Rebar steel for building construction different grade
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 500 m.t.
- Supply Capability:
- 17689 m.t./month
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Specification
Steel rebar is bars of steel commonly used in construction, especially for reinforcing concrete structures
such as driveways, foundations, walls, and columns.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
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 | ||||||||||
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.
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: Are there any limitations on the maximum number of steel rebars that can be used in a concrete element?
- Yes, there are limitations on the maximum number of steel rebars that can be used in a concrete element. These limitations are based on engineering factors such as the size and strength of the rebars, the dimensions and design of the concrete element, and the load-bearing capacity required. The maximum number of rebars will be determined by these factors to ensure structural integrity and safety.
- Q: What are the safety precautions while handling steel rebars?
- Some safety precautions while handling steel rebars include wearing appropriate personal protective equipment such as gloves, safety glasses, and steel-toe boots to protect against cuts, punctures, and potential falling objects. It is important to handle rebars with caution, avoiding any sudden movements or swinging motions that could cause injury. Additionally, workers should be trained on proper lifting techniques to prevent strains and sprains. Ensuring a clean and organized work area, and keeping rebars stacked securely to prevent them from toppling over, are also crucial safety measures.
- Q: Can steel rebars be used in renovation or retrofitting projects?
- Yes, steel rebars can definitely be used in renovation or retrofitting projects. Steel rebars are commonly used in construction to reinforce concrete structures, and they can also be used in renovation projects to strengthen existing structures. When renovating or retrofitting a building, it is often necessary to reinforce the existing structure to meet modern building codes or to support additional loads. Steel rebars can be used to strengthen walls, columns, beams, or slabs by adding additional reinforcement to the concrete. By incorporating steel rebars into a renovation project, the structural integrity of the building can be improved, ensuring its safety and longevity.
- Q: What is the role of steel rebars in preventing cracks in concrete structures?
- Steel rebars play a crucial role in preventing cracks in concrete structures by providing reinforcement and enhancing the overall strength and durability of the concrete. When concrete is poured, it is initially strong in compression but weak in tension. This means that concrete can withstand forces that push or compress it, but it is prone to cracking when subjected to pulling or tension forces. To counteract this weakness, steel rebars are embedded within the concrete. These rebars act as a framework, distributing and absorbing tensile forces that would otherwise cause cracks in the concrete. When the concrete experiences tension, the rebars bear the load and help redistribute the forces, preventing cracks from forming or spreading. The steel rebars also enhance the structural integrity of the concrete by increasing its resistance to bending, shear, and other types of stress. This reinforcement is particularly important in large concrete structures such as buildings, bridges, and dams, as it helps to ensure their stability and longevity. Additionally, steel rebars also play a critical role in preventing cracks in concrete due to temperature changes and shrinkage. Concrete tends to expand and contract with temperature fluctuations, and this can lead to cracking if not properly controlled. Steel rebars help to control these movements by providing restraint and minimizing the potential for cracks. Overall, the presence of steel rebars in concrete structures significantly improves their ability to resist cracking. They reinforce the concrete, enhance its tensile strength, and help distribute and control forces that may cause cracks. By effectively preventing cracks, steel rebars contribute to the long-term durability and safety of concrete structures.
- Q: How do steel rebars affect the overall aesthetics of a building?
- Steel rebars do not have a direct impact on the overall aesthetics of a building as they are typically concealed within the concrete structure. However, their presence is crucial for structural integrity and ensuring the building's safety, which indirectly contributes to the overall aesthetics by allowing for more creative and innovative architectural designs.
- Q: Can steel rebars be used in structures with extreme temperature variations?
- Steel rebars can generally be used in structures with extreme temperature variations. Steel has a high melting point and is known for its durability and strength, making it suitable for various construction applications. However, it is important to consider a few factors when using steel rebars in such structures. Firstly, steel has a coefficient of thermal expansion, which means it expands and contracts with temperature changes. This expansion and contraction can potentially cause stress and strain on the structure if not properly accounted for. To address this issue, engineers and architects use various design techniques, such as providing expansion joints or allowing for thermal movement, to accommodate the steel's thermal expansion and prevent damage. Secondly, extreme temperature variations can affect the mechanical properties of steel. When exposed to high temperatures, steel can lose its strength and stiffness, which might compromise the structural integrity. Conversely, low temperatures can lead to embrittlement, making the steel more susceptible to cracking or fracturing. Therefore, it is crucial to choose the appropriate grade and quality of steel rebars that are specifically designed to withstand the expected temperature variations. Furthermore, the type of structure and its intended use should be considered. For instance, in structures where extreme temperature variations are anticipated, such as bridges or buildings in regions with hot summers and cold winters, the design should incorporate thermal insulation or other measures to prevent excessive heat transfer or thermal stress accumulation. In conclusion, steel rebars can be used in structures with extreme temperature variations, but proper considerations must be taken. By accounting for thermal expansion, selecting suitable steel grades, and incorporating design techniques to accommodate temperature changes, the structural integrity and performance can be maintained, ensuring the safety and longevity of the construction.
- Q: What is the impact of steel rebars on the constructability of a project?
- Steel rebars have a significant impact on the constructability of a project. These reinforcement bars play a crucial role in strengthening and providing structural integrity to concrete structures. By incorporating steel rebars, the overall strength, durability, and resilience of a construction project are greatly improved. One of the key impacts of using steel rebars is the increased load-bearing capacity of the structure. Rebars are designed to withstand tension, which complements the concrete's ability to resist compression. This combination enhances the structural strength of the project, enabling it to withstand heavy loads and external forces, such as earthquakes or high winds. Moreover, steel rebars also enhance the ductility of the concrete structure. Ductility refers to the material's ability to deform without breaking. By adding rebars, the concrete becomes more flexible, allowing it to absorb energy and deform under stress before reaching its breaking point. This is particularly important in areas prone to seismic activities, as it helps prevent sudden and catastrophic failure of the structure. Another aspect of constructability impacted by steel rebars is the overall lifespan of the project. The corrosion resistance properties of rebars, especially when coated or galvanized, significantly extend the lifespan of the structure. This is particularly relevant in environments with high humidity, coastal areas, or regions with harsh weather conditions. By preventing corrosion and maintaining the integrity of the rebars, the entire project's longevity and durability are greatly enhanced. Additionally, steel rebars also facilitate the construction process itself. Their availability in various lengths, shapes, and sizes allows for flexible and efficient design and construction. Contractors can easily cut, bend, and shape rebars to fit specific project requirements, reducing construction time and costs. Moreover, rebars can be prefabricated off-site, minimizing on-site labor and simplifying the construction process. In conclusion, the impact of steel rebars on the constructability of a project is highly significant. They improve the overall strength, load-bearing capacity, ductility, and lifespan of the structure. Additionally, the flexibility and ease of use of steel rebars contribute to efficient construction practices. Therefore, incorporating steel rebars into a project is essential for ensuring its structural integrity and long-term success.
- Q: What is the fatigue strength of steel rebars?
- The fatigue strength of steel rebars refers to their ability to withstand repeated loading and unloading cycles without experiencing failure or fatigue crack propagation. This strength can vary depending on factors such as the specific grade of steel, rebar size and shape, surface condition, and loading conditions. Generally, steel rebars have high fatigue strength due to their inherent toughness and ductility, making them suitable for applications in construction projects where cyclic loading is common, such as bridges, highways, and buildings.
- Q: How are steel rebars tested for quality?
- Steel rebars are tested for quality through various methods such as visual inspection, dimensional checks, and destructive testing. Visual inspection involves examining the rebars for any surface defects or abnormalities. Dimensional checks ensure that the rebars meet the specified size, length, and weight requirements. Destructive testing involves subjecting the rebars to tension, compression, and bending forces to assess their strength, ductility, and overall performance. These tests help ensure that steel rebars meet the necessary quality standards for construction purposes.
- Q: What are the limitations of using steel rebars in construction?
- One limitation of using steel rebars in construction is their susceptibility to corrosion, especially in areas with high humidity or exposure to saltwater. This can weaken the rebars over time and compromise the structural integrity of the building. Additionally, steel rebars are heavy and require skilled labor and heavy equipment for installation. They can also be expensive, which may not be feasible for certain construction projects with budget constraints. Lastly, steel rebars have limitations in terms of flexibility and design adaptability, as they are rigid and may not be suitable for complex or unconventional construction designs.
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Rebar steel for building construction different grade
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 500 m.t.
- Supply Capability:
- 17689 m.t./month
OKorder Service Pledge
OKorder Financial Service
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