High quality deformed barhot rolled 10-50mm

High quality deformed barhot rolled 10-50mm System 1

High quality deformed barhot rolled 10-50mm

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t.

Supply Capability:: 100000 m.t./month

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Deformed Bar Details:

Minimum Order Quantity:		Unit:	m.t.	Loading Port:
Supply Ability:		Payment Terms:		Package:	wire rod packing

Product Description:

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

Q: All knowledge about thread steel!: Main origin: steel manufacturers in China are mainly distributed in the north and northeast, North China, Tang Gang, such as Shougang steel, bearing steel, such as the northeast, north of Fushun Steel resistant, etc., these two regions accounted for more than 50% of the total output of thread steel.The difference between round bar and round bar is that the surface has longitudinal ribs and transverse ribs, usually with two longitudinal ribs and transverse ribs uniformly distributed along the length direction. The rebar is a kind of small section steel, mainly used for the skeleton of reinforced concrete construction members. In use, some mechanical strength, bending deformation property and welding performance are required. The raw steel billet for the production of threaded steel is carbon structural steel or low alloy structural steel which is treated by calm melting, and the finished steel bar is delivered in hot rolling forming, normalizing or hot rolling state.

Q: Can steel rebars be used in pre-tensioned concrete structures?: No, steel rebars cannot be used in pre-tensioned concrete structures. Pre-tensioned concrete structures require the use of high-strength, prestressed steel strands that are tensioned before the concrete is cast, providing the necessary strength and structural integrity.

Q: Can steel rebars be used in the construction of residential communities?: Steel rebars are a popular choice in the construction of residential communities. They are extensively utilized in the construction industry to reinforce concrete structures, including residential buildings. By enhancing the load-bearing capacity and resistance to cracks and other structural damages, they provide durability and strength to the concrete. In residential construction, steel rebars are commonly employed to reinforce foundation footings, walls, columns, and beams. This reinforcement ensures the building's structural integrity, leading to a safer and longer-lasting structure. Moreover, steel rebars can be easily customized and shaped according to specific design requirements, allowing for flexibility in construction. All in all, the use of steel rebars in residential communities is widely accepted and a prevalent practice in the construction industry.

Q: What is the role of steel rebars in the construction of highway overpasses?: Steel rebars play a crucial role in the construction of highway overpasses as they provide reinforcement and strength to the concrete structures. Rebars are embedded within the concrete to enhance its tensile strength, making the overpass capable of withstanding heavy loads, vibrations, and external forces. This reinforcement ensures the durability, stability, and structural integrity of the highway overpasses, ensuring the safety of vehicles and pedestrians using them.

Q: Can steel rebars be used in high-rise construction projects?: Yes, steel rebars can definitely be used in high-rise construction projects. In fact, they are widely used in the construction industry for their strength and durability. Steel rebars are typically used in reinforced concrete structures, including high-rise buildings, to provide tensile strength and reinforce the concrete against cracking or failure. The use of steel rebars in high-rise construction projects helps to ensure the structural integrity and stability of the building. Additionally, steel rebars allow for flexibility in design and can be easily customized to meet the specific requirements of each project. Overall, steel rebars are an essential component in high-rise construction and play a crucial role in ensuring the safety and longevity of these structures.

Q: How are steel rebars protected against corrosion in aggressive environments?: Steel rebars are protected against corrosion in aggressive environments through various methods. One common method is the use of protective coatings. These coatings can be applied to the surface of rebars to create a barrier between the steel and the corrosive elements in the environment. Examples of protective coatings include epoxy, zinc, and polyethylene coatings. In addition to coatings, steel rebars can also be protected through cathodic protection. This method involves connecting the rebar to a sacrificial anode, usually made of a more reactive metal such as zinc or magnesium. The anode corrodes instead of the rebar, effectively sacrificing itself to protect the steel from corrosion. Another method of protection is the use of corrosion inhibitors. These inhibitors can be added to the concrete mix or applied directly to the rebars. They work by reducing the corrosive potential of the environment or by forming a protective film on the surface of the rebar, preventing corrosion from occurring. Furthermore, proper design and construction practices can also contribute to the protection of steel rebars against corrosion. Adequate concrete cover can help create a physical barrier between the rebar and the aggressive environment, reducing the exposure of the steel to corrosive elements. Good drainage systems and the use of non-corrosive aggregates can also help minimize the exposure of rebars to moisture and other corrosive substances. Overall, a combination of protective coatings, cathodic protection, corrosion inhibitors, and proper design and construction practices are employed to ensure the protection of steel rebars against corrosion in aggressive environments. These measures help extend the lifespan of structures and maintain their structural integrity.

Q: How are steel rebars classified based on their grades?: Steel rebars are classified based on their grades according to their tensile strength and chemical composition.

Q: What are the guidelines for storing steel rebars on a construction site?: When it comes to storing steel rebars on a construction site, there are several guidelines that should be followed to ensure safety and maintain the quality of the rebars. Here are some key guidelines: 1. Location: Select a designated area on the construction site that is flat, clean, and well-drained for storing the rebars. Avoid areas prone to flooding or excessive moisture. 2. Elevation: Keep the rebars off the ground by using wooden or concrete blocks to prevent direct contact with soil or water. This helps prevent rusting and corrosion. 3. Stacking: Stack the rebars in a stable manner, ensuring that they are aligned vertically and horizontally to maintain their shape and prevent any bending or warping. Use spacers or crates between layers to maintain proper spacing and prevent entanglement. 4. Protection from elements: Cover the rebars with a waterproof tarp or plastic sheet to protect them from rain, snow, or excessive sunlight. This helps prevent rusting and degradation of the rebars. 5. Separation: Store different sizes and types of rebars separately to avoid mixing or confusion during construction. Clearly label and mark each stack to identify the type, size, and grade of the rebars. 6. Accessibility: Ensure easy access to the rebars for construction workers by organizing them in a logical manner. Place smaller rebars on top for easy retrieval and avoid storing heavy rebars on top of lighter ones to prevent damage. 7. Safety precautions: Maintain a safe distance between the rebars and any heavy machinery or equipment to minimize the risk of accidents. Secure the rebars properly to prevent them from falling or causing injury. 8. Regular inspection: Regularly inspect the rebars for any signs of damage, rust, or corrosion. Replace or repair any damaged or compromised rebars to avoid compromising the structural integrity of the construction project. By adhering to these guidelines, construction sites can ensure the proper storage of steel rebars, promoting safety, efficiency, and the longevity of the rebars.

Q: Can steel rebars be used in foundation systems?: Yes, steel rebars can be used in foundation systems. Steel rebars are commonly used as reinforcement in concrete foundations to provide additional strength and stability. They help to distribute the load evenly and prevent cracking or failure of the foundation.

Q: How are steel rebars connected or joined together during construction?: During construction, there are several methods and techniques for connecting steel rebars. One common method is to overlap the rebars and tie them together with steel wire, a process known as rebar tying or wire tying. To ensure a strong and secure connection, the rebars are overlapped at a length typically 40 to 60 times the diameter of the rebars. This overlapping length allows for load transfer and structural integrity. Once properly overlapped, steel wire is tightly wrapped around the intersection point to hold the rebars together. Another method is to use mechanical couplers, which are pre-fabricated devices that join two rebars together. These couplers provide a threaded connection, allowing for a more precise and efficient joining process. The rebars are inserted into the couplers and tightened using a wrench or appropriate tool. In larger construction projects, welding is also used to connect rebars. This involves melting the rebars at the intersection point and fusing them together with heat and pressure. Welding provides a strong and permanent connection but requires skilled labor and safety precautions. In some cases, rebars can be connected using epoxy bonding. This involves applying adhesive to the rebars' surface and pressing them together. The epoxy acts as a bonding agent, creating a durable connection. The method of connecting rebars depends on factors like rebars' size, project requirements, and construction techniques. It's important to follow industry standards and guidelines to ensure proper connection and integrity, as rebars play a critical role in reinforcing concrete structures.

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