Hot Rolled Deformed bars with High Quality
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 10000 m.t./month
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OKorder is offering Deformed Steel Bar 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.
Note:
1. Our products are produced according to national standard (GB), if not, supply according to national standards (GB) or agreement as customer required.
2. Other Grade and Standard Deformed Steel Bar we can supply:
Grade: GR40/GR60, G460B/B500A/B500B/B500C,BST500S
Standard: ASTM, BS, DIN
3. We can not only supply Deformed Steel Bar; if you need anything about building materials, please contact us for further information.
4. Please send us your detail specifications when inquire. We will reply to you as soon as possible. We sincerely hope we can establish a long stable business relationship.
Product Applications:
Deformed Steel Bar with high quality 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 Deformed Steel Bar with high quality 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
Product Specifications:
Standard | GB | HRB400 | |
Diameter | 10mm-32mm | ||
Length | 6M, 12M | ||
Place of origin | Hebei, China mainland | ||
Advantages | exact size, regular package, chemical and mechanical properties are stable. | ||
Type | Hot rolled deformed steel bar | ||
Chemical Composition:
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) |
18 | 254.5 | 2.00 | 24 |
20 | 314.2 | 2.47 | 29.64 |
22 | 380.1 | 2.98 | 35.76 |
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 you 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 purchasement?
A3: Within three days of placing an order, we will begin production. The specific shipping date is dependent upon international and government factors, but it is typically 7 to 10 workdays.
bdenum enhance this surface layer and improve the corrosion resistance of the stainless material.
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- Q:Can steel rebars be used in offshore oil and gas platform construction?
- Steel rebars are indeed suitable for use in the construction of offshore oil and gas platforms. They are frequently employed as reinforcements in concrete structures, including offshore platforms. This utilization enhances the concrete's strength and durability, thereby increasing its ability to withstand the challenging conditions present in offshore environments, such as powerful winds, waves, and corrosive saltwater. The incorporation of steel rebars into the construction of offshore platforms guarantees the platform's structural integrity, resulting in a secure and dependable structure for oil and gas extraction activities. Furthermore, steel rebars can be custom-designed and manufactured to conform to specific industry standards and requirements, ensuring their appropriateness for offshore applications.
- Q:How are steel rebars bundled and tied together on construction sites?
- Steel rebars are typically bundled together by placing them parallel to each other and tying them tightly with steel wire or plastic ties. This bundling ensures that the rebars remain in place and maintain their shape during transportation and installation on construction sites.
- Q:How do steel rebars affect the overall durability of concrete?
- Concrete structures benefit greatly from the presence of steel rebars, as they significantly contribute to their overall durability. Steel rebars enhance the strength of concrete and its ability to resist external forces and environmental conditions. One of the main functions of steel rebars is to provide tensile strength to concrete, which is naturally weak in resisting tension. Concrete is known for its excellent compressive strength but tends to crack under tension. By embedding steel rebars within the concrete, these cracks are effectively controlled and prevented from expanding, ultimately improving the durability of the structure. Steel rebars also increase the flexural strength of concrete, allowing it to withstand bending and deformations more effectively. This is particularly important in structures such as beams, columns, and slabs that experience significant loads and forces throughout their lifespan. Furthermore, steel rebars act as reinforcement in concrete, enhancing its resistance to external factors like earthquakes, wind, and impact loads. The presence of rebars helps distribute and dissipate these forces throughout the structure, reducing the risk of structural failure and increasing overall durability. Another crucial aspect is the prevention of corrosion in reinforced concrete structures. Steel rebars are typically coated with materials that protect them from corrosion caused by moisture and chemical reactions. This protective coating, combined with the alkaline environment of concrete, forms a barrier that significantly slows down the corrosion process, ultimately increasing the longevity and durability of the concrete structure. To conclude, steel rebars play a vital role in enhancing the overall durability of concrete structures. They provide necessary tensile strength, improve flexural strength, enhance resistance to external forces, and prevent corrosion. Incorporating steel rebars makes concrete more robust, long-lasting, and capable of withstanding various challenges, ensuring the longevity and safety of the structure.
- Q:How are steel rebars measured?
- The standardized system known as the "bar size number" is utilized to measure steel rebars. Each rebar size is assigned a numerical value, which corresponds to its diameter. The diameter is measured in inches or millimeters, depending on the region or country. In the United States, the bar size number ranges from #3 to #18 and indicates the diameter in eighths of an inch. For example, a #3 rebar has a diameter of 3/8 inch, while a #8 rebar has a diameter of 1 inch. Beyond #8, the diameter is measured in quarters of an inch. A #11 rebar, for instance, has a diameter of 1 1/8 inches, and a #18 rebar has a diameter of 2 1/4 inches. In metric countries, millimeters are used to measure rebars. The diameter is usually rounded to the nearest millimeter. For instance, a 10 mm rebar is equivalent to a #3 rebar in the US, and a 25 mm rebar is equivalent to a #8 rebar. To determine the length of a rebar, a tape measure or ruler is employed. The length is typically measured in feet or meters. Rebars are commonly available in 20 or 40 feet (6 or 12 meters) lengths, but they can also be cut to custom lengths as per project requirements. It is important to note that the measurement system may vary slightly in different regions or countries. Therefore, it is crucial to consult local standards and codes for accurate measurement guidelines.
- Q:How do steel rebars contribute to the seismic performance of concrete buildings?
- The seismic performance of concrete buildings is greatly enhanced by steel rebars. These rebars provide reinforcement to the concrete structures, making them more resistant to the powerful forces exerted during an earthquake. Without proper reinforcement, the concrete can crack or collapse under the intense shaking. To strengthen the concrete and mitigate the effects of seismic activity, steel rebars are strategically placed within the concrete, forming a network that increases the tensile strength of the structure. Concrete is strong when compressed but weak when subjected to tension, while steel has excellent tensile strength. By combining the two materials, the rebars effectively distribute the seismic forces throughout the concrete, preventing cracks from spreading and allowing for a more flexible response. Not only do steel rebars improve the tensile strength, but they also enhance the overall stiffness of the structure. This stiffness helps to minimize the building's response to vibrations during an earthquake, reducing the potential for damage. Acting as a backbone, the rebars increase the concrete's resistance to deformation and contribute to the overall structural integrity of the building. Furthermore, steel rebars contribute to the ductility of the structure. Ductility refers to a material's ability to deform under stress without losing its structural integrity. During an earthquake, the building undergoes significant displacement and deformation. Steel rebars allow the concrete to flex and absorb the energy from seismic forces, preventing catastrophic failure. This ductile behavior ensures that the building can withstand the shaking and provides occupants with more time to evacuate safely. In conclusion, steel rebars are essential for improving the seismic performance of concrete buildings. They enhance the tensile strength, stiffness, and ductility of the structure, reducing the risk of damage or collapse during an earthquake. By reinforcing the concrete, steel rebars play a critical role in ensuring the safety and resilience of concrete buildings in areas prone to seismic activity.
- Q:What are the main properties of steel rebars?
- Steel rebars, also known as reinforcing bars, are essential components in reinforced concrete structures. They possess several key properties that make them ideal for providing strength and durability to these structures. 1. Strength: One of the primary properties of steel rebars is their high tensile strength. They can withstand significant pulling forces and provide the necessary reinforcement to resist cracking and structural failure in concrete. 2. Ductility: Steel rebars exhibit excellent ductility, meaning they can deform without fracturing under stress. This property allows them to absorb energy during seismic events or other extreme loads, enhancing the overall structural performance and resilience of the reinforced concrete. 3. Corrosion resistance: Steel rebars are typically manufactured with a protective layer, such as epoxy or galvanized coating, to prevent corrosion. This property is crucial as exposure to moisture, chloride ions, and other corrosive elements can significantly weaken the rebars and compromise the integrity of the structure. 4. Weldability: Steel rebars can be easily welded together, allowing for efficient and effective construction. This property ensures that rebars can be connected to form a continuous and robust reinforcement network, enhancing the overall strength and stability of the concrete structure. 5. Thermal compatibility: Steel rebars have similar thermal expansion and contraction properties to concrete, minimizing the risk of cracking or structural damage due to temperature changes. This compatibility ensures the long-term durability and stability of reinforced concrete structures. 6. Availability and cost-effectiveness: Steel rebars are widely available and relatively cost-effective compared to other reinforcing materials. This affordability, combined with their excellent mechanical properties, makes them a popular choice for structural reinforcement across various construction projects. In conclusion, the main properties of steel rebars include high tensile strength, ductility, corrosion resistance, weldability, thermal compatibility, and cost-effectiveness. These properties make steel rebars indispensable for providing structural strength and durability to reinforced concrete structures.
- Q:Can steel rebars be prefabricated off-site?
- Yes, steel rebars can be prefabricated off-site. Prefabrication involves manufacturing and assembling components, including rebars, in a controlled environment away from the construction site. This method offers numerous advantages, such as improved quality control, reduced construction time, and increased efficiency. Prefabricated steel rebars can be customized, cut, bent, and welded to meet specific project requirements before being transported to the construction site for installation.
- Q:What are the different types of steel rebars used in marine constructions?
- Marine construction commonly utilizes various steel rebars due to their specific properties and resistance to corrosion in saltwater environments. The different types of steel rebars employed in marine constructions are as follows: 1. Stainless steel rebars prove highly resistant to corrosion, making them an ideal choice for marine applications. Their chromium content creates a protective oxide layer on the surface, preventing rust and corrosion. These rebars come in different grades, such as 304 and 316, with 316 being the most commonly used due to its superior corrosion resistance. 2. Galvanized steel rebars, which are carbon steel rebars coated with zinc, act as a barrier against saltwater corrosion. These rebars are cost-effective and widely utilized in marine constructions. 3. Epoxy-coated steel rebars consist of carbon steel rebars coated with epoxy. This coating acts as an effective barrier between the steel and the saltwater environment, providing excellent corrosion protection. Epoxy-coated rebars are commonly employed in marine structures exposed to seawater or other corrosive agents. 4. Fiberglass rebars, made of high-strength glass fibers embedded in a polymer matrix, offer lightweight, non-corrosive alternatives to traditional steel rebars in marine constructions. Additionally, they possess high tensile strength and do not corrode in saltwater environments. 5. Titanium rebars, although more expensive than other steel rebars, are extremely corrosion-resistant and lightweight, making them suitable for marine applications. They are typically used in high-performance marine structures or specific applications where corrosion resistance is crucial. Each type of steel rebar mentioned above possesses unique advantages and limitations. The selection of the appropriate type depends on factors such as project requirements, budget, and environmental conditions. Engineers and designers must consider these factors to ensure the durability and longevity of marine construction structures.
- Q:Are there any limitations to using steel rebars in construction?
- Yes, there are some limitations to using steel rebars in construction. One limitation is that steel rebars can corrode when exposed to moisture and oxygen, especially in environments with high humidity or near coastal areas where saltwater can accelerate corrosion. This can weaken the structure over time and may require regular maintenance and inspections to prevent structural failure. Another limitation is that steel rebars have a high thermal conductivity, which means they can conduct heat and cold more easily than other materials. This can result in increased energy transfer and potentially affect the overall energy efficiency of the building. Steel rebars are also heavy and require specialized equipment for handling and installation. This can increase construction costs and may limit their use in certain applications where weight is a concern, such as in high-rise buildings or in areas with weak soil conditions. In addition, steel rebars are susceptible to electromagnetic interference, which can be a concern in buildings with sensitive electronic equipment or in areas with high levels of electromagnetic radiation. Lastly, steel rebars are not environmentally friendly as their production contributes to carbon dioxide emissions. They also have a high embodied energy, meaning a significant amount of energy is required to manufacture and transport them. Overall, while steel rebars are widely used in construction due to their strength and durability, it is important to consider these limitations and assess whether alternative materials or construction methods would be more suitable for specific projects.
- Q:Can steel rebars be bent or shaped on-site?
- Yes, steel rebars can be bent or shaped on-site using specialized tools and equipment such as rebar benders and rebar cutters. This allows for flexibility in construction projects to meet specific design requirements and ensure proper reinforcement placement.
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Hot Rolled Deformed bars with High Quality
- Ref Price:
-
- Loading Port:
- Tianjin
- 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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