Steel Rebar, Deformed Steel Bar, Iron Rods For Construction/Concrete Material
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 30 m.t.
- Supply Capability:
- 40000 m.t./month
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Product Description:
OKorder is offering Steel Rebar, Deformed Steel Bar, Iron Rods For Construction/Concrete Material at great prices with worldwide shipping. Our supplier is a world-class manufacturer of steel, with our products utilized the world over. OKorder annually supplies products to European, North American and Asian markets. We provide quotations within 24 hours of receiving an inquiry and guarantee competitive prices.
Product Applications:
Steel Rebar, Deformed Steel Bar, Iron Rods For Construction/Concrete Material are ideal for structural applications and are widely used in the construction of buildings and bridges, and the manufacturing, petrochemical, and transportation industries.
Product Advantages:
OKorder's Steel Rebar, Deformed Steel Bar, Iron Rods For Construction/Concrete Material are durable, strong, and resist corrosion.
Main Product Features:
· Premium quality
· Prompt delivery & seaworthy packing (30 days after receiving deposit)
· Corrosion resistance
· Can be recycled and reused
· Mill test certification
· Professional Service
· Competitive pricing
Product Specifications:
Deformed bars/reinforced bars:
1.Material:GB--HRB400/HRB500 ; BS4449--460B/500B;
ASTM A615-Gr40/60 ; AS4671--500N/500E;
JISG3112--SD400 ; DIN488-1--BST500S;
KS-SD390.
2.Standard.:ASTM/JIS/DIN/BS/GB/KS.
3.Diameter:6-50mm.
The Specification of Deformed Steel Bars
| THEORETICAL WEIGHT INDEX | ||
| SIZE(mm) | CUT AREA(cm2) | THEORETICAL WEIGHT(kg/m) |
| 8 | 0.503 | 0.395 |
| 9 | 0.636 | 0.5 |
| 10 | 0.79 | 0.62 |
| 12 | 1.13 | 0.89 |
| 14 | 1.54 | 1.21 |
| 16 | 2.01 | 1.58 |
| 18 | 2.55 | 2 |
| 20 | 3.14 | 2.47 |
| 22 | 3.8 | 2.98 |
| 25 | 4.91 | 3.85 |
| 28 | 6.16 | 4.83 |
| 32 | 8.04 | 6.31 |
| Grade | Technical data of the original chemical composition(%) | ||||||||
| C | Mn | Si | S | P | B | ||||
| HRB335 | ≤ 0.25 | ≤ 1.60 | ≤ 0.80 | ≤ 0.045 | ≤ 0.045 | >0.0008 | |||
| Physics capability | |||||||||
| Yield Strength(N/cm 2 ) | Tensile Strength(N/cm 2 ) | Elongation (%) | |||||||
| ≥ 335 | ≥ 490 | ≥ 16 | |||||||
| 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 |
| Physics capability | ||||||
| Yield Strength ( N/cm 2 ) | Tensile Strength ( N/cm 2 ) | Elongation (%) | ||||
| ≥ 400 | ≥570 | ≥ 14 | ||||
FAQ:
Q1: Why buy Materials & Equipment from OKorder.com?
A1: All products offered byOKorder.com are carefully selected from China's most reliable manufacturing enterprises. Through its ISO certifications, OKorder.com adheres to the highest standards and a commitment to supply chain safety and customer satisfaction.
Q2: How do we guarantee the quality of our products?
A2: We have established an advanced quality management system which conducts strict quality tests at every step, from raw materials to the final product. At the same time, we provide extensive follow-up service assurances as required.
Q3: How soon can we receive the product after purchase?
A3: Within three days of placing an order, we will begin production. The specific shipping date is dependent upon international and government factors, but is typically 7 to 10 workdays.
- Q:What are the guidelines for the proper curing of concrete with steel rebars?
- The proper curing of concrete with steel rebars requires adherence to the following guidelines: 1. Moisture: To ensure proper hydration and strength development, it is necessary to maintain moisture during the curing process. However, excessive moisture should be avoided when curing concrete with steel rebars to prevent corrosion and damage. Therefore, it is important to strike a balance between providing sufficient moisture and preventing the accumulation of standing water around the rebars. 2. Covering: During the pouring process, it is crucial to adequately cover the steel rebars with concrete to protect against corrosion. The thickness of the cover should meet the design specifications to ensure adequate strength and durability. 3. Curing time: The curing time for concrete with steel rebars is typically longer than that of plain concrete. This is due to the need for the steel to bond with the concrete and achieve proper adhesion. The recommended curing period may vary depending on factors such as ambient temperature, humidity, and the specific type of steel used. It is important to refer to the project specifications or consult with a structural engineer to determine the appropriate curing time for the specific application. 4. Temperature control: Temperature control is essential during the curing process to ensure uniform hydration and prevent thermal stress. Rapid temperature changes can lead to cracking and compromise the integrity of the concrete. Therefore, it is important to protect the concrete from extreme temperature variations and provide insulation or shading as necessary. 5. Protection from external elements: Concrete with steel rebars must be safeguarded against external elements that can cause damage or corrosion. This includes protection from chloride ions, carbonation, and chemicals. Additional protection can be provided by applying suitable surface coatings or sealants. 6. Inspection and maintenance: Regular inspection and maintenance are vital for ensuring the long-term durability of concrete with steel rebars. It is important to monitor for signs of corrosion, cracking, or deterioration and take appropriate action promptly. This may involve repairing damaged areas, applying protective coatings, or implementing measures to prevent corrosion. By following these guidelines, the proper curing of concrete with steel rebars can be achieved, resulting in a construction material that is structurally sound and durable, capable of withstanding the test of time.
- Q:What is the impact of steel rebars on the overall sustainability of a building?
- Steel rebars have a significant impact on the overall sustainability of a building. The use of steel rebars in construction enhances the structural integrity and longevity of a building, reducing the need for frequent repairs and replacements. This, in turn, contributes to the sustainable aspect of a building by minimizing resource consumption and waste generation. Moreover, steel is a highly recyclable material, allowing for a circular economy approach in construction. By incorporating steel rebars, buildings can achieve higher energy efficiency, reduced environmental footprint, and enhanced durability, thus positively impacting their overall sustainability.
- Q:What are the different types of steel rebars available?
- There are several different types of steel rebars available, each with its own unique properties and applications. Some of the most common types include: 1. Mild Steel Rebars: These are the most commonly used type of rebars and are known for their high strength and durability. They are typically used in general construction projects and can withstand heavy loads. 2. High-Strength Deformed (HSD) Rebars: These rebars are made from carbon steel and are heat-treated to enhance their strength and elasticity. They have enhanced resistance to corrosion and are commonly used in high-rise buildings, bridges, and other structures that require extra strength. 3. European Rebars: These rebars are manufactured according to European standards and are typically made from mild steel. They have a ribbed surface to provide better adherence to concrete and are used in various construction applications. 4. Carbon Steel Rebars: These rebars are made from carbon steel and have a high carbon content. They have excellent strength and are widely used in structures that require exceptional durability, such as bridges and highways. 5. Epoxy-Coated Rebars: These rebars are coated with an epoxy layer to prevent corrosion and enhance their longevity. They are commonly used in marine structures and areas with high humidity or salt exposure. 6. Galvanized Rebars: These rebars are coated with a layer of zinc to provide protection against corrosion. They are commonly used in areas with high moisture content or in coastal regions. 7. Stainless Steel Rebars: These rebars are made from stainless steel and are highly resistant to corrosion. They are used in specialized applications, such as in areas with chemical exposure or in structures that require exceptional durability. It is important to choose the appropriate type of steel rebar based on the specific requirements of the construction project, including load-bearing capacity, corrosion resistance, and environmental conditions. Consulting with a structural engineer or construction professional can help determine the best type of rebar to use for a particular project.
- Q:Can steel rebars be used in structures with high aesthetic requirements?
- Indeed, structures with high aesthetic standards can make use of steel rebars. Although steel rebars are mainly employed for their robustness and longevity, they can also be fashioned and integrated in a manner that satisfies aesthetic necessities. Rebars have the potential to be molded, curved, or even coated to align with the desired visual appeal of the structure. Furthermore, they can be concealed within the framework or concealed under alternate materials to preserve a pristine and visually captivating facade. Through meticulous forethought and design, steel rebars can be effectively employed in structures with demanding aesthetic prerequisites without compromising their functionality or visual allure.
- Q:How do steel rebars affect the seismic performance of a structure?
- Steel rebars significantly improve the seismic performance of a structure by enhancing its strength, ductility, and overall structural stability. Rebars help to distribute and dissipate seismic forces, reducing the risk of structural failure and collapse during an earthquake. By reinforcing concrete elements, rebars increase the structure's resistance to bending, tension, and shear forces, thereby improving its ability to withstand seismic ground motions and maintain its integrity.
- Q:Can steel rebars be used in the construction of data centers and server rooms?
- Yes, steel rebars can be used in the construction of data centers and server rooms. Steel rebars provide structural reinforcement and can be used in the construction of walls, columns, and foundations. They help to enhance the overall strength and durability of the building, ensuring the safety and stability of the data center or server room infrastructure.
- Q:What are the common quality control tests for steel rebars?
- There are several common quality control tests conducted on steel rebars to ensure their compliance with industry standards and specifications. These tests help assess the physical, mechanical, and chemical properties of the rebars, ensuring their durability and performance. Some of the common quality control tests for steel rebars include: 1. Tensile Test: This test determines the tensile strength, yield strength, and elongation of the rebars. It involves applying a gradually increasing force to the rebar until it fractures, measuring the maximum force it can withstand before breaking. 2. Bend Test: This test evaluates the rebars' ability to withstand bending without cracking or breaking. The steel rebar is bent to a specific angle and checked for any visible cracks or fractures. 3. Chemical Composition Analysis: This test determines the chemical composition of the steel rebars, ensuring they meet the required standards. It involves analyzing the levels of carbon, manganese, phosphorus, sulfur, and other elements present in the rebar. 4. Visual Inspection: This test involves a visual examination of the rebars to ensure they are free from surface defects, such as cracks, splits, or any other irregularities that may affect their structural integrity. 5. Dimensional Inspection: This test verifies the dimensions and shape of the rebars, checking for any deviations from the specified requirements. It involves measuring the diameter, length, and shape of the rebars using calibrated instruments. 6. Weldability Test: In case the rebars are intended for welding purposes, a weldability test is performed to assess their suitability for welding. This test involves welding the rebars and evaluating the quality of the weld joint, including factors like strength, porosity, and brittleness. 7. Corrosion Resistance Test: This test determines the rebars' resistance to corrosion, which is crucial for their long-term durability. It involves subjecting the rebars to accelerated corrosion conditions, such as exposure to corrosive environments or salt spray, and assessing their corrosion resistance. These quality control tests play a vital role in ensuring the quality and reliability of steel rebars used in construction projects. By conducting these tests, manufacturers and inspectors can identify any non-compliant or substandard rebars, ensuring the safety and structural integrity of the buildings and infrastructure where these rebars are used.
- Q:How are steel rebars used in retaining walls?
- Steel rebars are used in retaining walls to provide additional strength and reinforcement. These rebars, which are typically placed horizontally and vertically within the wall, help to counteract the lateral forces and prevent the wall from collapsing or shifting. They enhance the structural integrity of the retaining wall, allowing it to withstand the pressure exerted by the soil or other materials being retained.
- Q:Are steel rebars suitable for use in structures with high resistance to corrosion?
- Structures with high resistance to corrosion should not use steel rebars. Although steel rebars are commonly used in construction because of their strength and durability, they can corrode when exposed to moisture and other corrosive elements. This corrosion can cause the rebars to deteriorate over time, compromising the entire structure's structural integrity. To ensure a high resistance to corrosion, it is recommended to use alternative materials such as stainless steel rebars or fiber-reinforced polymer (FRP) rebars. Stainless steel rebars contain a high percentage of chromium, which creates a protective oxide layer on the surface, preventing corrosion. On the other hand, FRP rebars are non-metallic and do not corrode, making them an excellent choice for structures in corrosive environments. When choosing the appropriate rebar material, it is crucial to consider the environmental conditions and the expected lifespan of the structure. By selecting rebars with a high resistance to corrosion, the structure's longevity and safety can be significantly improved.
- Q:What is the purpose of stirrups in steel rebar reinforcement?
- Stirrups in steel rebar reinforcement serve to offer lateral support and improve the overall structural integrity of reinforced concrete components. Typically made of bent steel bars, stirrups are positioned around the longitudinal rebar within concrete columns, beams, or slabs. One of the primary functions of stirrups is to prevent buckling or bending of the longitudinal rebar caused by external forces like compression, tension, or shear. By enclosing the rebar with closely spaced stirrups, the strength and stability of the reinforced concrete element are significantly increased. Additionally, stirrups play a crucial role in resisting shear forces, which arise when a structure is subjected to lateral loads or earthquakes. These forces can lead to cracking and failure of the concrete. However, stirrups distribute shear stresses more evenly, effectively impeding the formation and propagation of cracks. Moreover, stirrups enhance the bond between the rebar and concrete by providing extra contact area. This, in turn, results in improved load transfer and prevents slippage between the rebar and the surrounding concrete. To summarize, stirrups in steel rebar reinforcement aim to enhance the structural strength, stability, and durability of reinforced concrete elements. They offer lateral support, resist bending and shear forces, and enhance the bond between the rebar and concrete. By incorporating stirrups into the reinforcement design, engineers can ensure that the concrete structure can withstand various external loads and maintain its integrity over time.
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Steel Rebar, Deformed Steel Bar, Iron Rods For Construction/Concrete Material
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 30 m.t.
- Supply Capability:
- 40000 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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