Hot Rolled Deformed Steel Bar HRB400
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Product Description:
OKorder is offeringDeformed 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 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 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:
Chemical Composition: (Please kindly find our chemistry of our material based on HRB400 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 | |||||
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: 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.
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- Q:How is steel rebar manufactured?
- Steel rebar is manufactured through a process called hot rolling, where steel billets are heated and passed through a series of rollers to shape them into the desired rebar size and form. This process involves various stages such as heating, roughing, finishing, and cooling, resulting in the production of high-quality steel rebar used in construction projects.
- Q:Can steel rebars be used in foundation systems?
- Yes, steel rebars can be used in foundation systems. Steel rebars are commonly used as reinforcement in concrete foundations to provide additional strength and stability. They help to distribute the load evenly and prevent cracking or failure of the foundation.
- Q:What are the common sizes of steel rebars?
- The common sizes of steel rebars range from 6mm to 40mm in diameter.
- Q:Can steel rebars be used in the construction of government buildings?
- Yes, steel rebars can be used in the construction of government buildings. Steel rebars are commonly used in the construction industry due to their high strength and durability. They provide structural reinforcement to concrete, enhancing the overall strength and stability of the building. For government buildings, where safety and longevity are crucial, steel rebars are often preferred to ensure the structure can withstand various stresses and meet necessary building codes and standards.
- Q:Can steel rebars be used in wastewater treatment plant construction?
- Yes, steel rebars can be used in wastewater treatment plant construction. Steel rebars are commonly used for reinforcement in concrete structures, providing strength and durability to withstand the harsh conditions present in wastewater treatment plants.
- Q:What is the process of galvanizing steel rebars?
- Galvanizing steel rebars is a process that involves applying a protective layer of zinc to the surface of the steel rebar to prevent corrosion and extend its lifespan. The process typically involves the following steps: 1. Surface Preparation: The steel rebars are thoroughly cleaned to remove any dirt, oil, or scale on the surface. This is typically done by using a combination of chemical cleaning agents and mechanical methods such as sandblasting or shot blasting. 2. Pickling: After cleaning, the rebars are immersed in a pickling solution, usually a mixture of hydrochloric acid and water. This solution removes any remaining impurities or oxides from the surface of the rebars. 3. Fluxing: The pickled rebars are then rinsed to remove any residual acid and are immersed in a flux solution. The flux solution helps to remove any remaining oxides and ensures proper adhesion of the zinc coating. 4. Galvanizing: The fluxed rebars are then dipped into a bath of molten zinc. The temperature of the zinc bath is typically maintained between 815 to 850 degrees Fahrenheit (435 to 455 degrees Celsius). The rebars are carefully immersed and then slowly withdrawn to allow excess zinc to drain off. 5. Quenching: After galvanizing, the rebars may be quenched in a specialized solution to cool them rapidly and stabilize the zinc coating. This step helps to prevent the formation of excessive zinc oxide on the surface. 6. Inspection: Once the galvanized rebars have cooled, they undergo a thorough inspection to ensure the quality of the coating. Visual inspection, thickness measurement, and adhesion tests are commonly conducted to assess the zinc coating's integrity. Overall, the galvanizing process provides a durable and effective protective coating for steel rebars, making them resistant to corrosion and extending their lifespan in various applications such as construction, reinforcement, and infrastructure projects.
- Q:Are steel rebars available in different shapes and profiles?
- Yes, steel rebars are available in various shapes and profiles to suit different construction needs.
- Q:What are the factors that can affect the lifespan of steel rebars in concrete structures?
- Several factors can impact the lifespan of steel rebars in concrete structures. Firstly, the structure's concrete quality and composition are significant. If the concrete is of low quality or contains harmful chemicals, it can corrode the rebars, leading to a shorter lifespan. During construction, it is essential to properly proportion and cure the concrete mixture. Secondly, the rebars' lifespan is greatly affected by the exposure conditions of the concrete structure. Factors like humidity, temperature fluctuations, and the presence of aggressive substances such as chloride ions or carbon dioxide can accelerate corrosion. Structures in coastal or industrial areas are especially vulnerable due to high salt levels in the air or pollutant presence. Thirdly, the design and construction practices employed have a significant impact on rebars' longevity. Adequate cover thickness, which is the distance between the rebar surface and the concrete's outer face, is crucial. Insufficient cover thickness can result in inadequate corrosion protection. Additionally, effective drainage systems should be incorporated into the design to prevent water accumulation around the rebars, as stagnant moisture accelerates corrosion. Furthermore, maintenance practices also affect rebars' lifespan. Regular inspections, cleaning, and repairs help identify and address issues before they worsen. The application of protective coatings or the use of corrosion inhibitors can also extend rebars' lifespan. Lastly, the type and quality of the rebars themselves are important factors. Rebars with higher carbon and alloying elements are generally more resistant to corrosion. The manufacturing process quality and the presence of impurities can also impact rebars' durability. In conclusion, the lifespan of steel rebars in concrete structures can be influenced by several factors, including concrete quality, exposure conditions, design and construction practices, maintenance, and rebars' quality. Proper attention to these factors ensures the longevity and structural integrity of concrete structures.
- Q:What are the common surface patterns for steel rebars?
- Plain, deformed, and ribbed patterns are the common surface patterns for steel rebars. Plain rebars have a smooth surface and no patterns or indentations. They are used in applications where bendability or weldability is important, such as in reinforced concrete structures. On the other hand, deformed rebars have patterns or indentations on their surface, such as ribs, humps, or indentations. These patterns enhance bonding with the surrounding concrete and improve the grip between the rebar and concrete. This ensures better stress transfer and prevents slippage. Deformed rebars are widely used in construction projects, particularly in areas that require high tensile strength and bond strength. Ribbed rebars, a specific type of deformed rebar, have continuous longitudinal ribs along their length. These evenly spaced ribs provide additional anchorage and bond strength with the concrete. Ribbed rebars are commonly used in applications that require a higher level of bond strength, such as in seismic zones or structures subjected to heavy loads. In conclusion, the choice of surface pattern for steel rebars depends on the specific requirements of the construction project and the desired performance characteristics.
- Q:What are the common problems associated with steel rebars in construction?
- There are several common problems associated with steel rebars in construction. One of the main issues is corrosion. Steel rebars are susceptible to rusting when exposed to moisture and oxygen, especially in humid or coastal environments. This can compromise the integrity of the rebars and weaken the overall structure. Another problem is improper installation. If rebars are not positioned correctly or are not adequately secured, they may not provide the necessary reinforcement and support. This can lead to structural failures and safety hazards. Additionally, the size and spacing of rebars can be a concern. If the rebars are too small or spaced too far apart, they may not effectively distribute loads or resist bending and cracking. On the other hand, if the rebars are too large or placed too close together, it can increase construction costs and make the concrete mix difficult to work with. Another challenge is the potential for poor bonding between the rebar and the concrete. If there is inadequate contact or bonding between the two materials, it can compromise the structural integrity and reduce the load-bearing capacity of the reinforced concrete. Lastly, the quality of the steel rebars themselves can be an issue. Low-quality or substandard rebars may have defects, such as impurities or inconsistencies in their composition, which can weaken the reinforcement and compromise the overall strength of the structure. To mitigate these problems, it is important to use high-quality rebars, follow proper installation techniques, and ensure proper maintenance and protection against corrosion. Regular inspections and testing can also help identify any issues and ensure the longevity and safety of the reinforced concrete structure.
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Hot Rolled Deformed Steel Bar HRB400
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT or LC
- Min Order Qty:
- -
- Supply Capability:
- -
OKorder Service Pledge
OKorder Financial Service
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