Hot Rolled Steel Rebars Deformed bar ASTM
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT or LC
- Min Order Qty:
- 100 m.t.
- Supply Capability:
- 10000 m.t./month
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Quality Product, Order Online Tracking, Timely Delivery
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Product Description:
OKorder is offering Hot Rolled Steel Rebars Deformed bar ASTM 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 Steel Rebars Deformed bar ASTM are ideal for structural applications and are widely used in forest region, Mines, factories and construction sites laid of the place such as temporary transport line and light motorcycles with line..
Product Advantages:
OKorder's Hot Rolled Steel Rebars Deformed bar ASTM 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,HRB400,HRB500
Certificates: ISO, SGS, BV, CIQ
Diameter:10mm-32mm
Packing: products are packed in coils and shipped by break bulk or containers
FAQ:
Q1: How many tons of steel products could be loaded in containers?
A1: 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.
Q2: what is the difference between actual weight and theoretical weight?
A2: 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.
Q3: How soon can we receive the product after purchase?
A3: 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.
Images:
- Q: All knowledge about thread steel!
- The grade of thread steel is composed of the minimum value of the yield point of HRB and brand. H, R, and B are the first letters in English for hot-rolled (Hotrolled), ribbed (Ribbed) and reinforced (Bars) three words. Hot rolled ribbed bar is divided into HRB335 (old No. 20MnSi), HRB400 (20MnSiV, 20MnSiNb, veteran, 20Mnti), HRB500 three brands. Main uses: widely used in housing, bridges, roads and other civil engineering construction.
- Q: How do steel rebars affect the overall fire safety of concrete structures?
- Steel rebars can have both positive and negative effects on the fire safety of concrete structures. On one hand, steel rebars help to enhance the structural integrity of concrete by providing reinforcement and preventing collapse during a fire. However, steel has a high thermal conductivity, which means it can transfer heat quickly, potentially accelerating fire spread and compromising the stability of the structure. To mitigate these risks, additional fire protection measures, such as fire-resistant coatings or enclosures, should be implemented to enhance the overall fire safety of concrete structures with steel rebars.
- Q: How do steel rebars affect the overall sustainability of a structure?
- The overall sustainability of a structure is significantly influenced by steel rebars. To begin with, the utilization of steel rebars adds to the building's strength and durability, ensuring its longevity and decreasing the need for frequent repairs or replacements. As a result, the consumption of raw materials and energy required for construction is reduced, making the structure more sustainable. Moreover, steel rebars aid in improving the structural integrity of a building, rendering it more resilient to natural disasters like earthquakes and hurricanes. By enhancing the safety and resilience of the structure, steel rebars minimize the potential for damage and loss, thereby reducing the environmental impact associated with reconstruction and waste generation. Additionally, at the end of a building's life cycle, steel rebars can be recycled. Steel is highly recyclable, and the reuse of steel rebars significantly decreases the demand for virgin steel production and the related carbon emissions. Steel recycling also conserves natural resources and reduces landfill waste, making it a more sustainable alternative to using other materials. Furthermore, the incorporation of steel rebars in structures allows for greater design flexibility and adaptability. This implies that buildings can be easily modified or repurposed, reducing the necessity for demolition and reconstruction. The ability to repurpose existing structures reduces waste and energy consumption, contributing to the overall sustainability of the built environment. In conclusion, steel rebars have a positive impact on the overall sustainability of a structure through their durability, strength, and recyclability. By enhancing the longevity, safety, and adaptability of a building, steel rebars decrease the environmental impact associated with construction, maintenance, and demolition.
- Q: How are steel rebars protected from vandalism during construction?
- Steel rebars are generally protected from vandalism during construction through various measures such as fencing off the construction site, employing security personnel, installing surveillance cameras, and implementing access control systems. Additionally, some construction sites also use anti-vandal coatings or cover the rebars with concrete to make them less accessible and susceptible to damage.
- Q: What are the guidelines for the proper cover thickness of steel rebars?
- The guidelines for the proper cover thickness of steel rebars are established to ensure the structural integrity and durability of reinforced concrete structures. The cover thickness refers to the distance between the outer surface of the rebar and the edge or surface of the concrete. The specific guidelines for cover thickness may vary depending on the design requirements, environmental conditions, and the intended use of the structure. However, there are generally accepted minimum cover thickness values provided by various international building codes and standards. The primary purpose of having an adequate cover thickness is to protect the steel rebar from corrosion caused by environmental factors such as moisture, carbonation, and chloride ingress. Corrosion can significantly weaken the rebars, compromising the structural integrity of the reinforced concrete. The recommended minimum cover thickness for steel rebars is typically determined based on the exposure conditions. For instance, in normal environmental conditions, a minimum cover thickness of 25mm to 40mm is often specified. In more aggressive environments, such as coastal areas with high chloride content or structures in contact with soil, a greater cover thickness of 50mm or more may be required. It is crucial to follow these guidelines to ensure the longevity and safety of the structure. Inadequate cover thickness can lead to accelerated corrosion of the rebars, resulting in reduced load-bearing capacity, cracking, and ultimately structural failure. Therefore, it is essential to consult the applicable building codes, standards, and design professionals to determine the appropriate cover thickness for steel rebars in a specific construction project.
- Q: How do steel rebars comply with building codes and regulations?
- Steel rebars are able to comply with building codes and regulations by meeting specific requirements outlined for their use in construction projects. The purpose of these codes and regulations is to guarantee the safety, durability, and structural integrity of buildings. Below are several ways in which steel rebars adhere to these codes and regulations: 1. Material Standards: The building codes dictate certain material standards that steel rebars must adhere to. These standards outline the permitted type, grade, and quality of steel for construction purposes. For instance, the American Society for Testing and Materials (ASTM) has established standards such as ASTM A615, which provides requirements for deformed and plain carbon-steel bars. 2. Size and Shape: Building codes specify the dimensions and shape of rebars to be utilized in different structural components like beams, columns, and slabs. Steel rebars must meet these size and shape requirements to ensure proper fit and structural integrity. 3. Placement and Spacing: Building codes govern the appropriate placement and spacing of rebars within concrete structures. These codes specify the minimum and maximum distances between rebars, as well as the required cover (distance from the concrete surface). Adhering to these regulations enhances the strength and durability of the structure. 4. Welding and Connection: In cases where welding or connecting rebars is necessary, building codes provide guidelines on the proper welding techniques and requirements. These regulations ensure that the welded or connected rebars offer the necessary strength and stability to the structure. 5. Testing and Certification: Steel rebars must undergo various tests to ensure compliance with building codes and regulations. These tests include tensile strength, yield strength, elongation, and bending tests. Products that pass these tests are certified as compliant and can be utilized in construction projects. By adhering to these building codes and regulations, steel rebars contribute to the overall safety and integrity of the structures in which they are used. Compliance ensures that the rebars meet the necessary standards and effectively fulfill their intended function.
- Q: How are steel rebars affected by chemical exposure?
- Steel rebars can be affected by chemical exposure in several ways. Certain chemicals, such as acids, alkalis, and chlorides, can cause corrosion of the rebar, leading to a reduction in its strength and durability. The chemical reaction between the rebar and the corrosive substances can result in the formation of rust, which can weaken the steel and compromise the structural integrity of the reinforced concrete. Therefore, it is crucial to protect steel rebars from chemical exposure by using appropriate coatings or by ensuring proper concrete cover to prevent corrosion and maintain the long-term performance of the structure.
- Q: How do steel rebars distribute loads in concrete structures?
- Steel rebars distribute loads in concrete structures by providing reinforcement and increasing the tensile strength of the concrete. The rebars are typically placed in the concrete in a grid-like pattern, creating a network of support throughout the structure. When the concrete is subjected to external loads, such as the weight of the building or the force of an earthquake, the rebars help distribute the load more evenly across the structure. This prevents the concrete from cracking or failing under the stress. Rebars work by transferring the tensile forces to the surrounding concrete. While concrete is strong in compression, it is relatively weak in tension. The rebars act as a reinforcement, resisting the tensile forces and preventing the concrete from cracking. When a load is applied to the structure, the rebars bear a portion of the load and distribute it to adjacent rebars and the surrounding concrete, effectively increasing the overall strength and stability of the structure. The distribution of loads in concrete structures is also influenced by the spacing and diameter of the rebars. Properly spacing the rebars ensures that the load is evenly distributed, minimizing the risk of localized stress concentration. The diameter of the rebars also plays a role in load distribution, as larger diameter rebars can withstand higher loads and provide more reinforcement. In addition to load distribution, steel rebars also help control the propagation of cracks within the concrete. When cracks do occur, the rebars help prevent them from spreading by transferring the stress around the cracked area and maintaining the structural integrity of the concrete. Overall, steel rebars play a critical role in distributing loads in concrete structures by providing reinforcement, increasing tensile strength, and controlling crack propagation. Their strategic placement and proper sizing ensure that the loads are evenly distributed, enhancing the durability and longevity of the structure.
- Q: How are steel rebars protected from concrete spalling?
- Various methods and techniques are utilized to safeguard steel rebars from concrete spalling. One commonly employed approach involves the application of a concrete cover over the rebars. This entails embedding the rebars within the concrete structure to prevent direct exposure to external elements or conditions that may lead to spalling. To ensure adequate protection, construction codes and standards typically prescribe the thickness of the concrete cover. Another means of shielding steel rebars from concrete spalling is the use of corrosion inhibitors. These inhibitors are typically incorporated into the concrete mix during construction. They function by reducing the rate of corrosion for the steel rebars, effectively safeguarding them against spalling caused by rusting and corrosion. In addition to concrete cover and corrosion inhibitors, proper concrete mix design holds significant importance in protecting steel rebars. The utilization of high-quality concrete with an appropriate water-cement ratio, adequate strength, and suitable curing greatly enhances the concrete's resistance against spalling. This guarantees the secure embedding of the rebars within the concrete structure and shields them from moisture or other deteriorating agents that could lead to spalling. Furthermore, adhering to proper construction practices, such as thorough compaction of concrete, precise placement and alignment of rebars, and effective waterproofing measures, also contribute to the protection of steel rebars from concrete spalling. These practices help minimize the likelihood of moisture ingress and the formation of cracks or voids that could expose the rebars to the risk of spalling. In summary, a combination of concrete cover, corrosion inhibitors, appropriate concrete mix design, and sound construction practices are vital in safeguarding steel rebars from concrete spalling. By implementing these measures, the durability and lifespan of concrete structures can be significantly enhanced.
- Q: Can steel rebars be used in the construction of shopping centers?
- Indeed, steel rebars possess the capability to be utilized in the construction of shopping centers. These rebars, known as reinforcing bars, are extensively employed in the construction sector to fortify concrete structures. Shopping centers typically necessitate robust, resilient, and enduring infrastructure, and steel rebars furnish the indispensable strength and reinforcement essential for supporting the building's weight and load. They effectively thwart cracks, augment structural stability, and heighten the overall durability of the construction. Furthermore, steel rebars can be effortlessly molded and trimmed to conform to the specific design prerequisites of a shopping center, rendering them an adaptable and pragmatic choice for construction projects.
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Hot Rolled Steel Rebars Deformed bar ASTM
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT or LC
- Min Order Qty:
- 100 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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