Dia 5-50mm Deformed Steel Rebar for construction
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 m.t.
- Supply Capability:
- 19000 m.t./month
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Specification
Steel rebar is metal bars often used in construction for pouring concrete or supporting walls and columns. The rebar can
be smooth, though they are frequently manufactured with deformations that create greater texture to which concrete can
adhere, creating a stronger bond that helps prevent cracking of concrete. These deformations do not create weaknesses in
the rebar, and when rebar is measured to determine its diameter, it is typically measured at the narrowest point. Strength
grades indicate the amount of pressure the steel rebar can withstand, and grade and diameter are typically presented in both
imperial and metric units.
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: Are there any specific guidelines for handling and storing steel rebars?
- Yes, there are specific guidelines for handling and storing steel rebars to ensure their quality and safety. Some of the key guidelines include: 1. Proper handling: Steel rebars should be handled with care to avoid any damage or bending. They should be lifted using appropriate equipment and not dragged or thrown. 2. Storage conditions: Rebars should be stored in a clean, dry, and well-ventilated area to prevent rusting and corrosion. They should be kept off the ground and away from moisture, chemicals, and direct sunlight. 3. Stacking: Rebars should be stacked in a way that ensures stability and prevents any deformation. They should be placed on flat surfaces and stacked in layers with wooden or rubber separators to avoid direct contact between rebars. 4. Labelling: Each bundle of rebars should be properly labeled with relevant information such as size, grade, and quantity for easy identification and inventory management. 5. Inspection: Regular inspections should be conducted to check for any signs of damage, rust, or corrosion. Damaged or corroded rebars should be discarded or repaired before use. Adhering to these guidelines is crucial to maintain the quality and integrity of steel rebars, ensuring their suitability for construction purposes.
- Q: Can steel rebars be used in structures with heavy snow loads?
- Yes, steel rebars can be used in structures with heavy snow loads. Steel rebars provide strength and reinforcement to concrete structures, which helps them withstand heavy loads, including the weight of snow. Additionally, steel rebars have high tensile strength and can resist bending and deformation caused by snow loads, making them suitable for such structures.
- Q: What are the common challenges in handling steel rebars during construction?
- Some common challenges in handling steel rebars during construction include their heavy weight, which can make them difficult to lift and maneuver, the need for proper storage to prevent rusting and damage, the risk of injury if not handled correctly, and the need for precision in cutting and bending them to fit specific structures.
- Q: What is the role of steel rebars in tunnel shaft construction?
- The role of steel rebars in tunnel shaft construction is crucial for ensuring the structural integrity and strength of the tunnel shaft. Steel rebars, also known as reinforcement bars, are used to reinforce the concrete structures in the tunnel shaft. The main purpose of steel rebars is to provide additional tensile strength to the concrete. While concrete is strong in compression, it is relatively weak in tension. By placing steel rebars within the concrete, the tensile forces are transferred from the concrete to the steel, effectively increasing the overall strength and stability of the structure. In tunnel shaft construction, steel rebars are typically placed in a grid pattern throughout the concrete walls, floor, and ceiling of the shaft. This grid pattern helps distribute the tensile forces evenly and prevents the concrete from cracking or crumbling under the pressure. Steel rebars also play a crucial role in preventing the concrete from expanding or contracting due to temperature changes. By providing reinforcement, they help to control the potential for cracking or structural damage caused by thermal expansion and contraction. Additionally, steel rebars can improve the durability and longevity of the tunnel shaft. They enhance resistance against external forces such as earthquakes, ground settlements, and water pressure. Moreover, they can reinforce the tunnel shaft against potential impacts or collisions, ensuring the safety of the structure and its occupants. In summary, the role of steel rebars in tunnel shaft construction is to reinforce the concrete structures, increase their tensile strength, prevent cracking, control thermal expansion, enhance durability, and provide resistance against external forces. Their presence is essential for creating a strong and reliable tunnel shaft.
- Q: Can steel rebars be used in structures with high resistance to creep?
- Yes, steel rebars can be used in structures with high resistance to creep. Steel rebars are known for their high strength and durability, making them suitable for various construction applications, including structures that are designed to withstand creep.
- Q: What are the different types of steel rebars used in railway bridges?
- There are several types of steel rebars used in railway bridges, including plain carbon steel rebars, epoxy-coated rebars, and stainless steel rebars. Each type of rebar offers unique properties and benefits to ensure the durability and strength of railway bridges.
- 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 high-strength concrete?
- Yes, steel rebars can be used in high-strength concrete. In fact, they are commonly used as reinforcement in high-strength concrete structures to enhance the overall strength and durability of the concrete.
- Q: What are the guidelines for ensuring proper bond between steel rebars and concrete?
- Ensuring a strong bond between steel rebars and concrete is vital for the structural integrity and performance of reinforced concrete structures. To achieve this, the following guidelines should be followed: 1. Correct Placement of Rebars: The rebars must be positioned according to the design specifications, including the required spacing, cover, and lap lengths. It is important to maintain the appropriate spacing between rebars and the concrete surface to provide sufficient concrete cover and prevent corrosion. 2. Thorough Surface Preparation: The steel rebars should be free from loose rust, scale, or contaminants that could hinder the bond with the concrete. Effective surface preparation techniques such as wire brushing, sandblasting, or using a high-pressure water jet can be used to clean the rebars. 3. Mechanical Bond: Ribbed or deformed rebars offer a better mechanical bond with concrete compared to smooth bars. The surface deformations increase the contact area between the rebar and the concrete, thereby 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 essential for achieving the desired bond performance. 5. High-Quality Concrete: The quality of concrete, including its strength, workability, and curing, plays a crucial role in achieving a proper bond with steel rebars. The concrete mix should be proportioned correctly, ensuring sufficient cement content, appropriate water-to-cement ratio, and proper compaction during placement. 6. Sufficient Concrete Cover: Adequate 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 connecting multiple rebars, proper splicing techniques should be used to ensure a continuous and strong bond. Lap splices, mechanical couplers, or welded splices can be employed based on the design requirements and project specifications. 8. Effective Vibration Techniques: 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. Prevention 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: Lastly, 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, considering factors such as loadings, environmental conditions, and durability requirements.
- Q: Can steel rebars be used in structures with aggressive chemical exposure?
- Steel rebars can be used in structures with aggressive chemical exposure, but it is important to take certain precautions. Aggressive chemicals can cause corrosion in steel rebars, which can weaken the structure over time. To mitigate this risk, corrosion-resistant coatings or materials can be applied to the rebars. These coatings act as a barrier between the rebars and the aggressive chemicals, preventing direct contact and reducing the chances of corrosion. Additionally, proper maintenance and regular inspections are necessary to identify any signs of corrosion and take appropriate measures to address them. Ultimately, with the right protective measures in place, steel rebars can be effectively used in structures with aggressive chemical exposure.
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Dia 5-50mm Deformed Steel Rebar for construction
- Loading Port:
- Tianjin
- 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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