Deformed bars with grade HRB400,high quality

Deformed bars with grade HRB400,high quality System 1

Deformed bars with grade HRB400,high quality

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t.

Supply Capability:: 100000 m.t./month

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Product Description:

Specifications of HRB400 Deformed Steel Bar:

Standard	GB	HRB400
Diameter	10mm-32mm

Length	6M, 12M
Place of origin	Hebei, China mainland
Advantages	exact size, regular package, chemical and mechanical properties are stable.
Type	Hot rolled deformed steel bar

Chemical Composition: (Please kindly find our chemistry of our material based on HRB400 as below for your information)

Grade	Technical data of the original chemical composition (%)
	C	Mn	Si	S	P		V
HRB400	≤0.25	≤1.60	≤0.80	≤0.045	≤0.045		0.04-0.12
	Physical capability
	Yield Strength (N/cm²)		Tensile Strength (N/cm²)			Elongation (%)
	≥400		≥570			≥14

Theoretical weight and section area of each diameter as below for your information:

Diameter(mm)	Section area (mm²)	Mass(kg/m)	Weight of 12m bar(kg)
18	254.5	2.00	24
20	314.2	2.47	29.64
22	380.1	2.98	35.76

Usage and Applications of HRB400 Deformed Steel Bar:

Deformed bar is widely used in buildings, bridges, roads and other engineering construction. Big to highways, railways, bridges, culverts, tunnels, public facilities such as flood control, dam, small to housing construction, beam, column, wall and the foundation of the plate, deformed bar is an integral structure material. With the development of world economy and the vigorous development of infrastructure construction, real estate, the demand for deformed bar will be larger and larger..

Packaging & Delivery of HRB400 Deformed Steel Bar:

Packaging Detail: products are packed in bundle and then shipped by container or bulk vessel, deformed bar is usually naked strapping delivery, when storing, please pay attention to moisture proof. The performance of rust will produce adverse effect.

Each bundle weight: 2-3MT, or as required

Payment term: TT or L/C

Delivery Detail: within 45 days after received advanced payment or LC.

Label: to be specified by customer, generally, each bundle has 1-2 labels

Trade terms: FOB, CFR, CIF

Deformed bars with grade HRB400,high quality

*If you would like to get our price, please inform us the size, standard/material and quantity. Thank you very much for your attention.

Q: How are steel rebars used in the construction of airports?: Steel rebars are used in the construction of airports to reinforce and strengthen concrete structures such as runways, taxiways, terminal buildings, and other infrastructure. These rebars are embedded within the concrete to provide tensile strength and prevent cracking, ensuring the structural integrity and durability of the airport facilities.

Q: Are steel rebars suitable for use in earthquake-resistant structures?: Yes, steel rebars are suitable for use in earthquake-resistant structures. Steel rebars are strong, durable, and have excellent tensile strength, making them an ideal material for reinforcing concrete in earthquake-prone areas. They help to enhance the structural integrity of buildings and provide resistance against seismic forces, reducing the risk of collapse during an earthquake.

Q: 12 of the threaded steel can replace 16 of the screw steel? But the same proportion. Thanks: Now Tianjin Tiantai into 12 of the price is 3900 yuan a ton, 16 tons of steel a price is 3850 yuan. 12 of thread steel is 50 yuan more expensive than 16 thread steel.

Q: What is the effect of steel rebars on the thermal conductivity of concrete?: The presence of steel rebars in concrete has a significant effect on its thermal conductivity. Steel is a good conductor of heat, meaning it can easily transfer thermal energy through its structure. When steel rebars are embedded within concrete, they create a pathway for heat to flow through the material. This thermal conductivity of steel rebars can have both positive and negative implications on the overall thermal performance of concrete structures. On one hand, it can enhance the overall heat transfer within the structure, allowing for more efficient heating or cooling. This can be advantageous in applications where thermal conductivity is desired, such as in building designs that require active temperature control. However, the presence of steel rebars can also lead to increased heat loss or gain depending on the environmental conditions. In situations where there is a temperature difference between the inside and outside of the structure, the steel rebars can act as thermal bridges, allowing heat to escape or enter the building more easily. This can result in higher energy consumption for heating or cooling purposes. To mitigate these potential issues, additional insulation measures can be implemented to reduce the thermal bridging effect caused by steel rebars. This could include using thermal break materials or coatings, or adopting insulation techniques such as adding foam or other insulating materials around the rebars. In summary, steel rebars in concrete have a significant impact on its thermal conductivity. While they can enhance heat transfer within the structure, they can also lead to increased heat loss or gain. Proper insulation measures should be considered to minimize the negative effects of thermal bridging caused by steel rebars.

Q: How do steel rebars affect the overall maintenance requirements of a structure?: Steel rebars can greatly impact the overall maintenance requirements of a structure by enhancing its durability and longevity. The use of steel rebars in reinforced concrete structures increases their strength and resistance to structural failures such as cracks or collapses. This, in turn, reduces the need for frequent repairs and maintenance, ultimately extending the lifespan of the structure. Additionally, steel rebars provide increased resistance to corrosion, limiting the damage caused by environmental factors. Overall, the incorporation of steel rebars in construction helps minimize maintenance needs, ensuring a safer and more sustainable structure in the long run.

Q: How do steel rebars affect the maintenance requirements of a structure?: Steel rebars, also known as reinforcing bars, play a significant role in the maintenance requirements of a structure. These bars, made of steel, are embedded within concrete to provide strength and durability to the structure. One of the primary ways steel rebars affect maintenance is by enhancing the overall structural integrity of a building or infrastructure. The presence of rebars significantly increases the load-bearing capacity of concrete, allowing it to withstand external forces such as wind, earthquakes, and heavy loads. This reinforcement helps prevent cracks, deformations, and structural failures, ultimately reducing the maintenance needs of a structure. Furthermore, steel rebars also contribute to the longevity of a structure. By providing tensile strength to concrete, they protect it from the effects of shrinkage and expansion caused by temperature fluctuations. These rebars act as a framework that holds the concrete together, minimizing the risk of cracks and ensuring the structural stability of the building over time. Consequently, the maintenance requirements are reduced as the structure remains intact and resilient against environmental factors. However, it is important to note that steel rebars can also influence maintenance requirements in certain circumstances. If the rebars are not properly designed, installed, or protected, they can be susceptible to corrosion. Corrosion occurs when moisture and oxygen penetrate the concrete and reach the steel, causing it to rust. Rusting rebars can lead to the expansion of steel, creating internal pressure that can result in cracking and spalling of the concrete. Thus, regular inspections, maintenance, and protection measures such as epoxy coating or cathodic protection systems are necessary to prevent corrosion and ensure the longevity of the structure. In conclusion, steel rebars positively impact the maintenance requirements of a structure by enhancing its strength, durability, and longevity. They reduce the need for repairs and maintenance caused by structural failures and increase the overall resilience against external forces. However, proper design, installation, and protection of rebars are crucial to avoid corrosion-related issues that could increase maintenance needs.

Q: How do steel rebars affect the thermal conductivity of concrete?: Steel rebars have a minimal impact on the thermal conductivity of concrete. Since steel is a good conductor of heat, the presence of steel rebars in concrete can slightly increase its thermal conductivity. However, the effect is generally insignificant due to the low volume fraction of steel rebars compared to the concrete matrix.

Q: What are the different types of steel rebars used in marine construction?: In marine construction projects, various types of steel rebars are utilized to withstand the harsh conditions and corrosive environments commonly found in marine structures. 1. Stainless Steel Rebars: These rebars, containing chromium and nickel, are crafted from high-grade stainless steel. They exhibit exceptional resistance to corrosion, making them ideal for marine construction projects where exposure to saltwater and other corrosive elements is anticipated. Though more expensive, stainless steel rebars offer superior durability and longevity. 2. Epoxy-Coated Rebars: Carbon steel rebars are coated with an epoxy layer, acting as a protective barrier against corrosive elements and reducing the risk of rust and corrosion. These rebars are commonly employed in marine construction projects with high saltwater exposure. 3. Galvanized Rebars: By subjecting carbon steel rebars to a hot-dip galvanization process, a layer of zinc is applied, providing excellent corrosion resistance. Galvanized rebars are frequently used in marine construction projects susceptible to seawater or salt spray exposure. 4. Fiberglass Rebars: Composed of high-strength glass fibers embedded in a polymer matrix, fiberglass rebars offer excellent corrosion resistance unaffected by saltwater or other corrosive elements. These rebars are lightweight, non-magnetic, and possess high tensile strength, making them suitable for marine construction projects. 5. Carbon Steel Rebars: Carbon steel rebars are the most commonly used rebars in construction, including marine projects. Although not inherently corrosion-resistant, they can be treated with protective coatings, such as epoxy or galvanization, to enhance their durability and resistance to corrosive environments. It is crucial to consider the specific requirements and conditions of a marine construction project when selecting the appropriate type of steel rebars. Factors such as saltwater exposure, humidity, and anticipated lifespan of the structure should be taken into account to ensure its longevity and safety.

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: Can steel rebars be used in road and bridge barriers?: Yes, steel rebars can be used in road and bridge barriers. Steel rebars provide strength and durability, making them suitable for reinforcing barriers and ensuring their ability to withstand impact forces.

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