Steel Deformed Rebars ASTM GR40 System 1

Steel Deformed Rebars ASTM GR40

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Product Description:

OKorder is offering Steel Deformed Rebars ASTM GR40 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 Deformed Rebars ASTM GR40 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 Deformed Rebars ASTM GR40 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: ASTM GR40,GR60

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: How soon can we receive the product after purchase?

A1: 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.

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: 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.

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Steel Deformed Rebars ASTM GR40

Q:Can steel rebars be used in the construction of residential communities?: Yes, steel rebars can be used in the construction of residential communities. Steel rebars are commonly used in the construction industry for reinforcing concrete structures, including residential buildings. They provide strength and durability to the concrete, improving its load-bearing capacity and resistance to cracks and other forms of structural damage. Steel rebars are often used in residential construction to reinforce foundation footings, walls, columns, and beams. They help to ensure the structural integrity of the building, making it safer and longer-lasting. Additionally, steel rebars can be easily customized and shaped to fit specific design requirements, allowing for flexibility in construction. Overall, the use of steel rebars in residential communities is a common and widely accepted practice in the construction industry.

Q:Can steel rebars be used in structures with high moisture content in the environment?: No, steel rebars should not be used in structures with high moisture content in the environment as it can lead to corrosion and weakening of the rebars, compromising the structural integrity of the building.

Q:What are the guidelines for preventing steel rebars from rusting during construction?: There are several guidelines to prevent steel rebars from rusting during construction. Firstly, rebars should be stored in a dry area to avoid moisture exposure. Secondly, they should be covered with a waterproof material to protect them from rain or snow. Thirdly, rebars should not be in direct contact with the ground to prevent moisture absorption. Additionally, using epoxy coating or galvanization can provide an extra layer of protection against rust. Lastly, proper curing of concrete should be ensured to minimize the risk of moisture penetration into the rebars.

Q:What is the average weight of a steel rebar?: The weight of a steel rebar can vary depending on its size and length. Typically, steel rebars are sold in lengths of 20 feet and are available in various diameters ranging from 3/8 inch to 1 1/4 inch. To determine the average weight, one needs to consider the density of steel, which is approximately 0.2836 pounds per cubic inch. The weight of a steel rebar can be calculated by multiplying its volume (pi times the diameter squared divided by 4, multiplied by the length) by the density of steel. Let's take a 1/2 inch diameter rebar with a length of 20 feet as an example. The calculation would be as follows: 1. Convert the diameter to inches: 1/2 inch = 0.5 inches 2. Calculate the volume: (pi * 0.5^2) / 4 = 0.19635 cubic inches 3. Convert the length to inches: 20 feet = 240 inches 4. Multiply the volume by the length: 0.19635 cubic inches * 240 inches = 47.04 cubic inches 5. Multiply the volume by the density of steel: 47.04 cubic inches * 0.2836 pounds per cubic inch = 13.34 pounds Hence, the average weight of a 1/2 inch diameter steel rebar with a length of 20 feet is approximately 13.34 pounds.

Q:What is the recommended minimum cover for steel rebars in concrete?: The recommended minimum cover for steel rebars in concrete is typically 1.5 inches for interior applications and 2 inches for exterior applications. However, it is important to consult the local building codes and engineering specifications for specific project requirements.

Q:How do steel rebars contribute to the overall structural performance of a building?: Steel rebars contribute to the overall structural performance of a building by providing reinforcement to concrete. They enhance the strength, durability, and load-bearing capacity of structures, allowing them to withstand high pressures and resist bending, cracking, and collapsing. Additionally, rebars help distribute and transfer loads across different parts of the building, ensuring a more balanced and stable structure.

Q:What are the common mistakes to avoid when handling and storing steel rebars?: When handling and storing steel rebars, it is important to avoid certain common mistakes to ensure their quality and longevity. Here are some mistakes that should be avoided: 1. Poor storage conditions: Storing steel rebars in damp or wet areas can lead to corrosion and rust. It is crucial to store them in a dry and well-ventilated space to prevent moisture accumulation. 2. Insufficient support: When stacking rebars, it is important to have proper support to prevent bending or deformation. Inadequate support can lead to rebar damage and compromise their structural integrity. 3. Improper lifting techniques: When handling rebars, it is essential to use proper lifting equipment and techniques. Using hooks or chains directly on the rebars can cause damage and weaken them. It is recommended to use lifting devices specifically designed for rebar handling. 4. Overloading: Avoid overloading storage racks or platforms with excessive weight. Overloading can cause structural failure and potentially injure workers. Always follow the manufacturer's guidelines for maximum weight capacity. 5. Lack of protection: Rebars should be protected from exposure to moisture, dirt, and other contaminants. Proper wrapping with plastic or waterproof covers can help prevent corrosion and maintain their quality. 6. Improper transportation: During transportation, care should be taken to secure the rebars properly to prevent movement or damage. Using appropriate restraints and padding can help prevent any potential accidents or rebar displacement. 7. Mixing different grades: Avoid mixing rebars of different grades together as they have varying strength and performance characteristics. Mixing different grades can compromise the overall structural integrity of the construction project. 8. Ignoring quality control: It is important to conduct regular quality checks on the rebars to ensure they meet the required specifications. Ignoring quality control can result in the use of substandard rebars, which can compromise the safety and durability of the structure. By avoiding these common mistakes, construction professionals can ensure the proper handling and storage of steel rebars, leading to safer and more durable structures.

Q:How do steel rebars contribute to the seismic performance of concrete buildings?: Steel rebars play a crucial role in enhancing the seismic performance of concrete buildings. They provide reinforcement to concrete structures, making them more resistant to seismic forces. During an earthquake, the ground shakes violently, exerting horizontal and vertical forces on the building. These forces can cause the concrete to crack or even collapse if not properly reinforced. Steel rebars are used to strengthen the concrete and mitigate the effects of seismic activity. The rebars are strategically placed within the concrete, forming a mesh-like network that increases the tensile strength of the structure. Concrete is strong in compression but weak in tension, whereas steel has excellent tensile strength. By combining the two materials, the rebars help to distribute the seismic forces more evenly throughout the concrete, preventing cracks from propagating and providing a more ductile behavior. In addition to improving the tensile strength, steel rebars also enhance the overall stiffness of the structure. This stiffness helps to reduce the building's response to vibrations during an earthquake, minimizing the potential for damage. The rebars act as a backbone for the concrete, increasing its resistance to deformation and improving the building's overall structural integrity. Moreover, steel rebars also contribute to the ductility of the structure. Ductility refers to the ability of a material to deform under stress without losing its structural integrity. During an earthquake, the building undergoes significant displacement and deformation. Steel rebars allow the concrete to flex and absorb the energy from seismic forces without catastrophic failure. This ductile behavior ensures that the building can withstand the shaking and provides occupants with more time to evacuate safely. Overall, steel rebars are crucial in enhancing the seismic performance of concrete buildings. They improve the tensile strength, stiffness, and ductility of the structure, reducing the risk of damage or collapse during an earthquake. By reinforcing the concrete, steel rebars play a vital role in ensuring the safety and resilience of concrete buildings in seismic-prone areas.

Q:Can steel rebars be used in wind turbine tower construction?: Steel rebars are indeed utilized in the construction of wind turbine towers. In the construction industry, steel rebars are frequently employed to reinforce concrete structures. Wind turbine towers typically consist of reinforced concrete for both the foundation and the tower structure. By integrating steel rebars, the concrete's strength and durability are enhanced, enabling it to withstand the wind turbine's exerted loads and forces. The rebars effectively reinforce the concrete, ensuring the even distribution of loads throughout the tower structure, thereby guaranteeing its stability and structural integrity. Consequently, steel rebars hold significant importance in wind turbine tower construction and are commonly employed in this particular application.

Q:What are the advantages of using composite steel rebars?: There are several advantages of using composite steel rebars. Firstly, composite steel rebars offer higher tensile strength compared to traditional steel rebars, making them more durable and resistant to deformation. Secondly, they have a lower coefficient of thermal expansion, reducing the risk of cracking and improving long-term performance. Additionally, composite steel rebars are corrosion-resistant, ensuring a longer lifespan and lower maintenance costs. Furthermore, these rebars are lighter in weight, making them easier to handle and transport. Lastly, composite steel rebars can be easily fabricated and installed, allowing for greater design flexibility and faster construction.

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