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:What is the role of steel rebars in load-bearing structures?
- The role of steel rebars in load-bearing structures is to provide reinforcement and increase the overall strength and durability of the structure. Steel rebars are embedded within concrete to enhance its tensile strength, as concrete alone is weak in tension. By distributing and resisting the applied loads, rebars help prevent cracks and failures, ensuring the stability and longevity of the load-bearing structure.
- Q:What are the common quality control tests for steel rebars?
- Steel rebars undergo several quality control tests to ensure they meet industry standards and specifications. These tests assess the rebars' physical, mechanical, and chemical properties to guarantee their durability and performance. Common quality control tests for steel rebars include: 1. Tensile Test: This test determines the rebars' tensile strength, yield strength, and elongation. It involves gradually applying force to the rebar until it breaks, measuring the maximum force it can withstand. 2. Bend Test: This test evaluates the rebars' ability to withstand bending without cracking. The rebar is bent to a specific angle and inspected for visible cracks. 3. Chemical Composition Analysis: This test determines the rebars' chemical composition, ensuring they meet required standards. It involves analyzing the levels of carbon, manganese, phosphorus, sulfur, and other elements. 4. Visual Inspection: This test visually examines the rebars for surface defects like cracks or irregularities that could impact structural integrity. 5. Dimensional Inspection: This test verifies the rebars' dimensions and shape, checking for deviations from specified requirements. Instruments are used to measure diameter, length, and shape. 6. Weldability Test: If the rebars will be welded, a test is performed to assess their suitability for welding. The quality of the weld joint, including strength and brittleness, is evaluated. 7. Corrosion Resistance Test: This test determines the rebars' resistance to corrosion, which is crucial for long-term durability. It involves subjecting the rebars to accelerated corrosion conditions and assessing their resistance. These tests are essential in ensuring the quality and reliability of steel rebars used in construction projects. Manufacturers and inspectors can identify non-compliant or substandard rebars through these tests, ensuring the safety and structural integrity of buildings and infrastructure.
- Q:Are steel rebars suitable for use in historical restoration projects?
- Steel rebars can be suitable for use in historical restoration projects, depending on the specific requirements and circumstances. Steel rebars offer several advantages, such as their high strength, durability, and ability to reinforce structures effectively. These qualities make them a popular choice in modern construction and renovation projects. However, when considering the use of steel rebars in historical restoration projects, it is crucial to take into account the preservation and authenticity of the original structure. Historical buildings often have unique architectural features and materials that should be respected and preserved. In some cases, the use of steel rebars may not be suitable, especially if it compromises the historical integrity or visual appearance of the structure. This is particularly relevant for buildings with significant historical value or those that are protected by heritage regulations. If steel rebars are deemed necessary for structural reinforcement in a historical restoration project, it is essential to ensure that they are discreetly integrated, minimizing their visual impact. This can be achieved by concealing them within the original materials or using techniques that replicate the appearance of the original construction. In summary, while steel rebars can offer structural benefits and durability, their use in historical restoration projects should be carefully evaluated to ensure that they align with the preservation goals and requirements of the specific project. Preservation of historical authenticity should always be a priority in such endeavors.
- Q:How are steel rebars protected against chemical attacks in concrete?
- Steel rebars are protected against chemical attacks in concrete by using various methods such as applying protective coatings, using corrosion inhibitors, and ensuring proper concrete cover over the rebars.
- Q:How do steel rebars resist fire?
- Steel rebars resist fire due to their high melting point and low thermal conductivity. Steel has a melting point of around 1370°C, which is higher than typical temperatures reached in building fires. This allows rebars to maintain their structural integrity even in high-temperature environments. Additionally, steel has a low thermal conductivity, meaning it does not readily transfer heat, minimizing the risk of fire spread and structural failure. The combination of these properties makes steel rebars a reliable choice for reinforcing concrete structures in fire-prone areas.
- Q:What are the guidelines for reinforcing concrete slabs with steel rebars?
- The guidelines for reinforcing concrete slabs with steel rebars involve several key considerations. Firstly, the rebars should be placed in the lower portion of the slab, typically in a grid pattern, to provide tensile strength and prevent cracking. The spacing and size of the rebars should be determined based on the load and requirements of the specific slab. Additionally, proper lap length and overlap of rebars should be ensured at intersections to maintain structural integrity. Lastly, it is important to follow local building codes and standards to ensure compliance and safety.
- Q:Are steel rebars suitable for use in structures with high impact resistance requirements?
- Steel rebars are commonly used in construction due to their high tensile strength and ability to withstand heavy loads. However, when it comes to structures with high impact resistance requirements, steel rebars may not be the most suitable choice. While steel rebars are strong, they have limited impact resistance compared to other materials such as fiberglass or carbon fiber. In structures that are prone to high impact loads, such as bridges, earthquake-resistant buildings, or structures subject to heavy machinery or vehicle collisions, alternative materials may be more appropriate. Fiberglass rebars, for example, offer enhanced impact resistance due to their flexibility and ability to absorb energy without fracturing. They also have a higher strength-to-weight ratio compared to steel rebars. Carbon fiber rebars, on the other hand, possess exceptional impact resistance and are often used in aerospace and military applications. In conclusion, while steel rebars are a reliable choice for many structural applications, structures with high impact resistance requirements may benefit from the use of alternative materials such as fiberglass or carbon fiber rebars. It is important to carefully consider the specific needs and demands of the structure to ensure its durability and safety.
- Q:What are the guidelines for proper anchoring of steel rebars in concrete structures?
- The guidelines for proper anchoring of steel rebars in concrete structures involve several key steps. Firstly, the rebars should be placed at the correct depth within the concrete to ensure sufficient bonding and structural integrity. It is important to clean the rebars thoroughly before installation to remove any dirt or debris that may hinder the bond. Additionally, the rebars should be positioned at the appropriate spacing and secured in place using rebar chairs or supports to maintain their correct position during the concrete pouring process. Adequate concrete cover should be provided around the rebars to protect them from corrosion and fire damage. Lastly, proper curing of the concrete is essential to allow the rebars to effectively bond and provide the necessary strength to the structure. Overall, following these guidelines ensures the reliable anchoring of steel rebars and enhances the overall durability and safety of the concrete structure.
- Q:How much is the difference between the three grade thread steel and the two grade thread steel?
- For some time, due to the supply of three threads, and the two level of demand, resulting in two, more expensive than three.
- Q:How do steel rebars affect the overall moisture resistance of a structure?
- Steel rebars can have a significant impact on the overall moisture resistance of a structure. When properly installed and coated, rebars can provide reinforcement and help prevent cracks in concrete, which can be potential pathways for moisture infiltration. Additionally, the corrosion resistance of steel rebars is crucial in maintaining the structural integrity of the concrete, as corrosion can weaken the rebars and lead to moisture seepage. Therefore, the presence of steel rebars, if properly protected, can enhance the moisture resistance of a structure.
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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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