Hot Rolled Deformed Bar HRB400 or BS449 B500B
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 200000 m.t./month
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Product Description:
OKorder is offering Product Description:
OKorder is offering Hot Rolled Deformed Bar HRB400 or BS449 B500B 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.
Product 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
Product Advantages:
OKorder's Hot Rolled Deformed Bar HRB400 or BS449 B500B are durable, strong, and resist corrosion, exact size, regular package, chemical and mechanical properties are stable.
Main Product Features:
· Premium quality
· Prompt delivery & seaworthy packing (30 days after receiving deposit)
· Corrosion resistance
· Can be recycled and reused
· Mill test certification
· Professional Service
· Competitive pricing
Product Specifications:
Manufacture: Hot rolled
Grade: BS4449
Certificates: ISO, SGS, BV, CIQ
Diameter: 6mm,8mm,10mm,12mm,14mm,16mm,18mm,20mm,
22mm,25mm,28mm,32mm,36mm,40mm,50mm
Length: 6M, 9M,12M or as required
Packaging: Export packing, nude packing, bundled
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 |
FAQ:
Q1: How do we guarantee the quality of our products?
A1: 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.
Q2: What makes stainless steel stainless?
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.
Q3: What makes stainless steel stainless?
A3: Stainless steel must contain at least 10.5 % chromium. It is this element that reacts with the oxygen in the air to form a complex chrome-oxide surface layer that is invisible but strong enough to prevent further oxygen from "staining" (rusting) the surface. Higher levels of chromium and the addition of other alloying elements such as nickel and molybdenum enhance this surface layer and improve the corrosion resistance of the stainless material.
- Q: How do steel rebars affect the overall cost-effectiveness of a structure?
- Steel rebars play a crucial role in enhancing the overall cost-effectiveness of a structure. These reinforcement bars are widely used in construction projects to provide strength, durability, and stability to concrete structures. By incorporating steel rebars, the lifespan of a structure is significantly increased, reducing the need for frequent repairs and maintenance, thereby lowering long-term costs. One of the key benefits of using steel rebars is their ability to reinforce concrete, making it capable of withstanding heavy loads and forces. This reinforcement prevents cracks and structural failures, ensuring the longevity of the structure. As a result, the need for costly repairs and replacements is minimized, resulting in cost savings over the lifespan of the structure. Moreover, steel rebars enhance the overall structural integrity of a building, reducing the risk of damage caused by natural disasters such as earthquakes and high winds. This increased resilience not only saves lives but also reduces the financial burden of rebuilding or repairing a damaged structure. In addition to their strength and durability, steel rebars provide cost-effectiveness during construction itself. These bars can be prefabricated off-site, allowing for efficient and streamlined construction processes. This reduces labor costs, accelerates construction timelines, and minimizes material wastage, leading to overall cost savings. Furthermore, steel rebars can be recycled, making them an environmentally friendly choice. The recycling process not only reduces the demand for raw materials but also lowers production costs, contributing to the cost-effectiveness of a structure. In summary, steel rebars enhance the cost-effectiveness of a structure by increasing its longevity, reducing maintenance and repair costs, improving resilience to natural disasters, optimizing construction processes, and promoting environmental sustainability. By incorporating steel rebars into construction projects, developers and owners can maximize the return on investment while ensuring the safety and longevity of the structure.
- Q: What is the maximum length of a steel rebar?
- The maximum length of a steel rebar can vary depending on the specific requirements and manufacturing capabilities, but it is typically around 60 feet (18 meters).
- Q: How do steel rebars prevent concrete structures from spalling?
- The reinforcement and increased strength provided by steel rebars prevent spalling in concrete structures. Spalling occurs when the concrete surface cracks and breaks off due to internal pressure from factors like temperature changes, moisture, or structural loads. When steel rebars are embedded in the concrete, they act as a support system that evenly distributes applied loads throughout the structure. This prevents localized stress concentrations, which can cause spalling, by absorbing and dissipating the load. By reinforcing the concrete, rebars enhance its ability to withstand external forces and improve its tensile strength. Furthermore, steel rebars help control crack formation in the concrete. Concrete is a brittle material with low tensile strength, making it prone to cracking under stress. However, rebars hinder crack propagation by bridging them and transferring the stress to the surrounding concrete. This prevents the cracks from spreading and results in a more durable and resilient structure. Additionally, steel rebars protect against corrosion. Concrete's natural alkalinity forms a protective layer on the steel surface, preventing rusting. This alkaline environment acts as a barrier against corrosion, ensuring the rebars maintain their structural integrity over time. By avoiding corrosion, the rebars can continue to reinforce the concrete and prevent spalling. In conclusion, steel rebars are essential in preventing spalling in concrete structures by providing reinforcement, improving tensile strength, controlling crack formation, and protecting against corrosion. They enhance the stability and durability of the concrete, allowing it to withstand external pressures and maintain its integrity for an extended period.
- Q: Are there any disadvantages of using steel rebars?
- Steel rebars have several drawbacks that should be taken into consideration: 1. Vulnerability to corrosion: Moisture and oxygen can cause steel rebars to rust over time, compromising their structural integrity. This issue is particularly concerning in coastal areas with high humidity levels or structures exposed to harsh weather conditions. 2. Heavy weight: Compared to alternatives like fiberglass or carbon fiber reinforced polymers, steel rebars are relatively heavy. This poses challenges during transportation and installation, especially in large-scale construction projects that require heavy machinery for moving and positioning the rebars. 3. Higher cost: Steel rebars are generally more expensive than other reinforcement materials, which can drive up the overall cost of a construction project. Moreover, the price of steel is subject to market fluctuations, making it difficult to accurately estimate the budget for reinforcement materials. 4. Conductivity issues: Steel rebars have high heat and electrical conductivity, which can be problematic in structures requiring insulation or in areas with stringent electrical conductivity requirements. In such cases, additional insulation or grounding measures may be necessary, adding complexity and cost to the construction process. 5. Environmental impact: The production of steel rebars is energy-intensive and contributes to greenhouse gas emissions. The extraction and processing of iron ore for manufacturing steel rebars can have significant environmental effects such as deforestation, habitat destruction, and air and water pollution. Despite these disadvantages, steel rebars continue to be widely used in construction due to their high tensile strength, durability, and proven track record in providing structural support. Efforts are ongoing to address these drawbacks through advancements in corrosion-resistant coatings and the exploration of alternative reinforcement materials.
- Q: How do steel rebars affect the seismic performance of a structure?
- The seismic performance of a structure is significantly impacted by steel rebars. Steel rebars have the primary function of reinforcing concrete and increasing its strength and ductility. This reinforcement is essential in reducing the damaging effects of seismic activity. When an earthquake occurs, a structure is subjected to different forces, such as lateral forces, shear forces, and bending moments. These forces can cause deformation, cracking, or even collapse of the structure. However, steel rebars provide resistance against these forces and help maintain the integrity of the structure. By increasing the tensile strength of concrete, steel rebars enhance its ability to withstand the lateral movement caused by seismic waves. This allows for a more even distribution of forces, minimizing the formation and propagation of cracks and reducing the risk of structural failure. Additionally, steel rebars improve the ductility of the structure. Ductility refers to a material's ability to deform without breaking. During an earthquake, the shaking of the ground can cause the structure to deform and oscillate. Steel rebars enable the structure to absorb and dissipate energy, decreasing the chances of sudden failure. This ductile behavior is particularly important in areas prone to earthquakes as it provides warning signs of potential structural distress, allowing occupants to evacuate safely. Moreover, steel rebars can be strategically placed in critical areas of the structure, such as the beam-column joints, which are highly vulnerable during seismic events. Proper detailing and configuration of rebars in these areas can greatly enhance seismic performance by strengthening connections and preventing premature failure. In conclusion, steel rebars play a critical role in improving the seismic performance of a structure. They enhance the tensile strength of concrete, improve ductility, reduce crack formation, and strengthen critical areas. These factors collectively contribute to a more resilient structure that can better withstand and absorb the forces generated during an earthquake, ultimately ensuring the safety and stability of the building and its occupants.
- Q: What is the recommended diameter of steel rebars for beam reinforcement?
- The recommended diameter of steel rebars for beam reinforcement typically ranges from 10mm to 25mm, depending on the specific design requirements and load conditions of the beam.
- Q: What is hot rolled coil? Hot rolled coil relative to thread steel and other steel, is not considered a higher point?
- A hot rolled coil is a flat, flat material that is rolled by a billet at a certain temperature. The thread steel is a long piece of steel pulled out at a certain temperature. There is no high or no advanced problem between the two.
- Q: How do steel rebars resist buckling in concrete structures?
- Steel rebars resist buckling in concrete structures due to their high strength and stiffness. When concrete is subjected to compressive forces, it tends to expand laterally, leading to the development of cracks. These cracks weaken the concrete and reduce its ability to bear loads. However, by introducing steel rebars into the concrete, the tensile strength of the structure is greatly enhanced. Steel rebars, which are made of high-strength steel alloys, have exceptional tensile strength. When concrete is subjected to compressive forces, the rebars bear the tensile stresses that occur within the structure. The rebars act as reinforcement, preventing the concrete from cracking and providing additional support to the structure. Moreover, the presence of rebars helps to distribute the compressive forces more evenly throughout the concrete. This ensures that the load is spread over a larger area, reducing the likelihood of localized buckling. The rebars effectively increase the overall stiffness of the structure, making it more resistant to buckling and deformation. Additionally, the bond between the steel rebars and the surrounding concrete plays a crucial role in resisting buckling. The rough surface of the rebars allows for enhanced adhesion with the concrete, creating a strong bond. This bond transfers the applied load from the concrete to the rebars, preventing the concrete from buckling and maintaining the structural integrity of the system. Overall, the combination of high tensile strength, improved load distribution, and strong bond with the concrete enables steel rebars to resist buckling in concrete structures. The presence of rebars significantly enhances the structural performance, ensuring the safety and durability of the concrete structure.
- Q: Can steel rebars be used in structures with high resistance to UV radiation?
- No, steel rebars cannot be used in structures with high resistance to UV radiation as steel is susceptible to corrosion when exposed to UV radiation for extended periods of time.
- Q: How do steel rebars prevent the concrete from cracking under tension?
- Steel rebars prevent concrete from cracking under tension by providing reinforcement and increasing the tensile strength of the concrete. When the concrete undergoes tensile stress, which is the force that tends to pull it apart, the rebars distribute the stress across a larger area and absorb some of the tension. This helps to prevent the concrete from cracking by reducing the amount of stress applied to any one area and providing additional strength to withstand the forces acting upon it.
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Hot Rolled Deformed Bar HRB400 or BS449 B500B
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 200000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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