Iron rods of 6-25MM HRB400 HRB500 for building

Iron rods of 6-25MM HRB400 HRB500 for building

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 100 m.t.

Supply Capability:: 18000 m.t./month

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Hot Rolled Deformed Steel Rebars for Buildings ASTM Standard

Specification

Standard:

AISI,ASTM,JIS,EN

Technique:

Hot Rolled

Shape:

Round

Surface Treatment:

Dry

Steel Grade:

RHB335,HRB400

Certification:

ISO,SGS

Thickness:

6-25mm

Length:

5.8-12m

Net Weight:

102mt

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. 2).30% T/T prepaid and the balance against the copy of B/L. 3).30% T/T prepaid and the balance against L/C
Delivery time	15-30 days after receipt of L/C or deposit by T/T

Iron rods of 6-25MM HRB400 HRB500 for building

Packing:

In bundles, each bundle weight 3.5 tons. Load by container or by bulk verssel.

Iron rods of 6-25MM HRB400 HRB500 for building

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 disadvantages of using steel rebars?: Yes, there are some disadvantages of using steel rebars. 1. Corrosion: One of the main disadvantages of steel rebars is their susceptibility to corrosion. When exposed to moisture and oxygen, steel rebars can rust over time, which weakens their structural integrity. This issue can be particularly problematic in coastal areas with high humidity levels or in structures exposed to harsh weather conditions. 2. Weight: Steel rebars are relatively heavy compared to other alternatives like fiberglass or carbon fiber reinforced polymers. This can pose challenges during transportation and installation, especially in large-scale construction projects where heavy machinery is required to move and position the rebars. 3. Cost: Steel rebars tend to be more expensive compared to other reinforcement materials, which can increase the overall cost of a construction project. Additionally, the price of steel is subject to market fluctuations, making it difficult to predict the exact budget for reinforcement materials. 4. Conductivity: Steel rebars are highly conductive to heat and electricity. This can be a disadvantage in structures that require insulation or in areas with high electrical conductivity requirements. In such cases, additional insulation or grounding measures may need to be implemented, adding extra complexity and cost to the construction process. 5. Environmental impact: Steel production is energy-intensive and contributes to greenhouse gas emissions. The extraction and processing of iron ore to manufacture steel rebars can have a significant environmental impact, including deforestation, habitat destruction, and air and water pollution. Despite these disadvantages, steel rebars remain widely used in construction due to their high tensile strength, durability, and proven track record in providing structural support. Additionally, advancements in corrosion-resistant coatings and the development of alternative reinforcement materials are continuously being explored to mitigate these drawbacks.

Q: Are steel rebars suitable for use in earthquake-resistant structures?: Indeed, steel rebars are a suitable choice for incorporation into earthquake-resistant structures. Commonly referred to as reinforcing bars, steel rebars are frequently utilized in construction projects to provide structural strength and reinforcement. They have been proven to effectively enhance the strength and ductility of concrete structures, rendering them more resistant to seismic forces. During the occurrence of an earthquake, structures are subjected to vigorous shaking and ground motion. Steel rebars play a pivotal role in evenly distributing and dissipating the energy generated by these seismic forces, thus decreasing the susceptibility of a structure to damage or collapse. Their utilization contributes to the overall enhancement of structural integrity and stability, empowering buildings and other infrastructure to endure the lateral and vertical forces associated with earthquakes. Furthermore, steel rebars possess exceptional tensile strength, which is paramount for seismic resistance. In contrast to concrete, which excels in compression but lacks resilience in tension, steel rebars furnish the necessary reinforcement to counteract tensile stresses induced by seismic activity. This capability to withstand both compression and tension renders steel rebars an optimal selection for earthquake-resistant structures. In addition, steel rebars can be configured and installed in a manner that provides additional ductility to a structure. Ductility denotes the capacity of a material to undergo deformation without fracturing. Structures exhibiting greater ductility can experience significant deformations and absorb energy during an earthquake, consequently diminishing the likelihood of catastrophic failure. Steel rebars are renowned for their elevated ductility, affording them the ability to effectively absorb and dissipate seismic energy. To conclude, steel rebars prove to be highly appropriate for inclusion in earthquake-resistant structures. Their strength, capacity to withstand both compression and tension, and exceptional ductility position them as indispensable components in guaranteeing the structural integrity and safety of buildings and infrastructure in regions prone to seismic activity.

Q: Are there any environmental concerns associated with steel rebars?: Yes, there are certain environmental concerns associated with steel rebars. The production of steel rebars requires a significant amount of energy and releases greenhouse gases, contributing to climate change. Additionally, the extraction and mining of iron ore for steel production can lead to habitat destruction and water pollution. However, the recycling potential of steel rebars helps mitigate some environmental impacts by reducing the need for virgin steel production and decreasing waste.

Q: What are the guidelines for the proper anchoring of steel rebars in walls?: The guidelines for proper anchoring of steel rebars in walls typically involve factors such as the rebar size, spacing, embedment depth, and the type of wall construction. It is important to follow building codes and structural engineering standards specific to your region. Generally, rebars should be adequately spaced and securely anchored into the surrounding concrete or masonry to ensure proper load transfer and structural integrity. Additionally, proper cover thickness should be maintained to protect rebars from corrosion and ensure long-term durability.

Q: How do steel rebars affect the overall cost of maintenance and repairs?: Steel rebars can have a significant impact on the overall cost of maintenance and repairs in various structures. Firstly, steel rebars are commonly used to reinforce concrete structures such as buildings, bridges, and highways. These rebars provide strength and durability to the concrete, helping to prevent cracks and structural failures. When it comes to maintenance, steel rebars can play a crucial role in reducing the frequency and costs of repairs. By reinforcing the concrete, rebars help to distribute stress and load evenly, minimizing the chances of structural damage. This means that maintenance and repair works will be less frequent, saving both time and money for property owners or infrastructure managers. Moreover, steel rebars also contribute to the longevity of structures. By preventing cracks and other forms of damage, rebars help to extend the lifespan of the concrete. This reduces the need for costly and extensive repairs or even the complete replacement of the structure in the long run. However, it is important to note that steel rebars may also require maintenance themselves. Over time, rebars can corrode due to exposure to moisture, chemicals, or environmental factors. This corrosion can weaken the rebars and compromise the integrity of the structure. Therefore, periodic inspection and maintenance of the rebars are necessary to prevent any potential issues. In conclusion, steel rebars have a significant impact on the overall cost of maintenance and repairs. While they contribute to the strength and durability of structures, reducing the need for frequent repairs, they also require their own maintenance to prevent corrosion. Properly maintained steel rebars can help to extend the lifespan of structures and save costs in the long term.

Q: Can steel rebars be used in structures with high humidity levels?: Yes, steel rebars can be used in structures with high humidity levels. Steel rebars are commonly used in construction projects, including those in high humidity environments such as coastal areas or buildings with high moisture content. However, it is important to ensure that the steel rebars are properly protected against corrosion to maintain their structural integrity. This can be achieved by applying appropriate coatings or using corrosion-resistant steel rebars like stainless steel or epoxy-coated rebars. Regular maintenance and inspection are also necessary to prevent any potential corrosion issues and ensure the long-term durability of the structure.

Q: What is the maximum spacing allowed between steel rebars in concrete slabs?: The maximum spacing allowed between steel rebars in concrete slabs typically depends on various factors such as the thickness of the slab, the load it will bear, and the design requirements. However, as a general guideline, the maximum spacing is often specified to be around 3 times the slab thickness or 18 inches (whichever is less) to ensure proper reinforcement and structural integrity.

Q: Can steel rebars be used in tunneling and mining operations?: Yes, steel rebars can be used in tunneling and mining operations. Rebars, which are steel bars commonly used to reinforce concrete structures, can also be employed in underground construction projects such as tunnels and mines. These steel bars provide additional strength and stability to the structures in these environments, ensuring durability and safety. In tunneling projects, rebars are often embedded in shotcrete or concrete linings to enhance the structural integrity of the tunnel walls and prevent collapse. Similarly, in mining operations, rebars are used to reinforce the roofs, walls, and support structures within the mine, safeguarding against potential hazards such as rockfalls and cave-ins. The use of steel rebars in tunneling and mining operations is crucial for maintaining the integrity and stability of these underground structures.

Q: How do steel rebars improve the structural integrity of a building?: Enhancing the structural integrity of buildings, steel rebars, also known as reinforcement bars, play a crucial role. Used in concrete construction, they provide strength, durability, and resistance against different forces that a structure may face. One way in which steel rebars enhance the structural integrity of a building is by increasing its load-bearing capacity. When rebars reinforce concrete, it becomes more capable of withstanding heavy loads and forces generated by gravity, wind, earthquakes, or dynamic loads from human activities. Acting as a network of reinforcement, the rebars distribute the load evenly throughout the structure, preventing excessive deflection and minimizing the risk of structural failure. Furthermore, steel rebars improve the tensile strength of concrete, which is traditionally weak in tension. While concrete is excellent at bearing compression forces, it lacks the ability to efficiently resist pulling or stretching forces. By incorporating rebars into the concrete, the combination of materials works together to withstand compression and tension forces more effectively. This prevents cracks and fractures from spreading in the concrete, as the rebars act as a support system that holds the structure together. Another advantage of using steel rebars is their resistance to corrosion. Steel is highly durable and can withstand harsh environmental conditions, reducing the risk of degradation over time. This ensures the longevity of the building's structural elements and reduces the need for expensive repairs or replacements. Additionally, steel rebars offer flexibility in design and construction. They can be molded into various shapes and sizes to meet specific structural requirements, allowing for optimal distribution of reinforcement where it is most needed. This flexibility enables architects and engineers to design buildings that are aesthetically pleasing and safe, without compromising on structural integrity. In conclusion, steel rebars significantly enhance the structural integrity of buildings by increasing load-bearing capacity, improving tensile strength, resisting corrosion, and providing design flexibility. By reinforcing concrete, they ensure that structures are better equipped to withstand various forces and maintain stability and safety over time.

Q: What is the process of galvanizing steel rebars?: The process of galvanizing steel rebars involves the application of a layer of zinc to the surface of the rebar in order to prevent corrosion and prolong its lifespan. The process typically consists of the following steps: 1. Surface Preparation: The steel rebars are cleaned thoroughly to eliminate any dirt, oil, or scale from the surface. This is typically achieved through the use of chemical cleaning agents and mechanical methods, such as sandblasting or shot blasting. 2. Pickling: Once cleaned, the rebars are submerged in a pickling solution, usually a mixture of hydrochloric acid and water. This solution eliminates any remaining impurities or oxides from the surface of the rebars. 3. Fluxing: The pickled rebars are then rinsed to eliminate any residual acid and are immersed in a flux solution. The flux solution aids in the removal of any remaining oxides and ensures proper adhesion of the zinc coating. 4. Galvanizing: The fluxed rebars are then dipped into a molten zinc bath. The temperature of the zinc bath is typically kept between 815 to 850 degrees Fahrenheit (435 to 455 degrees Celsius). The rebars are carefully immersed and then slowly withdrawn to allow excess zinc to drain off. 5. Quenching: After the galvanizing process, the rebars may be rapidly cooled in a specialized solution to stabilize the zinc coating. This step helps to prevent the excessive formation of zinc oxide on the surface. 6. Inspection: Once the galvanized rebars have cooled down, they undergo a comprehensive inspection to ensure the quality of the coating. Visual inspection, thickness measurement, and adhesion tests are commonly conducted to assess the integrity of the zinc coating. Overall, the galvanizing process provides a robust and effective protective coating for steel rebars, rendering them highly resistant to corrosion and extending their lifespan in a variety of applications, including construction, reinforcement, and infrastructure projects.

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