High quality hot rolled deformed bar 6mm-50mm

High quality hot rolled deformed bar 6mm-50mm System 1

High quality hot rolled deformed bar 6mm-50mm

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t.

Supply Capability:: 20000000 m.t./month

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Product Description:

Specifications of HRB400 Deformed Steel Bar:

Standard	GB	HRB400
Diameter	6mm,8mm,10mm,12mm,14mm,16mm,18mm,20mm, 22mm,25mm,28mm,32mm,36mm,40mm,50mm

Length	6M, 9M,12M or as required
Place of origin	Hebei, China mainland
Advantages	exact size, regular package, chemical and mechanical properties are stable.
Type	Hot rolled deformed steel bar
Brand name	DRAGON

Chemical Composition: (Please kindly find our chemistry of our material based on HRB500 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)
6	28.27	0.222	2.664
8	50.27	0.395	4.74
10	78.54	0.617	7.404
12	113.1	0.888	10.656
14	153.9	1.21	14.52
16	201.1	1.58	18.96
18	254.5	2.00	24
20	314.2	2.47	29.64
22	380.1	2.98	35.76
25	490.9	3.85	46.2
28	615.8	4.83	57.96
32	804.2	6.31	75.72
36	1018	7.99	98.88
40	1257	9.87	118.44
50	1964	15.42	185.04

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

Q: How do steel rebars affect the overall weight of a construction project?: Steel rebars can have a significant impact on the overall weight of a construction project. Rebars are typically used to reinforce concrete structures, such as beams, columns, and foundations, to enhance their strength and durability. As steel rebars are made of high-strength steel, they add substantial weight to the project. The weight of steel rebars can affect various aspects of the construction project. Firstly, the total weight of the rebars needs to be considered during the design phase to ensure that the structure can support the additional load. This is particularly important when constructing high-rise buildings or structures that require heavy reinforcement. Additionally, the weight of steel rebars can impact transportation and logistics. As rebars are generally delivered to the construction site in large quantities, their weight can affect the choice of transportation methods, such as trucks or cranes, and may require special permits or equipment. The weight of rebars also adds to the cost of transportation. Moreover, the overall weight of the construction project affects the foundation requirements. The higher the weight of a structure, the stronger the foundation needs to be to support and distribute the load adequately. This may result in the need for deeper or wider foundations, which can increase costs and construction time. Lastly, the weight of steel rebars can impact the overall sustainability of a construction project. Since the production of steel involves significant energy consumption and emissions, the increased weight of rebars can contribute to a higher carbon footprint. Therefore, it is essential for construction projects to find a balance between reinforcement needs and environmental considerations. In conclusion, steel rebars have a tangible impact on the overall weight of a construction project. Their weight affects the design, transportation, foundation requirements, and sustainability of the project. It is crucial for architects, engineers, and project managers to carefully consider the weight of steel rebars to ensure the structural integrity and efficiency of the construction project.

Q: What are the main uses of steel rebars?: Steel rebars, also known as reinforcing bars, are primarily used in construction and civil engineering projects to provide strength and stability to concrete structures. The main uses of steel rebars include: 1. Reinforcing Concrete: Steel rebars are embedded within concrete structures to enhance their tensile strength. Concrete is excellent at withstanding compressive forces, but it is weak in tension. By adding rebars, the composite material formed (reinforced concrete) can resist both compressive and tensile forces, making it suitable for various applications such as building columns, beams, slabs, and foundations. 2. Structural Stability: Steel rebars play a crucial role in enhancing the structural stability of buildings and infrastructure. They help distribute the load evenly across the structure, preventing cracks, sagging, or collapse. By reinforcing concrete elements with rebars, structures can withstand heavy loads, seismic activity, and other external forces. 3. Bridges and Highways: Steel rebars are extensively used in the construction of bridges and highways. Bridges, being subjected to significant loads and harsh environmental conditions, require strong and durable reinforcement. Steel rebars ensure the longevity and structural integrity of these critical infrastructure projects. 4. Retaining Walls and Tunnels: Retaining walls are designed to hold back soil or other materials and prevent erosion. Steel rebars are commonly used to reinforce these structures, enabling them to withstand the lateral pressures exerted by the retained material. Similarly, in tunnel construction, rebars provide strength to the concrete lining, ensuring stability and preventing collapse. 5. Foundations: Steel rebars are a vital component in the construction of building foundations. They help distribute the weight of the structure evenly to the ground, preventing settlement or sinking. Moreover, rebars help anchor the foundation to the ground, providing stability against soil movement or seismic forces. 6. Pre-stressed and Post-tensioned Concrete: In pre-stressed and post-tensioned concrete construction, steel rebars are used to introduce compressive forces into the concrete members. This technique enhances the structural performance by reducing tensile stress, increasing load-bearing capacity, and minimizing cracking. 7. Masonry Reinforcement: Steel rebars are also utilized to reinforce masonry structures like walls, columns, and arches. By embedding rebars within the mortar joints or cores, the overall strength and stability of the masonry system are improved, allowing it to resist lateral loads and seismic forces. In summary, steel rebars are indispensable in modern construction, providing strength, stability, and durability to concrete structures. With their ability to resist tensile forces, they ensure the safety and longevity of buildings, bridges, highways, tunnels, and other essential infrastructure projects.

Q: What are the maintenance requirements for steel rebars in a structure?: The maintenance requirements for steel rebars in a structure typically involve regular inspections, cleaning, and protection against corrosion. Inspections should be conducted to identify any signs of rust, cracks, or other damage that could compromise the strength of the rebars. Cleaning is essential to remove any dirt, debris, or chemicals that may accumulate on the rebars and accelerate corrosion. Applying protective coatings or coatings that inhibit corrosion can help extend the lifespan of the rebars. Additionally, ensuring proper drainage and preventing moisture buildup in the structure can also contribute to the maintenance of steel rebars.

Q: How do steel rebars contribute to the stability of a structure?: Steel rebars contribute to the stability of a structure by providing reinforcement to the concrete. They enhance the structural strength and integrity of the building, by increasing its resistance to tension, compression, and bending forces. The rebars prevent cracks and failure in the concrete under heavy loads, improving the overall durability and safety of the structure.

Q: What is the role of steel rebars in pile foundation construction?: Pile foundation construction heavily relies on steel rebars, as they serve a vital purpose. These foundations are designed to shift the weight of a structure to deeper layers of soil or rock, ensuring stability and preventing any settling. Steel rebars are utilized in this process to reinforce the concrete piles, thereby increasing their strength and durability. The primary function of steel rebars within pile foundation construction is to provide tensile strength to the concrete. Although concrete is strong under compression, it lacks the ability to withstand tension. By incorporating steel rebars into the concrete, it creates a reinforced structure capable of withstanding both compression and tension forces. In addition, steel rebars play a significant role in preventing cracking and providing structural integrity to the piles. As the piles are subjected to various loads, including vertical and lateral forces, the rebars distribute these loads evenly, preventing any cracking or failure of the concrete under stress. This ensures the stability and longevity of the pile foundation. Moreover, steel rebars contribute to the overall performance of the piles. They enhance the load-carrying capacity of the foundation, enabling it to support heavier structures or loads. The rebars also improve the resistance of the piles against external factors such as earthquakes, wind loads, and soil movement. In summary, steel rebars are essential in pile foundation construction, providing tensile strength, preventing cracking, and enhancing the overall performance and durability of the foundation. Their utilization ensures efficient load transfer and stability, making them an integral component in the construction of robust and dependable structures.

Q: What is the minimum ductility requirement for steel rebars?: The minimum ductility requirement for steel rebars is typically specified as a minimum elongation or reduction in area value, which is commonly set at 14% or 35%, respectively.

Q: How do steel rebars affect the overall noise insulation of a structure?: The overall noise insulation of a structure is minimally affected by steel rebars. This is because noise insulation primarily relies on the density and thickness of the construction materials used for walls, floors, and ceilings. Steel rebars, which are used to reinforce concrete structures, do not make a significant contribution to a building's sound insulation properties. The main purpose of steel rebars is to provide strength and stability to the concrete, ensuring its structural integrity. They are typically embedded within the concrete, thus present throughout the building's framework. However, steel rebars themselves do not possess any sound-absorbing or sound-blocking characteristics. To enhance the noise insulation of a structure, other materials specifically designed for sound insulation, such as insulation boards, acoustic panels, or soundproofing materials, need to be incorporated into the building design. These materials are intended to absorb or block sound waves, reducing the transmission of noise from one area to another. Although steel rebars do not directly contribute to noise insulation, they indirectly play a role in maintaining the overall structural integrity of a building. A well-constructed and sturdy structure can help minimize vibrations and sound transmission caused by external noise sources. Therefore, while steel rebars themselves do not significantly affect noise insulation, their presence indirectly contributes to a more solid and stable building, which can help reduce structural vibrations and unwanted noise.

Q: How do steel rebars contribute to the overall strength of a structure?: Steel rebars contribute to the overall strength of a structure by providing reinforcement against tension and compression forces. They are embedded in concrete to enhance its structural integrity and increase its resistance to cracking or collapsing under heavy loads. The rebars help distribute the applied stress more evenly throughout the structure, improving its resistance to bending or shearing. Ultimately, steel rebars significantly enhance the strength, durability, and stability of a structure, making it capable of withstanding various external forces and ensuring its long-term structural integrity.

Q: What is the role of steel rebars in ensuring occupant safety?: Various structures, particularly buildings and infrastructure, rely on steel rebars to ensure occupant safety. These reinforced steel bars are commonly used in concrete construction to strengthen and prolong the lifespan of the structure. Ultimately, this safeguards the individuals residing or working within these structures. Steel rebars have a primary function of providing structural reinforcement to concrete elements like columns, beams, and slabs. By incorporating rebars into the concrete, the overall load-bearing capacity of the structure is greatly increased. This allows it to endure external forces and loads, significantly reducing the risk of collapse or structural failure that could harm the occupants. During seismic events, such as earthquakes, steel rebars play a crucial role in dissipating and distributing the energy exerted on the structure. The ductility and tensile strength of steel enable it to absorb and distribute seismic forces, minimizing the chances of a sudden structural failure. Consequently, occupants are protected from potential hazards associated with seismic activity. Additionally, steel rebars enhance the fire resistance of concrete structures. While concrete itself possesses good fire-resistant properties, the inclusion of steel rebars further strengthens this resistance. Steel has a high melting point and low thermal conductivity compared to other materials. This means that steel rebars can withstand high temperatures for an extended period, ensuring the building's structural integrity during a fire and providing occupants with a safe evacuation route. Furthermore, steel rebars contribute to the long-term durability and maintenance of the structure. They prevent cracks and minimize the effects of corrosion, maintaining the concrete's structural integrity over time. This ensures that occupants are not exposed to potential hazards caused by structural deterioration. In summary, the role of steel rebars in ensuring occupant safety is essential. They provide structural reinforcement, increase load-bearing capacity, enhance fire resistance, and contribute to the long-term durability of a structure. By incorporating steel rebars into concrete construction, the risk of collapse, structural failure, and other potential hazards is significantly reduced, ultimately creating a safe environment for occupants.

Q: Can steel rebars be used in structures with heavy dynamic loads?: Yes, steel rebars can be used in structures with heavy dynamic loads. Steel rebars are commonly used in reinforced concrete structures to provide tensile strength and improve the overall structural integrity. They are specifically designed to withstand heavy loads, including dynamic loads such as those caused by vibrations, earthquakes, or moving vehicles. The high tensile strength of steel rebars allows them to absorb and distribute the dynamic loads effectively, preventing structural failure or collapse. Additionally, steel rebars have excellent fatigue resistance, which means they can withstand repeated loading and unloading cycles without losing their strength or integrity. To ensure proper performance under heavy dynamic loads, engineers consider various factors such as the size, shape, and spacing of rebars, as well as the concrete quality and the design of the structure itself. By carefully designing and reinforcing the structure with steel rebars, it is possible to create a safe and durable building that can withstand heavy dynamic loads.

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