Metallic Material Steel Rebar/ Deformed Steel Bar/Iron Rods for Construction Concrete
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 m.t.
- Supply Capability:
- 100000 m.t./month
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Item specifice
Standard:
AISI,JIS,GB,BS,DIN,API,EN,ASTM
Technique:
Hot Rolled
Shape:
Round
Surface Treatment:
Galvanized
Steel Grade:
Q235
Certification:
ISO,SGS,CE
Thickness:
6MM-50MM
Length:
12M
Net Weight:
100TONS
Metallic Material Steel Rebar/ Deformed Steel Bar/Iron Rods for Construction Concrete
Products Description:
Rebar is common known as steel reinforcing bar, usually applied to reinforced concrete and reinforced masonry structures. Formed from mild steel, it is given ribs for better frictional adhesion to the concrete. In other words rebar is an iron rod, a weldable plain reinforcing steel bar, that it can be also used for steel meshes.
1. Diameter: 5.5mm-10mm rounds reinforcing steel bar
10m- 40 rods reinforcing deformed steel bar
2. Length: 6m, 9m, 12m or customized
3. Standard: GB, ASTM, AISI, SAE, DIN, JIS, EN. OEM technology - send detailed technical parameters for accurate quotation.
4. Produce Process: smelt iron - EAF smelt billet - ESR smelt billet - hot rolled or forged to get the steel round bar and plate
5. Heat Treatment: annealing, normalizing, tempering, quenching
6. Surface Treatment: Black
7. Quality Assurance: We accept third party inspection for all orders.
You can ask testing organizations such as SGS, BV, etc. to test our products before shipping.
Theoretical weight and section area:
| 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 |
| 12 | 113.1 | 0.888 | 10.656 |
| 16 | 201.1 | 1.58 | 18.96 |
| 20 | 314.2 | 2.47 | 29.64 |
| 25 | 490.9 | 3.85 | 46.2 |
| 32 | 804.2 | 6.31 | 75.72 |
| 40 | 1257 | 9.87 | 118.44 |
| 50 | 1964 | 15.42 | 185.04 |
Technical Datas:
Grade | Technical data of the original chemical composition (%) | |||||
| C | Mn | Si | S | P | V | |
| ≤0.25 | ≤1.60 | ≤0.80 | ≤0.045 | ≤0.045 | 0.04-0.12 | |
HRB400 | Physical capability | |||||
| Yield Strength (N/cm²) | Tensile Strength (N/cm²) | Elongation (%) | ||||
| ≥400 | ≥570 | ≥14 | ||||
Products Show:
Packages and Shipping:
| Packaging | A seaworthy pachaging or as per customer required |
| Shipping | 10- 30days after we receive 30% deposite |
FAQ:
1. Your advantages?
Professional products inquiry, products knowledge train (for agents), smooth goods delivery, excellent customer solution proposale
2. Test & Certificate?
SGS test is available, customer inspection before shipping is welcome, third party inspection is no problem
3. Payment Terms?
30% TT as deposit and 70% before delivery. Or Irrevocable L/C at sight.
4. Trading Terms?
EXW, FOB, CIF, FFR, CNF
5. After-sale Service
We provide the services and support you need for every step of our cooperation. We're the business partner you can trust. For any problem, please kindly contact us at any your convenient time.
- Q:Can steel rebars be used in tunnels and underground structures?
- Yes, steel rebars can be used in tunnels and underground structures. Rebars are commonly used in construction projects to reinforce concrete structures and provide additional strength and durability. In tunnels and underground structures, where stability and load-bearing capacity are crucial, steel rebars are often incorporated into the concrete walls, floors, and ceilings to enhance their structural integrity. The rebars help to distribute the load and resist potential cracks or deformations caused by the pressure from the surrounding soil or water. Moreover, steel rebars offer resistance against corrosion, making them suitable for underground environments where moisture and other corrosive elements may be present. Overall, steel rebars are an essential component in the construction of tunnels and underground structures, ensuring their safety and longevity.
- Q:What is the difference between mild steel rebars and high-strength steel rebars?
- Mild steel rebars and high-strength steel rebars are two different types of reinforcement bars used in construction. The key difference between these two lies in their composition and mechanical properties. Mild steel rebars, also known as low carbon steel rebars, are made from steel with a relatively low carbon content. Typically, they have a carbon content of about 0.15% to 0.30%. These rebars are commonly used in general construction projects where the concrete structure does not require high tensile strength. Mild steel rebars have a relatively lower yield strength and ultimate tensile strength compared to high-strength steel rebars. On the other hand, high-strength steel rebars, also known as high tensile strength rebars or HSD bars, are made from steel with a higher carbon content, typically ranging from 0.40% to 0.60%. These rebars are specially designed to provide superior strength, durability, and load-bearing capacity. High-strength steel rebars have a significantly higher yield strength and ultimate tensile strength compared to mild steel rebars. This makes them suitable for use in critical structures that require a high load-bearing capacity, such as bridges, high-rise buildings, and industrial structures. Another important difference between mild steel rebars and high-strength steel rebars is their ductility. Mild steel rebars have better ductility, meaning they can undergo more deformation before failing. This property allows mild steel rebars to absorb more energy during an earthquake or other dynamic loads, making them suitable for seismic zones. High-strength steel rebars, on the other hand, have lower ductility but higher stiffness and strength, making them more resistant to extreme loads and providing better structural integrity. It is important to note that while high-strength steel rebars offer superior strength and load-bearing capacity, they are also more expensive compared to mild steel rebars. Therefore, the choice between these two types of rebars depends on the specific requirements of the construction project, including the structural design, load conditions, and budget constraints.
- Q:What are the main uses of threaded steel?
- The main use of rebar is to use beams and columns of important structures as well as bridges. The upper rib is stronger than the round steel when combined with concrete pouring!
- Q:What is the effect of steel rebars on the durability of concrete structures?
- The durability of concrete structures is greatly influenced by the presence of steel rebars. When used as reinforcement within the concrete, rebars bolster the strength and longevity of the structure. While concrete itself is strong when compressed, it lacks tensile strength. However, by incorporating steel rebars, which possess high tensile strength, into the concrete, the overall structural integrity is significantly improved. The inclusion of rebars in concrete serves to mitigate the potential for cracking and structural failure. When exposed to external forces or natural phenomena such as earthquakes or temperature fluctuations, the rebars distribute the load and aid in resisting bending, shearing, and tension forces. This effectively prevents the occurrence of cracks and ensures the concrete structure remains whole and stable. Furthermore, steel rebars also provide protection against corrosion for the concrete. Concrete is susceptible to moisture and chemicals that can penetrate its surface and lead to the corrosion of embedded reinforcement. However, rebars act as a barrier, safeguarding the concrete from moisture and harmful substances that could cause corrosion. This extends the lifespan of the structure and reduces the need for maintenance and repairs. In conclusion, the addition of steel rebars in concrete structures greatly enhances their durability. They offer increased strength, resistance to external forces, and protection against corrosion. When combined, concrete and steel rebars create a robust and long-lasting structure capable of withstanding various environmental and structural challenges.
- Q:How do steel rebars affect the overall cost of maintenance and repairs?
- Steel rebars can have a significant impact on the overall cost of maintenance and repairs in various structures. Firstly, steel rebars are commonly used to reinforce concrete structures such as buildings, bridges, and highways. These rebars provide strength and durability to the concrete, helping to prevent cracks and structural failures. When it comes to maintenance, steel rebars can play a crucial role in reducing the frequency and costs of repairs. By reinforcing the concrete, rebars help to distribute stress and load evenly, minimizing the chances of structural damage. This means that maintenance and repair works will be less frequent, saving both time and money for property owners or infrastructure managers. Moreover, steel rebars also contribute to the longevity of structures. By preventing cracks and other forms of damage, rebars help to extend the lifespan of the concrete. This reduces the need for costly and extensive repairs or even the complete replacement of the structure in the long run. However, it is important to note that steel rebars may also require maintenance themselves. Over time, rebars can corrode due to exposure to moisture, chemicals, or environmental factors. This corrosion can weaken the rebars and compromise the integrity of the structure. Therefore, periodic inspection and maintenance of the rebars are necessary to prevent any potential issues. In conclusion, steel rebars have a significant impact on the overall cost of maintenance and repairs. While they contribute to the strength and durability of structures, reducing the need for frequent repairs, they also require their own maintenance to prevent corrosion. Properly maintained steel rebars can help to extend the lifespan of structures and save costs in the long term.
- Q:What are the common defects observed in steel rebars?
- Steel rebars can exhibit several common defects, including rust and corrosion, cracks and fractures, lack of bond, bent or deformed shapes, dimensional inaccuracies, and inclusions or impurities. When exposed to moisture and oxygen, rebars are susceptible to rust and corrosion, which weaken their structural integrity and compromise the overall strength of concrete structures. Various factors such as excessive bending, improper handling during transportation and installation, or overloading can lead to cracks and fractures in rebars, reducing their load-bearing capacity and affecting the performance of concrete structures. Adequate bond between rebars and the surrounding concrete is crucial for effective load transfer, but poor surface preparation, improper placement, or the presence of contaminants can result in a lack of bond and reduced structural strength. Improper bending techniques, excessive bending, or mishandling can result in rebars with incorrect shapes or deformities, compromising their structural integrity and load-bearing capacity. Steel rebars must conform to specific dimensional tolerances to ensure proper fit and alignment within concrete structures, but manufacturing errors or improper storage and handling can cause dimensional inaccuracies, leading to difficulties during installation and potentially impacting structural performance. Ideally, steel rebars should be free from any inclusions or impurities that can weaken the material, but inadequate quality control during the manufacturing process can result in the presence of foreign materials or impurities, reducing the strength and durability of rebars. To minimize these defects and ensure the long-term structural integrity of concrete structures, it is important to implement proper quality control measures and adhere to industry standards during the manufacturing, transportation, and installation of steel rebars.
- Q:What is the effect of exposure to UV radiation on steel rebars?
- Exposure to UV radiation can cause degradation and weakening of steel rebars. Over time, the radiation can lead to oxidation and corrosion, which can compromise the structural integrity of the rebars and increase the risk of failure in concrete structures.
- Q:Can steel rebars be used in structures with heavy dynamic loads?
- Structures with heavy dynamic loads can indeed make use of steel rebars. In reinforced concrete structures, steel rebars are commonly employed to enhance tensile strength and improve overall structural integrity. Their specific design enables them to withstand heavy loads, including dynamic ones caused by vibrations, earthquakes, or moving vehicles. The remarkable tensile strength of steel rebars allows for effective absorption and distribution of dynamic loads, effectively preventing structural failure or collapse. Moreover, steel rebars exhibit exceptional resistance to fatigue, thereby maintaining their strength and integrity even under repeated loading and unloading cycles. To ensure optimal performance under heavy dynamic loads, engineers take into account various factors, such as the size, shape, and spacing of rebars, as well as the quality of the concrete and the design of the structure itself. By meticulously designing and reinforcing the structure with steel rebars, it becomes possible to create a building that is both safe and durable, capable of withstanding heavy dynamic loads.
- Q:What is the effect of steel rebars on the weight of a structure?
- Steel rebars have a notable impact on the weight of a structure. Typically composed of steel, these reinforcement bars possess a high strength-to-weight ratio. When integrated into a structure, they bestow strength and rigidity without significantly augmenting the overall weight. By reinforcing concrete with steel rebars, the structure becomes more capable of withstanding diverse forces and stresses, including tension, compression, bending, and shearing. This reinforcement empowers the structure to bear heavier loads and elevates its durability and longevity. While steel rebars confer strength to the structure, they do not make a considerable contribution to its weight. Consequently, this is advantageous as it facilitates the construction of lighter and more efficient structures. The reduced weight presents several benefits, such as lower construction expenses, diminished material requirements, decreased transportation costs, and improved seismic performance. Furthermore, the utilization of steel rebars also permits the construction of slimmer and visually pleasing structures. The heightened strength provided by the rebars allows for the employment of thinner concrete sections, leading to sleek designs and more open spaces. In conclusion, the effect of steel rebars on the weight of a structure is minimal. Instead, their principal role lies in enhancing the structural integrity, strength, and durability of the edifice without burdening it with excessive weight.
- Q:What are the different methods of reinforcing concrete structures using steel rebars?
- There are several methods of reinforcing concrete structures using steel rebars. These include placing the rebars in a grid pattern to provide overall strength and support, using stirrups or ties to hold the rebars in place and prevent them from moving, using dowel bars to connect two separate concrete elements, and using anchor bolts or hooks to secure the rebars to the existing structure. Additionally, steel mesh or fiber reinforcement can be used to enhance the overall durability and resilience of the concrete structure.
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Metallic Material Steel Rebar/ Deformed Steel Bar/Iron Rods for Construction Concrete
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 m.t.
- Supply Capability:
- 100000 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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