China supplier Metallic material steel rebar
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1000 m.t.
- Supply Capability:
- 17497 m.t./month
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Specification
Rebar has ridges that bind it mechanically to the concrete with friction, it can still be pulled out of the concrete
under high stresses, an occurrence that often precedes a larger-scale collapse of the structure. To prevent such
a failure, rebar is either deeply embedded into adjacent structural members, or bent and hooked at the ends to lock
it around the concrete and other rebars. This first approach increases the friction locking the bar into place while the
second makes use of the high compressive strength of concrete.
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
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 | ||||||||||
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.
Packing:
In bundles, each bundle weight 3.5 tons. Load by container or by bulk verssel.
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 guidelines for the proper installation of steel rebars?
- The proper installation of steel rebars is crucial for ensuring the structural integrity and durability of reinforced concrete structures. Here are some guidelines to follow for their proper installation: 1. Planning and Design: Before beginning the installation, it is important to have a detailed plan and design in place. This includes determining the required rebar size, spacing, and configuration based on the structural requirements and specifications. Consulting structural engineers and adhering to local building codes and regulations is essential. 2. Cutting and Bending: Rebars should be cut and bent accurately according to the design specifications. Proper tools such as rebar cutters and benders should be used to ensure clean cuts and precise bends. Any damaged or corroded rebars should be discarded and replaced. 3. Cleaning and Preparation: The surface of the rebars must be free from any contaminants like rust, oil, dirt, or loose scales before installation. Cleaning the rebars using wire brushes or air blasting is recommended to ensure proper adhesion between the rebar and concrete. 4. Placement and Positioning: The rebars should be placed and positioned accurately as per the design drawings. They should be securely tied or supported using tie wires or rebar chairs to maintain the desired spacing and alignment. Splices should be made in accordance with the design requirements and properly lapped to ensure continuity and strength. 5. Concrete Cover: The rebars should be adequately covered with concrete to protect them from corrosion and provide fire resistance. The concrete cover thickness should meet the design specifications and local building codes. Proper spacing between rebars and formwork should be maintained to allow proper concrete flow and consolidation. 6. Anchorage and Embedment: Adequate anchorage and embedment of rebars are essential for transferring loads and ensuring structural stability. Special care should be taken to provide proper hooks, bends, or mechanical anchorage at the ends of rebars as per the design requirements. The rebars should be properly embedded into the adjacent concrete elements to achieve the desired bond strength. 7. Inspection and Quality Control: Regular inspection should be carried out during the installation process to ensure compliance with the design specifications and quality standards. Any deviations or defects should be identified and rectified promptly. It is important to document the installation process and maintain proper records for future reference. By following these guidelines, the proper installation of steel rebars can be achieved, ensuring the structural strength, longevity, and safety of reinforced concrete structures.
- Q: What is the average lifespan of steel rebars in marine environments?
- Several factors can influence the average lifespan of steel rebars in marine environments. On the whole, these rebars tend to last between 50 and 100 years in such settings. This estimate considers the corrosive properties of saltwater, which can hasten the decay of steel structures. Furthermore, the quality of the steel, the marine structure's design and construction, and maintenance practices can all impact the rebars' lifespan. Regular inspections, the application of protective coatings, and appropriate maintenance can effectively prolong the rebars' longevity in marine environments.
- Q: How do steel rebars affect the thermal properties of concrete?
- Steel rebars can have both positive and negative effects on the thermal properties of concrete. On one hand, the presence of steel rebars can increase the overall thermal conductivity of the concrete. This means that heat can be transferred more easily through the concrete, allowing for a more efficient heat transfer and distribution within the structure. This can be beneficial in applications where thermal conductivity is desired, such as in buildings with radiant heating systems. On the other hand, the thermal expansion and contraction characteristics of steel and concrete are different. This difference in thermal expansion coefficients can lead to the development of thermal stresses and potential cracking within the concrete, especially during temperature variations. These cracks can compromise the structural integrity of the concrete and may require additional reinforcement measures to mitigate the effects. Overall, the presence of steel rebars can impact the thermal properties of concrete by increasing its thermal conductivity and potentially leading to the development of thermal stresses and cracks. It is important to consider these factors during the design and construction process to ensure the desired performance and longevity of the concrete structure.
- Q: What is the role of steel rebars in the construction of power transmission towers?
- Steel rebars play a crucial role in the construction of power transmission towers as they provide strength, durability, and structural stability. They are used to reinforce the concrete foundations and structural components of the towers, ensuring that they can withstand the weight, wind loads, and other environmental factors. This reinforcement helps prevent cracks, bending, and collapse, thus ensuring the safety and longevity of the power transmission towers.
- Q: Are steel rebars suitable for use in sports stadiums and arenas?
- Yes, steel rebars are commonly used in sports stadiums and arenas due to their strength, durability, and ability to withstand heavy loads, making them suitable for such structures.
- Q: What are the common problems associated with steel rebars in construction?
- Some common problems associated with steel rebars in construction include corrosion, improper placement or spacing, inadequate cover, poor welding or splicing, and lack of proper anchorage.
- Q: Are steel rebars resistant to corrosion?
- Yes, steel rebars are resistant to corrosion.
- Q: Can steel rebars be bent or shaped during construction?
- Yes, steel rebars can be bent or shaped during construction. Steel rebars are commonly used in reinforced concrete structures to provide strength and stability. They are typically manufactured in straight lengths but can be easily bent or shaped to fit the specific design requirements of the construction project. This flexibility allows contractors to customize the rebars to reinforce different areas of the structure, such as columns, beams, or slabs. The process of bending or shaping rebars is usually done using specialized equipment, such as rebar benders or hydraulic tools. By bending or shaping the rebars, construction professionals can ensure that the reinforced concrete structure meets the necessary load-bearing and structural integrity standards.
- Q: Can steel rebars be used in historical building preservation?
- Yes, steel rebars can be used in historical building preservation. Steel rebars provide additional strength and stability to the structure, which is essential for preserving and maintaining historical buildings. However, the use of steel rebars should be done carefully and in consultation with architectural and preservation experts to ensure that it does not compromise the historical integrity and aesthetic value of the building.
- Q: What is the maximum length of steel rebars available?
- The maximum length of steel rebars available varies depending on the specific manufacturer and supplier. However, in general, steel rebars are commonly available in lengths ranging from 6 meters (20 feet) to 18 meters (60 feet). These lengths are determined by factors such as transportation logistics, handling capabilities, and construction industry standards. It is important to consult with the manufacturer or supplier to determine the specific maximum length of steel rebars they offer.
Send your message to us
China supplier Metallic material steel rebar
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1000 m.t.
- Supply Capability:
- 17497 m.t./month
OKorder Service Pledge
OKorder Financial Service
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