HRB400 Deformed Steel Bar

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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 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

Deformed Steel Bar in container

Deformed Steel Bar in factory

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 are steel rebars protected against galvanic corrosion in concrete?: Steel rebars are protected against galvanic corrosion in concrete through the use of various methods, such as epoxy coating, concrete cover, and corrosion inhibitors. These measures create a barrier between the rebar and the concrete, preventing direct contact and minimizing the risk of galvanic corrosion. Additionally, proper concrete mix design and curing techniques can also contribute to reducing the likelihood of corrosion in steel rebars.

Q: What is the role of steel rebars in preventing cracks in concrete structures?: Steel rebars play a crucial role in preventing cracks in concrete structures by providing reinforcement and enhancing the overall strength and durability of the concrete. When concrete is poured, it is initially strong in compression but weak in tension. This means that concrete can withstand forces that push or compress it, but it is prone to cracking when subjected to pulling or tension forces. To counteract this weakness, steel rebars are embedded within the concrete. These rebars act as a framework, distributing and absorbing tensile forces that would otherwise cause cracks in the concrete. When the concrete experiences tension, the rebars bear the load and help redistribute the forces, preventing cracks from forming or spreading. The steel rebars also enhance the structural integrity of the concrete by increasing its resistance to bending, shear, and other types of stress. This reinforcement is particularly important in large concrete structures such as buildings, bridges, and dams, as it helps to ensure their stability and longevity. Additionally, steel rebars also play a critical role in preventing cracks in concrete due to temperature changes and shrinkage. Concrete tends to expand and contract with temperature fluctuations, and this can lead to cracking if not properly controlled. Steel rebars help to control these movements by providing restraint and minimizing the potential for cracks. Overall, the presence of steel rebars in concrete structures significantly improves their ability to resist cracking. They reinforce the concrete, enhance its tensile strength, and help distribute and control forces that may cause cracks. By effectively preventing cracks, steel rebars contribute to the long-term durability and safety of concrete structures.

Q: Are there any environmental benefits to using steel rebars?: There are numerous environmental advantages to utilizing steel rebars in construction. Here are some of the main benefits: 1. Recyclability: Steel rebars possess a high degree of recyclability, enabling them to be reused or repurposed once their lifespan in a structure comes to an end. This diminishes the need for new steel production and the associated energy consumption and greenhouse gas emissions. In fact, steel is one of the most widely recycled materials worldwide, boasting a recycling rate of approximately 90%. 2. Durability: Steel rebars are renowned for their strength and durability, granting structures a longer lifespan. This lessens the necessity for frequent replacements or repairs, resulting in reduced waste generation and the conservation of resources. 3. Energy efficiency: Steel production has become increasingly energy-efficient over time, thanks to advancements in technology and processes. This signifies that the environmental impact of steel production has been decreasing, making it a more sustainable choice in comparison to other materials. 4. Reduced deforestation: Steel rebars provide an alternative to timber reinforcement, which is often acquired through deforestation practices. By opting for steel rebars instead, we can help alleviate the pressure on forests and safeguard their invaluable ecosystem services. 5. Waste reduction: Steel rebars can be prefabricated and cut to precise lengths, minimizing waste on construction sites. Additionally, the scrap generated during the fabrication process can be recycled, further reducing waste generation. In conclusion, the utilization of steel rebars in construction offers a variety of environmental benefits, including recyclability, durability, energy efficiency, reduced deforestation, and waste reduction. These advantages contribute to a more sustainable and eco-friendly construction industry.

Q: Can steel rebars be used in structures with extreme temperature variations?: Steel rebars can generally be used in structures with extreme temperature variations. Steel has a high melting point and is known for its durability and strength, making it suitable for various construction applications. However, it is important to consider a few factors when using steel rebars in such structures. Firstly, steel has a coefficient of thermal expansion, which means it expands and contracts with temperature changes. This expansion and contraction can potentially cause stress and strain on the structure if not properly accounted for. To address this issue, engineers and architects use various design techniques, such as providing expansion joints or allowing for thermal movement, to accommodate the steel's thermal expansion and prevent damage. Secondly, extreme temperature variations can affect the mechanical properties of steel. When exposed to high temperatures, steel can lose its strength and stiffness, which might compromise the structural integrity. Conversely, low temperatures can lead to embrittlement, making the steel more susceptible to cracking or fracturing. Therefore, it is crucial to choose the appropriate grade and quality of steel rebars that are specifically designed to withstand the expected temperature variations. Furthermore, the type of structure and its intended use should be considered. For instance, in structures where extreme temperature variations are anticipated, such as bridges or buildings in regions with hot summers and cold winters, the design should incorporate thermal insulation or other measures to prevent excessive heat transfer or thermal stress accumulation. In conclusion, steel rebars can be used in structures with extreme temperature variations, but proper considerations must be taken. By accounting for thermal expansion, selecting suitable steel grades, and incorporating design techniques to accommodate temperature changes, the structural integrity and performance can be maintained, ensuring the safety and longevity of the construction.

Q: Can steel rebars be used in the construction of schools and universities?: Yes, steel rebars can be used in the construction of schools and universities. Steel rebars are commonly used as reinforcement in concrete structures to provide strength and durability. They help to enhance the structural integrity of the buildings, ensuring they can withstand the loads and stresses imposed on them. Steel rebars are widely used in various construction projects, including schools and universities, to ensure the safety and longevity of the structures.

Q: Are there any specific safety precautions to be taken while handling steel rebars?: Yes, there are several safety precautions that should be taken while handling steel rebars. Here are some key points to consider: 1. Personal Protective Equipment (PPE): Always wear appropriate PPE, including safety goggles or glasses, gloves, and steel-toed boots. This will help protect against eye injuries, cuts, and crushed toes. 2. Lifting Techniques: When lifting rebars, use proper lifting techniques such as bending at the knees, keeping the back straight, and using leg muscles to lift the load. Avoid twisting or jerking motions while lifting to prevent strains or sprains. 3. Proper Storage: Store rebars in an organized and secure manner, ensuring they are not leaning against walls or other structures. This will prevent them from falling and causing injuries. 4. Sharp Edges: Be cautious of the sharp edges on rebars. Always handle them with care to avoid cuts or punctures. It is recommended to wear protective gloves to reduce the risk of hand injuries. 5. Secure Transportation: When transporting rebars, secure them properly to prevent movement or falling off the vehicle. Use appropriate restraints such as ropes or straps to secure the load safely. 6. Electrical Hazards: Be aware of any overhead power lines or live electrical sources near the working area. Maintain a safe distance from them to prevent accidental contact with the rebars, which can conduct electricity. 7. Communication and Awareness: Always communicate with other workers in the vicinity to ensure everyone is aware of the presence of rebars. This will help prevent accidental injuries caused by tripping or colliding with the rebars. By following these safety precautions, you can minimize the risk of accidents or injuries while handling steel rebars. It is also important to undergo proper training and adhere to any specific safety guidelines provided by your employer or industry regulations.

Q: What is the effect of impurities on the corrosion resistance of steel rebars?: Impurities can have a significant effect on the corrosion resistance of steel rebars. Steel rebars are primarily composed of iron and carbon, but impurities such as sulfur, phosphorus, and silicon can be present in varying amounts. Sulfur, for example, is a common impurity found in steel. It can react with water and oxygen to form sulfuric acid, which accelerates the corrosion process. This acid attack can cause the rebars to deteriorate faster, reducing their overall strength and durability. Phosphorus is another impurity that can negatively impact the corrosion resistance of steel rebars. It can promote the formation of localized corrosion sites, known as pitting, which can lead to the development of rust and eventual structural damage. Silicon, although generally considered a beneficial element in steel production, can also have an adverse effect when present in excessive amounts. Higher silicon levels in rebars can lead to the formation of a protective oxide layer, but this layer can sometimes be porous, allowing the penetration of corrosive agents and resulting in corrosion. Overall, the presence of impurities in steel rebars can compromise their corrosion resistance. It is crucial to ensure that the steel used in construction meets the specified standards and contains minimal impurities. Additionally, proper maintenance and regular inspection of rebars are essential to identify and address any potential corrosion issues before they lead to significant damage or structural failures.

Q: Are steel rebars easy to cut and shape?: No, steel rebars are not easy to cut and shape as they are made of strong and durable steel material. They require specialized tools and expertise to cut and shape them accurately.

Q: What are the different types of steel rebars used in marine construction?: In marine construction projects, various types of steel rebars are utilized to withstand the harsh conditions and corrosive environments commonly found in marine structures. 1. Stainless Steel Rebars: These rebars, containing chromium and nickel, are crafted from high-grade stainless steel. They exhibit exceptional resistance to corrosion, making them ideal for marine construction projects where exposure to saltwater and other corrosive elements is anticipated. Though more expensive, stainless steel rebars offer superior durability and longevity. 2. Epoxy-Coated Rebars: Carbon steel rebars are coated with an epoxy layer, acting as a protective barrier against corrosive elements and reducing the risk of rust and corrosion. These rebars are commonly employed in marine construction projects with high saltwater exposure. 3. Galvanized Rebars: By subjecting carbon steel rebars to a hot-dip galvanization process, a layer of zinc is applied, providing excellent corrosion resistance. Galvanized rebars are frequently used in marine construction projects susceptible to seawater or salt spray exposure. 4. Fiberglass Rebars: Composed of high-strength glass fibers embedded in a polymer matrix, fiberglass rebars offer excellent corrosion resistance unaffected by saltwater or other corrosive elements. These rebars are lightweight, non-magnetic, and possess high tensile strength, making them suitable for marine construction projects. 5. Carbon Steel Rebars: Carbon steel rebars are the most commonly used rebars in construction, including marine projects. Although not inherently corrosion-resistant, they can be treated with protective coatings, such as epoxy or galvanization, to enhance their durability and resistance to corrosive environments. It is crucial to consider the specific requirements and conditions of a marine construction project when selecting the appropriate type of steel rebars. Factors such as saltwater exposure, humidity, and anticipated lifespan of the structure should be taken into account to ensure its longevity and safety.

Q: What are the different types of steel rebars used in parking structures?: Parking structures commonly utilize various types of steel rebars for reinforcement and structural integrity. The choice of rebar type depends on factors such as design requirements, load-bearing capacity, and the construction environment. 1. Mild Steel Rebars, also called black rebars, are the most widely used type. They possess a carbon content ranging from 0.15% to 0.30%, ensuring high ductility and weldability. With excellent tensile strength and cost-effectiveness, they are suitable for most parking structure applications. 2. High-Strength Rebars, also known as deformed rebars, are made from carbon steel with additional alloying elements like manganese, silicon, and chromium. This enhances their strength, making them ideal for structures with higher load-bearing requirements or larger spans. They find common use in multi-level parking structures or areas with heavy traffic loads. 3. Epoxy-Coated Rebars involve applying a protective layer of epoxy resin to mild steel rebars. This coating resists corrosion and prevents direct contact with the concrete, minimizing the risk of rust and structural damage. Epoxy-coated rebars are frequently used in parking structures near coastal areas or regions with high humidity, where corrosion is a major concern. 4. Stainless Steel Rebars are highly resistant to corrosion and are employed in parking structures exposed to aggressive environments, such as near the sea or areas with high chloride content. These rebars consist of an alloy of steel and chromium, with additional elements like nickel and molybdenum, ensuring superior corrosion resistance and long-term durability. It is important to consult a structural engineer or construction professional when selecting the appropriate rebar type for a parking structure. They will consider project requirements, local building codes, and environmental conditions to ensure the parking structure's longevity and safety.

EDBAR is a well-known company specialised in production and sales of steel product--billet, dformed bar and round bar.The annual production capacity is 1.5million mtons of round bar and 0.5 million mtons of deformed bars.

1. Manufacturer Overview

Location	Hebei, China
Year Established	2009
Annual Output Value	Above US$ 500 Million
Main Markets	Southeast Asia; East Asia; Middle east
Company Certifications	ISO 9001:2008

2. Manufacturer Certificates

a) Certification Name
Range
Reference
Validity Period

3. Manufacturer Capability

a) Trade Capacity
Nearest Port	Tianjin;
Export Percentage	40%-60%
No.of Employees in Trade Department	21-60 People
Language Spoken:	English; Chinese
b) Factory Information
Factory Size:	Above 850,000 square meters
No. of Production Lines	Above 5
Contract Manufacturing	OEM service offered
Product Price Range	high; average