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 protected during the concrete pouring process?: To ensure the longevity and structural integrity of steel rebars during the concrete pouring process, several protective measures are implemented. Initially, prior to pouring the concrete, the rebars undergo meticulous cleaning to eliminate any rust, dirt, or contaminants that may compromise the bond between the rebar and the concrete. This is typically achieved by utilizing a wire brush or other mechanical methods. Once the rebars have been thoroughly cleaned, a common practice is to apply a protective layer or coating to them. An epoxy coating is frequently employed for this purpose. The coating acts as a barrier, preventing moisture and chemicals from reaching the steel and causing corrosion. Epoxy coatings are especially valuable in high-risk environments like marine structures or areas with a high chloride content. Another protective method involves the use of corrosion inhibitors. These inhibitors are added to the concrete mixture, which subsequently forms a protective layer around the rebars. By reducing the corrosive effects of chloride ions, oxygen, and other chemicals, the inhibitors work to prevent corrosion. Additionally, it is crucial to ensure adequate concrete cover over the rebars during the pouring process. Concrete cover refers to the thickness of the concrete layer between the surface and the rebar. Sufficient concrete cover safeguards the rebars against exposure to moisture, chemicals, and other environmental factors. To achieve the desired concrete cover, steel stirrups or spacers are positioned around the rebars to maintain a specific distance between the rebar and the formwork. This guarantees even distribution of the concrete around the rebars, providing them with the necessary protection. In conclusion, steel rebars are shielded during the concrete pouring process through various methods, including thorough cleaning, the application of protective coatings, the use of corrosion inhibitors, and the maintenance of proper concrete cover. These measures effectively prevent corrosion and ensure the durability and strength of the reinforced concrete structure.

Q: Can steel rebars be used in reinforced masonry construction?: Yes, steel rebars can be used in reinforced masonry construction. In fact, they are commonly used to provide additional strength and stability to masonry structures. The rebars are usually embedded within the masonry walls or columns to reinforce them and enhance their load-bearing capacity.

Q: What is the process of inspecting steel rebars on-site?: The quality and adherence to specifications of steel rebars on-site are ensured through a series of steps in the inspection process. Firstly, a visual inspection is conducted to identify any visible defects or damage, such as rust, cracks, bends, or improper dimensions. Immediate attention is given to any issues found. Next, accurate measurements are taken using tools like calipers or measuring tapes. The length, diameter, and shape of each rebar are compared against the project specifications to ensure they meet the required dimensions. For certain projects, chemical analysis of the steel rebars may be necessary to confirm their composition and strength. Samples are taken from different batches and sent to a lab for testing, with the results determining compliance with standards. Non-Destructive Testing (NDT) techniques are utilized to evaluate the internal integrity of the rebars without causing damage. Ultrasonic testing, magnetic particle inspection, and radiography are employed to detect hidden defects like cracks, voids, or inclusions. If welding is involved, the inspector checks the welds for proper penetration, alignment, and quality. This guarantees the strength and integrity of the joint. Throughout the inspection process, detailed records are maintained. These records include information about the inspections conducted, measurements taken, test results, and identified defects. They serve as evidence of compliance and can be referred to in case of disputes or future reference. Once the inspection is complete, a detailed report is prepared summarizing the findings. This report is shared with the project management team, engineers, and other relevant stakeholders. It highlights any non-compliance, defects, or areas that require attention. In conclusion, the on-site inspection of steel rebars is a comprehensive and systematic approach that ensures their quality, integrity, and compliance with project specifications and industry standards.

Q: How are steel rebars cut and shaped on-site?: On-site, steel rebars are commonly subjected to cutting and shaping using a variety of tools and techniques. The typical process entails the following steps: 1. Measurement: Prior to anything else, the rebars are measured to determine their required length and shape. Measuring tapes, rulers, or other measuring devices are employed for this purpose. 2. Marking: Once the measurements have been taken, the rebars are marked at the appropriate points using chalk or a marker. These markings serve as guidelines to ensure accurate cutting and shaping of the rebars. 3. Cutting: Mechanical or hydraulic cutting tools are then utilized to cut the rebars along the marked lines. Rebar cutters, angle grinders with cutting discs, or portable band saws are some commonly employed tools. These tools are specifically designed to handle the high strength of steel rebars, resulting in clean and precise cuts. 4. Shaping: After the rebars have been cut to the desired lengths, they can be further shaped as required. This shaping process involves bending the rebars to specific angles or curves. Manual rebar benders or electric rebar bending machines are commonly used for this purpose. These tools enable accurate shaping of the rebars, ensuring compliance with the necessary structural design. 5. Tying: Once the rebars have been cut and shaped, they are often bound together using wire or rebar tying machines. This binding process aids in securing the rebars in their designated positions within the concrete structure. It is important to emphasize that the cutting and shaping of rebars on-site necessitate skilled workers who possess the necessary training to handle the tools and observe appropriate safety measures. These workers must also possess a solid understanding of the structural requirements and be capable of interpreting construction drawings to accurately cut and shape the rebars in accordance with the project specifications.

Q: How do steel rebars contribute to the structural integrity of a building?: Steel rebars play a crucial role in enhancing the structural integrity of a building. These reinforcing bars, commonly known as rebars, are typically made from steel and are used to provide strength and stability to concrete structures. They are embedded within the concrete to create a composite material that can withstand various types of forces and loads. Firstly, rebars help to distribute and transfer loads throughout the structure. When a building is subjected to external forces such as wind, earthquakes, or heavy loads, the rebars act as a reinforcement by absorbing and dispersing these forces. By distributing the load over a larger area, they prevent concentrated stress points that could potentially lead to structural failure. Secondly, rebars assist in preventing cracks and fractures in the concrete. Concrete, although highly durable in compression, is weak in tension. Steel rebars, with their high tensile strength, counteract this weakness by resisting the tensile forces that may cause the concrete to crack or fail. By reinforcing the concrete, rebars ensure that the structure remains intact and can withstand various types of stresses. Moreover, rebars increase the overall durability and lifespan of a building. By providing additional strength and stability, they reduce the likelihood of structural damage, ensuring that the building can withstand the test of time. This is particularly important in areas prone to natural disasters, where the strength of a building can be a matter of life and death. Lastly, steel rebars contribute to the overall safety of a building. By reinforcing the structure, they increase its ability to withstand extreme events such as earthquakes or heavy impacts. This not only protects the occupants of the building but also reduces the risk of collateral damage to surrounding structures. In conclusion, steel rebars are essential components in construction that significantly contribute to the structural integrity of a building. Their ability to distribute loads, prevent cracks, increase durability, and enhance safety make them an indispensable element in modern construction practices.

Q: Can steel rebars be used in the construction of tunnels and underground transportation systems?: Yes, steel rebars can be used in the construction of tunnels and underground transportation systems. Rebars provide reinforcement to concrete structures, enhancing their strength and durability. In tunnel and underground construction, where concrete is widely used, steel rebars are commonly employed to withstand the high loads and potential ground movements, ensuring the safety and stability of the infrastructure.

Q: Thread steel generally used for more?: Bars of 6.59 mm in diameter, most of which are rolled into strips; 1040 mm in diameter, usually

Q: Can steel rebars be used in swimming pools and water tanks?: Yes, steel rebars can be used in swimming pools and water tanks. Steel rebars are commonly used as reinforcement in these structures to provide additional strength and stability. The rebars are typically placed within the concrete or masonry walls of the pool or tank during construction. Steel rebars are highly durable and resistant to corrosion, making them an ideal choice for these applications where they will be constantly exposed to water. Additionally, the use of steel rebars helps to prevent cracking and improve the overall structural integrity of the pool or tank.

Q: What is the maximum length of steel rebars available?: The maximum length of steel rebars available can vary depending on the manufacturer and supplier. However, in most cases, the standard maximum length of steel rebars is around 60 feet or 18 meters.

Q: Can steel rebars be used in power plant construction?: Yes, steel rebars can be used in power plant construction. Steel rebars, also known as reinforcing bars, are commonly used in the construction industry to provide strength and support to concrete structures. In power plant construction, steel rebars are often used to reinforce concrete foundations, walls, and structural elements such as columns and beams. The high tensile strength and durability of steel rebars make them ideal for withstanding the heavy loads and extreme conditions typically encountered in power plant environments. Moreover, steel rebars can also be used in the construction of reinforcing cages for underground pipelines and cooling towers, enhancing the overall strength and stability of the power plant infrastructure.

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