55QHG deformed steel bar for construction
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10000 m.t.
- Supply Capability:
- 100000 m.t./month
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Specification
OKorder is offering high quality 55QHG deformed steel bar for construction 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:
55QHG deformed steel bar for construction 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 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
· Professional Service
· Competitive pricing
Product Specifications:
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 |
1.Diameter:6mm-32mm
2.Material:BS4449 Grade 460B,ASTM A615 GR60
3.Length:6-12meters
1. Length: 6m-12m as standard.
2. Reputation first, best competitive price, high quality, quotes price promptly and confirm the delivery on time!
3. Application : Used for housing construction.
4. PRICE: Keep lower operating costs so as to offer competitive price for our clients.
5. Minimum Order Quantity: 300 MTS as per size.
6. Invoicing: Actual or Theoretical Weight Basis as buyer’s request.
7. Payment terms: TT payment in advance or irrevocable LC at sight.
8. Delivery time: 25-30 days after we receive your TT payment at sight
FAQ:
Q1: Why buy Materials & Equipment from OKorder.com?
A1: All products offered byOKorder.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 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.
- Q: How do steel rebars affect the overall workability of concrete?
- Steel rebars play a crucial role in enhancing the overall workability of concrete. Workability refers to the ease with which concrete can be mixed, placed, compacted, and finished to achieve the desired shape and surface. When steel rebars are incorporated into concrete, they provide reinforcement and improve its structural strength. The rebars act as a skeleton within the concrete matrix and help distribute the loads and stresses evenly throughout the structure. This reinforcement prevents cracking, enhances the structural integrity, and increases the load-bearing capacity of the concrete. Moreover, steel rebars also help control the shrinkage and cracking of concrete. During the curing process, concrete tends to shrink, which can result in the formation of cracks. The presence of rebars mitigates this issue by counteracting the tensile forces that cause shrinkage and cracking, thus improving the overall durability of the concrete. In addition to their structural benefits, steel rebars also facilitate the workability of concrete during the construction process. The rebars act as guides for proper concrete placement and help prevent segregation or separation of the mix. They ensure that the concrete is properly compacted and eliminates potential voids or air pockets, resulting in a more homogeneous and uniform mixture. Furthermore, steel rebars provide stability and support to the concrete during its curing and hardening stages. They prevent deformation or sagging of the fresh concrete and help maintain its desired shape and form. This is particularly important for complex or intricate structures where precise shaping and positioning of the concrete is necessary. Overall, the inclusion of steel rebars positively affects the workability of concrete by enhancing its structural strength, mitigating shrinkage and cracking, facilitating proper placement and compaction, and providing stability during the curing process. The combination of concrete and steel rebars creates a durable and reliable construction material that can withstand various loads and environmental conditions.
- Q: What is the process of reinforcing concrete walls with steel rebars?
- The process of reinforcing concrete walls with steel rebars involves several steps. First, the design and placement of rebars are determined based on the structural requirements. Then, the concrete wall is prepared by cleaning and ensuring a strong bond with the rebars. Next, the rebars are cut and bent according to the specified dimensions and patterns. These rebars are then placed in the desired positions within the formwork, ensuring proper spacing and alignment. Once the rebars are in place, the concrete is poured, encapsulating the rebars and forming a solid structure. The concrete is allowed to cure and harden, creating a reinforced concrete wall that is stronger and more resistant to cracking or structural failure.
- Q: What is the impact of steel rebars on the aesthetics of a structure?
- The aesthetics of a structure can be affected by steel rebars in both positive and negative ways, depending on the project's design and execution. Steel rebars are crucial in providing structural integrity and strength to a building as they are an essential component of reinforced concrete. However, their visibility can sometimes be seen as a drawback from an aesthetic standpoint. In certain architectural designs, the presence of steel rebars is intentionally emphasized as part of the overall aesthetic concept. This is often observed in modern or industrial-style buildings, where exposed steel elements are celebrated for their raw, utilitarian appeal. In these cases, the rebars are left exposed, resulting in a visually striking and distinctive design feature that enhances the structure's character. On the other hand, in more traditional or refined architectural styles, the visibility of steel rebars can be considered unattractive and contrary to the desired aesthetic. In such situations, architects and designers often employ strategies to hide or minimize the appearance of rebars. This can be accomplished by embedding the rebars deeper into the concrete, using decorative cladding or finishes, or integrating them within architectural features such as columns or beams. It is important to note that the impact of steel rebars on aesthetics extends beyond their visibility. The quality of construction and the precision in placing and aligning the rebars can significantly influence the overall appearance of a structure. Poorly executed reinforcement work can result in uneven surfaces, bulges, or visible imperfections, all of which can detract from the desired aesthetic appeal. Ultimately, the impact of steel rebars on the aesthetics of a structure depends on the specific design intent, architectural style, and quality of execution. With careful planning and attention to detail, rebars can be integrated into the overall aesthetic vision of a building, either as an intentional design element or seamlessly integrated to maintain a clean and refined appearance.
- Q: Are steel rebars suitable for use in historical restoration projects?
- Depending on the specific requirements and circumstances, steel rebars may be appropriate for use in historical restoration projects. They possess high strength, durability, and the ability to effectively reinforce structures, making them a popular choice in modern construction and renovation endeavors. Nevertheless, it is crucial to consider the preservation and authenticity of the original structure when contemplating the utilization of steel rebars in historical restoration projects. Historical buildings often possess unique architectural features and materials that must be treated respectfully and preserved. In certain situations, the use of steel rebars may not be suitable, particularly if it compromises the historical integrity or visual appearance of the structure. This is particularly relevant for buildings with significant historical value or those protected by heritage regulations. If it is determined that steel rebars are necessary for structural reinforcement in a historical restoration project, it is vital to integrate them discreetly, minimizing their visual impact. This can be achieved by concealing them within the original materials or utilizing techniques that replicate the appearance of the original construction. In conclusion, while steel rebars offer structural advantages and durability, their use in historical restoration projects should be carefully evaluated to ensure they align with the preservation goals and requirements of the specific project. The preservation of historical authenticity should always be a priority in such endeavors.
- Q: What is the average lifespan of steel rebars in marine environments?
- The average lifespan of steel rebars in marine environments can vary depending on several factors. However, in general, steel rebars have a lifespan of around 50 to 100 years in marine environments. This estimate takes into account the corrosive nature of saltwater, which can accelerate the deterioration of steel structures. Additionally, factors such as the quality of the steel, the design and construction of the marine structure, and maintenance practices can also affect the lifespan of steel rebars. Regular inspections, protective coatings, and proper maintenance can help extend the life of steel rebars in marine environments.
- Q: Are there any health and safety concerns related to steel rebars?
- Yes, there are several health and safety concerns related to steel rebars. Firstly, handling and lifting steel rebars can pose risks of musculoskeletal injuries such as strains, sprains, and back injuries. These rebars are heavy and often require manual handling or the use of heavy machinery, which can increase the risk of accidents and injuries. Secondly, steel rebars are often coated with chemicals to prevent corrosion. These coatings can contain hazardous substances such as toxic metals or volatile organic compounds (VOCs). Exposure to these chemicals through inhaling fumes or direct contact with the skin can lead to health issues, including respiratory problems, skin irritation, and chemical burns. Furthermore, steel rebars are commonly used in construction sites, which can be hazardous environments. Workers may face risks of falling rebars, tripping over them, or being struck by them. Additionally, improper installation or positioning of steel rebars can compromise the structural integrity of the construction, potentially leading to accidents or collapses. To mitigate these health and safety concerns, it is important to provide appropriate training and personal protective equipment (PPE) to workers handling steel rebars. Employers should also enforce proper lifting techniques and safe work practices to prevent musculoskeletal injuries. Adequate ventilation systems and the use of respiratory protection can help in reducing exposure to hazardous chemicals. Lastly, regular inspections and adherence to construction regulations can ensure the proper placement and installation of steel rebars, minimizing the risk of accidents and structural failures.
- Q: Are there any specific guidelines for handling and storing steel rebars?
- To ensure the quality and prevent any damage or accidents, specific guidelines exist for handling and storing steel rebars. Some of these guidelines include the following: 1. Use appropriate lifting equipment, such as cranes or forklifts, to handle the rebars and prevent strain or damage. Lift the rebars from the center to maintain balance and stability. 2. Before storing or using steel rebars, inspect them for defects like bends, cracks, or rust. Discard or repair any damaged or defective rebars before use. 3. Store steel rebars in a dry and well-ventilated area to prevent moisture accumulation and corrosion. Keep them off the ground on a flat surface, such as wooden pallets or racks, to avoid contact with soil or water. Take care when stacking rebars to prevent deformation or distortion. 4. Store different sizes and types of rebars separately to avoid mixing or confusion during use. Label or color-code the rebars for easy identification and retrieval. 5. Protect steel rebars from extreme temperatures, sunlight, and chemicals. Cover them with plastic sheets or tarpaulins to prevent moisture, dust, and debris from settling. 6. Securely tie or bundle steel rebars using appropriate strapping or wire during transportation. Avoid any impact or vibration that could cause damage. 7. Provide training on proper handling and storage techniques for steel rebars. Ensure personnel are aware of the hazards associated with improper handling and equipped with personal protective equipment (PPE) like gloves, safety boots, and helmets. By following these guidelines, you can ensure the quality and longevity of steel rebars, reduce the risk of accidents, and maintain a safe working environment.
- Q: How are steel rebars protected from rusting?
- Steel rebars are protected from rusting through a process called corrosion prevention, which typically involves applying a protective coating or using corrosion inhibitors. The most common method is to coat rebars with epoxy or zinc, creating a barrier between the steel and the surrounding environment. Additionally, rebars can be embedded in concrete, which acts as a protective layer, preventing water and oxygen from reaching the steel and causing rust.
- Q: How do steel rebars affect the overall creep and shrinkage of concrete structures?
- Steel rebars have a significant influence on the overall creep and shrinkage of concrete structures. The presence of rebars helps to control and minimize the shrinkage of concrete by providing restraint and reducing the amount of drying shrinkage. Additionally, rebars contribute to the overall stiffness of the structure, decreasing the potential for creep deformation over time. Therefore, steel rebars play a crucial role in mitigating both creep and shrinkage in concrete structures, ensuring their stability and durability.
- Q: Are steel rebars susceptible to magnetism?
- Yes, steel rebars are susceptible to magnetism as they are made primarily of iron, which is a ferromagnetic material.
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55QHG deformed steel bar for construction
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10000 m.t.
- Supply Capability:
- 100000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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