Hot Rolled Steel Rebar Deformed Bar Made In China

Hot Rolled Steel Rebar Deformed Bar Made In China System 1

Hot Rolled Steel Rebar Deformed Bar Made In China System 2

Hot Rolled Steel Rebar Deformed Bar Made In China System 3

Hot Rolled Steel Rebar Deformed Bar Made In China

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 2000 m.t.

Supply Capability:: 30000 m.t./month

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Product Description:

Specifications of Deformed Steel Bar:

Standard	GB	HRB335, HRB400, HRB500
	UK	G460B, B500A, B500B,B500C
	USA	GR40, GR60
Diameter	6mm,8mm,10mm,12mm,14mm,16mm,18mm,20mm, 22mm,25mm,28mm,32mm,36mm,40mm,50mm
Diameter
Length	6M, 9M,12M or as required
Place of origin	Hebei, China mainland
Application	building,construction,road,bridge etc
Brand name	DRAGON

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

Diameter(mm)	Section area (mm²)	Mass(kg/m)
6	28.27	0.222
8	50.27	0.395
10	78.54	0.617
12	113.1	0.888
14	153.9	1.21
16	201.1	1.58
18	254.5	2.00
20	314.2	2.47
22	380.1	2.98
25	490.9	3.85
28	615.8	4.83
32	804.2	6.31
36	1018	7.99
40	1257	9.87
50	1964	15.42

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

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

Hot Rolled Steel Rebar Deformed Bar Made In China

Q: Can steel rebars be used in the construction of underground parking structures?: Steel rebars are an effective choice for constructing underground parking structures. They are commonly used in reinforced concrete structures, such as underground parking, to reinforce and provide tensile strength. The rebars are strategically placed within the concrete to enhance its load-bearing capacity, durability, and resistance to cracking or deformation. Steel rebars are ideal for underground parking structures that require strong structural support, thanks to their high strength and ability to withstand heavy loads. To further enhance their resistance to corrosion, protective coatings or stainless steel rebars can be applied, which is particularly important in underground environments with moisture and exposure to chemicals. Ultimately, the use of steel rebars is a standard practice in constructing underground parking structures to ensure long-lasting structural integrity.

Q: How do steel rebars affect the overall cost-effectiveness of a structure?: Steel rebars play a crucial role in enhancing the overall cost-effectiveness of a structure. These reinforcement bars are widely used in construction projects to provide strength, durability, and stability to concrete structures. By incorporating steel rebars, the lifespan of a structure is significantly increased, reducing the need for frequent repairs and maintenance, thereby lowering long-term costs. One of the key benefits of using steel rebars is their ability to reinforce concrete, making it capable of withstanding heavy loads and forces. This reinforcement prevents cracks and structural failures, ensuring the longevity of the structure. As a result, the need for costly repairs and replacements is minimized, resulting in cost savings over the lifespan of the structure. Moreover, steel rebars enhance the overall structural integrity of a building, reducing the risk of damage caused by natural disasters such as earthquakes and high winds. This increased resilience not only saves lives but also reduces the financial burden of rebuilding or repairing a damaged structure. In addition to their strength and durability, steel rebars provide cost-effectiveness during construction itself. These bars can be prefabricated off-site, allowing for efficient and streamlined construction processes. This reduces labor costs, accelerates construction timelines, and minimizes material wastage, leading to overall cost savings. Furthermore, steel rebars can be recycled, making them an environmentally friendly choice. The recycling process not only reduces the demand for raw materials but also lowers production costs, contributing to the cost-effectiveness of a structure. In summary, steel rebars enhance the cost-effectiveness of a structure by increasing its longevity, reducing maintenance and repair costs, improving resilience to natural disasters, optimizing construction processes, and promoting environmental sustainability. By incorporating steel rebars into construction projects, developers and owners can maximize the return on investment while ensuring the safety and longevity of the structure.

Q: Can steel rebars be used in road or highway construction?: Yes, steel rebars can be used in road or highway construction. They are commonly used to reinforce and strengthen concrete structures, including roads and highways, to enhance their durability and load-bearing capacity. Steel rebars provide stability and prevent cracking or breaking under heavy traffic loads, making them an essential component in road and highway construction.

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. It is important to ensure that rebars are stored in a designated area that is clean, dry, and protected from moisture, dirt, and other contaminants. They should be stored in a horizontal position and stacked in a way that prevents damage or deformation. Additionally, rebars should be handled with care to avoid any bending, twisting, or dropping, as these can compromise their structural integrity. It is crucial to follow safety guidelines and use appropriate lifting and handling equipment to prevent accidents or injuries during the transportation and installation of rebars.

Q: How do steel rebars affect the shrinkage and creep of concrete?: Concrete's shrinkage and creep behavior can be significantly influenced by steel rebars. Shrinkage refers to the concrete's volume reduction caused by moisture loss during drying, while creep refers to its time-dependent deformation under sustained load. The inclusion of steel rebars helps mitigate concrete shrinkage. As the concrete shrinks, the rigid rebars resist this reduction and provide restraint. This restraint minimizes volume changes and reduces cracking caused by shrinkage. Moreover, the tensile strength of rebars allows them to distribute stress and prevent localized cracking, further minimizing the impact of shrinkage on overall concrete performance. Regarding creep, steel rebars can increase concrete's deformation. This is because the rebars introduce additional stress and strain, leading to greater creep deflections. However, compared to factors like mix design, water-cement ratio, and curing conditions, the effect of steel rebars on creep is generally considered minor. It's important to note that proper reinforcement layout design and detailing can minimize the impact of steel rebars on shrinkage and creep. Adequate spacing, rebars cover, and reinforcement ratios optimize both concrete and rebars' performance. Additionally, the use of supplementary cementitious materials like fly ash or silica fume can reduce shrinkage and mitigate creep's impact. In summary, steel rebars are crucial in minimizing concrete's shrinkage-related issues through restraint and stress distribution. Though they may increase creep deformation, their impact is generally minor compared to other factors. Proper reinforcement design and detailing optimize concrete and steel rebars' performance in terms of shrinkage and creep.

Q: What are the common mistakes to avoid when installing steel rebars?: To ensure a successful and safe installation of steel rebars, it is important to avoid several common mistakes: 1. Placing the rebars incorrectly is a frequent error that must be avoided. Accurate placement should be carried out in accordance with the engineering or construction drawings. Any deviation from the specified location can compromise the structural integrity of the reinforced concrete. 2. Insufficient concrete cover over the rebars is another mistake to avoid. The cover acts as a protective layer, preventing corrosion and providing fire resistance. Inadequate cover can lead to premature deterioration and structural failure over time. 3. Proper support for the rebars is crucial during the concrete pouring process. Insufficient support can cause sagging or movement of the rebars, resulting in an uneven distribution of steel reinforcement and compromising the structural strength of the concrete. 4. Correct alignment and spacing of the rebars according to design specifications is essential. Improper alignment can lead to congestion, difficulties in pouring concrete, and compromised bond strength between the rebar and concrete. Similarly, incorrect spacing can result in insufficient reinforcement, reducing the overall strength of the structure. 5. Thoroughly cleaning the rebars before installation is necessary to remove rust, dirt, and other contaminants. Failure to do so can lead to poor bond strength and an increased risk of corrosion, weakening the structure over time. 6. Adequate tying of the rebars using the appropriate wire or connectors is essential to maintain alignment and ensure the structural integrity of the reinforced concrete. Neglecting proper tying can result in shifting or movement during the concrete pouring process, compromising the structural strength. 7. Lack of supervision and quality control during the installation process is a common mistake. Experienced personnel should oversee the installation to ensure compliance with design specifications, proper installation techniques, and adherence to safety guidelines. By avoiding these common mistakes, the installation of steel rebars can be carried out effectively, resulting in a strong, durable, and safe reinforced concrete structure.

Q: What are the different types of steel rebars used in precast concrete constructions?: There are several types of steel rebars commonly used in precast concrete constructions, including plain round bars, deformed bars, epoxy-coated bars, stainless steel bars, and galvanized bars. Each type offers specific properties and advantages depending on the project requirements and environmental conditions.

Q: Are steel rebars resistant to chemicals?: Yes, steel rebars are generally resistant to chemicals. Steel is known for its high strength and durability, and it can withstand exposure to various chemicals without significant deterioration. However, the level of resistance may vary depending on the specific chemical and the concentration or duration of exposure. In general, steel rebars are highly resistant to common chemicals found in construction materials and environments, such as water, concrete additives, and standard cleaning agents. They are also resistant to many acids, alkalis, and organic solvents. However, some aggressive chemicals like strong acids or oxidizing agents may cause corrosion or damage to steel rebars over time. Therefore, it is important to consider the specific chemical environment when selecting and using steel rebars, and take appropriate measures to protect them if necessary, such as using protective coatings or corrosion inhibitors.

Q: Can steel rebars be used in the construction of pedestrian bridges and walkways?: Yes, steel rebars can be used in the construction of pedestrian bridges and walkways. Steel rebars provide strength, durability, and flexibility, making them an ideal choice for reinforcing concrete structures. They enhance the load-bearing capacity of the bridge or walkway, ensuring its safety and longevity.

Q: How do steel rebars resist abrasion in concrete structures?: Steel rebars resist abrasion in concrete structures due to their high tensile strength and durability. When embedded within the concrete, the rebars act as reinforcement, providing additional strength to the structure. During the setting and hardening process of concrete, rebars are firmly embedded within the mixture, creating a strong bond. This bond ensures that the rebars remain securely in place, even when subjected to external forces such as abrasion. The surface of steel rebars is typically treated to enhance their resistance to abrasion. This can include processes such as hot-dip galvanizing or epoxy coating. These surface treatments create a protective layer that shields the rebars from the abrasive effects of the surrounding concrete and other external factors. Furthermore, steel rebars are designed with ridges or deformations along their surface. These ridges increase the surface area of the rebars, promoting a stronger bond with the concrete. This increased bond helps to distribute external forces, such as abrasion, more evenly throughout the structure, reducing the risk of localized damage. In summary, the high tensile strength, durability, and surface treatments of steel rebars, along with their ability to form a strong bond with concrete, enable them to resist abrasion in concrete structures.

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