Steel Rebar KS Standard SD400

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Product Description:

OKorder is offering Steel Rebar KS Standard SD400 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 African, South American and Asian markets. We provide quotations within 24 hours of receiving an inquiry and guarantee competitive prices.

Product Applications:

Steel Rebar KS Standard SD400 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 KS Standard SD400 are durable, strong, and wide variety of sizes.

Main Product Features:

· Premium quality

· Prompt delivery & seaworthy packing (30 days after receiving deposit)

· Can be recycled and reused

· Mill test certification

· Professional Service

· Competitive pricing

Product Specifications:

Manufacture: Hot rolled

Grade: SD400,SD500

Size: 6mm-32mm

Certificates: ISO, SGS, BV, CIQ

Length: 6m – 12m, as per customer request

Packaging: Export packing, nude packing, bundled

DEFORMED BAR
SIZE d(mm)	theoretical kg/m
6	0.222
8	0.395
10	0.617
12	0.888
14	1.21
16	1.58
18	2
20	2.47
22	2.98
25	3.85
28	4.83
32	6.31

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 soon can we receive the product after purchase?

A2: Within three days of placing an order, we will arrange production. The normal sizes with the normal grade can be produced within one month. The specific shipping date is dependent upon international and government factors, the delivery to international main port about 45-60days.

Q3: what is the difference between actual weight and theoretical weight?

A3: All the section steel has two weights: actual weight and theoretical weight. Actual weight is the weighing out when the product delivered from the mill. Theoretical weight is calculated by pieces. The invoice can be based on each of them as your request.

Images:

Steel Rebar KS Standard SD400

Q:How are steel rebars protected against lightning strikes?: Steel rebars are protected against lightning strikes through a process known as "bonding." During the construction of a structure, steel rebars are connected to a lightning protection system to redirect the electrical energy from a lightning strike safely into the ground. This system typically consists of lightning rods or air terminals installed at the highest points of the structure, which attract the lightning strike. The rebars are then interconnected with conductor cables, creating a network that ensures the lightning current is effectively grounded. The conductor cables are attached to the lightning rods and extend down the structure, connecting with the rebars at various points. By bonding the rebars with the lightning protection system, the electrical charge from a lightning strike is efficiently conducted away from the structure and harmlessly discharged into the ground. Furthermore, additional measures such as surge protection devices are often installed to further protect the rebars and the overall structure from potential damage caused by voltage surges resulting from lightning strikes. These surge protection devices help to minimize the risk of electrical surges that could potentially compromise the integrity of the rebars. In summary, steel rebars are protected against lightning strikes by being properly bonded to a lightning protection system. This ensures that the electrical energy from a lightning strike is safely directed away from the structure and grounded, reducing the risk of damage to the rebars and the overall structural integrity.

Q:How do steel rebars enhance the bond between concrete and reinforcement?: Steel rebars enhance the bond between concrete and reinforcement through various mechanisms. Firstly, the presence of rebars in concrete increases the mechanical interlock between the two materials. As concrete is poured around the rebars, it fills the gaps between the steel bars, creating a strong bond when it hardens. This mechanical interlock helps to prevent the separation of concrete and reinforcement, especially under tensile loads. Secondly, steel rebars enhance the bond by providing additional surface area for adhesion. The rough texture of the rebars allows the concrete to grip onto the steel surface, creating a stronger bond. This adhesion is further improved by the corrosion products that form on the surface of the steel rebars over time. These products create a rougher surface, increasing the bond strength between the concrete and reinforcement. Thirdly, rebars act as load transfer devices in concrete structures. When external forces are applied to the structure, the rebars distribute and transfer these forces to the surrounding concrete. This load transfer mechanism helps to improve the overall structural integrity and performance of the concrete element. Additionally, steel rebars also enhance the bond between concrete and reinforcement through their ability to resist deformation. Under tensile loads, the rebars elongate and absorb the stress, preventing the concrete from cracking. This prevents the development of cracks that could weaken the bond between the two materials. In summary, steel rebars enhance the bond between concrete and reinforcement by providing mechanical interlock, increased surface area for adhesion, load transfer capabilities, and resistance to deformation. These factors collectively contribute to the overall strength, durability, and performance of reinforced concrete structures.

Q:What is the standard length of steel rebars?: The standard length of steel rebars typically ranges from 6 meters to 12 meters, depending on the specific requirements and regulations of the construction industry in different countries.

Q:What are the advantages of using galvanized steel rebars?: Using galvanized steel rebars in construction projects offers several advantages. Firstly, the rebars are protected by a zinc coating that prevents corrosion, ensuring their durability and longevity. Unlike traditional steel rebars that may rust, the zinc coating acts as a barrier against moisture and other corrosive elements, preserving the structure's integrity. Secondly, galvanized steel rebars have a high ratio of strength to weight. This means they are both lightweight and incredibly strong, making them ideal for reinforced concrete structures. Their strength allows for the use of thinner and lighter rebars, reducing the overall weight of the structure and increasing cost-effectiveness. Additionally, working with and installing galvanized steel rebars is easy. They can be cut, bent, and shaped to meet specific project requirements. This ease of handling enables faster construction, saving both time and money. Furthermore, galvanized steel rebars are fire-resistant. The zinc coating acts as a protective layer, preventing them from burning or sustaining damage from high temperatures. This fire resistance is crucial for ensuring the stability and safety of structures, particularly in fire-prone areas or where fire safety regulations are strict. Lastly, galvanized steel rebars are environmentally friendly. The zinc coating used in the galvanization process is non-toxic and recyclable. This means that at the end of their lifespan, galvanized steel rebars can be easily recycled and reused, minimizing waste and reducing their environmental impact. In conclusion, the advantages of galvanized steel rebars include corrosion resistance, a high strength-to-weight ratio, ease of installation, fire resistance, and environmental friendliness. These benefits make them a popular and trustworthy choice for reinforcing concrete structures in various construction projects.

Q:Are there any standards for the spacing of steel rebars in concrete?: Steel rebars in concrete have specific spacing standards in place to guarantee the durability and structural integrity of the reinforced concrete. These standards may vary depending on factors such as the type of structure, load conditions, and local building codes. In the United States, the American Concrete Institute (ACI) provides guidelines for rebar spacing in their publication ACI 318, known as "Building Code Requirements for Structural Concrete." According to ACI 318, the minimum spacing between parallel reinforcing bars should be equal to or greater than the maximum bar size or 1.5 times the diameter of the largest coarse aggregate used in the concrete, whichever is larger. For instance, if the maximum bar size is 12mm and the largest coarse aggregate size is 20mm, the minimum spacing between the rebars should be 30mm (1.5 times the largest aggregate size). This ensures sufficient concrete cover around each rebar, protecting it from corrosion and providing adequate bond strength. In addition to the minimum spacing, ACI 318 also offers guidelines for the maximum spacing of rebars. These guidelines take into account factors such as the size and shape of the concrete member, the type of loading it will experience, and the required strength. The maximum spacing is typically determined to prevent excessive cracking and ensure proper distribution of loads throughout the structure. It is important to note that local building codes and regulations may have additional requirements or deviations from the ACI standards. Therefore, it is always recommended to consult the relevant building codes or work with a qualified structural engineer to ensure compliance with the specific spacing requirements for steel rebars in concrete in your area.

Q:How are steel rebars tested for tensile strength?: Steel rebars are tested for tensile strength through a process called tensile testing, where a sample of the rebar is subjected to an applied force until it breaks. The force applied is gradually increased, and the corresponding elongation and load values are recorded. This allows for the determination of the maximum force the rebar can withstand before failure, providing a measure of its tensile strength.

Q:Can steel rebars be used in the construction of power plants?: Yes, steel rebars can be used in the construction of power plants. Steel rebars are commonly used in reinforced concrete structures, including power plants, to provide strength and durability to the concrete. They help to reinforce the concrete and provide structural support, ensuring the stability and integrity of the power plant's infrastructure.

Q:32 of the rebar is one meter multiple: Steel is commonly known as hot rolled ribbed bar, belonging to the small steel steel, mainly used for steel reinforced concrete structure frame. In use, some mechanical strength, bending deformation property and welding performance are required.

Q:How do steel rebars prevent cracking in concrete structures?: Steel rebars prevent cracking in concrete structures by providing tensile strength to the concrete. As concrete is strong in compression but weak in tension, the rebars act as a reinforcement by absorbing the tensile forces and distributing them throughout the structure. This helps to resist cracking and increase the overall durability and strength of the concrete structure.

Q:What is the maximum length of straight steel rebars available in the market?: The maximum length of straight steel rebars available in the market can vary depending on the specific supplier and region. However, common lengths range from 6 meters (20 feet) to 12 meters (40 feet).

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