Deformed steel bar 12mm of different grade
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 m.t.
- Supply Capability:
- 19000 m.t./month
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Quality Product, Order Online Tracking, Timely Delivery
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Specification
Standard:
AISI,ASTM,JIS,EN
Technique:
Hot Rolled
Shape:
Round
Surface Treatment:
Dry
Steel Grade:
RHB335,HRB400
Thickness:
12mm
Length:
6-12m
Net Weight:
1-2mt
Rebar (short for reinforcing bar), also known as reinforcing steel, reinforcement steel, is a steel bar or mesh of steel wires used as a tension device in reinforced concrete and reinforced masonry structures to strengthen and hold the concrete in tension. Rebar's surface is often patterned to form a better bond with the concrete.
.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.
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: How are steel rebars handled and stored on construction sites?
- Steel rebars, also known as reinforcing bars, are an integral component in construction projects that require reinforced concrete structures. Handling and storing steel rebars on construction sites require careful attention to ensure their quality and safety. When steel rebars are delivered to the construction site, they should be inspected for any signs of damage or corrosion. Any damaged rebars should be discarded as they can compromise the structural integrity of the project. The rebars should also be checked for proper labeling, including grade, size, and other specifications. To handle steel rebars, workers typically use mechanical lifting equipment such as cranes or forklifts. It is essential to use appropriate lifting tools to prevent any mishandling or accidents that could result in injuries. The rebars should be lifted in a vertical position to avoid any bending or distortion. Once lifted, steel rebars should be stored in a designated area, usually called a rebar yard. The yard should be clean, well-drained, and organized to prevent any potential damage or corrosion. The rebars should be stacked horizontally on leveled ground, ensuring that they are not in direct contact with the soil or water to avoid rusting. To prevent rebars from rolling or falling, they should be securely tied together using binding wires or steel bands. This will also help in maintaining the order and stability of the stored rebars. Additionally, rebars should be stored away from other construction materials, machinery, or equipment to avoid any accidental damage. Proper storage also involves protecting the rebars from exposure to adverse weather conditions. Covering the rebars with waterproof tarpaulins or plastic sheets can prevent moisture absorption and corrosion. Adequate ventilation should be ensured to prevent the accumulation of moisture, which can lead to rusting. Regular inspections of the stored rebars are crucial to identify any signs of damage or deterioration. If any rebars are found to be damaged or rusty, they should be removed and replaced immediately to maintain the structural integrity of the construction project. In conclusion, steel rebars on construction sites are handled and stored with utmost care. Proper handling involves using suitable lifting equipment, while storage requires a clean and organized rebar yard. Regular inspections and maintenance are essential to ensure the rebars' quality and prevent any compromise to the construction project's structural integrity.
- Q: What is the relationship between steel structure and thread steel?
- Steel and thread steel are two entirely different concepts. A steel structure is a structural form of a structure, and the thread steel is the name of a material.
- Q: What are the main uses of steel rebars?
- Steel rebars, otherwise known as reinforcing bars, serve as a crucial component in construction and civil engineering endeavors, granting robustness and steadiness to concrete structures. The primary applications of steel rebars encompass the following: 1. Reinforcement of Concrete: Steel rebars are strategically integrated within concrete structures to heighten their tensile strength. While concrete exhibits commendable resistance against compressive forces, it remains vulnerable in terms of tension. By incorporating rebars, the resulting composite material (reinforced concrete) is endowed with the ability to withstand both compressive and tensile forces, rendering it suitable for various applications such as building columns, beams, slabs, and foundations. 2. Enhancement of Structural Stability: Steel rebars play a pivotal role in elevating the structural stability of edifices and infrastructures. They facilitate the uniform distribution of loads across the structure, preventing the occurrence of cracks, sagging, or collapse. Through the reinforcement of concrete elements with rebars, structures become capable of enduring substantial loads, seismic activity, and other external forces. 3. Bridges and Highways: Steel rebars find extensive employment in the construction of bridges and highways. As bridges are routinely subjected to substantial loads and harsh environmental conditions, robust and durable reinforcement is imperative. Steel rebars ensure the longevity and structural integrity of these critical infrastructure projects. 4. Retaining Walls and Tunnels: Retaining walls serve the purpose of holding back soil or other substances, thereby preventing erosion. Steel rebars are commonly employed to reinforce these structures, enabling them to withstand the lateral pressures exerted by the retained material. Similarly, in tunnel construction, rebars bestow strength upon the concrete lining, ensuring stability and averting collapse. 5. Foundations: Steel rebars form an indispensable constituent in the construction of building foundations. They contribute to the even distribution of the structure's weight onto the ground, thereby averting the occurrence of settlement or sinking. Furthermore, rebars anchor the foundation to the ground, endowing it with stability against soil movement or seismic forces. 6. Pre-stressed and Post-tensioned Concrete: In the realm of pre-stressed and post-tensioned concrete construction, steel rebars are employed to introduce compressive forces into the concrete members. This technique elevates the structural performance by diminishing tensile stress, augmenting load-bearing capacity, and minimizing cracking. 7. Masonry Reinforcement: Steel rebars are also utilized to reinforce masonry structures such as walls, columns, and arches. By embedding rebars within mortar joints or cores, the overall strength and stability of the masonry system are enhanced, enabling it to withstand lateral loads and seismic forces. To summarize, steel rebars are indispensable in contemporary construction endeavors, furnishing concrete structures with strength, stability, and durability. By virtue of their capacity to resist tensile forces, they ensure the well-being and longevity of buildings, bridges, highways, tunnels, and other crucial infrastructure projects.
- 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: Can steel rebars be used in foundation reinforcement?
- Yes, steel rebars can be used in foundation reinforcement. Steel rebars provide strength and stability to concrete foundations, helping to distribute loads and prevent cracking or collapsing. Additionally, steel rebars enhance the overall durability and longevity of the foundation.
- Q: What are the different types of steel rebars used in road constructions?
- There are several types of steel rebars that are commonly used in road constructions. These include: 1. Mild steel rebars: These are the most commonly used type of rebars in road constructions. They are made from low carbon steel and have a smooth surface. Mild steel rebars are known for their durability and strength, making them suitable for various road construction applications. 2. High-strength rebars: These rebars are made from high-strength steel, which has a higher yield strength compared to mild steel rebars. High-strength rebars are used in road constructions where greater load-bearing capacity is required, such as in bridges and highways. 3. Epoxy-coated rebars: These rebars are coated with epoxy resin to improve their corrosion resistance. Epoxy-coated rebars are commonly used in road constructions in areas where there is exposure to moisture and chemicals, such as coastal regions. 4. Galvanized rebars: These rebars are coated with a layer of zinc to provide corrosion resistance. Galvanized rebars are particularly suitable for road constructions in areas with high humidity or where the risk of corrosion is high. 5. Stainless steel rebars: These rebars are made from stainless steel, which is highly resistant to corrosion. Stainless steel rebars are commonly used in road constructions where long-term durability and resistance to corrosion are essential, such as in tunnels and underground structures. It is important to select the appropriate type of steel rebar for road constructions based on the specific requirements of the project, including load-bearing capacity, exposure to corrosion, and environmental conditions. Consulting with structural engineers and adhering to local construction codes and standards is crucial to ensure the successful implementation of road construction projects.
- Q: How are steel rebars protected from concrete spalling?
- Steel rebars are protected from concrete spalling through the use of various methods and techniques. One common method is to provide a concrete cover over the rebars. This means that the rebars are embedded within the concrete structure, ensuring that they are not directly exposed to external elements or conditions that could cause spalling. The thickness of the concrete cover is typically specified in construction codes and standards to ensure adequate protection. Another way to protect steel rebars from concrete spalling is by using corrosion inhibitors. These inhibitors are typically added to the concrete mix during the construction process. They work by reducing the corrosion rate of the steel rebars, thereby protecting them from spalling caused by rusting and corrosion. In addition to concrete cover and corrosion inhibitors, proper concrete mix design is crucial in protecting steel rebars. The use of high-quality concrete with appropriate water-cement ratio, sufficient strength, and proper curing greatly enhances the resistance of the concrete against spalling. This ensures that the rebars remain securely embedded within the concrete structure and are not exposed to moisture or other deteriorating agents that could lead to spalling. Furthermore, proper construction practices such as adequate compaction of concrete, proper placement and alignment of rebars, and effective waterproofing measures also contribute to the protection of steel rebars from concrete spalling. These practices help to minimize the chances of moisture ingress and the formation of cracks or voids that could expose the rebars to the risk of spalling. Overall, a combination of concrete cover, corrosion inhibitors, proper concrete mix design, and appropriate construction practices are essential in protecting steel rebars from concrete spalling. By implementing these measures, the durability and longevity of concrete structures can be significantly improved.
- Q: How do steel rebars contribute to the ductility of reinforced concrete structures?
- Steel rebars contribute to the ductility of reinforced concrete structures by providing reinforcement and increasing tensile strength. The rebars act as a skeleton within the concrete, absorbing and distributing external forces such as tension and compression. This reinforcement prevents the concrete from cracking or failing under stress, allowing the structure to withstand greater loads and deform without collapsing, thus enhancing its overall ductility.
- Q: What is the recommended method for splicing steel rebars together?
- The recommended method for splicing steel rebars together is typically achieved using mechanical splices or lap splices. Mechanical splices involve connecting two rebars using couplers or sleeves, which are designed to provide strength and stability to the joint. Lap splices, on the other hand, involve overlapping the rebars and securing them together with steel wire or tie bars. The choice of method depends on factors such as the structural requirements, rebar diameter, and construction specifications.
- Q: What are the factors to consider while selecting steel rebars for a construction project?
- When selecting steel rebars for a construction project, there are several factors that should be considered. Firstly, the grade and type of steel rebar should be chosen based on the specific requirements and design of the project. Factors such as the expected loads, environmental conditions, and the type of structure being built will influence the choice of steel rebar. Additionally, the diameter and spacing of the rebars should be determined based on the structural design and the anticipated stresses on the project. The corrosion resistance and durability of the rebars, as well as their ability to bond with concrete, should also be taken into account. Lastly, the availability and cost of the steel rebars should be considered to ensure the project remains within budget without compromising on quality.
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Deformed steel bar 12mm of different grade
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 m.t.
- Supply Capability:
- 19000 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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