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:Are there any disadvantages to using steel rebars?: Yes, there are some disadvantages to using steel rebars. Firstly, steel rebars can corrode over time, especially in environments with high moisture or exposure to chemicals, which can reduce their strength and durability. Additionally, steel rebars are susceptible to thermal expansion and contraction, leading to cracking in concrete structures. Moreover, steel rebars are heavy and can be challenging to handle and transport, making construction processes more labor-intensive.

Q:What is the effect of exposure to UV radiation on steel rebars?: Exposure to UV radiation can cause degradation and damage to steel rebars. The radiation can lead to the breakdown of the protective oxide layer on the surface of the steel, making it more susceptible to corrosion. Additionally, UV radiation can induce surface pitting and cracking, compromising the structural integrity of the rebars. Therefore, it is crucial to protect steel rebars from prolonged exposure to UV radiation to ensure their long-term durability and safety in construction projects.

Q:How do steel rebars contribute to the overall sustainability of a project?: Steel rebars contribute to the overall sustainability of a project in several ways. Firstly, steel rebars are highly durable and have a long lifespan, which means they do not need to be replaced frequently. This reduces the consumption of resources and minimizes the need for new material production, thereby decreasing the environmental impact of the project. Additionally, steel rebars are fully recyclable. At the end of their life cycle, they can be easily collected, melted down, and repurposed into new steel products. This recycling process significantly reduces the demand for raw materials, conserves energy, and decreases the amount of waste going to landfills. Furthermore, steel rebars provide structural strength and enhance the overall safety and resilience of the project. By reinforcing concrete structures, steel rebars help increase their load-bearing capacity and resistance to external forces, such as earthquakes or extreme weather events. This ensures the longevity and stability of the project, reducing the need for repairs or reconstruction in the future. Lastly, the use of steel rebars in construction projects often results in shorter construction time and lower maintenance costs. The ease of handling and installing steel rebars allows for efficient construction processes, leading to reduced energy consumption and lower greenhouse gas emissions. Moreover, the durability and low maintenance requirements of steel rebars minimize the need for ongoing repairs and replacements, resulting in cost savings over the project's lifespan. In conclusion, steel rebars contribute to the overall sustainability of a project by being durable, recyclable, and enhancing structural strength and safety. Their use reduces resource consumption, waste generation, and energy consumption, while also providing long-term cost savings. Incorporating steel rebars in construction projects is a sustainable choice that promotes environmental conservation, economic efficiency, and social resilience.

Q:How do steel rebars enhance the structural integrity of a building?: Steel rebars enhance the structural integrity of a building by providing reinforcement and strength to concrete structures. They prevent cracking, bending, and collapsing under heavy loads, seismic activities, and temperature changes, ensuring the stability and durability of the building.

Q:Are there any special requirements for handling and storing steel rebars on construction sites?: Yes, there are special requirements for handling and storing steel rebars on construction sites. These requirements include ensuring that the rebars are stored in a dry and well-ventilated area to prevent rusting, keeping them away from moisture and chemicals, and stacking them on a flat surface to prevent bending or deformation. Additionally, it is important to handle rebars with proper lifting equipment and to ensure they are not overloaded during transportation.

Q:How do steel rebars affect the shrinkage and creep behavior of concrete?: Steel rebars can significantly affect the shrinkage and creep behavior of concrete by providing reinforcement and reducing the overall cracking potential. The presence of rebars helps to distribute the tensile stress induced during drying shrinkage, thereby minimizing the development of cracks. Additionally, rebars can restrain the movement of concrete, reducing the creep deformation and improving the long-term stability of the structure.

Q:Are there any standards for the spacing of steel rebars in concrete?: Yes, there are standards for the spacing of steel rebars in concrete. The purpose of these standards is to ensure structural integrity and durability of the reinforced concrete. The specific spacing requirements may vary depending on factors such as the type of structure, load conditions, and local building codes. In the United States, the American Concrete Institute (ACI) provides guidelines for rebar spacing in their publication ACI 318, "Building Code Requirements for Structural Concrete." According to ACI 318, the minimum spacing between parallel reinforcing bars should not be less than the maximum bar size or 1.5 times the diameter of the largest coarse aggregate used in the concrete, whichever is larger. For example, if the maximum bar size is 12mm and the largest coarse aggregate size is 20mm, the minimum spacing between the rebars should be 30mm (1.5 times the largest aggregate size). This ensures that there is adequate concrete cover around each rebar to protect it from corrosion and to provide sufficient bond strength. In addition to the minimum spacing, ACI 318 also provides guidelines for the maximum spacing of rebars. These guidelines consider factors such as the size and shape of the concrete member, the type of loading it will experience, and the required strength. The maximum spacing is typically determined to prevent excessive cracking and ensure proper distribution of loads throughout the structure. It is important to note that local building codes and regulations may have additional requirements or variations from the ACI standards. Therefore, it is always advisable to consult the relevant building codes or work with a qualified structural engineer to ensure compliance with the specific spacing requirements for steel rebars in concrete in your area.

Q:How long do steel rebars last in a concrete structure?: Steel rebars can last for several decades in a concrete structure, typically up to 50-100 years or even longer, depending on various factors such as the quality of steel used, environmental conditions, maintenance practices, and exposure to corrosive elements.

Q:How do steel rebars affect the overall flexibility of concrete structures?: Concrete structures are greatly improved by the addition of steel rebars. These rebars increase the tensile strength of concrete, making it more resistant to cracking and deformation when under load. Concrete is strong when compressed, but weak when pulled. By incorporating steel rebars into the concrete, it creates a composite material that combines the strength of concrete with the strength of steel. The rebars act as reinforcement by distributing the load across the structure and preventing the concrete from failing when pulled. This reinforcement helps to limit the formation and spread of cracks, as the rebars bear the stress and prevent the concrete from completely separating. As a result, the presence of rebars significantly enhances the flexibility and ductility of the concrete structure, allowing it to withstand different forces and movements without catastrophic failure. Furthermore, steel rebars also improve the stability of concrete elements. They provide additional strength and support, preventing excessive deflection, bending, or buckling of the structure. This ensures that the structure can withstand external loads and environmental conditions. The increased flexibility and stability contribute to the durability and longevity of the concrete structure, making it more resistant to factors such as seismic activity, temperature changes, and shrinkage. In conclusion, steel rebars are essential in enhancing the overall flexibility of concrete structures. They provide the necessary tensile strength to counteract the weakness of concrete in tension, preventing cracking and deformation. By reinforcing the structure, steel rebars improve its stability, durability, and ability to withstand various forces and movements, ensuring the integrity and longevity of the concrete elements.

Q:How do steel rebars enhance the load-bearing capacity of a structure?: Steel rebars enhance the load-bearing capacity of a structure by providing reinforcement and strengthening to the concrete. They are essentially embedded within the concrete and act as a skeleton or framework, offering additional strength to the structure. The primary function of steel rebars is to resist tension forces that the concrete alone may not be able to withstand. When a structure is subjected to heavy loads or external forces, such as earthquakes or wind, the concrete may crack or fail under the stress. However, the presence of steel rebars helps distribute and absorb these forces, preventing the concrete from breaking apart. The ribbed surface of rebars improves the bond between the steel and the concrete, ensuring effective load transfer between the two materials. This bond allows the rebars to resist tension and compression forces, as well as shear forces, resulting in an overall increase in load-bearing capacity. Furthermore, steel rebars help control and limit the width and depth of cracks that may occur in the concrete. By restraining crack propagation, rebars prevent the cracks from expanding and compromising the structural integrity of the building. This is particularly crucial in earthquake-prone regions, where the ability of a structure to withstand ground movements is of utmost importance. In addition to enhancing the load-bearing capacity, steel rebars also contribute to the durability and longevity of a structure. They have high tensile strength, which means they can withstand significant pulling forces without deforming or breaking. This property ensures that the structure remains stable and secure over time, even under dynamic or extreme loading conditions. Overall, steel rebars play a vital role in enhancing the load-bearing capacity of a structure by reinforcing the concrete, increasing its resistance to tension forces, and controlling crack propagation. Their presence significantly improves the structural integrity, durability, and safety of buildings, making them an essential component in modern construction practices.

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