Steel Ribbed Bar For Construction Hot Rolled

Steel Ribbed Bar For Construction Hot Rolled

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t.

Supply Capability:: 10000 m.t./month

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Specifications

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: (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

Usage and Applications

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

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:What are the common types of steel rebars used in bridge construction?: The common types of steel rebars used in bridge construction are typically hot-rolled, deformed, and epoxy-coated rebars.

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:What is the typical lifespan of steel rebars in a non-corrosive environment?: The typical lifespan of steel rebars in a non-corrosive environment can vary, but they are generally expected to last for several decades or even more than a century.

Q:Can steel rebars be used in the construction of sports stadiums or arenas?: Certainly, the utilization of steel rebars in the construction of sports stadiums or arenas is a viable option. These rebars are frequently employed as reinforcement in concrete structures due to their impressive tensile strength and durability. Their suitability for extensive projects, such as sports stadiums, is evident. By providing extra support and stability, the rebars enable the concrete to withstand the immense loads and forces that occur during events in stadiums and arenas. Moreover, the versatility of steel rebars allows for effortless shaping and bending to match the specific design requirements and needs of the structure, making them an adaptable choice in construction endeavors.

Q:How long do steel rebars typically last before corroding?: Steel rebars typically last for several decades before they start to corrode, depending on various factors such as the quality of the steel, environmental conditions, and the presence of protective coatings.

Q:What are the different types of steel rebars used in high-rise buildings?: High-rise buildings commonly utilize various types of steel rebars due to their strength and durability. These include: 1. Mild Steel Rebars, also known as black bars, are frequently used in construction. They possess a low carbon content and are easily weldable, making them ideal for reinforcing concrete structures. 2. High Strength Deformed (HSD) Steel Rebars have a higher tensile strength than mild steel rebars. They are created through cold twisting or stretching of mild steel bars, resulting in a deformed pattern on the surface that enhances bonding with concrete. 3. Corrosion-Resistant Steel Rebars are utilized in high-rise buildings located in coastal areas or regions with high humidity. They are coated with epoxy or galvanized to protect against moisture and corrosive elements, preventing rust and deterioration. 4. Carbon Steel Rebars, made of carbon steel, have a higher carbon content compared to mild steel rebars. They offer excellent tensile strength and are often employed in high-rise buildings that require additional reinforcement. 5. Stainless Steel Rebars are highly resistant to corrosion and can endure extreme weather conditions. They are commonly used in high-rise buildings that necessitate long-term durability and protection against rust. 6. TMT (Thermo-Mechanically Treated) Steel Rebars are manufactured by subjecting mild steel bars to a combination of heat treatment and mechanical deformation. This process imparts superior strength and ductility to the rebars, making them suitable for high-rise buildings where seismic resistance is crucial. Each type of steel rebar possesses distinct properties and advantages, enabling engineers and construction professionals to select the most suitable type based on the requirements and specifications of the high-rise building project.

Q:What is the role of steel rebars in preventing shrinkage cracks in concrete?: Steel rebars play a crucial role in preventing shrinkage cracks in concrete. Shrinkage cracks occur in concrete due to the natural drying and curing process, as the water content in the concrete evaporates and the material contracts. These cracks can compromise the structural integrity and durability of the concrete. The inclusion of steel rebars in concrete helps to mitigate shrinkage cracks by providing tensile strength. While concrete is strong in compression, it is weak in tension. During the drying process, the rebars act as reinforcement, resisting the tensile forces that develop as the concrete shrinks. This prevents the formation and propagation of shrinkage cracks. The rebars act as a framework or skeleton within the concrete, distributing the tensile stresses and preventing them from concentrating in one area. By restraining the shrinkage of the concrete, the rebars help to maintain the overall integrity and stability of the structure. In addition, steel rebars also enhance the overall strength and load-bearing capacity of the concrete. By adding reinforcement, the concrete becomes more resistant to bending, shearing, and other forces that can lead to cracking. Furthermore, the presence of rebars in concrete also helps to control the width and depth of any cracks that may still occur. By confining and limiting the size of cracks, the rebars prevent them from expanding and potentially compromising the structural integrity of the concrete. In summary, steel rebars play a crucial role in preventing shrinkage cracks in concrete by providing tensile strength, distributing the stresses, enhancing overall strength, and controlling the size of cracks. Their inclusion in concrete ensures a more durable and reliable structure, minimizing the risk of damage and maintaining the longevity of the concrete.

Q:What is the role of steel rebars in preventing structural failures?: The role of steel rebars in preventing structural failures is crucial and integral in the construction industry. Steel rebars, also known as reinforcing bars, are used to reinforce and strengthen concrete structures, ensuring their durability and ability to withstand various forces. One of the primary functions of steel rebars is to enhance the tensile strength of concrete. While concrete is an excellent material for compression, it is relatively weak in tension. The introduction of steel rebars into concrete structures helps to counter this weakness by providing resistance to tensile forces. Steel rebars act as a reinforcement, absorbing and distributing tensile stresses throughout the structure, preventing cracks and fractures from developing and ultimately preventing structural failures. Additionally, steel rebars play a crucial role in preventing structural failures by improving the overall structural stability. By reinforcing concrete, rebars enhance the structural integrity and increase the load-bearing capacity of the structure. This allows the structure to withstand heavier loads and forces, such as those caused by natural disasters, extreme weather conditions, or human activities. Steel rebars are also essential in preventing structural failures caused by corrosion. Concrete structures are exposed to various environmental factors that can lead to corrosion of the reinforcing steel, such as moisture, chemicals, and salts. As steel rebars are typically coated or protected with anti-corrosive materials, they provide a barrier against corrosion, ensuring the long-term durability and integrity of the structure. Furthermore, steel rebars aid in preventing structural failures by providing stability during construction. During the construction process, steel rebars are strategically placed within the concrete forms to provide reinforcement at critical points and areas prone to high stress. This ensures that the structure is stable and can withstand the loads and forces imposed during and after construction. In summary, the role of steel rebars in preventing structural failures is multi-faceted. They enhance the tensile strength of concrete, increase structural stability, prevent corrosion, and provide stability during construction. By reinforcing the concrete, steel rebars significantly contribute to the overall strength, durability, and safety of structures, ultimately preventing structural failures and ensuring the longevity of the built environment.

Q:What is the lifespan of steel rebars in marine structures?: The durability of steel rebars in marine structures can vary due to several factors, including the quality of the steel, the environmental conditions they are exposed to, and the maintenance strategies employed. However, marine structures that are designed, constructed, and maintained appropriately can typically endure for 50 to 100 years. Typically, steel rebars used in marine structures are coated with corrosion-resistant materials, like epoxy or zinc, to shield them from the harsh marine environment. These coatings serve as an extra layer of protection, extending the lifespan of the rebars. Nevertheless, it is crucial to acknowledge that the marine environment is highly corrosive due to the presence of saltwater, humidity, and other corrosive agents. Over time, these elements can cause the deterioration of the protective coatings, exposing the rebars to corrosion. Without adequate maintenance measures, such as regular inspections, cleaning, and reapplication of protective coatings, the rebars may experience accelerated corrosion, leading to a shortened lifespan. Furthermore, the design and construction of marine structures play a critical role in determining the lifespan of steel rebars. It is essential to carefully consider factors like structural design, material selection, and detailing to minimize the risk of corrosion and ensure the longevity of the rebars. To summarize, the lifespan of steel rebars in marine structures can vary from 50 to 100 years based on factors such as steel quality, environmental conditions, and maintenance practices. Proper design, construction, and maintenance are crucial for maximizing the lifespan of steel rebars in marine structures.

Q:Can steel rebars be used in the construction of offshore wind farms?: Yes, steel rebars can be used in the construction of offshore wind farms. They provide structural reinforcement and stability to the foundations and structures of offshore wind turbines, helping withstand the harsh marine environment and strong winds.

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