GB Standard HRB400 Steel Deformed Bar 10mm/12mm
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 25 m.t
- Supply Capability:
- 20000 m.t/month
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GB Standard HRB400 Steel Deformed Bar 10mm/12mm
Description:
-Standard: GB
-Material: HRB400
-Specification:
| Diameter(mm) | Section Area(mm2) | Mass(Kg/m) | Length(m) |
| 10 | 78.54 | 0.617 | 9, 12 or as customs' request |
| 12 | 113.1 | 0.888 | 9, 12 or as customs' request |
Chemical Composition(%) of GB Standard HRB400 Steel Deformed Bar 10mm/12mm:
| C | Mn | Si | S | P | V |
| ≤0.25 | ≤1.60 | ≤0.08 | ≤0.045 | ≤0.045 | 0.04-0.12 |
Mechanical Properties of GB Standard HRB400 Steel Deformed Bar 10mm/12mm:
Yield Strength (N/cm²) | Tensile Strength (N/cm²) | Elongation (%) |
≥400 | ≥570 | ≥14 |
Usage and Applications of GB Standard HRB400 Steel Deformed Bar 10mm/12mm:
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.
Packaging & Delivery of GB Standard HRB400 Steel Deformed Bar 10mm/12mm:
Packaging Detail: products are packed in bundle and then shipped by container or bulk vessel, deformed bar is usually naked strapping delivery, when storing, please pay attention to moisture proof. The performance of rust will produce adverse effect.
Each bundle weight: 2-3MT, or as required
Payment term: TT or L/C
Delivery Detail: within 45 days after received advanced payment or LC.
Label: to be specified by customer, generally, each bundle has 1-2 labels
Trade terms: FOB, CFR, CIF
Images of GB Standard HRB400 Steel Deformed Bar 10mm/12mm:
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- Q: Are steel rebars suitable for use in industrial facilities?
- Yes, steel rebars are suitable for use in industrial facilities. They provide excellent strength and durability, making them ideal for reinforcing concrete structures in such facilities. Steel rebars can withstand heavy loads and extreme conditions, ensuring the safety and long-term stability of industrial buildings and infrastructure.
- Q: Are steel rebars suitable for use in earthquake-resistant structures?
- Indeed, steel rebars are a suitable choice for incorporation into earthquake-resistant structures. Commonly referred to as reinforcing bars, steel rebars are frequently utilized in construction projects to provide structural strength and reinforcement. They have been proven to effectively enhance the strength and ductility of concrete structures, rendering them more resistant to seismic forces. During the occurrence of an earthquake, structures are subjected to vigorous shaking and ground motion. Steel rebars play a pivotal role in evenly distributing and dissipating the energy generated by these seismic forces, thus decreasing the susceptibility of a structure to damage or collapse. Their utilization contributes to the overall enhancement of structural integrity and stability, empowering buildings and other infrastructure to endure the lateral and vertical forces associated with earthquakes. Furthermore, steel rebars possess exceptional tensile strength, which is paramount for seismic resistance. In contrast to concrete, which excels in compression but lacks resilience in tension, steel rebars furnish the necessary reinforcement to counteract tensile stresses induced by seismic activity. This capability to withstand both compression and tension renders steel rebars an optimal selection for earthquake-resistant structures. In addition, steel rebars can be configured and installed in a manner that provides additional ductility to a structure. Ductility denotes the capacity of a material to undergo deformation without fracturing. Structures exhibiting greater ductility can experience significant deformations and absorb energy during an earthquake, consequently diminishing the likelihood of catastrophic failure. Steel rebars are renowned for their elevated ductility, affording them the ability to effectively absorb and dissipate seismic energy. To conclude, steel rebars prove to be highly appropriate for inclusion in earthquake-resistant structures. Their strength, capacity to withstand both compression and tension, and exceptional ductility position them as indispensable components in guaranteeing the structural integrity and safety of buildings and infrastructure in regions prone to seismic activity.
- Q: What are the different types of steel used in the production of rebars?
- There are several different types of steel that are commonly used in the production of rebars. The choice of steel depends on various factors such as the desired strength, corrosion resistance, and cost. 1. Mild Steel: This is the most common type of steel used in rebars. It has a low carbon content and is relatively inexpensive. Mild steel rebars are suitable for general construction purposes where high strength is not a requirement. 2. High Strength Deformed Bars (HSD): HSD bars are made from carbon steel with higher yield and tensile strength compared to mild steel. These rebars are commonly used in reinforced concrete structures that require higher load-bearing capacity, such as bridges and high-rise buildings. 3. Carbon Steel: Carbon steel rebars are made from steel alloyed with carbon, which enhances its strength and durability. These rebars are often used in construction projects that require resistance to extreme temperatures and high tensile strength. 4. Stainless Steel: Stainless steel rebars contain a high amount of chromium, which provides excellent corrosion resistance. These rebars are commonly used in coastal areas or structures exposed to high humidity, as they prevent rusting and maintain structural integrity over time. 5. Epoxy-Coated Steel: Epoxy-coated rebars are made by applying a protective coating of epoxy resin on the surface of the steel. This coating provides an additional layer of corrosion resistance, making these rebars suitable for structures exposed to harsh environmental conditions or chemicals. 6. Galvanized Steel: Galvanized rebars are coated with a layer of zinc, which provides excellent corrosion protection. They are commonly used in areas with high humidity, where corrosion is a significant concern. 7. Alloy Steel: Alloy steel rebars are made by adding various elements such as manganese, nickel, or chromium to enhance their mechanical properties. These rebars offer increased strength, improved ductility, and resistance to fatigue, making them suitable for specialized applications such as seismic zones or heavy construction. It is essential to select the appropriate type of steel rebar based on the specific requirements of the construction project to ensure durability, safety, and longevity of the structure.
- Q: What are the factors that determine the selection of steel rebars?
- The selection of steel rebars for construction projects depends on several factors. Among these factors, the required strength and durability of the structure are of utmost importance. Different grades of steel rebars possess varying yield strengths, indicating their capacity to withstand stress before deformation occurs. The strength required for the rebars is determined by the design and load-bearing capacity of the structure. Another factor to consider is the corrosion resistance of the rebars. Steel rebars are prone to corrosion, especially when exposed to moisture and other environmental elements. In regions with high humidity or near coastal areas, it may be necessary to use corrosion-resistant rebars to ensure the project's longevity and structural integrity. The size and shape of the rebars also play a significant role in the selection process. The rebar's diameter is determined by structural requirements and the thickness of the concrete cover. Additionally, the rebar's shape, whether plain, deformed, or ribbed, affects its bonding with the surrounding concrete. Availability and cost are also important considerations. Certain regions may have easier access to specific grades or types of steel rebars, while others may require importing them. The cost of the rebars also influences the selection, as different grades and types have varying price points. Lastly, compliance with local building codes and regulations is crucial. These codes establish minimum standards for strength, corrosion resistance, and other factors that rebars used in construction must meet. Overall, the selection of steel rebars is determined by the required strength, corrosion resistance, size and shape, availability and cost, and compliance with local building codes and regulations. By considering these factors, engineers and construction professionals can choose the most suitable rebars for their projects, ensuring safety, durability, and cost-effectiveness.
- Q: Can steel rebars be used in road construction projects?
- Indeed, road construction projects can utilize steel rebars. Steel rebars are frequently employed as reinforcement in concrete structures, such as roads, contributing to the overall sturdiness and endurance of the road by fortifying the concrete. Typically positioned within the concrete pavement, these rebars furnish tensile strength, effectively preventing cracks or fractures when subjected to heavy loads. Notably, steel rebars possess corrosion-resistant properties, a crucial attribute for road construction projects, given their exposure to moisture and inclement weather. Consequently, incorporating steel rebars into road construction ventures serves to enhance both the road's structural integrity and longevity.
- Q: Can steel rebars be used in underground parking structures?
- Yes, steel rebars can be used in underground parking structures. They are commonly used in the construction of reinforced concrete structures, including underground parking decks, to provide additional strength and durability to the concrete. Steel rebars help to reinforce the concrete and enhance its load-bearing capacity, making them essential components in underground parking structures.
- Q: How do steel rebars affect the overall thermal expansion of concrete structures?
- Steel rebars have a significant impact on the overall thermal expansion of concrete structures. Due to the difference in thermal expansion coefficients between steel and concrete, the rebars tend to expand and contract at a different rate compared to the surrounding concrete. This mismatch in thermal expansion can lead to internal stresses and potential cracking in the concrete. However, the presence of steel rebars also provides reinforcement and increases the tensile strength of the structure, which can help counteract these effects and enhance overall durability.
- Q: What are the different methods of reinforcing concrete structures using steel rebars?
- Steel rebars can be used in several ways to reinforce concrete structures. The first method is called traditional reinforcement. This involves placing the rebars in the formwork before pouring the concrete. They are positioned in a specific pattern and secured with wire or tie rods to ensure they stay in place. This method is commonly used for reinforcing columns, beams, and slabs. Another method is pre-stressed reinforcement. This involves pre-stressing the high-strength rebars before placing them in the concrete structure. The rebars are stretched and anchored to resist the tensile forces on the structure. This method is commonly used in bridges and large-span structures that require high strength and durability. Post-tensioning is a technique used to reinforce concrete structures after the concrete has hardened. Steel tendons are inserted into pre-determined ducts or sleeves within the concrete and tension is applied using hydraulic jacks. This helps counteract the tensile forces and increase the strength and load-carrying capacity of the structure. Instead of using traditional steel rebars, fiber reinforcement involves adding small fibers made of materials like glass, polypropylene, or steel to the concrete mix. These fibers help distribute and control cracks caused by shrinkage or thermal expansion. Fiber reinforcement is often used in industrial flooring, shotcrete, and precast concrete products. Reinforced concrete masonry is another method where steel rebars are inserted into the mortar joints of concrete masonry units (CMUs). The rebars are placed vertically and horizontally at specific intervals and then grouted to ensure a solid bond between the rebars and the CMUs. In summary, these different methods of reinforcing concrete structures using steel rebars provide engineers and designers with various options to enhance strength, durability, and load-carrying capacity based on project requirements.
- Q: What is the composition of steel rebars?
- Steel rebars, also known as reinforced steel bars or reinforcing bars, are commonly used in construction projects to provide strength and reinforcement to concrete structures. The composition of steel rebars typically consists of primarily iron, with varying amounts of carbon and other alloying elements. The main component of steel rebars is iron, which provides the base material for their construction. Iron is combined with carbon to form steel, and the carbon content in rebars is generally around 0.2-0.3% by weight. This carbon content helps enhance the strength and hardness of the steel, making it suitable for reinforcing concrete structures. In addition to iron and carbon, steel rebars may also contain small amounts of other alloying elements, such as manganese, silicon, and sulfur. These elements are added in controlled quantities to improve specific properties of the steel, such as its durability, corrosion resistance, and weldability. Moreover, steel rebars are often produced with a ribbed or deformed surface to enhance their bond with the surrounding concrete. These surface deformations create a mechanical interlock between the rebar and the concrete, increasing the overall strength and stability of the reinforced structure. It is important to note that the exact composition of steel rebars may vary depending on the specific grade or standard being followed. Different countries and organizations may have their own specifications for steel rebars, which can dictate the allowable range of alloying elements and other parameters. Overall, the composition of steel rebars primarily consists of iron, carbon, and small amounts of other alloying elements, with the specific details varying based on the grade and standard being used.
- Q: Can steel rebars be used in structures with aggressive chemical exposure?
- When working with structures that are exposed to aggressive chemicals, it is crucial to take precautions to prevent the corrosion of steel rebars. Over time, the corrosion weakens the structure. To minimize this risk, it is possible to apply corrosion-resistant coatings or materials to the rebars. These coatings create a barrier between the rebars and the aggressive chemicals, reducing the likelihood of corrosion by preventing direct contact. Moreover, it is necessary to regularly inspect and properly maintain the rebars to detect any signs of corrosion and take appropriate action. By implementing these protective measures, steel rebars can be safely utilized in structures exposed to aggressive chemicals.
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GB Standard HRB400 Steel Deformed Bar 10mm/12mm
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 25 m.t
- Supply Capability:
- 20000 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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