Hot Rolled Deformed Steel Bar HRB400
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- China Main Port
- Payment Terms:
- TT or LC
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Product Description:
OKorder is offeringDeformed Steel Bar 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 Deformed Steel Bar 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:
Chemical Composition: (Please kindly find our chemistry of our material based on HRB400 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 | |||||
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: 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.
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- Q: Are there any standards or codes governing the use of steel rebars in construction?
- Yes, there are several standards and codes that govern the use of steel rebars in construction. For example, the most widely recognized standard is the ASTM A615/A615M, which outlines the requirements for deformed carbon-steel bars for concrete reinforcement. Additionally, various building codes such as the International Building Code (IBC) and local building regulations often reference these standards to ensure the safe and proper use of steel rebars in construction projects.
- Q: How are steel rebars protected during transportation and storage?
- Steel rebars are protected during transportation and storage by being coated with anti-corrosion materials such as epoxy or zinc, and by being securely bundled and wrapped in waterproof covers or tarps to prevent exposure to moisture, dirt, and physical damage.
- Q: What are the common quality issues found in steel rebars?
- Some common quality issues found in steel rebars are surface defects such as cracks, rust, and unevenness, as well as dimensional deviations, improper bending, and inadequate strength or hardness. These issues can compromise the structural integrity and longevity of reinforced concrete structures.
- Q: How are steel rebars protected during transportation and shipping?
- Steel rebars are typically protected during transportation and shipping through various measures such as applying rust-resistant coatings, using strong packaging materials, and securing them properly to prevent damage or movement.
- Q: How are steel rebars inspected for quality on construction sites?
- Steel rebars are critical components in construction projects, as they provide reinforcement and strength to concrete structures. Ensuring the quality of steel rebars is crucial to guarantee the safety and durability of the overall construction. To inspect the quality of steel rebars on construction sites, several methods are commonly employed. Visual Inspection: The first and most basic method of quality inspection involves visual examination of the rebars. This includes checking for any visible defects such as cracks, deformations, rust, or surface irregularities. Any rebars with such flaws are immediately identified and rejected. Measurement and Dimensional Checks: Steel rebars need to meet specific dimensional requirements as per project specifications and industry standards. Inspection personnel use measuring tools, such as calipers or tape measures, to verify the length, diameter, and other dimensions of the rebars. Any deviation from the specified tolerances may lead to rejection. Magnetic Particle Testing (MPT): MPT is a non-destructive testing method commonly used to detect surface and near-surface defects in steel rebars. This technique involves magnetizing the rebar and applying ferromagnetic particles, which accumulate at any surface defects or cracks. By carefully inspecting the surface, trained inspectors can identify any areas of concern. Ultrasonic Testing (UT): UT is another non-destructive testing method used for inspecting rebars. It involves the use of ultrasonic waves that are transmitted through the rebar. These waves reflect back differently when encountering any defects, such as voids, cracks, or inclusions. By analyzing the reflected waves, trained technicians can identify and assess the quality of the rebars. Tensile Testing: Tensile strength is a crucial factor in determining the quality of steel rebars. Tensile testing involves pulling a sample rebar until it breaks, measuring the force required to do so. This test helps determine the strength and ductility of the rebar, ensuring it meets the required standards. Chemical Analysis: Steel rebars are often subjected to chemical analysis to ensure they meet the specified composition requirements. Samples are collected from the rebars, and various tests are conducted to determine the chemical composition, including carbon, manganese, and other alloying elements. This analysis helps ensure the rebars possess the necessary properties for the intended application. All these inspection methods are typically conducted by qualified and experienced personnel, such as certified welding inspectors or quality control technicians. By employing 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 built.
- Q: What is the minimum ductility requirement for steel rebars?
- The minimum ductility requirement for steel rebars is typically specified as a minimum elongation or percentage reduction in area, which varies depending on the grade of steel and the specific application.
- Q: How do steel rebars affect the overall constructability of a project?
- Steel rebars have a significant impact on the overall constructability of a project. These reinforcing bars, commonly known as rebars, play a crucial role in enhancing the strength, durability, and stability of concrete structures. They are instrumental in mitigating the tensile forces that concrete alone cannot withstand, thereby increasing the overall load-bearing capacity of the structure. Firstly, steel rebars simplify the construction process by providing a framework for pouring and shaping concrete. They act as a skeletal structure that holds the concrete in place during the curing process, ensuring that it sets properly and takes the desired shape. This contributes to the overall efficiency of construction projects, as it allows for faster concrete placement and reduces the risk of structural deformities. Moreover, rebars enhance the structural integrity of the project. By reinforcing the concrete, they improve its ability to resist cracking, bending, and breaking under various loads and environmental conditions. This increased strength and resilience make the structure more durable and reduce the need for frequent repairs or maintenance, ultimately saving time and costs in the long run. In addition to strength and durability, steel rebars also enhance the constructability of a project by enabling flexibility in design. With rebars, architects and engineers have the freedom to create complex and innovative structures, such as high-rise buildings, bridges, and tunnels, that require high load-bearing capacities. The versatility of rebars allows for the construction of structures with unique shapes, curves, and spans, expanding the possibilities of architectural design. Furthermore, steel rebars facilitate constructability by enabling the construction of large-scale projects. The use of rebars allows for the creation of reinforced concrete elements, such as columns, beams, and slabs, which can support heavy loads and distribute them evenly throughout the structure. This capability is particularly crucial for projects that require significant weight-bearing capacity, such as industrial buildings or infrastructure projects. Overall, steel rebars have a profound impact on the constructability of a project. They simplify the construction process, enhance structural integrity, enable flexibility in design, and facilitate the construction of large-scale projects. By incorporating rebars into concrete structures, construction professionals can ensure that their projects are stronger, more durable, and better equipped to withstand various loads and environmental conditions.
- Q: What is the process of installing steel rebars in slabs and beams?
- The process of installing steel rebars in slabs and beams involves several steps. Firstly, the design and layout of the rebars are determined based on the structural requirements. The rebars are then cut, bent, and shaped according to the specifications. Next, the concrete forms for the slabs and beams are prepared, ensuring they are clean and properly aligned. Once the forms are ready, the rebars are placed inside the forms in the desired positions, maintaining the required spacing and clearances as per the design. Proper support is provided to hold the rebars in place and prevent displacement during the concrete pouring process. After the rebars are correctly positioned, concrete is poured into the forms, covering the rebars entirely. During pouring, care is taken to ensure that the concrete adequately surrounds and encases the rebars, providing the necessary structural integrity. Finally, the concrete is allowed to cure and harden, creating a strong bond with the rebars. Once the concrete has fully cured, the forms are removed, and any excess concrete or debris is cleaned off the surface. Overall, the process of installing steel rebars in slabs and beams involves careful planning, precise positioning, and proper concrete placement to create a reinforced structure that can withstand the intended loads and stresses.
- Q: How do steel rebars affect the overall maintenance requirements of concrete structures?
- Steel rebars, being strong and durable, enhance the structural integrity of concrete structures. By providing reinforcement, rebars help in distributing the load and increasing the resistance to cracking and tension. This leads to reduced maintenance requirements for concrete structures as they become more resistant to wear and tear, environmental factors, and potential structural failures.
- Q: What is the role of steel rebars in foundation slabs?
- Steel rebars play a crucial role in foundation slabs as they provide reinforcement and strength to the concrete. The rebars are strategically placed within the slab to distribute and withstand the load and stresses that the foundation may experience. This helps prevent cracks, increase durability, and enhance the overall structural integrity of the foundation slab.
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Hot Rolled Deformed Steel Bar HRB400
- 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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