Reinforcing Deformed Steel Bars with Grade HRB400
- 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
OKorder Financial Service
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Item specifice
OKorder is offering high quality Hot Rolled Rebars 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 Africa, 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..
Label: to be specified by customer, generally, each bundle has 1-2 labels
Product Advantages:
OKorder's Hot Rolled Rebars 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:
Manufacture: Hot rolled
Grade: HRB400 – HRB500
Certificates: ISO, SGS, BV, CIQ
Length: 6m – 12m, as per customer request
Packaging: Export packing, nude packing, bundled
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: 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 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.
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:How do steel rebars contribute to the overall energy efficiency of a building?
- Steel rebars contribute to the overall energy efficiency of a building by enhancing its structural integrity and reducing the need for excessive heating, cooling, and maintenance. The use of steel rebars in construction provides increased durability, which allows for longer building lifespan, reduced repairs, and lower energy consumption. Additionally, steel rebars can be recycled, reducing the environmental impact and energy required for construction materials.
- Q:How are steel rebars protected against chemical attacks?
- Corrosion protection is a process that shields steel rebars from chemical attacks. Various techniques and materials are utilized to prevent corrosive substances from harming the rebar. One method commonly employed is the application of protective coatings. These coatings, such as epoxy or zinc, create a barrier on the rebar's surface, obstructing corrosive substances from reaching the steel. Moreover, these coatings offer added protection against moisture and other environmental factors that contribute to corrosion. Corrosion inhibitors are another means of safeguarding the rebars. These chemicals can be added to the concrete mix or directly applied to the rebar. By forming a protective layer on the steel's surface, corrosion inhibitors impede the corrosion process. These inhibitors can be organic or inorganic compounds, targeting specific corrosion mechanisms. In certain cases, stainless steel rebars are used to protect against chemical attacks. Stainless steel possesses greater resistance to corrosion in comparison to regular steel rebars. The presence of chromium creates a passive layer on the steel's surface, guarding it against chemical reactions. Stainless steel rebars are frequently utilized in highly corrosive environments, such as marine structures or wastewater treatment plants. Regular maintenance and inspection play a crucial role in safeguarding steel rebars against chemical attacks. Any signs of damage or corrosion should be promptly addressed. Regular cleaning and removal of corrosive substances that accumulate on the rebars also aid in preventing chemical attacks. In conclusion, a combination of protective coatings, corrosion inhibitors, stainless steel rebars, and regular maintenance is essential for protecting steel rebars against chemical attacks. These measures prolong the rebars' lifespan and uphold the structural integrity of concrete structures.
- Q:What is the difference between epoxy-coated and galvanized steel rebars?
- Epoxy-coated steel rebars are reinforced steel bars that have been coated with an epoxy layer for added protection against corrosion. This coating acts as a barrier to prevent moisture and chemicals from reaching the steel, thereby extending its lifespan. On the other hand, galvanized steel rebars are steel bars that have been coated with a layer of zinc to prevent corrosion. The zinc coating acts as a sacrificial layer that corrodes instead of the steel, thereby protecting it from rust. The main difference between the two is the type of coating used, with epoxy providing more resistance to chemical corrosion, while galvanized coating offers better protection against atmospheric corrosion.
- Q:How are steel rebars protected against chemical attacks in concrete?
- Steel rebars are protected against chemical attacks in concrete by using different strategies such as using high-quality concrete with low permeability, adding corrosion inhibitors or protective coatings to the rebars, and ensuring proper concrete cover to prevent direct contact between the steel and aggressive chemicals.
- Q:What are the methods used for corrosion protection of steel rebars?
- There are several methods used for corrosion protection of steel rebars. 1. Coating: One common method is to apply a protective coating on the surface of the steel rebar. This coating acts as a barrier, preventing moisture and oxygen from reaching the steel surface and causing corrosion. Coatings can be applied using various techniques such as hot-dip galvanizing, epoxy coatings, or fusion-bonded epoxy coatings. 2. Cathodic Protection: Another method is cathodic protection, which involves the use of sacrificial anodes or impressed current systems. Sacrificial anodes are made of a more reactive metal (such as zinc or magnesium) that corrodes over time instead of the steel rebar. This ensures that the steel remains protected. Impressed current systems use an external power source to provide a protective current to the steel rebar, preventing corrosion. 3. Concrete cover: A simple but effective method is to provide a sufficient concrete cover over the steel rebar. The concrete acts as a physical barrier, shielding the steel from the environment. The thickness of the concrete cover is critical and should be designed according to specific standards to ensure adequate protection. 4. Inhibitors: Corrosion inhibitors can be added to the concrete mix or applied on the surface of the steel rebar. These inhibitors work by reducing the corrosive effects of moisture and oxygen on the steel surface. They can be organic or inorganic compounds that form a protective layer on the steel, inhibiting the corrosion process. 5. Proper design and construction practices: Lastly, proper design and construction practices can greatly contribute to corrosion protection. This includes avoiding the use of dissimilar metals that can cause galvanic corrosion, ensuring proper drainage to prevent water accumulation, and taking measures to minimize exposure to corrosive environments. It is important to note that a combination of these methods is often used to provide optimal corrosion protection for steel rebars, depending on the specific project requirements and environmental conditions.
- Q:How do steel rebars affect the overall construction cost of residential buildings?
- Steel rebars can significantly impact the overall construction cost of residential buildings. While rebars add strength and durability to the structure, they also contribute to increased material and labor expenses. The cost of purchasing and installing rebars, along with associated construction techniques and reinforcing requirements, can raise the overall construction cost. However, considering the long-term benefits of reinforced structures, the investment in steel rebars is justified as it enhances the safety and longevity of residential buildings.
- Q:What is the role of steel rebars in industrial flooring construction?
- Steel rebars play a crucial role in industrial flooring construction by providing reinforcement and strength to the concrete. They are used to prevent cracking and enhance the load-bearing capacity of the flooring, ensuring its durability and longevity.
- Q:How do steel rebars affect the overall maintenance requirements of a structure?
- Steel rebars play a crucial role in the overall maintenance requirements of a structure. They have a significant impact on the durability, strength, and longevity of a building. One of the primary functions of steel rebars is to reinforce concrete, providing additional strength and stability to the structure. By absorbing and distributing the tensile forces that occur within concrete, rebars help prevent cracking and structural failure. In terms of maintenance, the presence of steel rebars can greatly reduce the need for repairs and maintenance activities. Due to their high tensile strength, rebars enhance the structural integrity of a building, making it more resistant to external forces such as seismic activity, wind loads, and heavy loads. This added strength minimizes the likelihood of cracks, deformations, and other structural issues that may require costly repairs. Moreover, steel rebars also contribute to the overall durability of a structure. They are highly resistant to corrosion, which is a significant concern for the maintenance of concrete structures over time. Corrosion of rebars can lead to concrete spalling, cracking, and other forms of deterioration. However, the use of steel rebars with appropriate protective coatings can effectively prevent or minimize the corrosion process, reducing the maintenance requirements associated with corrosion-related issues. Furthermore, steel rebars are relatively easy to inspect and monitor for potential maintenance needs. Regular inspections can identify any signs of corrosion, damage, or misalignment of the rebars. Early detection of such issues allows for timely repairs or remedial actions, preventing further deterioration and extending the lifespan of the structure. In summary, steel rebars positively influence the overall maintenance requirements of a structure. They enhance the structural integrity, durability, and resistance to external forces, reducing the frequency and extent of maintenance activities. Additionally, their corrosion resistance and ease of inspection contribute to the long-term maintenance and preservation of the structure.
- Q:Can steel rebars be used in earthquake-prone regions?
- Yes, steel rebars can be used in earthquake-prone regions. Steel rebars are commonly used in construction to reinforce concrete structures and improve their strength and durability. In earthquake-prone regions, where buildings need to withstand seismic forces, using steel rebars can help enhance the overall structural integrity and resistance to earthquakes. The flexibility and high tensile strength of steel rebars allow them to absorb and distribute the energy generated during an earthquake, reducing the risk of structural failure and potential collapse.
- Q:Why is the earthing device forbidden to use thread steel instead of round steel as lap steel bar?
- Steel is known as hot rolled ribbed bar. Ordinary hot rolled steel bars are made up of HRB and the minimum yield point of the brand.
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Reinforcing Deformed Steel Bars with Grade HRB400
- 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
OKorder Financial Service
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