will help remove loose rust, dirt, and other debris. Make sure to thoroughly clean the surface before proceeding. Apply a rust converter or rust remover solution to the rusted areas of the rebar. These solutions contain chemicals that react with the rust, either converting it into a stable compound or dissolving it completely. Follow the manufacturer's instructions for the specific product being used. If the rust has not completely dissolved or converted after the chemical treatment, mechanical methods may be required. This can involve sanding the surface with sandpaper or using a wire brush to scrub off the remaining rust. Once the rust has been removed, rinse the rebars thoroughly with clean water to remove any residual chemicals or debris. Allow the rebars to dry completely before applying any further treatment or protective coatings. To prevent future rusting, it is important to apply a protective coating or paint to the rebars. This acts as a barrier against moisture and air, which are the main causes of rust formation. Choose a high-quality rust-resistant primer and paint specifically designed for steel reinforcement bars. It should be noted that removing rust from steel rebars requires expertise and adherence to safety precautions. In some cases, severe rust damage may require professional assistance or even replacement of the affected rebars.
- Q: How do steel rebars contribute to sustainable construction?
- Steel rebars contribute to sustainable construction in several ways. Firstly, steel rebars are highly durable and have a long lifespan, which means they do not need to be replaced frequently, reducing the use of resources and waste generation. Additionally, steel rebars can be easily recycled at the end of their life, minimizing their environmental impact and saving energy compared to producing new steel. Furthermore, steel rebars provide strength and structural integrity to concrete, reducing the need for additional materials and allowing for the construction of more efficient and sustainable structures.
- Q: What is the role of steel rebars in ensuring occupant safety?
- Various structures, particularly buildings and infrastructure, rely on steel rebars to ensure occupant safety. These reinforced steel bars are commonly used in concrete construction to strengthen and prolong the lifespan of the structure. Ultimately, this safeguards the individuals residing or working within these structures. Steel rebars have a primary function of providing structural reinforcement to concrete elements like columns, beams, and slabs. By incorporating rebars into the concrete, the overall load-bearing capacity of the structure is greatly increased. This allows it to endure external forces and loads, significantly reducing the risk of collapse or structural failure that could harm the occupants. During seismic events, such as earthquakes, steel rebars play a crucial role in dissipating and distributing the energy exerted on the structure. The ductility and tensile strength of steel enable it to absorb and distribute seismic forces, minimizing the chances of a sudden structural failure. Consequently, occupants are protected from potential hazards associated with seismic activity. Additionally, steel rebars enhance the fire resistance of concrete structures. While concrete itself possesses good fire-resistant properties, the inclusion of steel rebars further strengthens this resistance. Steel has a high melting point and low thermal conductivity compared to other materials. This means that steel rebars can withstand high temperatures for an extended period, ensuring the building's structural integrity during a fire and providing occupants with a safe evacuation route. Furthermore, steel rebars contribute to the long-term durability and maintenance of the structure. They prevent cracks and minimize the effects of corrosion, maintaining the concrete's structural integrity over time. This ensures that occupants are not exposed to potential hazards caused by structural deterioration. In summary, the role of steel rebars in ensuring occupant safety is essential. They provide structural reinforcement, increase load-bearing capacity, enhance fire resistance, and contribute to the long-term durability of a structure. By incorporating steel rebars into concrete construction, the risk of collapse, structural failure, and other potential hazards is significantly reduced, ultimately creating a safe environment for occupants.
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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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