Iron Rod and Reinforcing Steel Rebar 6-12m
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 m.t.
- Supply Capability:
- 18000 m.t./month
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Specification
Standard:
ASTM,JIS
Technique:
Hot Rolled
Shape:
Round
Surface Treatment:
Dry
Steel Grade:
RHB335,HRB400
Thickness:
6-38mm
Length:
5.8-12m
Net Weight:
1-2mt
Steel rebar is bars of steel commonly used in construction, especially for reinforcing concrete structures such as driveways,
foundations, walls, and columns. These bars come in different sizes and strength grades, and can be smooth or may include
deformations that provide greater adhesion for concrete poured over the bars. When used in poured concrete, the bars are typically
placed in a grid pattern, the concrete poured over them, and then readjusted to maintain the proper shape while the concrete sets.
Steel rebar can be purchased from a number of manufacturers and is often found at construction retailers or large hardware stores.
Our Advantage: High quality steel products from 1 class mills in China
Reasonable price
Professionalism of the products
On-time delivery
Complete documents and certificates
Sincere service to meet our clients' requirements
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 do steel rebars affect the load-bearing capacity of concrete structures?
- Concrete structures greatly benefit from the use of steel rebars, as they play a crucial role in improving their load-bearing capacity. These rebars are embedded within the concrete to provide tensile strength, as concrete is known to be weak in tension. By reinforcing the concrete, rebars effectively distribute and bear the applied loads, ultimately enhancing the overall structural performance. The incorporation of steel rebars in concrete structures serves to resist cracking and prevent structural failure under various load conditions. When a load is exerted on a concrete structure, such as a beam or column, the rebars absorb the tensile forces generated by the load. This action safeguards the concrete from cracking and ensures the structure remains intact and stable. Furthermore, the utilization of rebars also enhances the flexural strength of concrete structures. Flexural strength refers to the capacity of a material to withstand bending forces. Through the reinforcement of concrete with rebars, the structure becomes more resistant to bending and can support heavier loads without experiencing excessive deflection or failure. Additionally, steel rebars play a pivotal role in enhancing the shear strength of concrete structures. Shear strength refers to the ability of a material to resist forces that cause one layer of the material to slide relative to another. By providing additional reinforcement, rebars strengthen the concrete against shear forces, thereby increasing the structure's resistance to lateral loads and preventing shear failure. In summary, steel rebars significantly bolster the load-bearing capacity of concrete structures by providing tensile, flexural, and shear strength. Their presence enables concrete structures to withstand higher loads, enhances their durability, and ensures their long-term structural integrity. Proper design and installation of rebars are imperative when constructing safe and structurally sound concrete buildings, bridges, and other infrastructure projects.
- Q: What are the factors that can affect the lifespan of steel rebars in concrete structures?
- There are several factors that can affect the lifespan of steel rebars in concrete structures. These factors include the quality of the steel used, the level of corrosion protection provided, the exposure to harsh environmental conditions, the presence of cracks or voids in the concrete, and the maintenance and repair practices followed.
- Q: Can steel rebars be used in foundations and footings?
- Yes, steel rebars can certainly be used in foundations and footings. In fact, they are commonly used in these applications due to their high tensile strength and durability. Steel rebars, which are typically made of carbon steel, are used to reinforce concrete structures and enhance their resistance to tension and bending forces. The rebars are placed within the concrete to provide additional strength and prevent cracking or failure under heavy loads. Therefore, using steel rebars in foundations and footings is a standard practice in construction to ensure the stability and longevity of the structure.
- Q: How are steel rebars protected during transportation and storage?
- Steel rebars are typically protected during transportation and storage by being coated with a layer of rust-resistant material, such as epoxy or zinc. This coating acts as a barrier against moisture and other corrosive elements, ensuring the rebars remain in good condition until they are ready for use. Additionally, rebars are often stacked and strapped together to prevent any movement or damage during transportation.
- Q: What is the purpose of using steel rebars in concrete structures?
- To enhance the overall strength and durability of concrete structures, steel rebars are employed. While concrete excels in compression, it lacks strength in tension. By integrating steel rebars into the concrete, the structure becomes capable of withstanding tensile forces and averting cracking or failure. Typically crafted from carbon steel, steel rebars possess robustness and high tensile strength. They are positioned within the concrete molds prior to pouring, thereby creating a reinforced concrete structure. When exposed to tensile forces, the concrete transfers the load to the steel rebars, which can effectively endure the stretching or pulling forces. This reinforcement aids in the equitable distribution of the load, warding off localized stress points and diminishing the likelihood of structural failure. In addition to providing tensile strength, steel rebars also assist in managing cracks in concrete structures. As concrete contracts and expands due to temperature fluctuations or drying, it becomes susceptible to cracking. The inclusion of steel rebars curbs the width and extent of these cracks, guaranteeing the structural integrity and prolonged lifespan of the concrete. Moreover, steel rebars heighten the resistance of concrete structures to seismic activity or other dynamic forces. The malleability of steel rebars enables them to absorb and dissipate energy during earthquakes or vibrations, thereby diminishing the risk of collapse. In essence, the purpose of incorporating steel rebars into concrete structures is to fortify and reinforce the concrete. This entails providing additional tensile strength, managing cracks, and augmenting the overall durability and resilience of the structure.
- Q: What are the guidelines for ensuring proper bond between steel rebars and concrete?
- The guidelines for ensuring proper bond between steel rebars and concrete are crucial to ensure the structural integrity and performance of reinforced concrete structures. Here are some key guidelines to follow: 1. Proper Bar Placement: The rebars should be positioned within the concrete member as per the design specifications, including the required spacing, cover, and lap lengths. The spacing between rebars and the concrete surface should be maintained to provide enough concrete cover and prevent corrosion. 2. Adequate Surface Preparation: The steel rebars should be free from any loose rust, scale, or contaminants that could hinder the bond with the concrete. Surface preparation techniques such as wire brushing, sandblasting, or using a high-pressure water jet can be employed to clean the rebars effectively. 3. Mechanical Bond: Ribbed or deformed rebars offer better mechanical bond with concrete compared to smooth bars. The surface deformations increase the contact area between the rebar and the concrete, enhancing the bond strength. 4. Proper Embedment Length: The embedment length, also known as the development length, is the distance over which the rebar is embedded in the concrete. It is typically calculated based on the required bond strength, concrete strength, and rebar diameter. Adequate embedment length is crucial to achieve the desired bond performance. 5. Concrete Quality: The quality of concrete, including its strength, workability, and curing, plays a significant role in achieving a proper bond with steel rebars. The concrete mix should be proportioned correctly, ensuring adequate cement content, appropriate water-to-cement ratio, and proper compaction during placement. 6. Adequate Concrete Cover: Sufficient concrete cover should be provided around the rebars to protect them from environmental factors, prevent corrosion, and ensure long-term durability. The concrete cover is typically specified in design codes and should be maintained during construction. 7. Proper Reinforcement Splicing: When multiple rebars need to be connected, proper splicing techniques should be employed to ensure a continuous and strong bond. Lap splices, mechanical couplers, or welded splices can be used depending on the design requirements and project specifications. 8. Effective Vibrations: During concrete placement, proper vibration techniques should be employed to ensure adequate compaction and minimize voids or honeycombs around the rebars. This helps to achieve a better bond between the steel rebars and the surrounding concrete. 9. Avoidance of Contamination: The rebars should be protected from contamination during storage and construction. Exposure to excessive moisture, chemicals, or other corrosive substances can compromise the bond between the rebars and the concrete. 10. Adherence to Design Specifications: Finally, it is crucial to strictly adhere to the design specifications and recommendations provided by structural engineers or relevant design codes. These guidelines are tailored to ensure a proper bond between steel rebars and concrete, taking into account various factors such as loadings, environmental conditions, and durability requirements.
- Q: What is the role of steel rebars in pile foundation construction?
- Pile foundation construction heavily relies on steel rebars, as they serve a vital purpose. These foundations are designed to shift the weight of a structure to deeper layers of soil or rock, ensuring stability and preventing any settling. Steel rebars are utilized in this process to reinforce the concrete piles, thereby increasing their strength and durability. The primary function of steel rebars within pile foundation construction is to provide tensile strength to the concrete. Although concrete is strong under compression, it lacks the ability to withstand tension. By incorporating steel rebars into the concrete, it creates a reinforced structure capable of withstanding both compression and tension forces. In addition, steel rebars play a significant role in preventing cracking and providing structural integrity to the piles. As the piles are subjected to various loads, including vertical and lateral forces, the rebars distribute these loads evenly, preventing any cracking or failure of the concrete under stress. This ensures the stability and longevity of the pile foundation. Moreover, steel rebars contribute to the overall performance of the piles. They enhance the load-carrying capacity of the foundation, enabling it to support heavier structures or loads. The rebars also improve the resistance of the piles against external factors such as earthquakes, wind loads, and soil movement. In summary, steel rebars are essential in pile foundation construction, providing tensile strength, preventing cracking, and enhancing the overall performance and durability of the foundation. Their utilization ensures efficient load transfer and stability, making them an integral component in the construction of robust and dependable structures.
- Q: How do steel rebars affect the flexibility of concrete structures?
- Steel rebars greatly enhance the flexibility of concrete structures. By adding rebars to concrete, they provide tensile strength, allowing the structure to resist cracking and withstand external forces such as wind, earthquakes, and heavy loads. This reinforcement enables the concrete to flex without breaking, increasing its overall flexibility and durability.
- Q: Can steel rebars be used in offshore oil and gas platform construction?
- Steel rebars are indeed suitable for use in the construction of offshore oil and gas platforms. They are frequently employed as reinforcements in concrete structures, including offshore platforms. This utilization enhances the concrete's strength and durability, thereby increasing its ability to withstand the challenging conditions present in offshore environments, such as powerful winds, waves, and corrosive saltwater. The incorporation of steel rebars into the construction of offshore platforms guarantees the platform's structural integrity, resulting in a secure and dependable structure for oil and gas extraction activities. Furthermore, steel rebars can be custom-designed and manufactured to conform to specific industry standards and requirements, ensuring their appropriateness for offshore applications.
- Q: How do steel rebars resist fatigue and creep?
- Steel rebars resist fatigue and creep through their inherent material properties and proper design considerations. Fatigue refers to the gradual weakening of a material under repeated cyclic loading. Steel rebars are specifically designed to withstand fatigue by their high tensile strength and ductility. The tensile strength of steel allows it to resist the stress caused by cyclic loading, while its ductility allows it to deform without fracturing. This combination of properties enables steel rebars to endure numerous load cycles without failure. Additionally, steel rebars can be further enhanced to resist fatigue by employing various techniques such as heat treatment, surface coatings, and alloying. These methods improve the material's fatigue resistance and extend its service life under cyclic loading conditions. Creep, on the other hand, refers to the gradual deformation of a material under constant sustained loading. Steel rebars resist creep through their high stiffness and resistance to plastic deformation. The stiffness of steel allows it to maintain its shape and resist deformation under sustained loads. Moreover, the resistance to plastic deformation prevents excessive stretching or elongation, which can lead to creep failure. Proper design considerations also play a crucial role in enhancing the resistance of steel rebars to fatigue and creep. This includes ensuring appropriate reinforcement spacing, proper anchorage, and adequate concrete cover to protect the rebars from external factors that could induce fatigue or creep. In summary, steel rebars resist fatigue and creep due to their high tensile strength, ductility, stiffness, and resistance to plastic deformation. By utilizing proper design considerations and potentially implementing additional techniques, steel rebars can withstand cyclic loading and sustained loads for extended periods, ensuring their durability and structural integrity.
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Iron Rod and Reinforcing Steel Rebar 6-12m
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 m.t.
- Supply Capability:
- 18000 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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