Deformed Steel Bar ASTM A615 GR40 GR60 Or BS 4449
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Product Description:
OKorder is offering high quality Hot Rolled Steel I-Beams 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:
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
Product Advantages:
OKorder's Steel I-Beams are durable, strong, and resist corrosion, exact size, regular package, chemical and mechanical properties are stable.
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:
Manufacture: Hot rolled
Grade: BS4449
Certificates: ISO, SGS, BV, CIQ
Diameter: 6mm,8mm,10mm,12mm,14mm,16mm,18mm,20mm,
22mm,25mm,28mm,32mm,36mm,40mm,50mm
Length: 6M, 9M,12M or as required
Packaging: Export packing, nude packing, bundled
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 |
FAQ:
Q1: How soon can we receive the product after purchase?
A1: 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.
Q2: What makes stainless steel stainless?
A2: Stainless steel must contain at least 10.5 % chromium. It is this element that reacts with the oxygen in the air to form a complex chrome-oxide surface layer that is invisible but strong enough to prevent further oxygen from "staining" (rusting) the surface. Higher levels of chromium and the addition of other alloying elements such as nickel and molybdenum enhance this surface layer and improve the corrosion resistance of the stainless material.
Q3: Can stainless steel rust?
A3: Stainless does not "rust" as you think of regular steel rusting with a red oxide on the surface that flakes off. If you see red rust it is probably due to some iron particles that have contaminated the surface of the stainless steel and it is these iron particles that are rusting. Look at the source of the rusting and see if you can remove it from the surface.
- Q: Can steel rebars be used in structures with high resistance to fire?
- Steel rebars are indeed able to be utilized in structures that possess strong resistance to fire. Due to its high melting point and ability to maintain its strength even when exposed to elevated temperatures, steel proves to be an appropriate choice for incorporation into fire-resistant structures. Furthermore, steel rebars can undergo a coating process involving the application of fire-resistant substances such as epoxy or intumescent coatings, thereby augmenting their fire resistance capabilities. These coatings function by establishing a protective layer that impedes the steel from reaching its critical temperature and consequently compromising its structural integrity during a fire event. Thus, it is commonplace to find steel rebars being employed in a variety of fire-resistant structures, including but not limited to high-rise buildings, bridges, and industrial facilities, where prioritizing fire safety is of utmost importance.
- Q: What are the factors to consider while selecting steel rebars for a project?
- Some factors to consider while selecting steel rebars for a project include the required strength and durability, the specific application and design requirements, the desired corrosion resistance, the availability and cost of the rebars, and compliance with relevant industry standards and regulations. It is also important to consider the supplier's reputation and reliability, as well as any additional services they may offer such as customization or technical support.
- Q: Are steel rebars suitable for use in extreme weather conditions?
- Yes, steel rebars are suitable for use in extreme weather conditions. Steel has excellent structural strength and durability, making it resistant to harsh environmental factors such as high winds, heavy rainfall, extreme temperatures, and even seismic activity. Additionally, steel rebars can be coated or treated to provide further protection against corrosion in areas with high humidity or exposure to saltwater. Overall, steel rebars are a reliable choice for ensuring the structural integrity of buildings and infrastructure in extreme weather conditions.
- Q: How do steel rebars contribute to the overall energy efficiency of a building?
- Steel rebars contribute to the overall energy efficiency of a building by enhancing its structural integrity and reducing the need for excessive heating, cooling, and maintenance. The use of steel rebars in construction provides increased durability, which allows for longer building lifespan, reduced repairs, and lower energy consumption. Additionally, steel rebars can be recycled, reducing the environmental impact and energy required for construction materials.
- Q: What are the different types of steel rebars used in underground constructions?
- There are several types of steel rebars used in underground constructions, including epoxy-coated rebars, stainless steel rebars, and galvanized rebars. These different types of rebars offer various benefits such as increased corrosion resistance, improved durability, and enhanced structural strength, making them suitable for different underground applications.
- Q: What is the role of steel rebars in reinforced concrete beams?
- The role of steel rebars in reinforced concrete beams is to provide tensile strength and reinforcement to the concrete. Concrete is strong in compression but weak in tension, so the steel rebars are embedded within the concrete to carry the tensile forces and prevent cracking or failure of the beam. The rebars distribute the applied loads throughout the beam, increasing its overall strength and durability.
- Q: What is the lifespan of steel rebars?
- The lifespan of steel rebars can vary depending on various factors such as the quality of the steel used, the environment it is exposed to, and the level of maintenance. However, generally, steel rebars have a lifespan of around 50 to 100 years.
- Q: How do steel rebars affect the bond strength between concrete and reinforcement?
- The bond strength between concrete and reinforcement is greatly improved by steel rebars, which play a vital role in this enhancement. When rebars are present in concrete structures, they create a mechanical interlock between the two materials, resulting in a bond that is not only stronger but also more durable. To begin with, the presence of rebars provides a larger surface area for the concrete to adhere to. The rough texture of the steel surface effectively allows the fresh concrete to bond, resulting in a strong bond. Additionally, this increased surface area helps to distribute loads more evenly, reducing stress concentrations and ultimately enhancing the overall structural integrity of the concrete. In addition, rebars act as a medium for transferring loads, ensuring that forces are effectively transmitted between the concrete and reinforcement. As concrete is typically weak in resisting tensile forces, the rebars bear these forces and effectively carry them across the concrete-rebar interface. This prevents cracks from spreading and helps to maintain the stability and strength of the structure as a whole. Furthermore, the presence of rebars helps to control cracking in concrete. When concrete undergoes shrinkage or experiences temperature variations, it tends to crack. However, with the presence of rebars, these cracks are limited or minimized. The rebars act as reinforcement, holding the concrete together and preventing the propagation of cracks. Moreover, steel rebars improve bond strength by providing anchorage. When rebars are embedded into the concrete, they create a mechanical connection that prevents the rebar from slipping or being pulled out. This anchorage ensures that the bond between the concrete and reinforcement remains intact, even under high loads or external forces. In summary, steel rebars significantly enhance the bond strength between concrete and reinforcement. They provide a larger surface area for adhesion, act as load transfer mediums, control cracking, and offer anchorage, resulting in a bond that is stronger and more durable. Their presence contributes to the overall stability and longevity of concrete structures.
- Q: Are steel rebars easy to cut and shape?
- Yes, steel rebars are relatively easy to cut and shape. They can be easily cut using tools such as saws or shears, and can be shaped into various forms through bending or welding.
- Q: What is the process of inspecting steel rebars for quality control?
- The process of inspecting steel rebars for quality control involves several steps to ensure that the rebars meet the required standards and specifications. Here is a general overview of the process: 1. Visual Inspection: The first step is to visually inspect the rebars for any visible defects such as cracks, surface imperfections, or irregularities in shape or size. This can be done manually or using automated systems that detect defects through image processing techniques. 2. Measurement and Dimensional Inspection: The rebars are then measured for their dimensions, including length, diameter, and shape. This is typically done using calibrated measuring instruments such as calipers, gauges, or laser-based devices. The measurements are compared against the specified tolerances to ensure compliance. 3. Chemical Analysis: A sample of rebars is taken and subjected to chemical analysis to determine the composition of the steel. This includes measuring the levels of carbon, manganese, sulfur, phosphorus, and other elements. The results are compared against the required chemical composition specified in the standards. 4. Mechanical Testing: Mechanical properties such as tensile strength, yield strength, elongation, and bendability are crucial for rebars used in construction. Samples are taken from the batch and tested in a laboratory using standardized tests, such as tensile testing machines, to ensure they meet the specified requirements. 5. Corrosion Resistance Testing: Rebars are often exposed to harsh environmental conditions, so it is important to assess their resistance to corrosion. This can be done through tests like salt spray testing or electrochemical methods to measure the rebars' corrosion resistance and ensure they will maintain their strength over time. 6. Weldability Testing: If rebars are intended for welding applications, their weldability is assessed. This includes evaluating the rebars' ability to form a strong and sound weld joint without any defects. Weldability tests may involve visual inspection, bend tests, or even destructive testing of welded samples. 7. Documentation and Certification: Throughout the inspection process, detailed records of all measurements, test results, and observations are documented. If the rebars pass all quality control tests, a certification or quality control report is issued, indicating that the rebars meet the required standards and specifications. It is worth noting that the specific inspection procedures may vary depending on the applicable standards, project requirements, and the type of rebar being inspected. Additionally, these inspections can be conducted by internal quality control teams or independent third-party inspection agencies to ensure impartiality and accuracy of the results.
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Deformed Steel Bar ASTM A615 GR40 GR60 Or BS 4449
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT or LC
- Min Order Qty:
- -
- Supply Capability:
- -
OKorder Service Pledge
OKorder Financial Service
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