BS4449 G460 Reinforcing Deformed Steel Bar, Rebar, Deformed Rebar
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 m.t.
- Supply Capability:
- 1000 m.t./month
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Quality Product, Order Online Tracking, Timely Delivery
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deformed steel bar grade 40
material: HRB400, BS4449 GR460B
size: 8-36mmx12m.
short delivery time by bulk or container
deformed steel bar grade 40
material: HRB400, BS4449 GR460B
size: 8-36mmx12m.
short delivery time with bulk or container
packing: Mill standard export packing in bundles/coil, around 2tons/bundle.
country of Origin: China
delivery Time: Within a 35 days
Shipment: by bulk vessel or by container
Leading goods:
section steel:angles,channels,I-beam,H-beam;
coils:cold/hot rolled coils,PPGI,galvanized coils,plate,checkered plate,cutting steel plate,steel strip;
wire rod:steel wire,deformed wire,bar;
pipe:seamless pipe,rectangular pipe,welded pipe,spiral welded pipe,pipe fittings;
stainless steel:steel sheets,stainless steel strips,stainless bar,stainless tube;
special:weathering steel,shipbuilding steel;
construction steel:C-channel,Z-channel,T-bar,high-speed divider plate,corrugated steel plate,steel grating.
Advantage:
We are the spot supplier, Six huge warehouses which can hold 20,000 MT goods.
It makes the cost lower than others,we can provide the competitive price for you.
Delivery time:
Normal sizes can be provided in 7days, the others should be ready in 30---45 days.
Further treatment:
We can offer cutting,painting,drilling holes,bending,threading, welding,galvanization,packing etc.
Security interest:
We have already passed the ISO9001, BV and SGS authentication which makes the quality secured.
If you have the interest in any of the products we can provided, pls don't hesitate to connect with me. Looking forward to cooperate with you.
FAQ of Steel Deformed Bar
1. More than 10 years experience in this industry
2. 100,000 tons exporting per month
3. Professional foreign trade tea
4. OEM&ODM capacity
5. High quality assured & competitive price
6. Try our best to meet your needs & save your budget
7. Very popular in Southeast Asia, Africa, Mid-East and South America etc.
8. VIP membership system, first time customers and long-term cooperation customers can get extra discount on some products.
- Q: What are the common misconceptions about steel rebars?
- One common misconception about steel rebars is that they are only used in large construction projects. While it is true that rebars are commonly used in the construction of large buildings, bridges, and other infrastructure, they are also utilized in smaller projects such as residential homes, retaining walls, and even garden structures. Rebars provide strength and reinforcement to concrete structures, ensuring their durability and longevity. Another misconception is that all rebars are the same. In reality, there are various types of rebars available, each with specific characteristics and purposes. Common types include carbon steel rebars, epoxy-coated rebars, stainless steel rebars, and galvanized rebars. These different types are used depending on factors like the environment, exposure to corrosive elements, and specific project requirements. Some people also believe that rebars do not require proper placement or spacing within the concrete structure. However, incorrect placement or inadequate spacing of rebars can lead to structural weaknesses, compromising the integrity of the concrete. It is crucial to follow engineering specifications and guidelines to ensure the rebars are correctly positioned and spaced to provide optimal reinforcement. Another misconception is that steel rebars rust easily. While it is true that steel can corrode when exposed to moisture and oxygen, proper construction practices can significantly minimize this risk. For instance, the use of epoxy-coated or galvanized rebars provides an additional layer of protection against corrosion. Additionally, proper concrete cover and application of protective coatings can help prevent moisture penetration and extend the lifespan of the rebars. Lastly, some people believe that steel rebars are expensive and not cost-effective. While it is true that steel rebars can add to the overall cost of a construction project, they are a necessary investment for ensuring structural integrity and safety. The cost of repairing or replacing a structure due to inadequate reinforcement far outweighs the initial investment in quality rebars. Moreover, the use of rebars can reduce the need for excessive concrete, resulting in cost savings in material and construction time. In conclusion, it is important to dispel common misconceptions about steel rebars. They are not limited to large construction projects, come in different types, require proper placement and spacing, can be protected against corrosion, and are a cost-effective investment for ensuring the durability and safety of concrete structures.
- Q: How do steel rebars help in preventing cracks in concrete?
- The reinforcement of steel rebars is essential for preventing cracks in concrete and adding strength to the structure. Concrete is strong in compression but weak in tension, meaning it can withstand forces that push or compress it, but it is prone to cracking under pulling or bending forces. To counteract this weakness, steel rebars are embedded within the concrete. They act as a framework, distributing tensile forces evenly throughout the material and preventing the formation and spread of cracks. Additionally, rebars reinforce the structure, increasing its resistance to bending, shearing, and external forces. Furthermore, steel rebars enhance the overall structural integrity of the concrete, thus preventing cracks. During the drying and curing process, concrete tends to shrink and crack. However, with the presence of rebars, the tensile forces caused by shrinkage are absorbed by the steel, reducing or eliminating the formation of cracks. Moreover, steel rebars provide resistance against temperature changes and external loads, which also helps prevent cracks in concrete. They control the expansion and contraction of the material due to temperature fluctuations, minimizing the risk of cracking. Additionally, rebars reinforce the concrete against heavy loads, such as those from traffic or seismic activity, ensuring the structure remains intact and free from cracks. In conclusion, steel rebars are crucial in preventing cracks in concrete by reinforcing the material, distributing forces, absorbing tensile stresses, and enhancing structural integrity. Their presence significantly improves the durability and longevity of concrete structures, making them more resistant to cracking and ensuring their stability over time.
- Q: Are there any limitations to using steel rebars in construction?
- Using steel rebars in construction has its limitations. For one, they can corrode when exposed to moisture and oxygen, especially in high humidity or coastal areas where saltwater can speed up corrosion. This corrosion weakens the structure over time, necessitating regular maintenance and inspections to prevent structural failure. Another limitation is their high thermal conductivity, which means they conduct heat and cold more easily than other materials. This can lead to increased energy transfer and potentially impact the overall energy efficiency of the building. Moreover, steel rebars are heavy and require specialized equipment for handling and installation. This raises construction costs and may restrict their use in applications where weight is a concern, such as high-rise buildings or areas with weak soil conditions. Further, steel rebars are vulnerable to electromagnetic interference, which can be problematic in buildings with sensitive electronic equipment or areas with high levels of electromagnetic radiation. Lastly, steel rebars are not environmentally friendly. Their production contributes to carbon dioxide emissions, and they have a high embodied energy, requiring a significant amount of energy for manufacturing and transportation. In conclusion, while steel rebars are widely utilized in construction for their strength and durability, it is crucial to consider these limitations and evaluate whether alternative materials or construction methods would be more appropriate for specific projects.
- Q: What is the role of steel rebars in preventing concrete spalling due to fire?
- Steel rebars play a crucial role in preventing concrete spalling due to fire by providing reinforcement and structural integrity to the concrete. When exposed to high temperatures during a fire, concrete can undergo thermal expansion, which can lead to cracking and spalling. However, the presence of steel rebars helps to restrain the expansion and prevent the concrete from breaking apart. The rebars act as a reinforcement, distributing the stresses caused by the heat and preventing the concrete from failing under the extreme conditions. Overall, steel rebars enhance the fire resistance of concrete structures and help maintain their structural integrity during a fire event.
- Q: What is the role of steel rebars in increasing the load-carrying capacity of a structure?
- The role of steel rebars in increasing the load-carrying capacity of a structure is to provide reinforcement and strength to the concrete. The rebars act as tension members, resisting the tensile forces that the concrete alone cannot handle effectively. By adding steel rebars to the structure, it becomes more resistant to bending, cracking, and failure under heavy loads. The rebars distribute the applied load across a larger area, enhancing the overall structural integrity and allowing for greater load-carrying capacity.
- Q: How are steel rebars tested for quality and strength?
- Steel rebars are tested for quality and strength through a series of standardized tests. These tests ensure that the rebars meet the required standards and can withstand the expected loads and stresses. One common test is the Tensile Test, which measures the maximum amount of stress a rebar can withstand before it breaks. In this test, a sample rebar is pulled until it fractures, and the force required to break it is measured. This test provides valuable information about the rebar's ultimate tensile strength, yield strength, and elongation. Another important test is the Bend Test, which evaluates the rebar's ductility and ability to withstand bending without breaking. In this test, a sample rebar is bent to a specific angle, and any cracks or fractures are closely examined. The rebar is deemed acceptable if it doesn't show any signs of failure. Additionally, Chemical Analysis is performed to determine the chemical composition of the rebar. This test ensures that the steel meets the required chemical composition standards, as different compositions can affect the rebar's strength and durability. Furthermore, the Dimensional Test checks the dimensions, weight, and shape of the rebar to ensure they comply with the specified standards. Any deviations from the required measurements can compromise the rebar's structural integrity. Moreover, the rebar's Surface Condition is examined visually to assess any signs of rust, cracks, or other defects that may affect its performance. Proper surface condition is crucial as it ensures good bonding with the surrounding concrete. Finally, some rebars undergo Non-Destructive Testing such as ultrasonic testing or magnetic particle inspection to detect any hidden defects or cracks that may not be visible to the naked eye. Overall, these testing methods are employed to ensure that steel rebars have the required quality and strength to be used in construction projects, providing the necessary reinforcement for reinforced concrete structures.
- Q: Can steel rebars be used in pedestrian bridge construction?
- Yes, steel rebars can be used in pedestrian bridge construction. Steel rebars provide strength and durability to the bridge structure, making them a commonly used material for reinforcing concrete in bridge construction projects.
- Q: What are the advantages of using corrosion-resistant steel rebars?
- There are several advantages of using corrosion-resistant steel rebars in construction projects. Firstly, corrosion-resistant steel rebars offer enhanced durability and longevity. Regular steel rebars are prone to corrosion when exposed to moisture and chemicals, which can significantly reduce their lifespan. However, corrosion-resistant steel rebars are specifically designed to resist corrosion, ensuring a longer service life for the structure. This is particularly beneficial in environments with high humidity, coastal areas, or regions with high levels of pollution. Secondly, the use of corrosion-resistant steel rebars helps in maintaining the structural integrity of the building. Corrosion can weaken the rebars, leading to structural failures and safety hazards. By using corrosion-resistant steel rebars, the risk of corrosion-induced structural damage is minimized, ensuring the safety of the occupants and the overall stability of the structure. Additionally, the maintenance costs associated with corrosion-resistant steel rebars are significantly lower compared to regular steel rebars. Structures built with regular steel rebars require frequent inspections, repairs, and maintenance to prevent and address corrosion issues. However, corrosion-resistant steel rebars reduce the need for such maintenance, resulting in reduced costs over the lifespan of the structure. Furthermore, corrosion-resistant steel rebars offer increased flexibility in design and construction. The properties of these rebars allow for the construction of thinner and lighter structures without compromising on strength. This can lead to cost savings in terms of materials and construction time, making corrosion-resistant steel rebars a cost-effective solution. Lastly, the use of corrosion-resistant steel rebars contributes to sustainable construction practices. By increasing the lifespan of the structure and reducing the need for maintenance, the environmental impact of the construction project is minimized. Additionally, the use of these rebars can contribute to obtaining green building certifications, promoting sustainable and environmentally-friendly construction practices. In conclusion, the advantages of using corrosion-resistant steel rebars include enhanced durability, improved structural integrity, reduced maintenance costs, increased design flexibility, and promoting sustainable construction practices.
- Q: How to calculate the theory of steel thread?
- Thread: a spirally curved, continuous raised part with a specified cross section on the surface of a cylinder or cone. According to its parent thread shape is divided into cylindrical and conical screw threads; according to their position in the matrix is divided into outer and inner thread, according to the section shape (teeth) divided into triangular thread, rectangular screw, trapezoidal thread, serrated thread and other special shape screw.
- Q: What is the purpose of ribbing on a steel rebar?
- The purpose of ribbing on a steel rebar is to enhance the bond between the rebar and the surrounding concrete. The ribs, which are raised deformations along the length of the rebar, create a larger surface area for the concrete to grip onto. This increased surface area improves the mechanical interlock between the rebar and concrete, resulting in better load transfer and enhanced structural integrity. The ribbing also helps to prevent slippage or movement of the rebar within the concrete, ensuring that the reinforcement remains in its intended position, even under heavy loads or seismic activity. Overall, the ribbing on a steel rebar plays a crucial role in improving the performance and durability of reinforced concrete structures.
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BS4449 G460 Reinforcing Deformed Steel Bar, Rebar, Deformed Rebar
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 m.t.
- Supply Capability:
- 1000 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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