Reinforcing Steel Rebar BS4449 ASTM A615 DCL
- Ref Price:
-
- Loading Port:
- Guangzhou
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 m.t.
- Supply Capability:
- 19000 m.t./month
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Specification
Rebar is common steel reinforcing bar, an important component of reinforced concrete and reinforced masonry structures.
It is usually formed from mild steel, and is given ridges for better frictional adhesion to the concrete.
Concrete is a material that is very strong in compression, but virtually without strength in tension. To compensate for this
imbalance in concrete's behavior, rebar is formed into it to carry the tensile loads.
Most grades of steel used in rebar cannot accept welding; such as, to adjacent steel plates or as means to bind single pieces of rebar together. However, special grades of rebar steel and welding rods make welding by expert welders possible.
To prevent workers from accidentally impaling themselves, the protruding ends of steel rebar are often bent over or covered with special plastic "mushroom" caps.
Features
1、Pure steel quality, stable chemical contents, small tolerance.
2、Constant Quality, good drawing performance.
3、High dimension accuracy degree, accuracy degree of Level C up to 80%, smooth surface, less scale, easy to be pickled.
4、Automatic bundling with 4 lines by Machine in tidy and good looks
5、Big high quality percentage, small coil percentage, and heavy coil weight for Hard Coil.
6、High sorbitizing percentage.
Product Description :
Chemical composition (%): | Steel | C | Si | Mn | P | S | Ceq | ||||
HRB335 |
0.25 |
0.80 |
1.60 |
0.045 |
0.045 | 0.52 | |||||
HRB400 | 0.54 | ||||||||||
HRB500 | 0.55 | ||||||||||
Mechanical properties | Steel | Rel/ MPa | Rm/ MPa | A/ % | Agt/ % | ||||||
≥ | |||||||||||
HRB335 | 335 | 455 | 17 |
7.5 | |||||||
HRB400 | 400 | 540 | 16 | ||||||||
HRB500 | 500 | 630 | 15 | ||||||||
Package: | Standard export packing or as customer's request | ||||||||||
Application: | Construction, building, bridge, road. ect | ||||||||||
Payment terms | 1).100% irrevocable L/C at sight. | ||||||||||
Delivery time | 15-30 days after receipt of L/C or deposit by T/T | ||||||||||
Packing:
In bundles, each bundle weight 3.5 tons. Load by container or by bulk verssel.
Our service
(1) We cooperate with famous factories with advanced equipment and well trained workers.
(2) We can provide factory price with trading company service.
(3) We continuously work on the improvement of our processes, guaranteeing consistently high standards
of quality to keep none compensation.
(4) We guarantee 24 hours response and 48 hours solution providing service.
(5) We accept small order quantity before formal cooperation.
(6) We deliver the agreed quality at the agreed time, reacting to changes in customer wishes in a flexible way.
(7) Due to our volume and selling power, we have excellent freight rates with shipping lines.
(8) We strive to always be fair and honest in our dealings with customers.
(9) We strive to work together with customers to achieve much more than we can achieve alone.
(10) Through our passion and commitment we aim to be a market leader in all our key markets. To maintain
our position as market leader we must continue to add value in all that we do.
FAQ:
1.Q: What's your MOQ(minimum order quantity)?
A: One full container, mixed acceptable .
2. Q: What's your packing methods?
A: Packed in bundle or bulk ..
3. Q: How can I buy CNBM products in my country?
A:Please send us an inquiry or email ,we will reply to you if there is distributor in your country
4. Q: Can we visit your factory?
A: Warmly welcome. Once we have your schedule, we will arrange the professional sales team to follow up your case.
5. Q: How long does it take to get the product if i place an order?
A:With the process of your requirements,we will pack and deliver in 3-7 days. If it is by sea shipment,it will take 15-45 days depending on different locations
- Q: What are the main uses of steel rebars?
- The main uses of steel rebars include reinforcing concrete structures, such as buildings, bridges, and highways, to increase their strength and durability. They are also used in the construction of retaining walls, tunnels, and other underground structures. Additionally, steel rebars are commonly utilized in the manufacturing of various industrial equipment and machinery.
- Q: What are the advantages of using fiber-reinforced polymer (FRP) rebars over steel rebars?
- There are several advantages of using fiber-reinforced polymer (FRP) rebars over traditional steel rebars in construction projects: 1. Corrosion resistance: One of the main advantages of FRP rebars is their excellent resistance to corrosion. Unlike steel rebars, which are prone to rust and deterioration when exposed to moisture and chemicals, FRP rebars do not corrode. This property significantly increases the durability and lifespan of structures, particularly in harsh environmental conditions. 2. Lightweight: FRP rebars are significantly lighter than steel rebars, making them easier to handle, transport, and install. This lightweight characteristic also reduces the overall dead load of a structure, allowing for more efficient design and construction. 3. High strength-to-weight ratio: Despite being lightweight, FRP rebars have a high strength-to-weight ratio, meaning they can carry heavy loads while still maintaining their structural integrity. This property makes FRP rebars ideal for applications where weight reduction is desired without compromising on strength, such as in bridge decks and seismic reinforcement. 4. Non-magnetic and non-conductive: Unlike steel rebars, FRP rebars are non-magnetic and non-conductive. This feature is particularly advantageous in structures that require non-magnetic properties, such as MRI rooms in hospitals, or in situations where electrical conductivity needs to be minimized, such as in power plants or near electrical equipment. 5. Design flexibility: FRP rebars can be manufactured in various shapes and sizes, offering design flexibility and customization options to meet specific project requirements. They can be easily cut and shaped on-site, allowing for easy integration into complex geometries and curved structures. 6. Thermal compatibility: FRP rebars have a low coefficient of thermal expansion, which means they expand and contract at a similar rate to the surrounding concrete. This thermal compatibility minimizes the risk of cracking and ensures better long-term performance of the structure, particularly in areas with extreme temperature variations. 7. Excellent durability: FRP rebars exhibit excellent long-term durability, even in aggressive environments. They are resistant to alkalis, chemicals, and UV radiation, ensuring their performance and structural integrity over an extended period. 8. Environmental friendliness: FRP rebars are considered more environmentally friendly than steel rebars due to their minimal carbon footprint. They require less energy to produce and generate fewer greenhouse gas emissions during manufacturing. Additionally, FRP rebars are non-toxic and do not pose a threat to the environment during their lifespan or at the end of their service life. Overall, the advantages of using FRP rebars over steel rebars make them a viable alternative in various construction applications, offering improved durability, lightweight design, corrosion resistance, and enhanced structural performance.
- Q: Why is thread steel thinner than crude?
- Because the surface has a thread shape, it can increase the firm bond with the concrete. The longitudinal reinforcement and stirrups shall be used preferentially in the concrete members. Because the rebar is low alloy steel and its price is higher than that of low carbon round steel, the construction unit or design unit usually starts from the practical angle of the general civil building
- Q: What is the purpose of using steel rebars in construction?
- The purpose of using steel rebars in construction is to provide reinforcement and strength to concrete structures. Steel rebars enhance the structural integrity of buildings, bridges, and other constructions by improving their resistance to tension forces, preventing cracks, and enhancing overall durability.
- Q: What is the role of steel rebars in minimizing the risk of concrete spalling due to sulfate attack?
- Steel rebars play a crucial role in minimizing the risk of concrete spalling due to sulfate attack by providing reinforcement and increasing the overall strength of the concrete structure. When concrete is exposed to sulfate ions, it can undergo a chemical reaction that leads to expansion and cracking, resulting in spalling. However, steel rebars act as a reinforcement, helping to distribute the stress and load throughout the concrete, reducing the risk of cracking and spalling. Additionally, the presence of rebars helps to maintain the structural integrity of the concrete, preventing the ingress of sulfate ions and minimizing the potential for sulfate attack.
- Q: How are steel rebars different from other types of reinforcement?
- Steel rebars are different from other types of reinforcement primarily because they are made of steel, which gives them high tensile strength and durability. Unlike other materials like wood or concrete, steel rebars can withstand heavy loads and provide structural integrity to reinforced concrete structures. Additionally, steel rebars can be easily molded and shaped into various designs, making them versatile and suitable for different construction applications.
- Q: How do steel rebars affect the structural integrity of a building?
- Steel rebars play a crucial role in enhancing the structural integrity of a building. They are used to reinforce concrete structures by providing extra strength and resistance to various forces, such as tension, compression, and bending. The inclusion of steel rebars helps to distribute loads more evenly, prevent cracks, and increase the overall durability and stability of the building.
- Q: Can steel rebars be used in the renovation of historic structures?
- Yes, steel rebars can be used in the renovation of historic structures. The use of steel rebars can help reinforce the existing structure, improve its stability, and ensure compliance with modern safety standards. However, it is important to carefully consider the impact on the historical integrity of the structure and consult with preservation experts to ensure that any modifications are done in a sensitive and appropriate manner.
- Q: What are the guidelines for inspecting steel rebars on a construction site?
- Inspecting steel rebars on a construction site requires adherence to specific guidelines to ensure the structural integrity and compliance with safety standards. Here are some essential guidelines for inspecting steel rebars: 1. Visual Inspection: Begin by visually assessing the entire rebar installation, checking for any signs of damage, rust, or corrosion. Look for proper alignment, spacing, and placement of rebars as per the construction drawings. 2. Rebar Size and Type: Verify that the rebars used match the specifications outlined in the construction plans. Inspect the size, grade, and type of steel rebars to ensure they meet the required standards and are suitable for the intended load-bearing capacity. 3. Placement and Spacing: Ensure that rebars are properly spaced and positioned according to the design drawings. Check for proper lap length (the overlapping of rebars) to ensure structural stability and load distribution. 4. Clear Cover: Inspect the clear cover, which is the distance between the outer surface of the rebar and the surface of the concrete. Verify that the clear cover meets the specified requirements, as it is crucial for corrosion protection and structural durability. 5. Vertical Alignment: Check the vertical alignment or plumbness of the rebars. They should be straight and in line with the required position, avoiding excessive bending or curving. 6. Rebar Connections: Inspect the connections between rebars, such as lap splices or mechanical couplers. Verify that the connections are properly made and comply with approved construction standards. 7. Welding: If welding is used to join rebars, ensure that it is performed by certified welders and meets the required specifications. Inspect the quality of welding joints, including the penetration depth and the absence of defects or cracks. 8. Protective Coating: Verify the presence and condition of any protective coating applied to the rebar, such as epoxy coatings or galvanization, to prevent corrosion and increase longevity. 9. Documentation: Maintain detailed records of the inspection process, including photographs, measurements, and any deviations or corrective actions taken. These records will serve as essential documentation for quality control and future reference. 10. Compliance with Codes and Standards: Ensure that the inspection adheres to relevant local building codes, industry standards, and project specifications. Familiarize yourself with the applicable regulations to ensure compliance throughout the inspection process. By following these guidelines, construction site inspectors can help ensure the quality, safety, and longevity of steel rebars, ultimately contributing to the overall success of the construction project.
- Q: What is the impact of steel rebars on the carbon footprint of a structure?
- The carbon footprint of a structure is greatly affected by the utilization of steel rebars in construction. Steel production is widely recognized as a carbon-intensive process, leading to the emission of greenhouse gases and contributing to climate change. The extraction and processing of iron ore, in addition to the energy-intensive procedures involved in transforming it into steel, generate substantial amounts of carbon dioxide (CO2). Commonly employed to reinforce concrete structures like buildings, bridges, and highways, steel rebars play a significant role in the carbon emissions associated with a structure. The manufacture of cement, a crucial constituent of concrete, also serves as a major source of carbon emissions. Consequently, both steel production and concrete manufacturing processes influence the carbon footprint of a structure. Nevertheless, it is important to acknowledge the potential positive impact of steel rebars on a structure's carbon footprint. Steel possesses exceptional durability and can outlast the structure itself. This longevity diminishes the necessity for frequent maintenance, repairs, and replacements, which would otherwise consume additional resources and emit more carbon. Furthermore, steel rebars enhance the structural strength and resilience of a building, enabling it to withstand extreme weather events and seismic activities. This heightened durability prolongs the lifespan of the structure, reducing the requirement for new construction and the associated carbon emissions in the long term. Efforts are being made to mitigate the carbon footprint of steel rebars by enhancing the efficiency of steel production processes. This includes the adoption of cleaner technologies and the utilization of recycled steel. Additionally, there is a growing inclination towards incorporating sustainable materials such as bamboo or fiber-reinforced polymers as alternatives to steel rebars in construction. To conclude, although the production of steel rebars generates a substantial carbon footprint, their use in construction can contribute to the overall sustainability of a structure by providing durability and diminishing the need for frequent replacements. However, it is crucial to consistently explore and implement more sustainable alternatives to steel rebars in order to further minimize the carbon impact of construction.
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Reinforcing Steel Rebar BS4449 ASTM A615 DCL
- Ref Price:
-
- Loading Port:
- Guangzhou
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 m.t.
- Supply Capability:
- 19000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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