Deformed Bars With Material Grade HRB400/500
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t
- Supply Capability:
- 20000 m.t/month
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Quality Product, Order Online Tracking, Timely Delivery
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Specification
Standard:
ASTM,GB
Technique:
Hot Rolled
Shape:
Round
Surface Treatment:
Black
Steel Grade:
HRB400
Thickness:
6mm-32mm
Length:
12m/pc
Net Weight:
2mt/bundle
OKorder is offering Deformed Steel Bar with high quality 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.
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
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.
Product Applications:
Deformed Steel Bar with high quality 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 with high quality 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 | HRB400 | |
Diameter | 10mm-32mm | ||
Length | 6M, 12M | ||
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:
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 | |||||
FAQ:
Q1: Why buy Materials & Equipment from OKorder.com?
A1: All products offered by OKorder.com are carefully selected from China's most reliable manufacturing enterprises. Through its ISO certifications, OKorder.com adheres to the highest standards and a commitment to supply chain safety and customer satisfaction.
Q2: How do you 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: What is the normal tolerance of your steel products ?
A3: Normally 1%-3%, but we can also produce the goods according to the customers' requests
Q4:What's your payment terms ?
A4:Mostly,we collect the money by T/T and LC at sight . We also accept time LC at 90/120 days sight.
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- Q: What are the guidelines for proper storage and transportation of steel rebars?
- The guidelines for proper storage and transportation of steel rebars are essential to ensure their integrity and quality. Here are some important guidelines to follow: 1. Storage: Steel rebars should be stored in a clean, dry, and well-ventilated area to prevent corrosion. They should be placed on a flat surface to avoid distortion or bending. Stacking should be limited to prevent excessive weight on the lower rebars, which can lead to deformation. 2. Protection: Steel rebars should be protected from exposure to moisture, rain, and direct sunlight. They should be covered with a waterproof tarp or plastic sheeting to prevent rusting. Rust can weaken the rebars and compromise their structural integrity. 3. Separation: Different sizes and grades of rebars should be stored separately to avoid confusion and ensure easy access. Additionally, rebars should be kept away from other materials that can cause damage or contamination. 4. Handling: When handling steel rebars, proper lifting techniques should be employed. Forklifts or cranes with appropriate lifting equipment should be used to prevent damage or injuries. The rebars should not be dragged or dropped, as this can cause deformation or cracking. 5. Transportation: During transportation, steel rebars should be secured properly to prevent shifting or movement that can lead to damage. Adequate cushioning materials, such as wooden blocks or rubber pads, should be used to minimize vibration and impact. Additionally, rebars should be covered to protect them from road debris and adverse weather conditions. 6. Documentation: Proper documentation is necessary for tracking the origin, size, and grade of the rebars. This information helps in ensuring compliance with industry standards and quality control measures. By adhering to these guidelines, the risk of damage, deformation, and corrosion to steel rebars during storage and transportation can be significantly reduced. This ensures that the rebars maintain their structural integrity and are fit for use in construction projects.
- Q: How do steel rebars contribute to the overall seismic performance of a building?
- Steel rebars contribute to the overall seismic performance of a building by providing strength, ductility, and flexibility. They enhance the structural integrity of the building, resisting the forces generated during an earthquake. The rebars are embedded in the concrete, reinforcing it and improving its tensile strength. This reinforcement helps in distributing the seismic forces more evenly throughout the structure, reducing the chances of collapse or significant damage. Additionally, the ductility of steel rebars allows them to elongate and deform under stress, absorbing and dissipating energy from seismic waves, thus protecting the building and its occupants.
- Q: What are the different types of steel rebars used in tunnel construction?
- Tunnel construction incorporates a variety of steel rebars, each possessing distinct properties and advantages. 1. Carbon Steel Rebars: These rebars, widely utilized in tunnel construction, boast exceptional strength and durability, rendering them suitable for rigorous applications. Additionally, they offer a cost-effective solution, making them a favored choice for numerous tunnel projects. 2. Stainless Steel Rebars: Tunnel environments exposed to elevated moisture levels, chemicals, or saltwater benefit from stainless steel rebars, which possess corrosion-resistant qualities. Compared to carbon steel rebars, they have a longer lifespan, ultimately reducing maintenance and replacement expenses. 3. Epoxy-Coated Rebars: Epoxy-coated rebars, comprising carbon steel rebars coated with an epoxy layer, provide additional protection against corrosion. As a result, they are well-suited for tunnels situated in harsh environments or those with high chloride content in the soil or water. 4. Galvanized Rebars: To safeguard against corrosion, carbon steel rebars undergo a zinc coating process, resulting in galvanized rebars. They find common use in tunnels where moisture and water exposure are significant concerns. Galvanized rebars exhibit durability and are relatively cost-effective. 5. Fiber-Reinforced Polymer (FRP) Rebars: FRP rebars, composed of composite materials such as fiberglass and resin, deliver benefits such as lightweight construction, corrosion resistance, and an exceptional strength-to-weight ratio. They prove particularly valuable in tunnels where weight reduction is essential, such as in soft ground conditions or when the tunnel structure has load-bearing capacity limitations. It is crucial to consider various factors, including project requirements, environmental conditions, and budgetary constraints, when selecting steel rebars for tunnel construction. Consulting with structural engineers and experts is imperative to determine the most suitable rebars for a specific tunnel project.
- Q: What is the average lifespan of a reinforced concrete structure with steel rebars?
- The lifespan of reinforced concrete structures with steel rebars can differ based on several factors, such as construction quality, maintenance, exposure to environmental conditions, and patterns of usage. However, when designed, built, and maintained properly, these structures can last for 50 to 100 years or even longer. Reinforced concrete structures are renowned for their durability and strength, owing to the combination of concrete and steel reinforcement. Concrete provides compressive strength, while steel rebars offer tensile strength, making the structure resistant to various loads and forces. Yet, as time passes, reinforced concrete structures may deteriorate due to factors like moisture exposure, chemical exposure, temperature fluctuations, and loading conditions. These factors can lead to corrosion of the steel rebars, which is a common concern for the longevity of such structures. Corrosion occurs when moisture and oxygen infiltrate the concrete, causing the steel rebars to rust. This rusting process can result in the expansion of the steel rebars, leading to cracks in the concrete and further accelerating the structure's deterioration. To mitigate the effects of corrosion and extend the lifespan of reinforced concrete structures, several measures can be taken. These measures encompass using high-quality concrete and steel rebars, applying protective coatings, implementing effective drainage systems, and conducting regular inspections and maintenance. With proper maintenance and care, reinforced concrete structures can surpass their average lifespan. Nevertheless, it is crucial to acknowledge that the lifespan can vary depending on specific circumstances and conditions. Therefore, it is essential to consult structural engineers and industry experts to evaluate and determine the expected lifespan of a particular reinforced concrete structure.
- Q: What are the different types of steel rebars used in foundation construction?
- Foundation construction commonly utilizes various types of steel rebars. These include: 1. Mild Steel Rebars, also known as black bars, are the most frequently employed in foundation construction. They possess a low carbon content and are easy to handle. Mild steel rebars offer satisfactory tensile strength and are cost-effective. 2. High Yield Strength Rebars possess a higher carbon content and undergo heat treatment to enhance their strength. They are commonly applied in areas requiring additional strength, such as high-rise buildings or seismic zones. High yield strength rebars exhibit superior resistance against tensile and compressive forces. 3. Epoxy-Coated Rebars are coated with epoxy resin to safeguard them against corrosion. They are often utilized in areas where the foundation is exposed to moisture or chemicals, such as marine or industrial environments. The epoxy coating acts as a barrier, preventing water and other corrosive substances from reaching the steel and causing rust. 4. Galvanized Rebars are coated with a layer of zinc to shield them from corrosion. The zinc coating provides excellent resistance against moisture and chemicals, making galvanized rebars suitable for use in high humidity areas or in concrete containing chloride ions. They are frequently employed in coastal regions or structures like bridges and parking garages. 5. Stainless Steel Rebars possess high corrosion resistance and are implemented in environments where other types of rebars may fail due to corrosion. They are commonly utilized in structures exposed to aggressive environments, such as chemical plants or wastewater treatment facilities. Stainless steel rebars are also employed in regions with a high risk of corrosion, such as coastal or humid areas. In conclusion, the selection of steel rebars for foundation construction depends on factors such as project requirements, environmental conditions, and the desired level of corrosion resistance. It is crucial to choose the appropriate type of rebar to ensure the durability and strength of the foundation.
- Q: How are steel rebars classified based on their shape?
- Steel rebars are classified based on their shape into different categories such as plain round bars, deformed bars, and ribbed bars.
- 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: Can steel rebars be used in structures with high chemical resistance requirements?
- Steel rebars can be used in structures with high chemical resistance requirements, but it is important to consider the specific chemical environment in which the structure will be exposed. While steel rebars are generally resistant to many common chemicals, certain aggressive chemical substances, such as acids or alkaline solutions, can cause corrosion and degradation of the rebar over time. In such cases, it may be necessary to use alternative materials like stainless steel rebars or fiber-reinforced polymer (FRP) rebars, which possess superior resistance to chemical attack. Additionally, proper design, construction, and maintenance practices should be implemented to mitigate the effects of chemical exposure on steel rebars. Factors such as the type and concentration of chemicals, temperature, humidity, and exposure duration should all be carefully considered to determine the suitability of steel rebars for a structure with high chemical resistance requirements. Consulting with a structural engineer or corrosion specialist is recommended to ensure the best choice of materials for the specific chemical environment.
- Q: How do steel rebars affect the overall cost of maintenance in a structure?
- Steel rebars can have a significant impact on the overall cost of maintenance in a structure. The use of steel rebars enhances the structural integrity and durability of the building, reducing the risk of structural failures and minimizing maintenance requirements. Steel rebars help to reinforce the concrete, making the structure more resistant to cracks, corrosion, and other forms of damage. By preventing or delaying these issues, the overall cost of maintenance, repairs, and replacements is reduced over the lifespan of the structure.
- Q: Can steel rebars be used in precast concrete applications?
- Yes, steel rebars can be used in precast concrete applications. Precast concrete refers to a construction method where concrete elements, such as walls, slabs, or beams, are cast in a controlled environment before being transported to the construction site for installation. Steel rebars, which are typically made of carbon steel and have ribs on their surface to provide better adhesion to the concrete, are commonly used to reinforce precast concrete elements. The use of steel rebars in precast concrete applications offers several advantages. Firstly, the presence of rebars helps to increase the overall strength and durability of the precast concrete elements, making them capable of withstanding higher loads and reducing the risk of structural failure. Additionally, rebars also enhance the resistance of the precast elements to cracking and shrinkage, ensuring better long-term performance. Moreover, steel rebars facilitate the proper transfer of tensile forces within the precast concrete elements. While concrete has excellent compressive strength, it is relatively weak in tension. By incorporating rebars into the precast elements, the tensile forces generated during service can be effectively absorbed by the rebars, preventing cracks and ensuring the structural integrity of the element. Furthermore, steel rebars offer flexibility in design and construction. Precast concrete elements can be manufactured in a wide range of shapes and sizes to meet specific project requirements, and the inclusion of rebars allows for greater design freedom. It enables the creation of complex and intricate precast elements that can be customized to fit various architectural and structural designs. In conclusion, steel rebars are essential components in precast concrete applications. Their inclusion significantly enhances the strength, durability, and performance of precast concrete elements. With the ability to resist tensile forces and provide structural integrity, steel rebars play a vital role in ensuring the safety and longevity of precast concrete structures.
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Deformed Bars With Material Grade HRB400/500
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t
- Supply Capability:
- 20000 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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