Iron rods of 6-25MM HRB400 HRB500 for building
- 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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OKorder Financial Service
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Item specifice
Deformed Steel bar is a common steel reinforcing bar, used in reinforced concrete and reinforced masonry structures.
It is formed from mild steel, and is given ribs for better frictional adhesion to the concrete. The Deformed Steel bar is an
iron rod , a weldable plain reinforcing steel bar, and can be used as well for steel meshes.
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 | ||||||||||
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 steel rebars suitable for use in wastewater treatment plants?
- Yes, steel rebars are suitable for use in wastewater treatment plants. They provide excellent strength and durability, making them ideal for reinforcing concrete structures in such environments. Additionally, steel rebars are corrosion-resistant, which is crucial in wastewater treatment plants where exposure to chemicals and moisture is common.
- Q:Can steel rebars be used in structures with high chemical resistance requirements?
- Steel rebars can be used in structures with high chemical resistance requirements, but it is important to consider the specific chemical environment in which the structure will be exposed. While steel rebars are generally resistant to many common chemicals, certain aggressive chemical substances, such as acids or alkaline solutions, can cause corrosion and degradation of the rebar over time. In such cases, it may be necessary to use alternative materials like stainless steel rebars or fiber-reinforced polymer (FRP) rebars, which possess superior resistance to chemical attack. Additionally, proper design, construction, and maintenance practices should be implemented to mitigate the effects of chemical exposure on steel rebars. Factors such as the type and concentration of chemicals, temperature, humidity, and exposure duration should all be carefully considered to determine the suitability of steel rebars for a structure with high chemical resistance requirements. Consulting with a structural engineer or corrosion specialist is recommended to ensure the best choice of materials for the specific chemical environment.
- Q:What is the maximum allowable diameter for steel rebars?
- The maximum allowable diameter for steel rebars varies depending on the specific building codes and standards being followed. However, in general, the maximum allowable diameter for steel rebars typically ranges from 40mm to 50mm.
- Q:How are steel rebars connected together in construction?
- Steel rebars are commonly connected together in construction using various methods such as overlapping, welding, or using mechanical rebar connectors. The specific method chosen depends on the structural requirements and the type of construction being carried out.
- Q:How do steel rebars affect the overall construction cost of commercial buildings?
- Steel rebars can have a significant impact on the overall construction cost of commercial buildings. These rebars, which are typically used to reinforce concrete structures, play a crucial role in ensuring the strength and durability of the building. Firstly, the cost of steel rebars themselves can add to the construction budget. The price of steel rebars fluctuates based on market conditions and availability, and since they are a necessary component in construction, their cost can have a direct impact on the overall project expenses. Secondly, the installation of steel rebars requires skilled labor and specialized equipment, which adds to the construction cost. Skilled ironworkers are needed to precisely place the rebars in the correct positions as per the structural design. The labor cost associated with this skilled work can be a significant portion of the overall construction budget. Moreover, the amount and density of steel rebars used in the construction also affect the cost. The structural engineer determines the necessary quantity and spacing of rebars based on the building's design and load-bearing capacities. In some cases, more rebars are required to meet specific safety standards or to withstand higher levels of stress. This increased quantity of steel rebars will inevitably lead to higher material and labor costs. However, it is important to note that the use of steel rebars in commercial buildings is essential for ensuring the structural integrity and safety of the construction. While they may contribute to the overall cost, their benefits outweigh the expenses. Steel rebars provide reinforcement to concrete, increasing its tensile strength and ability to withstand external forces such as earthquakes, wind, and heavy loads. This ultimately leads to a longer lifespan for the building and reduces the likelihood of costly repairs or structural failures in the future. In conclusion, steel rebars do impact the overall construction cost of commercial buildings due to the cost of the rebars themselves, the labor required for their installation, and the quantity needed based on the structural design. However, the use of steel rebars is crucial for ensuring the strength and durability of the building, reducing long-term maintenance costs, and ensuring the safety of occupants.
- Q:What are the different methods for reinforcing concrete with steel rebars?
- Some of the different methods for reinforcing concrete with steel rebars include placing the rebars in a grid pattern throughout the concrete structure, using stirrups or ties to hold the rebars in place, and using pre-fabricated mesh or rebar mats as a convenient way to reinforce large areas of concrete. Additionally, epoxy-coated rebars can be used to protect against corrosion and increase the longevity of the reinforced concrete.
- Q:What are the common sizes of steel rebars used in construction?
- The sizes of steel rebars used in construction can vary depending on the specific application and engineering requirements. However, there are several standard sizes that are widely used in the industry. The industry commonly utilizes rebar sizes ranging from #3 to #18. These numbers represent the diameter of the rebar in eighths of an inch. For instance, a #3 rebar has a diameter of 3/8 inch, while a #18 rebar has a diameter of 2 1/4 inches. Regarding metric measurements, the most frequently used rebar sizes range from 10mm to 40mm in diameter. These sizes are typically designated by their nominal diameter in millimeters, such as 10mm, 12mm, 16mm, 20mm, 25mm, 32mm, and 40mm. The selection of the appropriate rebar size depends on various factors, including the required load-bearing capacity, the structural design, and the type of construction project. Smaller diameter rebars, like #3 or 10mm, are typically utilized in lighter construction projects or for smaller concrete elements like walls or slabs. Conversely, larger diameter rebars, like #18 or 40mm, are commonly employed in heavy-duty applications such as bridges, high-rise buildings, or large-scale infrastructure projects. It is important to note that different countries or regions may have their own specific standards regarding rebar sizes. Consequently, it is crucial to consult local building codes and regulations to ensure compliance.
- Q:Can steel rebars be used in structures with high levels of chloride or sulfate attack?
- No, steel rebars should not be used in structures with high levels of chloride or sulfate attack. Chloride attack occurs when chloride ions penetrate the concrete and react with the steel, causing corrosion. This can result in the degradation of the rebars and the overall structural integrity of the building. Similarly, sulfate attack occurs when sulfate ions react with the components of the concrete, leading to the formation of expansive compounds that cause cracking and deterioration. To prevent these types of attacks, alternative materials such as stainless steel rebars or corrosion-resistant alloys should be used in structures exposed to high levels of chloride or sulfate. These materials have a higher resistance to corrosion and can better withstand the aggressive chemical environment. Additionally, proper design and construction techniques, such as adequate concrete cover and the use of protective coatings, can also help mitigate the effects of chloride or sulfate attack. It is important to consult with structural engineers or corrosion specialists to determine the best approach for each specific project.
- Q:What is the role of steel rebars in tunnel lining construction?
- Steel rebars play a crucial role in tunnel lining construction as they provide reinforcement and strength to the concrete structure. They help to withstand the immense pressure, ground movement, and potential seismic forces that tunnels may experience. Rebars enhance the durability and longevity of the tunnel lining by preventing cracks and ensuring structural integrity, making them an essential component of tunnel construction.
- Q:What are the different methods of protecting steel rebars against corrosion?
- There are several methods available for protecting steel rebars against corrosion. These methods can be categorized into two main types: passive and active protection. Passive protection methods involve the use of barrier coatings or inhibitors to prevent corrosive agents from reaching the surface of the steel rebars. One common method is the application of epoxy coatings, which act as a physical barrier between the rebar and the surrounding environment. These coatings can be applied by spray, brush, or immersion, and provide excellent protection against corrosion. Another passive protection method is the use of zinc-based coatings, such as galvanization or zinc-rich paints. These coatings offer sacrificial protection, meaning that the zinc layer corrodes first, thereby preventing the steel rebar from being exposed to corrosive elements. Galvanization is a widely-used method, where the rebar is immersed in molten zinc to form a protective layer. In addition to barrier coatings, inhibitors can also be used to protect steel rebars. Inhibitors work by reducing the corrosive activity of the surrounding environment. Common inhibitors include calcium nitrite, which forms a protective layer on the rebar's surface, and organic compounds like amines and phosphates, which passivate the steel and reduce corrosion rates. Active protection methods involve the use of impressed current cathodic protection (ICCP) or galvanic anodes. ICCP involves the application of a direct electrical current to the steel rebar, which helps to counteract the corrosive forces. This method requires the installation of anodes and a power supply system. Galvanic anodes, on the other hand, are sacrificial metals like aluminum or magnesium that are connected to the steel rebar. The anode corrodes instead of the rebar, providing protection. It is important to note that the choice of protection method depends on various factors, including the environment, exposure conditions, and project requirements. It is often recommended to consult with corrosion experts or engineers to determine the most appropriate method for protecting steel rebars against corrosion in a specific situation.
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Iron rods of 6-25MM HRB400 HRB500 for building
- 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
OKorder Financial Service
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