Hot Rolled Deformed Steel Rebar System 1

Hot Rolled Deformed Steel Rebar

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Loading Port:: China Main Port

Payment Terms:: TT or LC

Min Order Qty:: 25MT m.t.

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

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Specifications of Hot Rolled Deformed Steel Rebar:

Standard	GB UK USA	HRB335 HRB400 HRB500 G460B, B500A, B500B,B500C GR40, GR60
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
Trade terms	FOB, CFR, CIF
Application	Building, construction
Each bundle weight	2-3MT, or as required
Type	Hot rolled steel rebar
Brand name	DRAGON

Theoretical weight and section area of each diameter as below for your information:

Diameter(mm)	Section area (mm²)	Mass(kg/m)	Weight of 12m (kg)	Pcs/ton
6	28.27	0.222	2.664	375.38
8	50.27	0.395	4.74	210.97
10	78.54	0.617	7.404	135.06
12	113.1	0.888	10.656	93.84
14	153.9	1.21	14.52	68.87
16	201.1	1.58	18.96	52.74
18	254.5	2.00	24	41.67
20	314.2	2.47	29.64	33.74
22	380.1	2.98	35.76	27.96
25	490.9	3.85	46.2	21.65
28	615.8	4.83	57.96	17.25
32	804.2	6.31	75.72	13.21
36	1018	7.99	98.88	10.43
40	1257	9.87	118.44	8.44
50	1964	15.42	185.04	5.40

Deformed Steel Rebar in warehouse

deformed bar in warehouse

deformed bar in stock

Usage and Applications of Hot Rolled Deformed Steel Rebar:

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 Hot Rolled Deformed Steel Rebar:

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.

Delivery Detail: within 45 days after received advanced payment or LC.

Label: to be specified by customer, generally, each bundle has 1-2 labels

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 overall crack resistance of concrete structures?: Steel rebars play a crucial role in enhancing the crack resistance of concrete structures. When embedded within the concrete, rebars provide reinforcement and increase the tensile strength of the structure. Concrete is inherently strong in compression but weak in tension, and steel rebars help overcome this weakness by absorbing the tensile forces that may cause cracks in the concrete. The presence of rebars in concrete structures allows for the redistribution of stress, preventing cracks from propagating and spreading. As the concrete undergoes shrinkage or experiences external loads, the rebars act as a reinforcement grid and help to resist the formation and expansion of cracks. By absorbing and distributing the tensile stresses, rebars ensure that the concrete remains intact and can withstand higher loads without significant cracking. Moreover, steel rebars also contribute to the overall durability of concrete structures. When corrosion of the rebars occurs due to exposure to moisture or other environmental factors, it can lead to an increase in volume, causing internal pressure and potential cracking of the concrete. However, the use of corrosion-resistant rebars, such as epoxy-coated or stainless steel rebars, can significantly mitigate this risk and improve the crack resistance of the structure. In summary, steel rebars enhance the crack resistance of concrete structures by providing reinforcement, increasing tensile strength, redistributing stress, and preventing crack propagation. Their presence ensures that the structure can withstand various types of loads and environmental conditions, improving both the strength and durability of the concrete.

Q:What is the process of bending steel rebars into shapes other than straight bars?: The process of bending steel rebars into shapes other than straight bars typically involves using specialized machinery, such as a rebar bending machine or a hydraulic bender. The rebars are placed in the machine, which applies force to bend them into the desired shape. The operator may follow blueprints or use templates to ensure accurate bending. This process is commonly used in construction and concrete reinforcement projects to create custom shapes that fit specific architectural or structural requirements.

Q:Can steel rebars be used in corrosive environments?: No, steel rebars are not suitable for use in corrosive environments as they are prone to corrosion and can weaken over time.

Q:How are steel rebars bent or shaped to fit specific construction requirements?: Rebar bending, a commonly used technique in construction, involves shaping steel rebars to meet specific requirements. This process utilizes specialized machines that exert force on the rebars, causing them to bend or conform to desired specifications. The method employed for bending steel rebars varies depending on the complexity of the desired shape. For simpler bends, such as 90-degree angles, manual tools like hammers or manual rebar benders can be utilized. These tools allow construction workers to manually apply force and shape the rebars by hand. However, for more intricate shapes or larger quantities of rebars, mechanical rebar benders are preferred. These machines are equipped with bending dies and rollers that provide greater precision and efficiency in bending the steel rebars. Depending on the size and requirements of the construction project, these machines can be operated manually or powered by hydraulics or electricity. In certain cases, Computer Numerical Control (CNC) machines are employed, particularly for projects with complex or customized rebar shapes. These machines are programmed to automatically bend the rebars to desired angles and shapes, ensuring high levels of precision and accuracy in the construction process. It is important to note that rebar bending extends beyond simple bends or shapes. Some architectural or structural requirements call for curved or spiraled rebars. In such instances, specialized bending machines are used to gradually and precisely apply controlled force to the rebars, resulting in smooth curves or spirals. In summary, the process of bending or shaping steel rebars to meet specific construction requirements involves the use of manual tools, mechanical benders, or CNC machines. These methods guarantee precise bending and shaping of the rebars according to design specifications, facilitating efficient and accurate construction of reinforced concrete structures.

Q:How do steel rebars contribute to the durability of concrete?: Steel rebars contribute to the durability of concrete by providing reinforcement and strength to the structure. When embedded in concrete, rebars help to counteract tensile forces, which are the forces that tend to pull apart the concrete. This prevents cracking and enhances the structural integrity of concrete, making it more resistant to various external factors such as heavy loads, seismic activity, and temperature changes. Additionally, rebars help to distribute stress evenly throughout the concrete, reducing the risk of localized damage and increasing the overall longevity of the structure.

Q:What are the maintenance requirements for steel rebars in a structure?: The maintenance requirements for steel rebars in a structure typically involve regular inspections, cleaning, and protection against corrosion. Inspections should be conducted to identify any signs of rust, cracks, or other damage that could compromise the strength of the rebars. Cleaning is essential to remove any dirt, debris, or chemicals that may accumulate on the rebars and accelerate corrosion. Applying protective coatings or coatings that inhibit corrosion can help extend the lifespan of the rebars. Additionally, ensuring proper drainage and preventing moisture buildup in the structure can also contribute to the maintenance of steel rebars.

Q:How do steel rebars affect the overall longevity of a structure?: The overall longevity and durability of a structure can be greatly improved by the incorporation of steel rebars. These reinforced bars, which are made of high-strength steel, are strategically positioned within concrete structures to provide strength, stability, and resistance against external forces. The primary role of steel rebars is to bear the tensile forces that concrete alone cannot handle. While concrete possesses good compressive strength, it lacks tension strength. By integrating steel rebars into the concrete, the structure becomes considerably stronger and capable of withstanding different loads and stresses. The presence of rebars within a structure ensures that the applied load is evenly distributed throughout, preventing localized cracking or failure. This guarantees that the structure can support its own components as well as external loads like wind, earthquakes, or heavy machinery. Steel rebars also play a crucial part in preventing the formation and propagation of cracks within concrete. When exposed to environmental factors like temperature changes or moisture, concrete tends to expand and contract, resulting in crack development. However, the presence of rebars restricts the movement of the concrete, minimizing crack formation and size. This helps preserve the structural integrity of the building, preventing further deterioration and extending its overall lifespan. Furthermore, steel rebars exhibit high resistance to corrosion, which is a common issue in concrete structures exposed to harsh environments. Corrosion of rebars can lead to rust formation, weakening the steel and compromising the structure's strength. Nonetheless, rebars are typically coated with materials such as epoxy or galvanized coatings, acting as a protective barrier against corrosion. This ensures that the rebars remain in optimal condition, maintaining their strength and contributing to the long-term durability of the structure. In conclusion, steel rebars are vital components for enhancing the overall longevity of a structure. They provide additional strength, distribute loads, prevent cracks, and resist corrosion, significantly improving the structural integrity and durability of concrete structures. This guarantees their ability to withstand various forces and maintain functionality over time.

Q:What are the standard sizes for steel rebars?: Steel rebars come in various standard sizes, which depend on both the country and industry standards. However, there are some commonly used sizes for steel rebars, such as #3, #4, #5, #6, #7, #8, #9, #10, #11, #14, and #18. These numbers correspond to the diameter of the rebar in inches. For instance, a #3 rebar has a diameter of 3/8 inch, while a #18 rebar has a diameter of 2 1/4 inches. It is worth noting that different countries may employ their own unique sizing systems. Therefore, it is always essential to refer to the local building codes and standards to obtain accurate information regarding steel rebar sizes.

Q:How do steel rebars affect the thermal conductivity of concrete structures?: Steel rebars have a significant impact on the thermal conductivity of concrete structures. The inclusion of steel rebars in concrete increases the overall thermal conductivity of the structure. This is because steel has a much higher thermal conductivity than concrete. Consequently, heat transfer through the concrete is facilitated by the presence of steel rebars, leading to a higher overall thermal conductivity of the structure.

Q:What are the guidelines for proper anchoring of steel rebars in concrete structures?: For the structural integrity and stability of the construction, it is crucial to properly anchor steel rebars in concrete structures. Here are the guidelines for proper anchoring: 1. Embedment length: To ensure sufficient bond strength, the rebars should be embedded in the concrete for a specific length. The required embedment length depends on factors such as rebar diameter, concrete strength, and load conditions, as specified in the design. 2. Lap length: When joining two rebars, a minimum lap length is necessary for reinforcement continuity. The lap length is determined by the rebar diameter, concrete strength, and structural design requirements. 3. Concrete cover: To safeguard the rebars from corrosion and fire, adequate concrete cover should be provided. The concrete cover is the distance between the outer surface of the rebars and the nearest concrete surface. It depends on factors like environmental conditions, fire resistance requirements, and durability considerations. 4. Spacing and arrangement: The rebars should be appropriately spaced and arranged according to the structural design requirements. The spacing is determined by the structural load and design specifications. Inadequate spacing can compromise the structural strength by providing insufficient reinforcement. 5. Proper positioning: Accurate positioning of rebars is essential, following the design drawings and specifications. They should be placed in the concrete formwork before pouring to achieve the desired structural behavior. Incorrect positioning can result in misalignment or insufficient concrete cover. 6. Mechanical anchorage: Mechanical anchorage devices such as rebar couplers, anchor bolts, or hooks can be utilized to enhance rebar anchoring in concrete structures. These devices provide additional reinforcement and prevent slippage or pull-out of the rebars under load. 7. Quality control: Regular inspection and quality control measures should be implemented to ensure compliance with the anchoring guidelines. This includes checking rebar dimensions and spacing, embedment depth, concrete cover, and ensuring proper installation techniques. It is important to note that these guidelines may vary based on project requirements, local building codes, and design specifications. Therefore, consulting a structural engineer or referring to relevant building codes and standards is essential for specific guidelines applicable to each construction project.

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