Hot Rolled Carbon Steel Rebar 16-25mm with High Quality
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT or LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 10000 m.t./month
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Product Description:
OKorder is offering Hot Rolled Carbon Steel Rebar 16-25mm 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.
Product Applications:
Hot Rolled Carbon Steel Rebar 16-25mm with High Quality 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 Carbon Steel Rebar 16-25mm with High Quality are durable, strong.packed and suitable for construction
Main Product Features:
· Premium quality
· Prompt delivery & seaworthy packing (30 days after receiving deposit)
· Can be recycled and reused
· Mill test certification
· Professional Service
· Competitive pricing
Product Specifications:
Manufacture: Hot rolled
Grade: HRB335 HRB400 BS4449 Grade460 ASTM Grade40 Grade60
Certificates: ISO, SGS, BV, CIQ
Length:6m 8m 9m 12m
Packaging: Export packing, packed by coil
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.
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: How many tons per bundle?
A4: Around 2-3tons
Q5: How to avoid the rust after deliver the goods to the loading port?
A5: We will keep the goods at the port covered with water-proof material
Q6: What is the chemical composition and physical properties of HRB400?
A6:
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 | |||||
Q7:What is the weight per meter for the common sizes:
A7:
Diameter(mm) | Section area (mm²) | Mass(kg/m) | Weight of 12m bar(kg) |
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 |
Images:
- Q: What is the best way to store steel rebars on site?
- The best way to store steel rebars on site is to keep them on a flat, elevated surface away from moisture and direct contact with the ground. They should be stacked in an organized manner, with each layer separated by wooden planks or other suitable materials to prevent rusting and ensure proper airflow. Additionally, covering the rebars with a tarp or plastic sheet can provide extra protection from the elements.
- Q: What are the guidelines for handling and installing steel rebars in construction sites?
- The guidelines for handling and installing steel rebars in construction sites typically include the following: 1. Storage: Steel rebars should be stored on a flat and dry surface, preferably on elevated racks to prevent contact with the ground and avoid rusting or damage. 2. Transportation: Rebars should be moved using appropriate lifting equipment, such as cranes or forklifts, to prevent excessive bending or mishandling. 3. Inspection: Rebars should be inspected for any defects, such as bends, cracks, or excessive rust, before installation. Damaged rebars should not be used. 4. Cutting and bending: Rebars should be cut and bent using appropriate tools and equipment, following the specifications and dimensions provided in the construction plans. 5. Placement: Rebars should be placed accurately and securely within the concrete structures, ensuring proper alignment and spacing as per the design requirements. 6. Tying: Rebars should be securely tied together using wire or approved tying methods at the intersections to maintain the desired positions during concrete pouring. 7. Embedment: Rebars should be properly embedded within the concrete to ensure sufficient coverage, typically complying with the minimum concrete cover specified in the design. 8. Safety: Adequate personal protective equipment (PPE), such as gloves and safety boots, should be worn by workers during rebars handling and installation to prevent injuries. It is important to note that specific construction projects and local regulations may have additional guidelines or requirements for handling and installing steel rebars. Therefore, it is crucial to refer to the project specifications and consult with relevant experts or authorities for comprehensive guidelines.
- Q: Are there any disadvantages of using steel rebars?
- Yes, there are some disadvantages of using steel rebars. 1. Corrosion: One of the main disadvantages of steel rebars is their susceptibility to corrosion. When exposed to moisture and oxygen, steel rebars can rust over time, which weakens their structural integrity. This issue can be particularly problematic in coastal areas with high humidity levels or in structures exposed to harsh weather conditions. 2. Weight: Steel rebars are relatively heavy compared to other alternatives like fiberglass or carbon fiber reinforced polymers. This can pose challenges during transportation and installation, especially in large-scale construction projects where heavy machinery is required to move and position the rebars. 3. Cost: Steel rebars tend to be more expensive compared to other reinforcement materials, which can increase the overall cost of a construction project. Additionally, the price of steel is subject to market fluctuations, making it difficult to predict the exact budget for reinforcement materials. 4. Conductivity: Steel rebars are highly conductive to heat and electricity. This can be a disadvantage in structures that require insulation or in areas with high electrical conductivity requirements. In such cases, additional insulation or grounding measures may need to be implemented, adding extra complexity and cost to the construction process. 5. Environmental impact: Steel production is energy-intensive and contributes to greenhouse gas emissions. The extraction and processing of iron ore to manufacture steel rebars can have a significant environmental impact, including deforestation, habitat destruction, and air and water pollution. Despite these disadvantages, steel rebars remain widely used in construction due to their high tensile strength, durability, and proven track record in providing structural support. Additionally, advancements in corrosion-resistant coatings and the development of alternative reinforcement materials are continuously being explored to mitigate these drawbacks.
- Q: How do steel rebars contribute to the overall structural integrity of a building?
- Steel rebars contribute to the overall structural integrity of a building by providing reinforcement to concrete structures. They enhance the strength and durability of concrete by withstanding tensile forces, which concrete alone is not able to withstand. This reinforcement system helps distribute and resist the loads and stresses acting on the building, increasing its resistance to bending, cracking, and collapsing. Ultimately, steel rebars ensure that the building can withstand various external forces, such as wind, earthquakes, and heavy loads, thereby ensuring the overall stability and safety of the structure.
- Q: Can steel rebars be used in high-rise buildings?
- Yes, steel rebars can be used in high-rise buildings. In fact, they are commonly used for reinforcing concrete structures in high-rise buildings due to their high tensile strength and ability to withstand heavy loads. Rebars provide structural stability, enhance the overall strength of the building, and ensure safety by preventing the concrete from cracking or collapsing under stress.
- Q: How do steel rebars contribute to the overall structural performance of a building?
- Steel rebars play a crucial role in enhancing the overall structural performance of a building. These reinforced steel bars are primarily used in concrete construction and provide strength and stability to the structure. Firstly, rebars reinforce the concrete by increasing its tensile strength. Concrete is highly resistant to compression forces, but it is weak when it comes to tension. By adding steel rebars, which have excellent tensile strength, to the concrete, the resulting composite material becomes much stronger and more resistant to bending or cracking under pressure. Moreover, rebars improve the durability and longevity of the building. Concrete structures are subjected to various forces such as wind, earthquakes, and heavy loads. Steel rebars act as a reinforcement network, distributing these forces throughout the concrete and preventing localized damage. This reinforcement helps to minimize the risk of structural failure, ensuring the building can withstand the test of time and environmental conditions. In addition, rebars contribute to the overall stability of the structure. By reinforcing concrete columns, beams, and slabs, rebars enhance their load-bearing capacity. This enables the building to support heavier loads without excessive deflection or collapse. The increased stability provided by the rebars also allows for more flexible and creative architectural designs, as they provide the necessary structural support for complex and unique building shapes. Furthermore, steel rebars are essential in seismic zones where earthquakes are common. The ductility and flexibility of steel allow it to absorb and dissipate the energy generated during an earthquake. This prevents the building from undergoing severe damage and helps it to retain its structural integrity, minimizing the risk to occupants. Overall, steel rebars significantly contribute to the overall structural performance of a building by enhancing its strength, durability, stability, and resistance to various forces. Their use ensures that the structure remains safe, long-lasting, and capable of withstanding the demands placed upon it, making them an indispensable component in modern construction.
- Q: How do steel rebars resist alkali-silica reaction in concrete?
- The primary reason why steel rebars can withstand the alkali-silica reaction in concrete is because of the passive film that forms on their surface and the alkaline environment of the concrete. When steel rebars are embedded in concrete, they develop a passive film on their surface. This film serves as a protective layer that prevents direct contact between the steel and the aggressive alkali-silica reactive aggregates that are present in the concrete. The formation of this passive film is a result of the high pH of the alkaline environment created by the cement in the concrete, which usually has a pH level of 12-13. This high pH aids in the creation of an oxide layer on the surface of the steel rebar, effectively shielding it from the reactive elements in the aggregates. Moreover, the alkaline environment of the concrete plays a crucial role in maintaining the passivity of the steel rebars. The alkalinity of the concrete enables the passive film to remain stable and intact, providing a continuous barrier against the alkali-silica reaction. As long as the pH of the concrete remains high, the steel rebars will continue to resist the reaction. It is important to note that the thickness and quality of the passive film on the steel rebars are vital in guaranteeing their resistance to the alkali-silica reaction. Any factors that can compromise the integrity of this film, such as carbonation or chloride contamination, can increase the risk of the reaction occurring. In conclusion, the resistance of steel rebars to the alkali-silica reaction in concrete is primarily due to the presence of a passive film on their surface, which is formed by the alkaline environment of the concrete. This film functions as a protective barrier, preventing direct contact between the steel and the reactive aggregates and minimizing the likelihood of the reaction occurring.
- Q: How is thread steel made?
- Rebar is a ribbed steel bar, also known as ribbed steel, usually with 2 longitudinal ribs and transverse ribs uniformly distributed along the length. The transverse rib shape is helical, herringbone, crescent 3. Expressed in millimeters of nominal diameter. Nominal diameter of round steel bars of equal diameter equal to the cross section of ribbed bars. The nominal diameter of the steel bar is 8-50 mm, and the recommended diameters are 8, 12, 16, 20, 25, 32 and 40 mm. Ribbed steel bars are mainly subjected to tensile stress in concrete. Because of the function of rib and the greater bonding ability of concrete, ribbed steel bar can bear the effect of external force better. Ribbed steel bars are widely used in a variety of building structures, especially large, heavy, light, thin-walled and high-rise structures.
- Q: What are the limitations of using steel rebars in construction?
- There are several limitations of using steel rebars in construction. Firstly, steel rebars are prone to corrosion in certain environments, especially if they are exposed to moisture or chemicals. This can weaken the rebars over time and compromise the structural integrity of the building. Additionally, steel rebars are heavy and require heavy machinery to transport and install, which can increase construction costs. Moreover, steel rebars have a high thermal conductivity, which can lead to energy loss and affect the energy efficiency of the building. Finally, steel rebars are not suitable for certain specialized construction applications, such as in areas with high electromagnetic fields or where non-magnetic properties are required.
- Q: How do steel rebars affect the overall maintenance requirements of concrete structures?
- Steel rebars play a crucial role in the overall maintenance requirements of concrete structures. These reinforcing bars are used to enhance the strength and durability of concrete by providing tensile strength and preventing cracks. By adding steel rebars to concrete, the structure becomes better equipped to resist the forces that it may encounter during its lifespan. One of the primary ways that steel rebars affect maintenance requirements is by reducing the likelihood of cracks in concrete structures. Concrete on its own is strong in compression but weak in tension. When subjected to tensile forces, such as loads or temperature fluctuations, concrete tends to crack. However, by incorporating steel rebars within the concrete, these cracks are minimized or prevented altogether. This is because the steel rebars absorb the tensile forces, allowing the concrete to remain intact and intact structures require less maintenance. Furthermore, steel rebars also increase the overall strength of concrete structures, making them more resistant to external forces. This added strength reduces the chances of structural failure, thereby decreasing the maintenance requirements in terms of repairs or replacements. Additionally, the use of steel rebars can extend the lifespan of concrete structures, as they provide the necessary reinforcement to withstand the test of time. However, it is essential to note that steel rebars can also be susceptible to corrosion over time, which can impact the maintenance requirements of concrete structures. When steel rebars corrode, they expand, causing cracks and spalling in the concrete. This corrosion can be accelerated by various factors such as exposure to moisture, chloride ions, or carbonation. Therefore, regular inspections and maintenance measures, such as protective coatings or cathodic protection, must be implemented to prevent or manage the corrosion of steel rebars. In conclusion, steel rebars have a significant impact on the overall maintenance requirements of concrete structures. They enhance the strength, durability, and resistance of concrete, reducing the occurrence of cracks and structural failures. However, proper maintenance and protection against corrosion are necessary to ensure the continued effectiveness of steel rebars, ultimately contributing to the longevity and low maintenance needs of concrete structures.
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Hot Rolled Carbon Steel Rebar 16-25mm with High Quality
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT or LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 10000 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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