A615 deformed steel bar for construction

A615 deformed steel bar for construction System 1

A615 deformed steel bar for construction

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t.

Supply Capability:: 10000 m.t./month

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Product Description:

Specifications of HRB500 Deformed Steel Bar:

Standard	GB	HRB500
Diameter	6mm,8mm,10mm,12mm,14mm,16mm,18mm,20mm, 22mm,25mm,28mm,32mm,36mm,40mm,50mm

Length	6M, 9M,12M or as required
Payment term	TT or L/C
Application	mainly used in construction industry to reinforce concrete structures and so on
Quality	First quality, the goods are from Chinese big manufacturers.
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
HRB500	≤0.25	≤1.60	≤0.80	≤0.045	≤0.045		0.08-0.12
	Physical capability
	Yield Strength (N/cm²)		Tensile Strength (N/cm²)			Elongation (%)
	≥500		≥630			≥12

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 HRB500 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 HRB500 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

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 Steel Bar in stock

A615 deformed steel bar for construction

Deformed Steel Bar in testing

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 guidelines for proper tying of steel rebars in concrete structures?: The guidelines for the proper tying of steel rebars in concrete structures are crucial to ensure the structural integrity and durability of the construction. Here are some important guidelines to follow: 1. Rebar Placement: Prior to tying, ensure that the rebars are accurately positioned as per the structural drawings and design specifications. The rebars should be placed at the designated locations, depths, and with proper spacing to provide the required strength and reinforcement. 2. Tying Tools: Use appropriate tools such as pliers or rebar tying machines to ensure proper and secure tying. The tools should be in good condition and suitable for the size and type of rebars being used. 3. Tying Technique: Adopt a consistent and efficient tying technique. Start by securely holding the rebars together at the intersection point. Wrap the tie wire around both rebars multiple times, ensuring tight and firm connections. The tie wire should be properly twisted and cut neatly to avoid any protrusions. 4. Tie Wire Selection: Use high-quality tie wires with sufficient strength to withstand the tension and load requirements. The tie wire should be corrosion-resistant, typically made of galvanized steel or stainless steel, to prevent rusting and deterioration over time. 5. Tying Spacing: Follow the specified tying spacing as per the design requirements. Adequate spacing between ties helps maintain the rebars in their designated positions and prevents any displacement during concrete pouring and subsequent curing. 6. Tying Quantity: Tie rebars at appropriate intervals to ensure sufficient connection and reinforcement. The number of ties required will depend on the size, shape, and length of the rebars used, as well as the structural design specifications. 7. Tying Consistency: Maintain consistency in tying throughout the entire concrete structure. Uneven or inconsistent tying can lead to weak points, reduced reinforcement, and compromised structural integrity. 8. Tying Safety: Always prioritize safety during the tying process. Wear appropriate personal protective equipment (PPE) such as gloves and safety glasses to protect against 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 ensure the proper tying of steel rebars in concrete structures, improving their strength, stability, and longevity.

Q:How do steel rebars resist fire?: Steel rebars resist fire due to their high melting point and low thermal conductivity. Steel has a melting point of around 1370°C, which is higher than typical temperatures reached in building fires. This allows rebars to maintain their structural integrity even in high-temperature environments. Additionally, steel has a low thermal conductivity, meaning it does not readily transfer heat, minimizing the risk of fire spread and structural failure. The combination of these properties makes steel rebars a reliable choice for reinforcing concrete structures in fire-prone areas.

Q:Are there any alternative materials to steel rebars?: Yes, there are several alternative materials to steel rebars. Some commonly used alternatives include fiberglass, carbon fiber, and basalt rebars. These materials offer advantages such as corrosion resistance, high tensile strength, and thermal stability, making them suitable for various construction applications. However, their cost and availability may vary compared to traditional steel rebars.

Q:What is the impact of steel rebars on the constructability of a project?: Steel rebars have a significant impact on the constructability of a project. These reinforcement bars play a crucial role in strengthening and providing structural integrity to concrete structures. By incorporating steel rebars, the overall strength, durability, and resilience of a construction project are greatly improved. One of the key impacts of using steel rebars is the increased load-bearing capacity of the structure. Rebars are designed to withstand tension, which complements the concrete's ability to resist compression. This combination enhances the structural strength of the project, enabling it to withstand heavy loads and external forces, such as earthquakes or high winds. Moreover, steel rebars also enhance the ductility of the concrete structure. Ductility refers to the material's ability to deform without breaking. By adding rebars, the concrete becomes more flexible, allowing it to absorb energy and deform under stress before reaching its breaking point. This is particularly important in areas prone to seismic activities, as it helps prevent sudden and catastrophic failure of the structure. Another aspect of constructability impacted by steel rebars is the overall lifespan of the project. The corrosion resistance properties of rebars, especially when coated or galvanized, significantly extend the lifespan of the structure. This is particularly relevant in environments with high humidity, coastal areas, or regions with harsh weather conditions. By preventing corrosion and maintaining the integrity of the rebars, the entire project's longevity and durability are greatly enhanced. Additionally, steel rebars also facilitate the construction process itself. Their availability in various lengths, shapes, and sizes allows for flexible and efficient design and construction. Contractors can easily cut, bend, and shape rebars to fit specific project requirements, reducing construction time and costs. Moreover, rebars can be prefabricated off-site, minimizing on-site labor and simplifying the construction process. In conclusion, the impact of steel rebars on the constructability of a project is highly significant. They improve the overall strength, load-bearing capacity, ductility, and lifespan of the structure. Additionally, the flexibility and ease of use of steel rebars contribute to efficient construction practices. Therefore, incorporating steel rebars into a project is essential for ensuring its structural integrity and long-term success.

Q:How do steel rebars improve the load-carrying capacity of concrete?: The load-carrying capacity of concrete is enhanced by steel rebars, which strengthen and reinforce the material. By embedding steel rebars within the concrete, tensile strength is provided to an otherwise tension-weak material. Concrete is known for its strength in compression but lacks strength in tension. The steel rebars serve as a support system within the concrete, ensuring a more even distribution of the load and preventing the occurrence of cracks or failure. When a load is applied, the rebars resist the tensile forces and contribute to holding the concrete together, thereby improving its load-carrying and distribution capabilities. Moreover, steel rebars also enhance the ductility of concrete. Ductility refers to the capacity of a material to deform without fracturing. The inclusion of steel rebars in the concrete increases its flexibility and ability to withstand higher levels of stress and strain without experiencing failure. This is particularly valuable in structures that may face earthquakes, as their ability to absorb and dissipate energy is crucial for maintaining overall integrity. In conclusion, steel rebars bolster the load-carrying capacity of concrete by providing tensile strength, promoting even load distribution, preventing cracks, and enhancing overall ductility. This reinforcement and strength enhancement greatly enhance the stability and durability of concrete structures.

Q:How do steel rebars improve the strength and durability of concrete?: Steel rebars improve the strength and durability of concrete in several ways. Firstly, rebars provide reinforcement to the concrete structure, increasing its tensile strength. Concrete is excellent at withstanding compression forces, but it is relatively weak when it comes to tension. By embedding steel rebars within the concrete, the tensile strength of the structure is significantly enhanced. This means that the concrete can resist bending, cracking, and collapsing under heavy loads or external forces. Secondly, steel rebars prevent cracking and shrinkage in the concrete. Concrete tends to shrink as it dries and cures, leading to the development of cracks. However, rebars help to control and restrict this shrinkage by providing additional support and structural integrity. This helps to minimize the occurrence of cracks and ensures that the concrete remains strong and durable over time. Furthermore, steel rebars improve the overall structural stability of the concrete. When concrete is subjected to dynamic loads or seismic activity, it can experience significant deformation or even failure. The presence of rebars helps to distribute the load more evenly throughout the concrete structure, reducing the risk of localized damage or collapse. This enhances the overall stability and safety of the concrete construction. Lastly, steel rebars increase the longevity and durability of concrete structures. The steel used in rebars is highly resistant to corrosion, which is a common issue in concrete exposed to harsh environmental conditions or moisture. By providing a protective layer around the steel, known as passivation, rebars prevent corrosion and maintain the structural integrity of the concrete for an extended period. This ensures that the concrete remains strong, durable, and resistant to degradation over its lifespan. In summary, steel rebars play a crucial role in improving the strength and durability of concrete. They enhance the tensile strength, prevent cracking and shrinkage, enhance structural stability, and increase the longevity of the concrete structure. With the addition of steel rebars, concrete becomes a reliable and long-lasting construction material capable of withstanding various loads and environmental conditions.

Q:What are the guidelines for the proper lap splicing of steel rebars?: The guidelines for the proper lap splicing of steel rebars include ensuring that the rebars are clean and free from rust, dirt, or any other contaminants. The spliced rebars should have appropriate overlapping lengths as specified by the design engineer. The lap splice should be made using mechanical splicing methods or approved splice connectors to ensure proper load transfer. The spliced rebars should be securely positioned and aligned to maintain the required concrete cover. It is essential to follow the specific codes and standards set by the construction industry for lap splicing to ensure the structural integrity and safety of the reinforced concrete structure.

Q:What is the effect of improper storage on the corrosion resistance of steel rebars?: Improper storage of steel rebars can significantly reduce their corrosion resistance. When exposed to moisture, humidity, or extreme environmental conditions, steel rebars can develop rust and corrosion. This compromises their structural integrity and durability, making them more susceptible to failure and compromising the overall strength of the reinforced concrete structure. Therefore, proper storage conditions, such as keeping rebars dry, protected from moisture and contaminants, and stored off the ground, are crucial to maintaining their corrosion resistance and ensuring their long-term performance.

Q:Can steel rebars be used in thin concrete elements?: Yes, steel rebars can be used in thin concrete elements. However, it is important to ensure that the rebars are properly spaced and adequately covered with concrete to provide sufficient strength and durability to the structure. Additionally, the design and placement of rebars should be carried out in accordance with the specific requirements and recommendations of the construction codes and standards.

Q:Do l 8, three grade steel have discs?: Yes, but because of the higher grade of the three screw thread, they are straight bars. It's not necessary to use grade three for 8 mm.

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