HRB335 Steel Rebars

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Loading Port:: China Main Port

Payment Terms:: TT or LC

Min Order Qty:: 50MT m.t.

Supply Capability:: 800000TONS m.t./month

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Specifications of HRB335 Steel Rebars:

Standard	GB	HRB335
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
Application	building,construction,road,bridge etc
Technique	Hot rolled
Brand name	DRAGON

Chemical Composition: (Please kindly find our chemistry of our material based on HRB335 as below for your information)

Grade	Technical data of the original chemical composition (%)
	C	Mn	Si	S	P	B
HRB335	≤0.25	≤1.60	≤0.80	≤0.045	≤0.045	>0.0008
	Physical capability
	Yield Strength (N/cm²)		Tensile Strength (N/cm²)		Elongation (%)
	≥335		≥490		≥16

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 HRB335 Steel Rebars:

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 HRB335 Steel Rebars:

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

Steel Rebars in coil

production line of Steel Rebars

production line of Steel Rebar

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: How do steel rebars affect the aesthetics of a construction project?: Steel rebars, an essential element of reinforced concrete structures, have a significant influence on the aesthetics of construction projects. Although their primary purpose is to provide strength and reinforcement to concrete, their presence can have an impact on the overall appearance of the project. The visibility of steel rebars is one way they affect aesthetics. In infrastructure projects like bridges or parking garages, it is common to leave rebars exposed during construction. This exposure can create a distinct industrial or modern look that some find aesthetically pleasing. Architects and designers may intentionally embrace this raw and utilitarian appearance to achieve a specific aesthetic vision. However, in many architectural projects, particularly those involving residential or commercial buildings, the visibility of steel rebars is often undesirable. In such cases, rebars are typically concealed within the structure and covered with finishes such as concrete, plaster, or decorative cladding. This approach enhances the aesthetics of the construction project by shifting the focus from structural elements to the overall design and finishes. Furthermore, the placement and arrangement of rebars can also impact aesthetics. In intricate architectural designs, rebars must be precisely positioned to ensure the desired structural integrity. This presents challenges for designers as they strive to achieve functionality and visual appeal. However, with careful planning and coordination, rebars can be strategically placed to minimize their visual impact while maintaining the desired aesthetics of the project. It is important to note that aesthetics should never compromise the safety and structural integrity of a construction project. While efforts can be made to conceal or minimize the visual impact of steel rebars, proper installation and adherence to engineering standards must always take priority. Ultimately, the aesthetic impact of steel rebars on a construction project depends on the design intent, architectural style, and the balance between functionality and visual appeal.

Q: Can steel rebars be used in reinforced masonry structures?: Reinforced masonry structures can indeed utilize steel rebars to strengthen and provide structural integrity. These rebars, known as reinforcement bars, are commonly employed to fortify masonry elements such as walls, columns, and beams. They are inserted into the masonry units and then embedded in mortar or grout, establishing a robust connection between the steel and the masonry. The utilization of steel rebars in reinforced masonry structures presents various benefits. Firstly, it amplifies the load-bearing capacity of the structure, enabling it to withstand heavier loads and resist deformation. This is particularly crucial in regions susceptible to seismic activity or strong wind loads. Secondly, the steel rebars facilitate the even distribution of stress throughout the structure, averting localized failures and enhancing overall durability. Additionally, employing rebars can enhance the crack resistance of masonry, diminishing the risk of cracks and augmenting structural performance. It is important to note that the design and installation of steel rebars in reinforced masonry structures must adhere to specific codes and standards to ensure adequate safety and performance. The size, spacing, and placement of the rebars are determined based on structural calculations and engineering principles. Sufficient masonry coverage around the rebars is also vital to prevent corrosion and maintain long-term structural integrity. In conclusion, steel rebars are certainly suitable for enhancing the strength, load-bearing capacity, and durability of reinforced masonry structures. Proper design, installation, and adherence to building codes are essential to ensure the successful integration of rebars with masonry.

Q: Can steel rebars be used in the construction of hospitals and healthcare facilities?: Yes, steel rebars can be used in the construction of hospitals and healthcare facilities. Steel rebars provide structural strength and reinforcement to concrete, ensuring the stability and durability of the buildings. They are commonly used in foundations, beams, columns, and other critical structural elements of the construction.

Q: How do steel rebars affect the overall crack width of concrete structures?: The crack width of concrete structures is affected by steel rebars in various ways. Primarily, the reinforcement provided by rebars strengthens the concrete, increasing its resistance to cracking. This reinforcement helps distribute the tensile forces within the concrete, preventing cracks from spreading and widening. When the concrete is subjected to tensile stress, the rebars bear a significant portion of the load, reducing stress on the concrete itself and minimizing crack formation. Furthermore, the use of rebars influences the spacing and size of cracks in concrete structures. Engineers can control the crack width by incorporating rebars at specific intervals and in appropriate sizes. The rebars act as barriers that limit crack width by resisting the tensile forces exerted on the concrete. This is especially important in structures exposed to heavy loads or external forces, as it preserves the structural integrity and durability of the concrete. Moreover, steel rebars impact the propagation of cracks in concrete structures. In the event of cracks, rebars prevent their further extension. They serve as anchors, holding the cracked sections of concrete together and preventing crack spread. This is essential for ensuring overall structural stability and reducing the risk of structural failure. To summarize, steel rebars play a crucial role in influencing the overall crack width of concrete structures. They enhance concrete strength, distribute tensile forces, regulate crack spacing and size, and inhibit crack propagation. By incorporating rebars into concrete structures, engineers can effectively manage and diminish crack formation and severity, ensuring the longevity and safety of the structures.

Q: Are there any limitations to using steel rebars in construction?: Yes, there are some limitations to using steel rebars in construction. One limitation is that steel rebars can corrode when exposed to moisture and oxygen, especially in environments with high humidity or near coastal areas where saltwater can accelerate corrosion. This can weaken the structure over time and may require regular maintenance and inspections to prevent structural failure. Another limitation is that steel rebars have a high thermal conductivity, which means they can conduct heat and cold more easily than other materials. This can result in increased energy transfer and potentially affect the overall energy efficiency of the building. Steel rebars are also heavy and require specialized equipment for handling and installation. This can increase construction costs and may limit their use in certain applications where weight is a concern, such as in high-rise buildings or in areas with weak soil conditions. In addition, steel rebars are susceptible to electromagnetic interference, which can be a concern in buildings with sensitive electronic equipment or in areas with high levels of electromagnetic radiation. Lastly, steel rebars are not environmentally friendly as their production contributes to carbon dioxide emissions. They also have a high embodied energy, meaning a significant amount of energy is required to manufacture and transport them. Overall, while steel rebars are widely used in construction due to their strength and durability, it is important to consider these limitations and assess whether alternative materials or construction methods would be more suitable for specific projects.

Q: What are the guidelines for proper bending of steel rebars on construction sites?: The guidelines for proper bending of steel rebars on construction sites typically include the following: 1. Use the correct tools: Ensure that the bending tools, such as rebar benders or hydraulic machines, are suitable for the specific diameter and grade of the rebar being bent. 2. Follow the bending specifications: Adhere to the bending specifications mentioned in the construction drawings or project plans. These specifications outline the required bending angles, radii, and bend locations for each rebar. 3. Handle rebar with care: Ensure proper handling and storage of rebars to prevent damage or deformations that may affect the bending process. 4. Measure accurately: Take precise measurements before bending to ensure the rebars are cut to the correct length and the bends are made at the designated locations. 5. Use proper bending techniques: Employ appropriate bending techniques, such as using gradual bends rather than sharp angles, to prevent stress concentrations and minimize the risk of rebar failure. 6. Inspect bent rebars: Regularly inspect the bent rebars for any cracks, deformations, or defects that may compromise their structural integrity. Replace any damaged rebars promptly. 7. Follow safety precautions: Always prioritize safety by wearing appropriate protective equipment, such as gloves and safety glasses, and following established safety protocols while bending rebars. It is important to note that guidelines may vary depending on local regulations, project requirements, and specific rebar types. Therefore, it is essential to consult with relevant industry standards, project specifications, and experienced professionals to ensure compliance and achieve proper bending of steel rebars on construction sites.

Q: How do steel rebars impact the constructability and formwork requirements of concrete elements?: Steel rebars have a significant impact on the constructability and formwork requirements of concrete elements. Rebars, also known as reinforcement bars, are widely used in concrete construction to enhance the strength and durability of structural elements. Firstly, the presence of rebars affects the constructability of concrete elements by providing structural integrity and load-bearing capacity. By adding rebars in strategic locations within the concrete, such as beams, columns, and slabs, the overall strength and stability of the structure are significantly improved. This allows for the construction of larger and more complex concrete elements, as the rebars help to distribute the loads more efficiently. Moreover, rebars also impact the formwork requirements of concrete elements. Formwork refers to the temporary structure used to hold the concrete in place until it sets and gains sufficient strength to support itself. The inclusion of rebars necessitates careful consideration when designing the formwork, as the presence of reinforcement bars can increase the weight and volume of the concrete. The size, spacing, and positioning of rebars influence the formwork design and construction process. The formwork must be designed to accommodate the rebars and ensure proper concrete placement and consolidation around them. This may require additional reinforcement in the formwork, such as tie wires or supports, to prevent displacement or movement of the rebars during concrete pouring. Furthermore, rebars also impact the overall timeline and cost of the construction project. The need for additional formwork materials and reinforcement can increase both the material and labor costs. Moreover, the presence of rebars may require additional time for the formwork installation, concrete pouring, and curing process, as the rebars need to be properly positioned and secured within the concrete elements. In conclusion, steel rebars have a significant impact on the constructability and formwork requirements of concrete elements. They enhance the structural integrity of the concrete, allowing for the construction of larger and more complex elements. However, their inclusion also necessitates careful planning and design of the formwork, taking into consideration the size, spacing, and positioning of the rebars. Overall, rebars play a crucial role in ensuring the strength, stability, and longevity of concrete structures.

Q: Can steel rebars be used in underground construction projects?: Yes, steel rebars can be used in underground construction projects. Steel rebars are commonly used for reinforcement in concrete structures, including those built underground. They provide strength and durability to the construction, making them suitable for various underground applications such as tunnels, basements, and underground parking structures.

Q: Can steel rebars be used in structures with high levels of carbonation or acid attack?: Structures with high levels of carbonation or acid attack should avoid using steel rebars. Carbonation occurs when alkaline compounds in concrete react with carbon dioxide from the atmosphere, resulting in a decrease in the concrete's pH level. This can cause the corrosion of steel rebars, as the lower pH levels create an acidic environment that promotes rusting. Similarly, acid attack happens when structures come into contact with acidic substances like industrial chemicals or acid rain. Acidic environments accelerate the corrosion process by further lowering the pH levels of the concrete, increasing the risk of steel rebar deterioration. To prevent these problems, structures exposed to high levels of carbonation or acid attack can use alternative materials such as stainless steel, epoxy-coated rebars, or fiber-reinforced polymer rebars. These materials possess improved corrosion resistance properties, ensuring better durability in challenging environments. It is essential to consider the specific conditions in which the structure will be exposed and seek advice from structural engineers to select the most suitable materials for long-term performance and safety.

Q: What is the process of reinforcing existing concrete structures with steel rebars?: The process of reinforcing existing concrete structures with steel rebars involves several steps. First, a structural assessment is conducted to determine the areas that require reinforcement. Once identified, the concrete surface is prepared by cleaning and removing any loose or deteriorated material. Next, the rebars are positioned and secured to the existing concrete using epoxy adhesive or mechanical anchors. These rebars are strategically placed to distribute and support the additional load. Finally, the rebars are encased in a new layer of concrete called shotcrete or sprayed concrete, which acts as a protective and bonding layer. The result is a strengthened and more durable concrete structure capable of withstanding increased loads and extending its lifespan.

Dragon is specialized in the production and sales of deformed bar and high speed wire rod. The annual production capacity is 1 million mtons. We have got the KS certificate in 2010. And now our product has been sold to many countries and obtained the customers approval.

1. Manufacturer Overview

Location	Hebei, China
Year Established	2002
Annual Output Value	Above US$ 400 Million
Main Markets	South Asia; Middle East;Southeast Aisa
Company Certifications

2. Manufacturer Certificates

a) Certification Name
Range
Reference
Validity Period

3. Manufacturer Capability

a) Trade Capacity
Nearest Port	Tianjin
Export Percentage	60%-80%
No.of Employees in Trade Department	11-20 People
Language Spoken:	English; Chinese
b) Factory Information
Factory Size:	Above 100,000 square meters
No. of Production Lines	2
Contract Manufacturing	OEM service offered
Product Price Range	average