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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Quality Product, Order Online Tracking, Timely Delivery
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Specification
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: How are steel rebars protected from moisture during storage?
- Steel rebars are typically protected from moisture during storage by applying a protective coating, such as a layer of corrosion-resistant paint or a water-repellent film. Additionally, rebars may be stored in covered or enclosed areas to shield them from direct exposure to rain or other sources of moisture.
- Q: What are the factors that determine the spacing of steel rebars in a concrete structure?
- The spacing of steel rebars in a concrete structure relies on various factors that guarantee the concrete's structural integrity and strength. These factors encompass: 1. Structural Design: The spacing of rebars is influenced by the structural design requisites and specifications of the concrete structure. Engineers take into account the loads, stresses, and forces that the structure will endure and compute the necessary reinforcement spacing accordingly. 2. Concrete Strength: The concrete's strength used in the structure is a pivotal determinant in establishing rebar spacing. Higher-strength concrete may necessitate closer spacing of rebars to provide ample reinforcement and prevent cracking or failure under load. 3. Rebar Diameter: The diameter of the steel rebars also contributes to determining the spacing. Thicker or larger diameter rebars may require wider spacing, while thinner rebars typically necessitate closer spacing to deliver the desired reinforcement. 4. Bar Bending and Placing: The ease of bending and placing the rebars during construction is another crucial factor. Often, practical considerations dictate the spacing, such as guaranteeing proper access for workers and equipment and facilitating the concrete pouring process. 5. Environmental Factors: Environmental conditions, including exposure to corrosive substances or extreme weather conditions, can impact rebar spacing. Closer spacing may be necessary in corrosive environments to provide additional protection against rust and deterioration. 6. Building Codes and Regulations: Local authorities or relevant organizations establish building codes and regulations that set the minimum requirements for rebar spacing in concrete structures. These codes ensure compliance with safety standards and offer guidelines for construction practices. In conclusion, the spacing of steel rebars in a concrete structure is a crucial aspect in ensuring its strength, durability, and resilience. It relies on a combination of factors, including structural design, concrete strength, rebar diameter, construction practicalities, environmental considerations, and adherence to building codes and regulations.
- Q: Can steel rebars be used in the construction of government buildings?
- Yes, steel rebars can be used in the construction of government buildings. Steel rebars are commonly used in construction due to their high strength and durability, making them suitable for various building types, including government buildings. They provide reinforcement to concrete structures, increasing their load-bearing capacity and structural integrity, which is essential for the safety and longevity of government buildings. Additionally, steel rebars comply with industry standards and building codes, ensuring that the construction meets the necessary regulations and requirements.
- Q: What are the main uses of threaded steel?
- The rebar is a kind of small section steel, mainly used for the skeleton of reinforced concrete construction members. Steel is usually used for reinforced concrete, its role is to increase the friction fringe, the rebar and concrete secant integrally formed together, tic phenomenon can not occur in the role of external force, improve the strength of concrete.
- Q: Is the tie bar used for the longitudinal joint of cement concrete pavement threaded or smooth? Where is the dowel bar for the transverse joint construction?
- Longitudinal tie rod. Longitudinal seam usually has longitudinal contraction joint and longitudinal construction joint two kinds, two kinds of longitudinal joints should be provided with tie rod. The bar shall be designed with the length of the threaded steel to ensure the bond between it and the concrete, and the diameter and spacing of the tie rod shall also be guaranteed. Thus, the tie rod can not provide enough tensile force, and when the concrete faceplate is contracted, the longitudinal joint is pulled apart to form a crack.
- Q: Can steel rebars be used in retaining wall construction?
- Yes, steel rebars can be used in retaining wall construction. Steel rebars are commonly used to reinforce concrete structures, including retaining walls, to enhance their strength and durability. The rebars provide additional tensile strength to the concrete, helping the retaining wall resist lateral pressure from soil or water and maintain its structural integrity.
- Q: What is the purpose of using steel rebars in concrete structures?
- To enhance the overall strength and durability of concrete structures, steel rebars are employed. While concrete excels in compression, it lacks strength in tension. By integrating steel rebars into the concrete, the structure becomes capable of withstanding tensile forces and averting cracking or failure. Typically crafted from carbon steel, steel rebars possess robustness and high tensile strength. They are positioned within the concrete molds prior to pouring, thereby creating a reinforced concrete structure. When exposed to tensile forces, the concrete transfers the load to the steel rebars, which can effectively endure the stretching or pulling forces. This reinforcement aids in the equitable distribution of the load, warding off localized stress points and diminishing the likelihood of structural failure. In addition to providing tensile strength, steel rebars also assist in managing cracks in concrete structures. As concrete contracts and expands due to temperature fluctuations or drying, it becomes susceptible to cracking. The inclusion of steel rebars curbs the width and extent of these cracks, guaranteeing the structural integrity and prolonged lifespan of the concrete. Moreover, steel rebars heighten the resistance of concrete structures to seismic activity or other dynamic forces. The malleability of steel rebars enables them to absorb and dissipate energy during earthquakes or vibrations, thereby diminishing the risk of collapse. In essence, the purpose of incorporating steel rebars into concrete structures is to fortify and reinforce the concrete. This entails providing additional tensile strength, managing cracks, and augmenting the overall durability and resilience of the structure.
- Q: What are the different types of steel rebars used in railway bridges?
- There are several types of steel rebars used in railway bridges, each with their own specific characteristics and applications. Some of the common types include: 1. Carbon Steel Rebars: These are the most commonly used rebars in railway bridges. They are made of carbon steel and provide high tensile strength and excellent durability. Carbon steel rebars can withstand heavy loads and are suitable for various railway bridge applications. 2. Stainless Steel Rebars: Stainless steel rebars are highly resistant to corrosion and are used in railway bridges located in coastal or high humidity areas. They offer excellent long-term performance and are particularly beneficial in preventing rust and deterioration caused by exposure to moisture and salt. 3. Galvanized Steel Rebars: Galvanized steel rebars are coated with a layer of zinc to enhance their corrosion resistance. They are commonly used in railway bridges in areas with aggressive environmental conditions, such as industrial zones or areas prone to chemical exposure. The zinc coating provides an additional protective barrier, increasing the rebars' lifespan. 4. Epoxy-Coated Steel Rebars: Epoxy-coated rebars are coated with a layer of epoxy resin, providing enhanced corrosion protection. They are commonly used in railway bridges exposed to harsh environments, such as bridges located near chemical plants or in heavily polluted areas. The epoxy coating acts as a barrier against corrosion and extends the rebars' service life. 5. Prestressed Steel Rebars: Prestressed steel rebars are designed to withstand high tension loads. They are used in railway bridges that require additional strength and stability, particularly in areas with heavy train traffic or where long spans need to be covered. Prestressed rebars are tensioned before the concrete is poured, allowing them to counteract the tensile forces and prevent cracking or deformation. These are just a few examples of the different types of steel rebars used in railway bridges. The choice of rebar type depends on various factors, including the environmental conditions, load requirements, and design specifications of the bridge. It is essential to select the appropriate type of rebar to ensure the structural integrity and longevity of railway bridges.
- Q: Are steel rebars resistant to termites and other pests?
- No, steel rebars are not susceptible to termite and other pest infestations as they are made of inorganic material.
- Q: What are the main properties of steel rebars?
- Steel rebars, also referred to as reinforcing bars, play a vital role in reinforced concrete structures due to their numerous advantageous characteristics. Firstly, steel rebars possess a high tensile strength, which enables them to withstand substantial pulling forces and effectively reinforce concrete to prevent cracking and structural failure. Secondly, steel rebars exhibit exceptional ductility, meaning they can deform under stress without fracturing. This flexibility allows them to absorb energy during seismic events or extreme loads, enhancing the overall performance and resilience of the reinforced concrete. Moreover, steel rebars are manufactured with a protective layer, such as epoxy or galvanized coating, to ensure corrosion resistance. This property is crucial as exposure to moisture, chloride ions, and other corrosive elements can significantly weaken the rebars and compromise the structural integrity. In addition, steel rebars can be easily welded together, facilitating efficient and effective construction. This feature enables the rebars to be connected seamlessly, forming a continuous and robust reinforcement network that enhances the overall strength and stability of the concrete structure. Furthermore, steel rebars possess thermal compatibility with concrete, meaning they have similar expansion and contraction properties. This characteristic minimizes the risk of cracking or structural damage caused by temperature changes, ensuring the long-term durability and stability of reinforced concrete structures. Lastly, steel rebars are widely available and relatively cost-effective compared to alternative reinforcing materials. This affordability, combined with their exceptional mechanical properties, makes them a popular choice for structural reinforcement in various construction projects. In conclusion, steel rebars offer high tensile strength, ductility, corrosion resistance, weldability, thermal compatibility, and cost-effectiveness. These properties are indispensable for providing structural strength and durability to reinforced concrete structures.
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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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