Steel Ribbed Bar For Construction Hot Rolled

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Loading Port:
China main port
Payment Terms:
TT OR LC
Min Order Qty:
25 m.t.
Supply Capability:
10000 m.t./month
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Specifications

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

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

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

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

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:
Fatigue can significantly weaken steel rebars, reducing their strength and structural integrity. It can lead to the development of cracks and fractures, making the rebars more susceptible to failure under applied loads. Therefore, fatigue is a critical factor that should be carefully considered in the design and maintenance of structures using steel rebars.
Q:
The spacing of steel rebars in a concrete structure is determined by several factors that ensure the structural integrity and strength of the concrete. These factors include: 1. Structural Design: The spacing of rebars is influenced by the structural design requirements and specifications of the concrete structure. Engineers consider the loads, stresses, and forces that the structure will experience and calculate the required reinforcement spacing accordingly. 2. Concrete Strength: The strength of the concrete being used in the structure is an essential factor in determining rebar spacing. Higher-strength concrete may require closer spacing of rebars to provide adequate reinforcement and prevent cracking or failure under load. 3. Rebar Diameter: The diameter of the steel rebars also plays a role in determining the spacing. Thicker or larger diameter rebars may require wider spacing, whereas thinner rebars typically require closer spacing to provide the desired reinforcement. 4. Bar Bending and Placing: The ease of bending and placing the rebars during construction is another important factor. The spacing is often determined by practical considerations, such as ensuring proper access for workers and equipment, and facilitating the concrete pouring process. 5. Environmental Factors: Environmental conditions, such as exposure to corrosive substances or extreme weather conditions, can influence the spacing of rebars. Closer spacing may be required in corrosive environments to provide additional protection against rust and deterioration. 6. Building Codes and Regulations: Building codes and regulations set by local authorities or relevant organizations also dictate the minimum requirements for rebar spacing in concrete structures. These codes ensure compliance with safety standards and provide guidelines for construction practices. Overall, the spacing of steel rebars in a concrete structure is a critical aspect of ensuring its strength, durability, and resilience. It is determined by a combination of structural design, concrete strength, rebar diameter, construction practicalities, environmental considerations, and adherence to building codes and regulations.
Q:
Yes, steel rebars can be used in coastal construction. Steel rebars are commonly used in construction projects, including in coastal areas where they provide crucial reinforcement to concrete structures. The steel rebars are typically coated or treated to prevent corrosion from the saltwater and other coastal elements, ensuring their durability and longevity in coastal environments.
Q:
Steel rebars can significantly enhance the fire resistance of concrete structures. The presence of steel rebars within concrete provides reinforcement and prevents the structure from collapsing under high temperatures. The steel rebars act as a heat sink, absorbing and dissipating heat away from the concrete, thereby delaying the onset of structural failure. This improved fire resistance allows concrete structures with steel rebars to maintain their integrity for a longer duration during a fire event, providing valuable time for evacuation and firefighting efforts.
Q:
Corrosion has a detrimental effect on the strength of steel rebars. As corrosion occurs, it causes the steel rebar to rust and deteriorate, leading to a loss of structural integrity. This can significantly weaken the rebars, compromising their ability to support loads and increasing the risk of structural failure. Regular inspection and maintenance are crucial to prevent corrosion and maintain the strength of steel rebars.
Q:
Steel rebars are a viable option for incorporating into the construction of solar power plants. In the construction industry, steel rebars are frequently utilized to reinforce concrete structures. This is particularly relevant for solar power plants, as concrete foundations are typically necessary for installing solar panels and other equipment. By implementing steel rebars in these foundations, the structural integrity and durability of the solar power plant infrastructure can be ensured. Moreover, steel rebars possess corrosion-resistant qualities, which are especially valuable in solar power plant construction due to their exposure to a variety of weather conditions. All in all, steel rebars serve as a suitable material for reinforcing concrete structures in the construction of solar power plants.
Q:
The guidelines for the proper cover thickness of steel rebars vary depending on the specific application and the code or standard being followed. However, in general, the cover thickness for steel rebars is determined based on factors such as the exposure conditions (e.g., moisture, chemicals), the structural requirements (e.g., load-bearing capacity), and the durability considerations. It is recommended to consult the applicable building codes, design standards, or engineering specifications to determine the specific guidelines for cover thickness in a given situation.
Q:
Steel rebars play a crucial role in column construction as they provide reinforcement and strength to the concrete. By adding rebars, the column becomes more resistant to bending and shearing forces, increasing its load-bearing capacity and structural integrity. The rebars help distribute the load evenly throughout the column, preventing cracks and potential collapse. Overall, steel rebars ensure the durability and longevity of the column, making them an essential component in construction.
Q:
Steel rebars in buildings are typically protected against lightning strikes through the installation of a lightning protection system. This system consists of lightning rods or air terminals placed at the highest points of the building, connected to a network of conductors that are bonded to the rebar. This allows for the safe dissipation of lightning currents into the ground, protecting the steel rebars from potential damage caused by lightning strikes.
Q:
Steel rebars can be used in corrosive environments, but certain precautions need to be taken to ensure their longevity and structural integrity. Corrosive environments, such as those with high levels of moisture, saltwater, or chemical exposure, can accelerate the corrosion process of steel rebars, leading to potential structural damage. To mitigate this risk, various strategies can be employed. One common approach is to use corrosion-resistant reinforcing materials, such as stainless steel rebars or epoxy-coated rebars, which provide an additional layer of protection against corrosion. These materials have proven effective in resisting corrosion even in highly corrosive environments. Another approach is to utilize corrosion inhibitors, which are chemicals added to the concrete mix or applied directly to the steel surface. These inhibitors form a protective layer around the rebars, preventing corrosive agents from reaching the steel and slowing down the corrosion process. Additionally, proper concrete cover thickness should be maintained to ensure rebars are adequately protected from exposure to corrosive elements. Adequate concrete cover acts as a barrier, preventing moisture and other corrosive agents from reaching the steel. Regular inspection and maintenance are crucial to identify any signs of corrosion early on. If corrosion is detected, appropriate measures should be taken to repair or replace the affected rebars to maintain the structural integrity of the project. In summary, while steel rebars can be used in corrosive environments, it is essential to consider the specific conditions and employ the appropriate strategies to protect against corrosion. By using corrosion-resistant materials, applying inhibitors, maintaining proper concrete cover, and conducting regular inspections, the lifespan and performance of steel rebars in corrosive environments can be significantly enhanced.

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