Hot Rolled Deformed Bar ou Reinforcement Bar 6mm-50mm
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 100000 m.t./month
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Product Description:
OKorder is offering high quality Hot Rolled Steel I-Beams 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 Steel I-Beams 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 soon can we receive the product after purchase?
A1: 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.
Q2: What makes stainless steel stainless?
A2: 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.
Q3: Can stainless steel rust?
A3: 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.
- Q:What are steel rebars made of?
- Steel rebars are made of carbon steel, which is an alloy of iron and carbon.
- Q:How do steel rebars resist seismic forces?
- Steel rebars resist seismic forces by providing reinforcement to concrete structures. During an earthquake, the rebars act as a backbone, absorbing and distributing the seismic forces throughout the structure. The high tensile strength of steel allows it to withstand the intense stress and deformation caused by seismic activity, ensuring the durability and stability of the building. By preventing excessive cracking and failure, steel rebars enhance the overall seismic performance of the structure, thus increasing its resistance to seismic forces.
- Q:What are the guidelines for preventing steel rebars from rusting during construction delays?
- In order to prevent steel rebars from rusting during construction delays, it is crucial to adhere to the following guidelines: 1. Adequate Storage: Rebars should be stored in a covered and dry area, away from moisture and direct sunlight. It is important to ensure that the storage area is well-ventilated to avoid condensation. 2. Use of VCI (Volatile Corrosion Inhibitor) Products: Incorporate VCI products such as VCI paper, films, or emitters. These products release chemicals that inhibit corrosion and create a protective layer on the rebars, preventing rust formation. 3. Proper Packaging: If rebars need to be transported or stored for a long period, it is essential to package them correctly. Wrap the rebars tightly with VCI paper or plastic sheets and secure the packaging with tape to prevent moisture from seeping in. 4. Dehumidification: Install dehumidifiers in areas where the rebars are stored to reduce humidity levels. This will help maintain a dry environment and prevent condensation on the rebars. 5. Regular Inspection: Conduct periodic inspections to check for any signs of rust formation on the rebars. If rust is detected, it should be promptly cleaned and treated with anti-corrosion coatings to prevent further damage. 6. Application of Protective Coatings: Apply anti-corrosion coatings on the rebars to provide an additional layer of protection. The choice of coating, whether epoxy-based or zinc-based, should depend on the environmental conditions and project requirements. 7. Eliminate Standing Water: Make sure there is no standing water in the vicinity of the rebars, as it can expedite the rusting process. Implement proper drainage systems to prevent water accumulation. 8. Monitoring: Regularly monitor the environmental conditions, including temperature and humidity levels, to identify any potential risks of rust formation. Adjust the storage conditions accordingly, if necessary. By adhering to these guidelines, construction delays can be effectively managed, and the steel rebars can be safeguarded from rust formation, ensuring the structural integrity of the project.
- Q:What is the maximum spacing allowed between steel rebars in concrete?
- The maximum spacing allowed between steel rebars in concrete varies depending on the specific project requirements and local building codes. However, as a general guideline, the maximum spacing is typically limited to three times the thickness of the concrete cover, which is the distance between the outer surface of the concrete and the nearest rebar. This ensures proper reinforcement and structural integrity of the concrete.
- Q:What are the advantages of using epoxy-coated steel rebars?
- Using epoxy-coated steel rebars in construction projects has several advantages. Firstly, the epoxy coating provides excellent corrosion resistance, protecting the rebars from moisture, oxygen, and other environmental elements. This extends their lifespan and enhances the durability of the structure. Secondly, epoxy-coated steel rebars offer improved bonding strength due to their rough surface. This enhances the adhesive properties between the rebar and the concrete, resulting in better load transfer and strengthening the structure. It also reduces cracking and improves the overall structural integrity. Another advantage is their ability to resist chemical attack. The epoxy coating acts as a barrier, preventing direct contact between the steel and chemicals in environments like wastewater treatment plants or industrial facilities. This helps maintain the structural integrity over time. Additionally, epoxy-coated steel rebars are easier to handle and install. The smoothness of the coating reduces friction, making it easier to position and place the rebars accurately. This simplifies the construction process, increases productivity, and reduces labor costs. Lastly, epoxy-coated steel rebars offer aesthetic benefits. The coating can be customized to different colors, allowing for better visual integration with architectural designs. This is particularly useful in projects where the rebars are visible, such as bridges or artistic structures. In conclusion, using epoxy-coated steel rebars provides corrosion resistance, improved bonding strength, chemical resistance, easier handling and installation, and aesthetic benefits. This leads to enhanced durability, reduced maintenance costs, and improved structural performance in construction projects.
- Q:What are the different types of steel rebars used in marine construction?
- The different types of steel rebars used in marine construction include epoxy-coated rebars, stainless steel rebars, and galvanized rebars. Epoxy-coated rebars are commonly used in marine environments due to their corrosion resistance properties. Stainless steel rebars are also used for their excellent corrosion resistance and strength. Galvanized rebars, which are coated with a layer of zinc, are another option for marine construction as they provide good protection against corrosion.
- Q:What is the corrosion resistance of steel rebars?
- The surface of steel rebars forms a protective layer, known as a passive film, which provides excellent corrosion resistance. This film is created when the steel interacts with the surrounding environment. By acting as a barrier, the passive film prevents oxygen and moisture from reaching the steel, thus inhibiting corrosion. There are various factors that contribute to the corrosion resistance of steel rebars. For example, the presence of alloying elements like chromium, nickel, and molybdenum improves the formation and stability of the passive film, making the rebars more resistant to corrosion. Additionally, the composition and microstructure of the steel rebars play a crucial role in determining their resistance to corrosion. However, it is important to note that the corrosion resistance of steel rebars can be compromised under certain conditions. High levels of chlorides, such as those in marine environments or de-icing salts, can accelerate corrosion and reduce the effectiveness of the passive film. Similarly, exposure to acidic or alkaline environments can also negatively affect the corrosion resistance of steel rebars. To minimize the risk of corrosion, various protective measures can be taken. These include applying coatings or paints to the rebars, using corrosion inhibitors, or implementing cathodic protection systems. Regular inspection, maintenance, and proper design and construction practices are also essential to ensure the long-term corrosion resistance of steel rebars in different applications. In conclusion, the excellent corrosion resistance of steel rebars is due to the formation of a protective passive film. However, this resistance can be influenced by factors such as the environment, alloying elements, and microstructure. By implementing appropriate protective measures and maintenance practices, the corrosion resistance of steel rebars can be effectively maintained, ensuring their durability and structural integrity.
- Q:What is the role of steel rebars in preventing concrete cracking?
- The reinforcement of concrete structures is greatly aided by the use of steel rebars. These rebars are essential in preventing cracks from forming in the concrete and in improving its overall durability and strength. Concrete has a tendency to crack when subjected to tensile stress due to its low tensile strength. However, when steel rebars are embedded within the concrete, they act as a reinforcement by absorbing and dispersing these tensile forces throughout the structure. The inclusion of steel rebars in concrete is effective in counteracting the natural inclination of concrete to crack under tension. When a load is applied to the concrete, the rebars bear a significant portion of the tensile stress, preventing it from being concentrated solely on the concrete itself. This distribution of forces helps minimize the development and spread of cracks, ensuring the structural integrity of the concrete. Furthermore, steel rebars also contribute to the overall strength and durability of concrete structures. The combination of steel's high tensile strength and concrete's compressive strength results in reinforced concrete, which provides exceptional resistance against various external forces, such as bending, shear, and seismic loads. This additional strength makes the concrete less prone to cracking and enhances its ability to withstand heavy loads and environmental factors over time. In conclusion, steel rebars play a critical role in preventing concrete cracking by providing reinforcement, absorbing and dispersing tensile forces, and improving the overall strength and durability of concrete structures. Their presence greatly enhances the structural integrity and longevity of concrete, making it a dependable and extensively used construction material.
- 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:What are the different types of coatings available for protecting steel rebars?
- There are several types of coatings available for protecting steel rebars, including epoxy coatings, polyethylene encasement, zinc coatings, and fusion-bonded epoxy coatings. These coatings provide different levels of protection against corrosion, ensuring the longevity and durability of the steel rebars in various environments.
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Hot Rolled Deformed Bar ou Reinforcement Bar 6mm-50mm
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 100000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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