Hot-Rolled HRB400 Reinforced Deformed Steel Bar

Hot-Rolled HRB400 Reinforced Deformed Steel Bar

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 30 m.t.

Supply Capability:: 100000 m.t./month

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Item specifice

Standard:

ASTM,JIS,EN,API,DIN,BS,GB,AISI

Technique:

Extruded,Saw,Forged,ERW,Cold Drawn,Cold Rolled,Hot Rolled,Spring,EFW

Shape:

LTZ,Oval,Rectangular,Round,Hexagonal,C Channel,Square,U Channel

Surface Treatment:

Dry,Polished,Bright,Black,PVDF Coated,Oiled,Color Coated,Copper Coated,Coated,Galvanized,Chromed Passivation

Steel Grade:

Q195,Q215,Q235,Q215B,Q235B,RHB335,HRB400,200 Series,300 Series,400 Series,600 Series,SS400-SS490,10#,20#,A53(A,B)

Certification:

ISO,SGS,BV,IBR,RoHS,CE,API,BSI,UL

Thickness:

Length:

Net Weight:

Product Description:

Specifications of Hot-Rolled HRB400 Reinforced 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

Chemical Composition of Hot-Rolled HRB400 Reinforced Deformed Steel Bar

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

Usage and Applications of Hot-Rolled HRB400 Reinforced 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 Hot-Rolled HRB400 Reinforced 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

Note:

1. Our products are produced according to national standard (GB), if not, supply according to national standards (GB) or agreement as customer required.

2. Other Grade and Standard Deformed Steel Bar we can supply:

Grade: GR40/GR60, G460B/B500A/B500B/B500C,BST500S

Standard: ASTM, BS, DIN

The Minimum Order Quantity of these products is high, and need to be confirmed.

3. We can not only supply Deformed Steel Bar; if you need anything about building materials, please contact us for further information.

4. Please send us your detail specifications when inquire. We will reply to you as soon as possible. We sincerely hope we can establish a long stable business relationship.

Q:Are steel rebars fire resistant?: Yes, steel rebars are generally considered to be fire resistant. Steel is an incombustible material, meaning it does not burn or contribute to the spread of fire. In the case of fire, steel rebars can withstand high temperatures for an extended period without losing their structural integrity. This is due to the high melting point of steel, which is around 1370 degrees Celsius (2500 degrees Fahrenheit). Additionally, steel rebars are often encased in concrete during construction, providing an additional layer of protection against fire. However, it is worth noting that in extremely intense and prolonged fire conditions, steel can eventually weaken and lose its load-bearing capacity. Therefore, fire protection measures such as fire-resistant coatings or fireproofing materials are sometimes applied to further enhance the fire resistance of steel structures.

Q:How do steel rebars perform in fire-resistant constructions?: Steel rebars perform well in fire-resistant constructions due to their high melting point and thermal conductivity. They can withstand high temperatures for an extended period without significant deformation or loss of strength. This makes them suitable for reinforcing concrete structures in fire-prone areas, providing stability and structural integrity during a fire. Additionally, the thermal conductivity of steel helps to dissipate heat, reducing the risk of localized temperature increases that could compromise the overall fire resistance of the construction.

Q:How do steel rebars affect the overall sustainability certifications of a structure?: Steel rebars can have a significant impact on the overall sustainability certifications of a structure. Sustainability certifications, such as LEED (Leadership in Energy and Environmental Design) or BREEAM (Building Research Establishment Environmental Assessment Method), evaluate the environmental performance of a building based on various factors, including the materials used. When it comes to steel rebars, their production and use can influence the sustainability of a structure in several ways. Firstly, the production of steel involves significant energy consumption and greenhouse gas emissions. However, many steel manufacturers have implemented energy-efficient technologies and utilize recycled materials to minimize their environmental footprint. Therefore, the sustainability of steel rebars largely depends on the production methods and the extent to which recycled content is used. Furthermore, the durability and longevity of steel rebars play a crucial role in the sustainability of a structure. Steel is known for its strength and resilience, which can significantly enhance the lifespan of a building. This reduces the need for frequent repairs and replacements, thereby reducing material waste and energy consumption associated with ongoing maintenance. Additionally, steel rebars can contribute to the overall structural efficiency of a building. By reinforcing concrete, they improve the structural integrity and load-bearing capacity, allowing for more efficient use of materials. This can lead to reduced material consumption and waste during construction, which is an essential aspect of sustainability. Moreover, steel rebars can be recycled at the end of a building's life cycle. Steel is a highly recyclable material and can be repurposed into new rebars or other steel products, reducing the demand for virgin materials. This recycling process further minimizes the environmental impact associated with steel production. In summary, steel rebars can affect the overall sustainability certifications of a structure through various factors, including the production methods, durability, structural efficiency, and recyclability. By using sustainable production methods, enhancing durability, optimizing material usage, and promoting recycling, steel rebars can contribute positively to the sustainability of a building and help achieve higher sustainability certifications.

Q:What is the impact of steel rebars on the overall maintenance of a building?: Steel rebars have a significant impact on the overall maintenance of a building. These reinforcement bars provide structural strength and stability by enhancing the tensile strength of concrete. By preventing cracks and minimizing structural damage, steel rebars reduce the need for frequent repairs and maintenance. Additionally, their corrosion resistance properties enhance the longevity of the building, reducing maintenance costs and ensuring its structural integrity in the long run.

Q:What is the role of steel rebars in the construction of parking structures?: The role of steel rebars in the construction of parking structures is to provide reinforcement and strength to the concrete. Rebars are placed within the concrete to absorb tension and enhance the structural integrity of the parking structure, ensuring its ability to withstand heavy loads and resist cracking or collapsing. They help distribute the load evenly throughout the structure, preventing any potential failures and ensuring the safety and durability of the parking facility.

Q:How do steel rebars improve the structural integrity of a building?: Steel rebars, also known as reinforcement bars, play a crucial role in enhancing the structural integrity of buildings. They are used in concrete construction to provide strength, durability, and resistance to various forces that a structure may encounter. One key way steel rebars improve the structural integrity of a building is by increasing its load-bearing capacity. When concrete is reinforced with rebars, it becomes more capable of withstanding heavy loads and forces such as those generated by gravity, wind, earthquakes, or even dynamic loads from human activities. The rebars act as a reinforcement network, distributing the load more evenly throughout the structure, preventing excessive deflection, and minimizing the risk of structural failure. Moreover, steel rebars improve the tensile strength of concrete, which is traditionally weak in tension. Concrete is great at bearing compression forces but lacks the ability to effectively resist pulling or stretching forces. By incorporating rebars into the concrete, the combination of materials works together to withstand both compression and tension forces more efficiently. This prevents cracks and fractures from propagating 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 decreases the need for costly repairs or replacements. Additionally, steel rebars provide flexibility in design and construction. They can be molded into various shapes and sizes to accommodate specific structural requirements, making it possible to optimize the distribution of reinforcement where it is needed most. This flexibility allows architects and engineers to design buildings that are both aesthetically pleasing and safe, without compromising on structural integrity. In conclusion, steel rebars significantly improve the structural integrity of buildings by increasing load-bearing capacity, enhancing tensile strength, resisting corrosion, and providing design flexibility. By reinforcing concrete, they ensure that structures are better equipped to withstand various forces and maintain their stability and safety over time.

Q:Are there any standards for the spacing of steel rebars in concrete?: Yes, there are standards for the spacing of steel rebars in concrete. The purpose of these standards is to ensure structural integrity and durability of the reinforced concrete. The specific spacing requirements may vary depending on factors such as the type of structure, load conditions, and local building codes. In the United States, the American Concrete Institute (ACI) provides guidelines for rebar spacing in their publication ACI 318, "Building Code Requirements for Structural Concrete." According to ACI 318, the minimum spacing between parallel reinforcing bars should not be less than the maximum bar size or 1.5 times the diameter of the largest coarse aggregate used in the concrete, whichever is larger. For example, if the maximum bar size is 12mm and the largest coarse aggregate size is 20mm, the minimum spacing between the rebars should be 30mm (1.5 times the largest aggregate size). This ensures that there is adequate concrete cover around each rebar to protect it from corrosion and to provide sufficient bond strength. In addition to the minimum spacing, ACI 318 also provides guidelines for the maximum spacing of rebars. These guidelines consider factors such as the size and shape of the concrete member, the type of loading it will experience, and the required strength. The maximum spacing is typically determined to prevent excessive cracking and ensure proper distribution of loads throughout the structure. It is important to note that local building codes and regulations may have additional requirements or variations from the ACI standards. Therefore, it is always advisable to consult the relevant building codes or work with a qualified structural engineer to ensure compliance with the specific spacing requirements for steel rebars in concrete in your area.

Q:How do steel rebars affect the overall strength of concrete structures?: Steel rebars significantly contribute to the overall strength and durability of concrete structures. They are commonly used as reinforcement in concrete to enhance its tensile strength, which is the ability to withstand pulling or stretching forces. Concrete on its own is strong in compression but weak in tension. When external forces like bending or stretching are applied to the concrete, it tends to crack and fail. This is where steel rebars play a crucial role. By adding rebars to the concrete, the tensile strength of the structure is greatly improved. The rebars act as a strong skeleton within the concrete, providing resistance against tensile forces. When the concrete is subjected to tension, the rebars take up the load and distribute it evenly, preventing cracks from forming and enhancing the overall strength of the structure. This reinforcement also helps to limit the propagation of cracks, ensuring that the structure remains intact and stable even under substantial loads or adverse conditions. Moreover, steel rebars also enhance the structural integrity of concrete structures by improving their resistance to bending, shearing, and torsional forces. They increase the stiffness and stiffness modulus of the concrete, making it more resistant to deformation and enhancing its load carrying capacity. In addition to improving the structural strength, steel rebars also play a vital role in preventing corrosion of the concrete. They are made of corrosion-resistant materials, such as stainless steel or galvanized steel, which protects the concrete from moisture and other corrosive elements. This ensures the longevity and durability of the concrete structure. In conclusion, steel rebars significantly enhance the overall strength and durability of concrete structures by improving their tensile strength, resistance to bending and shearing forces, and preventing corrosion. They provide the necessary reinforcement to make the concrete capable of withstanding external forces, ensuring the safety and longevity of the structure.

Q:Can steel rebars be used in industrial construction?: Yes, steel rebars are commonly used in industrial construction. They provide strength, durability, and structural support to reinforced concrete structures, making them ideal for heavy-duty applications in industrial settings.

Q:What is the process of reinforcing concrete walls with steel rebars?: The process of reinforcing concrete walls with steel rebars involves several steps to ensure the strength and integrity of the structure. Firstly, the design and layout of the rebars is determined by engineers based on the specific requirements of the wall. This includes the diameter, spacing, and placement of the rebars. Once the design is finalized, the construction of the concrete wall begins. The rebars are typically placed in a grid-like pattern within the formwork or molds. They are positioned at predetermined intervals and secured in place using wire ties or other fastening methods. During the pouring of the concrete, the rebars are completely encased within the mixture. This ensures that the concrete and steel work together to resist tension forces and provide added strength to the wall. After the concrete has been poured and cured, the rebars become an integral part of the structure. They act as a reinforcement by absorbing and distributing the tensile forces that may occur due to external loads or environmental factors. In addition to the initial reinforcement, construction workers may also install vertical rebars along the height of the wall, commonly known as wall ties. These rebars provide further stability and prevent the wall from cracking or collapsing under pressure. Overall, the process of reinforcing concrete walls with steel rebars involves careful planning, precise placement, and proper integration between the rebars and the concrete. This reinforcement technique significantly increases the strength and durability of the walls, making them capable of withstanding greater loads and ensuring the safety of the structure.

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