STEEL REBAR HIGH QUALITY DEFORMED BAR HRB400 HRB500

STEEL REBAR HIGH QUALITY DEFORMED BAR HRB400 HRB500 System 1

STEEL REBAR HIGH QUALITY DEFORMED BAR HRB400 HRB500

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 200 m.t.

Supply Capability:: 50000 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 thermal stability of a structure?: Steel rebars can significantly improve the overall thermal stability of a structure. Due to their high thermal conductivity, steel rebars help in dissipating heat more efficiently and evenly throughout the structure. This prevents the formation of localized hot spots and reduces the risk of thermal expansion, which can cause structural deformations and cracks. Additionally, steel rebars enhance the structural integrity of a building during fire incidents by providing necessary reinforcement and preventing sudden collapses.

Q: What is the importance of proper anchoring of steel rebars in concrete?: The proper anchoring of steel rebars in concrete is crucial for ensuring the structural integrity and stability of the concrete structure. When rebars are not properly anchored, they may become loose or detached from the concrete, leading to potential structural failure, especially under heavy loads or seismic activity. Proper anchoring helps to distribute stress and load evenly throughout the concrete, preventing cracks, displacement, and collapse. It also enhances the bond between the steel and concrete, improving the overall strength and durability of the structure.

Q: What are the safety considerations when handling steel rebars?: When handling steel rebars, it is important to observe several safety considerations. Firstly, workers should always wear appropriate personal protective equipment (PPE) such as gloves, safety glasses, and sturdy footwear to protect against potential injuries. Secondly, it is crucial to ensure proper lifting techniques and use mechanical aids when necessary to avoid strain on the body. Additionally, workers should be cautious of the sharp edges and protruding ends of the rebars to prevent cuts and puncture wounds. Regular inspection of the rebars for defects, such as rust or bending, is also essential for maintaining a safe work environment. Lastly, proper storage and stacking procedures should be followed to prevent rebars from falling, causing injuries to workers or damage to property.

Q: How do steel rebars impact the overall energy efficiency of a structure?: Steel rebars can have both positive and negative impacts on the overall energy efficiency of a structure. On one hand, steel rebars can enhance the structural integrity and durability of the building, leading to a longer lifespan and reduced energy consumption for repairs and maintenance. Additionally, steel rebars can be used to reinforce concrete, which provides better insulation and thermal efficiency. On the other hand, the production of steel rebars requires significant energy and emits greenhouse gases, contributing to the carbon footprint of the structure. Therefore, the overall energy efficiency of a structure depends on various factors, including the design, construction techniques, and the use of sustainable materials alongside steel rebars.

Q: How do steel rebars prevent cracking in concrete?: The reinforcement provided by steel rebars is essential in preventing cracking in concrete. By increasing the overall strength and durability of the structure, steel rebars counteract the tensile forces that cause concrete to crack. To create a reinforcing mesh or framework, high-strength steel rebars are strategically placed within the concrete. This mesh acts as a skeleton, effectively absorbing and distributing the tensile forces throughout the structure. As a result, cracks are prevented from forming. When external loads, such as heavy weights or seismic forces, are applied to the concrete, the rebars bear the tensile stress instead of the concrete itself. This is possible because steel rebars have a much higher tensile strength compared to concrete. By distributing stress more evenly, the rebars minimize crack formation and help maintain the concrete's structural integrity. Additionally, steel rebars improve the bond between the concrete and the reinforcement, further preventing cracks. While concrete has excellent compressive strength, its tensile strength is relatively low. The inclusion of rebars increases the overall tensile strength of the concrete, reducing the likelihood of cracking under tension. The bond between the rebars and the concrete creates a composite material that can effectively withstand both compressive and tensile forces. In summary, steel rebars play a crucial role in preventing cracking in concrete. They provide reinforcement, absorb tensile forces, and enhance the overall strength and durability of the structure. By acting as a skeleton within the concrete and distributing stress, they prevent the formation of cracks and ensure the long-lasting stability of the construction.

Q: What is the process of connecting steel rebars to structural members?: To establish a secure and dependable connection, several steps are involved in connecting steel rebars to structural members. To begin with, the structural member's design specifications necessitate the precise positioning of the long, ridged or deformed steel bars called rebars. This is typically accomplished by using spacers or chairs to maintain the appropriate spacing between the rebars and the surrounding formwork. Following that, the rebars are connected to the structural member through various means. A common method is lap splicing, where the rebars overlap for a designated distance and are then tied together using wire or mechanical connectors. The length of the overlap is determined by engineering calculations to ensure adequate strength and load transfer. Another approach involves the use of pre-fabricated mechanical couplers, which provide a dependable connection between the rebars. These couplers are designed to securely grip the rebars and effectively transfer the load. They offer advantages such as quicker installation, reduced labor costs, and enhanced structural integrity. In addition to splicing, the rebars may also need to be anchored or hooked into the structural member. Anchoring involves extending the rebar's length beyond the connection point and bending it back into the concrete to create a hook shape. This provides additional resistance against pull-out forces. Throughout the process, it is crucial to ensure that the rebars are clean, free from rust, and properly aligned. Any contaminants or misalignments can weaken the connection and compromise the structural integrity. Therefore, comprehensive inspection and quality control measures are essential to ensure a successful connection. Overall, the process of connecting steel rebars to structural members requires meticulous planning, precise positioning, proper splicing or coupling, and thorough inspection. By following these steps, a robust and long-lasting connection can be achieved, guaranteeing the safety and stability of the structure.

Q: What are the guidelines for proper tying of steel rebars in concrete structures?: To ensure the structural integrity and durability of concrete structures, it is crucial to adhere to guidelines for the proper tying of steel rebars. Here are some important guidelines to consider: 1. Rebar Placement: Before tying, accurately position the rebars according to the structural drawings and design specifications. Place them at the designated locations and depths, ensuring proper spacing to provide the necessary strength and reinforcement. 2. Tying Tools: Utilize suitable tools like pliers or rebar tying machines for secure and proper tying. Ensure that the tools are in good condition and appropriate for the size and type of rebars being used. 3. Tying Technique: Employ a consistent and efficient tying technique. Begin by securely holding the rebars together at the intersection point. Wrap the tie wire around both rebars multiple times, ensuring tight and firm connections. Properly twist and neatly cut the tie wire to avoid any protrusions. 4. Tie Wire Selection: Use high-quality tie wires with sufficient strength to withstand tension and load requirements. Opt for corrosion-resistant materials such as galvanized steel or stainless steel to prevent rusting and deterioration over time. 5. Tying Spacing: Adhere to the specified tying spacing as per the design requirements. Adequate spacing between ties helps maintain rebars in their designated positions, preventing displacement during concrete pouring and subsequent curing. 6. Tying Quantity: Tie rebars at suitable intervals to ensure ample connection and reinforcement. The number of ties needed depends on the size, shape, length of rebars, and structural design specifications. 7. Tying Consistency: Maintain consistency in tying throughout the entire concrete structure. Uneven or inconsistent tying can result in weak points, reduced reinforcement, and compromised structural integrity. 8. Tying Safety: Prioritize safety during the tying process. Wear appropriate personal protective equipment (PPE) like gloves and safety glasses to prevent injuries. Take precautions to avoid tripping hazards and ensure a safe working environment. 9. Inspection and Quality Control: Regularly inspect the tied rebars to ensure compliance with design specifications and quality standards. Conduct visual inspections and perform pull tests to assess the strength and effectiveness of the ties. 10. Compliance with Codes and Standards: Adhere to local building codes, industry standards, and engineering guidelines specific to your region. These codes provide essential requirements for rebar tying, ensuring the durability and safety of the concrete structure. By following these guidelines, construction professionals can enhance the strength, stability, and longevity of concrete structures through proper tying of steel rebars.

Q: Can steel rebars be used in water treatment facilities?: Yes, steel rebars can be used in water treatment facilities. Steel rebars, or reinforcing bars, are commonly used in construction projects to strengthen concrete structures. In water treatment facilities, where concrete is used for various structures such as tanks, basins, and pipelines, steel rebars are often incorporated to provide added strength and durability. Water treatment facilities involve the treatment of water to make it safe for consumption or other purposes. Concrete is a preferred material in these facilities due to its ability to withstand the harsh conditions of water treatment processes, such as exposure to chemicals, high temperatures, and pressure. Steel rebars are essential in reinforcing the concrete structures to ensure they can withstand these demanding conditions. The corrosion resistance of steel rebars is a critical factor to consider when using them in water treatment facilities. Since water treatment facilities often involve the use of chemicals and exposure to moisture, it is important to choose rebars that have appropriate corrosion protection. This can be achieved by using stainless steel rebars or by applying protective coatings to the rebars. It is also worth noting that proper design, construction, and maintenance practices are essential in ensuring the long-term performance of steel rebars in water treatment facilities. Adequate cover thickness, concrete quality, and proper installation techniques are important considerations to prevent corrosion and ensure the rebars provide the desired structural integrity. In conclusion, steel rebars can be effectively used in water treatment facilities to reinforce concrete structures and provide the necessary strength and durability. However, it is important to choose corrosion-resistant rebars and adhere to proper design and construction practices to ensure their long-term performance in these facilities.

Q: Can steel rebars be used in aggressive chemical environments?: To some extent, aggressive chemical environments can tolerate the use of steel rebars. However, the severity and characteristics of the chemicals present may compromise their performance. In most construction applications, steel rebars are generally resistant to mild to moderate chemical exposures. Nonetheless, in highly aggressive chemical environments with prolonged and intense exposure to corrosive substances like acids, alkalis, or salts, steel rebars may corrode and deteriorate over time. In such instances, alternative materials such as stainless steel rebars or epoxy-coated rebars may be more suitable, as they offer enhanced resistance to corrosion in aggressive chemical environments. It is crucial to consider the specific conditions of the chemical environment and seek guidance from experts or structural engineers to determine the most appropriate rebar material for the given situation. Regular inspections and maintenance are also necessary to monitor the condition of steel rebars and ensure their durability in aggressive chemical environments.

Q: Are steel rebars suitable for use in high-rise buildings?: Yes, steel rebars are suitable for use in high-rise buildings. Steel rebars, also known as reinforcing bars, are commonly used in the construction industry to provide strength and stability to concrete structures. High-rise buildings require a strong and durable structural system to withstand various loads and forces such as wind, earthquakes, and the weight of the building itself. Steel rebars offer excellent tensile strength and ductility, making them ideal for reinforcing concrete in high-rise structures. One of the key advantages of steel rebars is their ability to resist tensile forces. Concrete is strong in compression but weak in tension, and steel rebars help counteract this weakness by providing the necessary tensile strength. This is crucial in high-rise buildings where the weight of the structure can cause tension on the concrete elements. By reinforcing the concrete with steel rebars, the overall structural integrity of the building is enhanced, ensuring its safety and stability. Additionally, steel rebars have superior ductility, which is the ability to deform under stress without fracturing. This property is essential in high-rise buildings as they are subject to dynamic loads and potential movements caused by factors like wind or seismic activity. Steel rebars can absorb and distribute these forces, reducing the risk of structural failure or collapse. Furthermore, steel rebars are readily available and cost-effective compared to alternative materials such as carbon fiber or fiberglass. They can be easily fabricated and installed in various shapes and sizes to fit the specific design requirements of high-rise buildings. However, it is important to note that the suitability of steel rebars in high-rise buildings also depends on proper design, installation, and regular maintenance. It is crucial to follow the relevant building codes and standards, ensure proper corrosion protection, and conduct regular inspections to detect any potential issues. By adhering to these practices, steel rebars can provide a reliable and durable reinforcement solution for high-rise buildings.

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