Hot Rolled Reinforcing Steel Bar
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT or LC
- Min Order Qty:
- -
- Supply Capability:
- -
OKorder Service Pledge
OKorder Financial Service
You Might Also Like
Product Description:
OKorder is offering Hot Rolled Reinforcing Steel Bar 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 African, South American and Asian markets. We provide quotations within 24 hours of receiving an inquiry and guarantee competitive prices.
Product Applications:
Hot Rolled Reinforcing Steel Bar 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 Hot Rolled Reinforcing Steel Bar are durable, strong, and wide variety of sizes.
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
Size:8,10, 12, 14, 16, 18, 20, 22, 25, 28, 32mm
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 | ||
Physics capability | ||||||||
Yield Strength(N/cm2) | Tensile Strength(N/cm2) | Elongation (%) | ||||||
≥400 | ≥570 | ≥14 | ||||||
FAQ:
Q1: How soon can we receive the product after purchase?
A1: Within three days of placing an order, we will arrange production. The normal sizes with the normal grade can be produced within one month. The specific shipping date is dependent upon international and government factors, the delivery to international main port about 45-60days.
Q2: How many tons of steel products could be loaded in containers?
A2: Usually the steel products are delivered by bulk vessel because of the large quantity and the freight. However, there are no bulk vessel enter some seaports so that we have to deliver the cargo by containers. The 6m steel product can be loaded in 20FT container, but the quantity is changed according to the size, usually from 18tons to 25tons.
Q3: what is the difference between actual weight and theoretical weight?
A3: All the section steel has two weights: actual weight and theoretical weight. Actual weight is the weighing out when the product delivered from the mill. Theoretical weight is calculated by pieces. The invoice can be based on each of them as your request.
.
Images:
- Q: Are there any restrictions on the use of steel rebars in certain regions?
- Yes, there are certain restrictions on the use of steel rebars in certain regions. These restrictions can vary from region to region and are typically put in place to ensure the safety and integrity of structures. In some areas, building codes and regulations may dictate specific requirements for the use of steel rebars, such as the type, size, and placement of rebars. Additionally, there may be restrictions on the use of certain types of steel rebars, such as epoxy-coated rebars, due to environmental concerns. It is important for construction professionals to familiarize themselves with the local building codes and regulations to ensure compliance and promote the safety and durability of structures.
- Q: What is the role of steel rebars in preventing concrete spalling due to fire?
- The prevention of concrete spalling caused by fire heavily relies on steel rebars. Spalling, which occurs when concrete cracks or flakes off under intense heat, such as during a fire, can be mitigated by embedding steel rebars, also known as reinforcement bars, within the concrete structure. In the event of a fire, the temperature can rapidly rise, causing the moisture within the concrete to transform into steam. This steam generates pressure within the concrete, leading to spalling. However, the presence of steel rebars helps address this issue. Steel possesses a higher melting point than concrete and exhibits exceptional thermal conductivity. When exposed to high temperatures, the steel rebars effectively conduct and disperse heat more efficiently compared to the surrounding concrete. This heat transfer assists in minimizing the temperature gradient within the concrete, thereby reducing the risk of spalling. Moreover, steel rebars serve as reinforcement, ensuring the cohesion of the concrete. In instances of spalling, the rebars aid in maintaining the structural integrity of the concrete by preventing complete disintegration. They provide supplementary strength and support, rendering the concrete more resistant to cracking and breaking. In conclusion, steel rebars are integral in preventing concrete spalling caused by fire. They facilitate heat dissipation, diminish temperature gradients, and offer structural support to the concrete. By enhancing the fire resistance of the concrete, steel rebars contribute to the overall safety and durability of the structure.
- Q: How can corrosion of steel rebars be prevented?
- Corrosion of steel rebars can be prevented through various methods such as using corrosion-resistant materials, applying protective coatings, ensuring proper concrete cover, implementing cathodic protection systems, and maintaining a good drainage system to avoid water accumulation. Regular inspection and maintenance also play a crucial role in preventing corrosion.
- Q: How do steel rebars prevent concrete from cracking?
- Concrete cracking is prevented by steel rebars, as they reinforce it and increase its strength. When concrete is poured, it is initially in a liquid state and lacks tensile strength, making it prone to cracking under tension. However, steel rebars are embedded within the concrete structure, creating a strong bond as it hardens. The rebars function as a framework within the concrete, evenly distributing tensile forces throughout the structure. When external forces, such as load or temperature changes, act on the concrete, the rebars resist the tensile stresses that would otherwise cause cracks. This is because steel possesses significantly higher tensile strength compared to concrete. Furthermore, steel rebars also assist in managing cracks that may arise due to shrinkage during the concrete curing process. As the concrete dries and hardens, a chemical reaction causes it to shrink. This shrinkage has the potential to cause cracks, but the presence of rebars restrains excessive expansion or contraction, reducing the likelihood of cracking. Not only do steel rebars prevent cracks, but they also enhance the overall structural integrity of the concrete. They aid in evenly distributing loads, resulting in a concrete structure that is more resistant to bending, shearing, and other forces. This reinforcement ensures that the concrete can withstand anticipated loads and maintain stability over time. In summary, steel rebars play a vital role in preventing concrete from cracking by providing tensile strength and reinforcement. Through the distribution of tensile forces, control of shrinkage, and enhancement of structural integrity, they ensure that the concrete remains strong, durable, and crack-resistant. As a result, the lifespan of the concrete is prolonged, and its stability is ensured.
- Q: What is the lifespan of a steel rebar in a concrete structure?
- The lifespan of a steel rebar in a concrete structure can vary depending on various factors. Generally, a properly designed and constructed concrete structure with steel reinforcement can have a lifespan of 50 to 100 years or more. One crucial factor influencing the lifespan is the quality of the concrete and its ability to protect the steel reinforcement from external elements. Concrete acts as a barrier, shielding the steel rebar from moisture, oxygen, and other potentially corrosive substances. However, if the concrete is of poor quality, contains excessive amounts of chloride or other aggressive chemicals, or is not properly cured, it can lead to the deterioration of the rebar and significantly reduce its lifespan. Another important factor is the exposure conditions to which the concrete structure is subjected. If the structure is located in a harsh environment with high levels of humidity, saltwater exposure, or industrial pollutants, it can accelerate the corrosion process and decrease the lifespan of the rebar. Proper maintenance and periodic inspection can also play a significant role in extending the lifespan of the steel rebar in a concrete structure. Regular inspections can help identify any signs of corrosion or deterioration early on, allowing for timely repairs or protective measures to be implemented. To enhance the lifespan of steel rebar, additional protective measures can be taken during construction, such as applying corrosion-resistant coatings or using stainless steel reinforcement. These measures can significantly extend the lifespan of the rebar and enhance the overall durability of the concrete structure. In summary, the lifespan of a steel rebar in a concrete structure can vary but can typically range from 50 to 100 years or more, provided that the concrete is of good quality, the exposure conditions are not too severe, and proper maintenance and protective measures are implemented.
- Q: Grade 1, grade three, grade two, steel, wire rod, round bar
- Wire is a wire, usually refers to the use of "high speed non-twist wire rod rolling mill, ordinary common low carbon steel, hot-rolled wire torsion free cooling (ZBH4403-88) and the high quality carbon steel, hot-rolled wire rod without torsion cold control (ZBH44002-88).
- Q: Are steel rebars resistant to extreme temperatures?
- Yes, steel rebars are generally resistant to extreme temperatures. Steel has a high melting point and can withstand both high and low temperatures without significant structural changes or loss of strength. However, extremely high temperatures can cause some degradation in the rebar's mechanical properties over time.
- Q: What are the different shapes of steel rebars?
- Steel rebars come in various shapes, such as round (plain or deformed), square, rectangular, and hexagonal. These shapes allow for different applications and structural requirements in construction projects.
- Q: What are the guidelines for proper handling and disposal of steel rebars on construction sites?
- The guidelines for proper handling and disposal of steel rebars on construction sites include wearing appropriate personal protective equipment (PPE) such as gloves and safety glasses, using proper lifting techniques to avoid injury, storing rebars in a designated area away from workers and equipment, and disposing of them in accordance with local regulations, which may require recycling or proper disposal in designated waste sites.
- Q: How are steel rebars used in the construction of wastewater treatment plants?
- Steel rebars are used in the construction of wastewater treatment plants to reinforce the concrete structures, such as tanks and basins, that are essential for storing and treating wastewater. The rebars provide strength and stability to these structures, ensuring they can withstand the weight of the water and the various chemicals used in the treatment process. Additionally, the rebars help to prevent cracking and structural failure, ensuring the longevity and reliability of the wastewater treatment plant.
Send your message to us
Hot Rolled Reinforcing Steel Bar
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT or LC
- Min Order Qty:
- -
- Supply Capability:
- -
OKorder Service Pledge
OKorder Financial Service
Similar products
Hot products
Hot Searches
Related keywords
