HoT Rolled Deformed D-BAR SD400 HRB400
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 50 m.t.
- Supply Capability:
- 50000 m.t./month
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Product Description:
OKorder is offering HoT Rolled Deformed D-BAR SD400 HRB400 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:
HoT Rolled Deformed D-BAR SD400 HRB400are 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 HoT Rolled Deformed D-BAR SD400 HRB400 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:
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 | ||
Brand name | DRAGON | ||
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 | |||||
Theoretical weight and section area of each diameter as below for your information:
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 |
10 | 78.54 | 0.617 | 7.404 |
12 | 113.1 | 0.888 | 10.656 |
14 | 153.9 | 1.21 | 14.52 |
16 | 201.1 | 1.58 | 18.96 |
18 | 254.5 | 2.00 | 24 |
20 | 314.2 | 2.47 | 29.64 |
22 | 380.1 | 2.98 | 35.76 |
25 | 490.9 | 3.85 | 46.2 |
28 | 615.8 | 4.83 | 57.96 |
32 | 804.2 | 6.31 | 75.72 |
36 | 1018 | 7.99 | 98.88 |
40 | 1257 | 9.87 | 118.44 |
50 | 1964 | 15.42 | 185.04 |
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
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.
Images:
- Q: How do steel rebars contribute to the durability of a structure?
- Steel rebars contribute to the durability of a structure by providing reinforcement and strength to concrete. The rebars act as a skeleton within the concrete, increasing its tensile strength and helping to prevent cracking or collapsing under stress. This reinforcement improves the overall structural integrity and longevity of the building, making it more resistant to external forces such as earthquakes, wind, and heavy loads.
- Q: What are the factors that can cause steel rebars to corrode prematurely?
- There are several factors that can contribute to the premature corrosion of steel rebars. These include exposure to moisture, high levels of chloride ions, carbonation of concrete, inadequate concrete cover, poor quality of concrete or protective coatings, and the presence of other aggressive chemicals such as sulfates or acids. Environmental conditions, such as high humidity, coastal areas, or industrial environments, can also accelerate the corrosion process. Additionally, improper construction practices, such as inadequate compaction or curing of concrete, can lead to the initiation and progression of corrosion in steel rebars.
- Q: 10 less than three rebar refers to the rebar?
- Because of the mechanical properties, three grade steel buckling point is higher, in order to increase the concrete and steel reinforcement force, so add rib (add thread)
- Q: What is the role of steel rebars in minimizing the risk of structural collapse?
- Steel rebars play a crucial role in minimizing the risk of structural collapse by enhancing the strength and stability of reinforced concrete structures. They provide additional tensile strength to the concrete, which is otherwise weak in tension. By reinforcing the concrete with steel rebars, the overall load-bearing capacity of the structure increases, making it more resistant to external forces such as earthquakes, winds, and heavy loads. Additionally, rebars help in distributing and transferring the applied loads, reducing the concentration of stress points and preventing cracks or failures in the structure. Therefore, steel rebars act as a vital component in ensuring the structural integrity and safety of buildings and infrastructure.
- Q: Can steel rebars be used in the construction of dams or reservoirs?
- Yes, steel rebars can be used in the construction of dams or reservoirs. Steel rebars provide structural reinforcement and enhance the strength and durability of concrete structures, making them suitable for large-scale projects like dams and reservoirs.
- Q: How are steel rebars marked for identification on construction sites?
- Steel rebars are typically marked for identification on construction sites using a variety of methods. The most common method is through the use of tags or labels that are attached to the rebars. These tags often contain important information such as the diameter, grade, and length of the rebar, as well as any additional specifications or codes that may be required. In addition to tags, rebars may also be marked using paint or ink. This can be done by either spraying or stenciling the required information directly onto the surface of the rebar. Paint or ink markings are often used for temporary identification purposes or when tags are not feasible. Another method of marking rebars is through the use of colored plastic or vinyl caps. These caps are placed on the ends of the rebars and are typically color-coded to indicate various characteristics such as the size or type of rebar. This method allows for quick and easy visual identification on the construction site. It is important to note that the specific method of marking rebars may vary depending on local regulations, project requirements, or the preferences of the construction company or engineer. The goal of these markings is to ensure that rebars can be easily identified and sorted during construction, helping to ensure proper installation and adherence to design specifications.
- Q: How are steel rebars inspected for quality on construction sites?
- In construction projects, steel rebars play a critical role by providing reinforcement and strength to concrete structures. It is crucial to ensure the quality of steel rebars in order to guarantee the safety and durability of the overall construction. To inspect the quality of steel rebars on construction sites, various methods are commonly used. The first and most basic method of quality inspection is visual examination. This involves visually inspecting the rebars for any visible defects such as cracks, deformations, rust, or surface irregularities. Any rebars with such flaws are immediately identified and rejected. Another method involves measuring and checking the dimensions of the rebars. Inspection personnel use measuring tools like calipers or tape measures to verify the length, diameter, and other dimensions of the rebars. Any deviation from the specified tolerances may result in rejection. Magnetic Particle Testing (MPT) is a non-destructive testing method that is commonly employed to detect surface and near-surface defects in steel rebars. In this technique, the rebar is magnetized and ferromagnetic particles are applied, which accumulate at any surface defects or cracks. Trained inspectors carefully examine the surface to identify any areas of concern. Ultrasonic Testing (UT) is another non-destructive testing method used for inspecting rebars. It involves transmitting ultrasonic waves through the rebar. These waves reflect back differently when they encounter defects like voids, cracks, or inclusions. Trained technicians analyze the reflected waves to identify and assess the quality of the rebars. Tensile Testing is carried out to determine the tensile strength of the rebars, which is crucial in assessing their quality. A sample rebar is pulled until it breaks, and the force required to do so is measured. This test helps determine the strength and ductility of the rebar, ensuring it meets the required standards. Chemical analysis is often conducted on steel rebars to ensure they meet the specified composition requirements. Samples are collected from the rebars, and various tests are performed to determine the chemical composition, including carbon, manganese, and other alloying elements. This analysis helps ensure that the rebars possess the necessary properties for the intended application. These inspection methods are typically carried out by qualified and experienced personnel, such as certified welding inspectors or quality control technicians. By implementing these quality inspection procedures, construction sites can ensure that the steel rebars used in their projects meet the required standards, thereby ensuring the safety and longevity of the structures being constructed.
- Q: What are the different types of steel rebars used in foundation construction?
- Foundation construction commonly utilizes various types of steel rebars. These include: 1. Mild Steel Rebars, also known as black bars, are the most frequently employed in foundation construction. They possess a low carbon content and are easy to handle. Mild steel rebars offer satisfactory tensile strength and are cost-effective. 2. High Yield Strength Rebars possess a higher carbon content and undergo heat treatment to enhance their strength. They are commonly applied in areas requiring additional strength, such as high-rise buildings or seismic zones. High yield strength rebars exhibit superior resistance against tensile and compressive forces. 3. Epoxy-Coated Rebars are coated with epoxy resin to safeguard them against corrosion. They are often utilized in areas where the foundation is exposed to moisture or chemicals, such as marine or industrial environments. The epoxy coating acts as a barrier, preventing water and other corrosive substances from reaching the steel and causing rust. 4. Galvanized Rebars are coated with a layer of zinc to shield them from corrosion. The zinc coating provides excellent resistance against moisture and chemicals, making galvanized rebars suitable for use in high humidity areas or in concrete containing chloride ions. They are frequently employed in coastal regions or structures like bridges and parking garages. 5. Stainless Steel Rebars possess high corrosion resistance and are implemented in environments where other types of rebars may fail due to corrosion. They are commonly utilized in structures exposed to aggressive environments, such as chemical plants or wastewater treatment facilities. Stainless steel rebars are also employed in regions with a high risk of corrosion, such as coastal or humid areas. In conclusion, the selection of steel rebars for foundation construction depends on factors such as project requirements, environmental conditions, and the desired level of corrosion resistance. It is crucial to choose the appropriate type of rebar to ensure the durability and strength of the foundation.
- Q: What are the guidelines for the proper spacing of steel rebars in columns?
- Various national and international codes and standards, such as the American Concrete Institute (ACI) and the British Standards Institution (BSI), provide guidelines for the proper spacing of steel rebars in columns. These guidelines are crucial in ensuring the durability and structural integrity of reinforced concrete columns. The spacing of steel rebars in columns is primarily influenced by the following factors: 1. Concrete cover: Codes specify a minimum concrete cover to protect the steel reinforcement from corrosion and provide fire resistance. The spacing between rebars should maintain a uniform concrete cover around each rebar. 2. Rebar diameter: The size or diameter of rebars affects their spacing. Codes mandate a minimum clear spacing between adjacent rebars based on their diameter to prevent congestion and ensure proper concrete placement. 3. Column dimension: The size and shape of the column play a significant role in determining rebar spacing. Larger columns may require more rebars compared to smaller ones to provide sufficient reinforcement and resist applied loads. 4. Load and design requirements: Design loads, including dead loads, live loads, and seismic loads, impact rebar spacing. Codes provide guidelines on the minimum amount of reinforcement required based on column dimensions and anticipated loads. 5. Structural detailing: Proper detailing is crucial to ensure rebars are adequately anchored and lapped, developing the required bond strength. Codes provide guidelines for lapping lengths, anchorage lengths, and splices to ensure force transfer between rebars and concrete. Consulting the specific code or standard applicable in your region is crucial to determine the exact guidelines for rebar spacing in columns. It is also recommended to involve a qualified structural engineer or designer to perform detailed analysis and design of reinforced concrete columns, ensuring compliance with the appropriate guidelines and achieving a safe and efficient structural system.
- Q: How do steel rebars contribute to the overall resistance against natural disasters?
- Steel rebars contribute to the overall resistance against natural disasters by reinforcing structures such as buildings, bridges, and dams. They enhance the strength and stability of these structures, making them more resistant to earthquakes, hurricanes, and other natural calamities. Steel rebars increase the structural integrity, prevent collapse, and distribute the force of the disaster, reducing the extent of damage and protecting lives and property.
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HoT Rolled Deformed D-BAR SD400 HRB400
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 50 m.t.
- Supply Capability:
- 50000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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