Metallic material steel rebar for construction concrete for building metal
- 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
Epoxy-coated rebar or stainless steel rebar may be employed in these situations at greater initial expense, but
significantly lower expense over the service life of the project. Fiber-reinforced polymer rebar is now also being
used in high-corrosion environments
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.
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: Can steel rebars be used in the construction of railway or subway systems?
- Steel rebars, also known as reinforcement bars, serve as a reliable and commonly used material in the construction of railway or subway systems. They provide strength and durability to concrete structures, ensuring the safety and longevity of the infrastructure. Typically, steel rebars reinforce the concrete foundations, pillars, beams, and other structural components of railway or subway systems. This reinforcement enhances the structural integrity and load-bearing capacity of the infrastructure. Moreover, steel rebars possess corrosion-resistant properties, making them suitable for environments with moisture or chemical exposure. Overall, steel rebars play a crucial role in constructing railway or subway systems, ensuring their strength, durability, and safety.
- Q: What is the effect of exposure to acidic soil on steel rebars?
- Exposure to acidic soil can have a detrimental effect on steel rebars. The acidic nature of the soil can cause corrosion and degradation of the steel rebars over time. This corrosion weakens the rebars, reducing their structural integrity and potentially leading to structural failures in constructions where they are used. Regular inspections and appropriate measures, such as protective coatings or using non-corrosive materials, are necessary to prevent or mitigate the negative effects of acidic soil on steel rebars.
- Q: Are steel rebars suitable for use in structures with aggressive soil conditions?
- Structures facing aggressive soil conditions should generally consider the suitability of steel rebars. The specific characteristics of the soil and its potential impact on the rebars must be taken into account. Aggressive soil conditions often involve excessive moisture, acidity, or corrosive substances, which can lead to corrosion and compromise the structural integrity of the construction. To prevent corrosion, several measures can be employed. One effective approach is the use of corrosion-resistant steel rebars, including stainless steel or epoxy-coated rebars. These materials offer an additional layer of protection against aggressive soil conditions. In addition, proper design and construction techniques can help minimize the adverse effects of aggressive soil conditions on the rebars. Implementing adequate drainage systems, waterproofing measures, and protective coatings can prevent direct contact between the soil and the rebars. It is crucial to seek advice from structural engineers and soil science experts when assessing the suitability of steel rebars in structures facing aggressive soil conditions. Their expertise and recommendations are invaluable for ensuring the longevity and safety of the structure.
- 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: How are steel rebars inspected for quality on construction sites?
- Steel rebars are critical components in construction projects, as they provide reinforcement and strength to concrete structures. Ensuring the quality of steel rebars is crucial to guarantee the safety and durability of the overall construction. To inspect the quality of steel rebars on construction sites, several methods are commonly employed. Visual Inspection: The first and most basic method of quality inspection involves visual examination of the rebars. This includes checking for any visible defects such as cracks, deformations, rust, or surface irregularities. Any rebars with such flaws are immediately identified and rejected. Measurement and Dimensional Checks: Steel rebars need to meet specific dimensional requirements as per project specifications and industry standards. Inspection personnel use measuring tools, such as calipers or tape measures, to verify the length, diameter, and other dimensions of the rebars. Any deviation from the specified tolerances may lead to rejection. Magnetic Particle Testing (MPT): MPT is a non-destructive testing method commonly used to detect surface and near-surface defects in steel rebars. This technique involves magnetizing the rebar and applying ferromagnetic particles, which accumulate at any surface defects or cracks. By carefully inspecting the surface, trained inspectors can identify any areas of concern. Ultrasonic Testing (UT): UT is another non-destructive testing method used for inspecting rebars. It involves the use of ultrasonic waves that are transmitted through the rebar. These waves reflect back differently when encountering any defects, such as voids, cracks, or inclusions. By analyzing the reflected waves, trained technicians can identify and assess the quality of the rebars. Tensile Testing: Tensile strength is a crucial factor in determining the quality of steel rebars. Tensile testing involves pulling a sample rebar until it breaks, measuring the force required to do so. This test helps determine the strength and ductility of the rebar, ensuring it meets the required standards. Chemical Analysis: Steel rebars are often subjected to chemical analysis to ensure they meet the specified composition requirements. Samples are collected from the rebars, and various tests are conducted to determine the chemical composition, including carbon, manganese, and other alloying elements. This analysis helps ensure the rebars possess the necessary properties for the intended application. All these inspection methods are typically conducted by qualified and experienced personnel, such as certified welding inspectors or quality control technicians. By employing these quality inspection procedures, construction sites can ensure that the steel rebars used in their projects meet the required standards, thereby ensuring the safety and longevity of the structures being built.
- Q: How do steel rebars contribute to the overall occupant comfort of a building?
- Steel rebars contribute to the overall occupant comfort of a building by providing structural strength and stability. They reinforce the concrete, ensuring that the building can withstand various forces such as wind, earthquakes, and heavy loads. This enhances the safety of the occupants, assuring them of a secure and stable structure. Additionally, steel rebars help in maintaining the integrity of the building over time, reducing the risk of cracks or structural failures that could negatively impact occupant comfort.
- Q: What are lap splices in steel rebars?
- Lap splices in steel rebars refer to the overlapping of two rebars in concrete construction to ensure the continuity and strength of the reinforced concrete structure. This technique is used to transfer the load from one rebar to another, providing structural integrity and preventing any potential weak points.
- Q: What are the different types of supports used for steel rebars in formwork?
- There are several different types of supports that can be used for steel rebars in formwork. Some common examples include chairs, spacers, bolsters, and hangers. These supports are designed to provide stability and ensure proper positioning of the rebars during concrete pouring and curing processes.
- Q: How do steel rebars affect the weight of a concrete structure?
- Steel rebars can have a significant impact on the weight of a concrete structure. Rebars, which are typically made of steel, are used to reinforce the concrete and enhance its strength and durability. These rebars are usually placed in the areas of concrete that are under tension, such as the bottom of beams or the middle of slabs. While the steel rebars themselves contribute to the overall weight of the structure, their presence allows for the use of less concrete. By adding reinforcement, the concrete can withstand higher loads and stresses, reducing the need for excessive amounts of concrete. This leads to a lighter structure overall. Additionally, the use of steel rebars enables the design and construction of more slender and efficient structures. The enhanced strength provided by the rebars allows for longer spans and thinner sections, resulting in reduced dead load. This not only reduces the weight of the structure but also allows for more flexibility in architectural and structural design. Moreover, the weight of a concrete structure is a critical consideration, especially in high-rise buildings or long-span structures. Excessive weight can put strain on the foundation and increase construction costs. By utilizing steel rebars, the weight of the concrete structure can be optimized without compromising its structural integrity. In summary, steel rebars play a crucial role in reducing the weight of concrete structures. They allow for the use of less concrete while maintaining the required strength, resulting in lighter and more efficient structures. The use of rebars also provides flexibility in design and reduces construction costs associated with excessive weight.
- Q: What are the main characteristics of steel rebars?
- The main characteristics of steel rebars include high strength, durability, corrosion resistance, and flexibility. They are commonly used in reinforced concrete structures to reinforce and provide tensile strength to the concrete.
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Metallic material steel rebar for construction concrete for building metal
- 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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