Hot Rolled Steel Coil (1250.1500.1800 mm)

Hot Rolled Steel Coil (1250.1500.1800 mm)

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t.

Supply Capability:: 10000 m.t./month

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Basic Info.

Model NO.:Wefsun

Surface Treatment:Coated

Certification:SGS

Technique:Hot Rolled

Standard:GB

Application:Ship Plate

Edge:Mill

Stock:Stock

Steel Grade:Q195

Product Name:Hot Rolled Steel Coil

Width:1000.1250mm

Export Markets:South America, Southeast Asia, Africa, Oceania, Eastern Asia

Additional Info.

Trademark:Wefsun

Packing:Standard Export Seaworthy Packing

Standard:SGS, ISO BV

Origin:China

HS Code:72168500

Production Capacity

Product Description

1>Product Name:Hot Rolled Coil
2>ASTM,AISI,DIN,JIS,EN
3>Surface:BA,2B,No.1,No.4
4>Thickness:0.1-50mm
5>Width:1m,1.22m,1.5m or others
6>We have professional and strictly producing control system on hot rolled coil as below:
7 Before Formed Coil :
      Assurance of compliance
      Review of Sub-vendor ; quality plan ;
      Review of samples certification (MTC)
      Chemical analysis
      Tension &Mechanical tests

8 Features:

Q195~Q345 hot rolled plate has low chemical composition and high-intensity, i.e. C and Mn content lower than that of all similar products at the same intensity level in China, high-performance products can be produced with low chemical composition. The specific hot-rolled process as per carbon equivalent will help improve the precision of product size and bring about high hit rate. Goods can be delivered as steel plates, steel coils and slitting strips to meet different needs of users.

Q: Is steel easier to weld?Which is more brittle/less flexible?: You should not attempt to do any traditional welding of steel to aluminum as they can form a hard and brittle inter metallic compound known as iron aluminide. You would have to employ a process that did not melt either species. Cladding could be an option but you are kind of limited to flat products that are sandwiched together. There is also explosive which does almost the same thing as cladding. Friction stir welding might be possible but I cant vouch for that. The temperature does get pretty hot, so I am not sure what would happen. But any of these suggestions would take specialized equipment not available to the average user. For weight, Al is 2.7 g/cc and Iron is about 7.8 so it is about 3 times heavier for the same volume. How strong either of them are greatly depends on specific alloys and heat treatment. I think some of the strongest aluminum alloys have a yield strength of about 50,000 psi which would relate to a relatively weak steel. For steel, there are alloys that can have yield strengths in the hundreds of thousands psi.

Q: How are steel coils used in the manufacturing of electrical appliances?: Steel coils are used in the manufacturing of electrical appliances primarily for their magnetic properties. These coils are wound around a core to create electromagnets, which are essential components in various appliances like transformers, motors, generators, and solenoids. The magnetic field generated by the steel coils allows for the efficient conversion of electrical energy into mechanical energy or vice versa, enabling the proper functioning of these appliances.

Q: How are steel coils used in the manufacturing of packaging materials?: Steel coils are often used in the manufacturing of packaging materials such as cans, drums, and metal sheets. These coils are unwound and processed through various machines to form the desired shape and size of the packaging material. The steel coils provide strength, durability, and a protective barrier, ensuring the safety and preservation of the packaged goods.

Q: What is the process of galvanizing steel coils?: Enhancing the durability and protecting steel coils from corrosion involves a series of steps in the galvanization process. To begin, the steel coils undergo a thorough cleaning to eliminate any dirt, oil, or impurities on the surface. This is achieved through an acid pickling process, where the coils are immersed in a diluted acid solution or treated with a chemical cleaner. The aim is to ensure the surface of the coils is free from contaminants, allowing for better adhesion of the zinc coating. Following the cleaning process, the coils are rinsed to remove any remaining acid or cleaner, preventing adverse reactions in the next stage. The subsequent step involves the actual galvanization, where the cleaned coils are submerged in a bath of molten zinc. To guarantee an even coating, the coils are carefully passed through the zinc bath using rollers or other mechanisms. The zinc bath is maintained at a specific temperature, typically around 450°C (842°F), enabling the molten zinc to bond with the steel surface. Upon withdrawal from the zinc bath, excess zinc is eliminated by passing the coils through air knives or by centrifugal spinning. This ensures control over the thickness of the zinc coating, resulting in a uniform appearance. Once the galvanization process is complete, the steel coils are gradually cooled to room temperature. This facilitates the solidification and firm bonding of the zinc coating with the steel surface, creating a protective barrier against corrosion. The final step involves inspection and quality control. The galvanized steel coils are carefully examined for any defects, such as uneven coating or areas with insufficient zinc coverage. This inspection is typically conducted visually or using specialized equipment capable of detecting anomalies. Additionally, the coating thickness is measured to ensure it meets the required specifications. In conclusion, the galvanization process for steel coils is designed to enhance their longevity and shield them from rust and corrosion. By applying a layer of zinc coating to the steel surface, the coils become more resistant to environmental factors, making them suitable for a wide range of applications across various industries.

Q: What are the different coil packaging options available for steel coils?: Customers have a range of coil packaging options to choose from for steel coils, depending on their specific requirements and preferences. Some commonly used packaging options include the following: 1. Traditional steel strapping is used to secure the coil, ensuring excellent stability and protection during transportation and storage. 2. Plastic strapping is a lighter and more cost-effective alternative to steel strapping, suitable for smaller and lighter steel coils while still providing sufficient strength and protection. 3. Shrink wrapping involves using heat to tightly seal a plastic film around the steel coil, offering protection against moisture, dust, and other contaminants. 4. Wooden crates provide additional protection against physical damage during handling and transportation. They can be customized to fit the coil's dimensions and secured with straps or nails. 5. Coil covers are heavy-duty plastic or fabric covers that shield the steel coil from environmental factors like UV exposure, moisture, and dust. They are often used in combination with other packaging methods. 6. Paper or fiberboard wrapping offers a lightweight and cost-effective solution for protecting the coil against minor scratches and abrasions. 7. Customized packaging allows for a combination of the above options or tailor-made solutions based on specific requirements. This may involve additional padding, corner protectors, or special handling instructions to ensure safe transportation and storage. Customers should consider factors such as coil size, weight, transportation mode, storage conditions, and budget to choose the most suitable coil packaging option for their needs.

Q: How do steel coils compare to stainless steel coils?: Steel coils and stainless steel coils find extensive use in various industries due to their robustness and durability. Nevertheless, selecting the appropriate material necessitates considering some essential distinctions between the two. One of the primary disparities lies in the composition of the materials. Steel coils, primarily comprising iron and carbon, incorporate additional elements to enhance specific properties. Conversely, stainless steel coils contain iron, carbon, and a substantial amount of chromium, which imparts them with distinctive corrosion-resistant attributes. Owing to the presence of chromium, stainless steel coils outperform regular steel coils in their resistance to corrosion, tarnishing, and rust. This renders stainless steel coils highly suitable for applications within environments characterized by elevated humidity, moisture, or exposure to corrosive substances. On the contrary, steel coils are more susceptible to rust and may necessitate supplementary protective coatings or treatments to avert corrosion. Another notable differentiation concerns the visual appearance of the two materials. Stainless steel coils boast a lustrous and reflective surface, endowing them with an aesthetically pleasing allure. They commonly find application in contexts where appearance holds significance, such as kitchen appliances, architectural structures, or decorative purposes. Conversely, steel coils exhibit a matte or dull finish and are frequently employed in industrial applications where visual aesthetics are of secondary concern. In terms of strength, both steel and stainless steel coils exhibit excellent mechanical properties. However, stainless steel coils generally demonstrate greater tensile strength and enhanced resistance to high temperatures. Consequently, they prove well-suited for applications necessitating strength, such as the construction, automotive, or aerospace industries. Lastly, cost represents a factor warranting consideration while comparing steel coils to stainless steel coils. Steel coils generally offer a more cost-effective option due to the lower expense of raw materials and simpler manufacturing processes. Nevertheless, when factoring in the added value of corrosion resistance and longevity, stainless steel coils may emerge as a more economical choice in the long run, requiring less maintenance and replacement. To conclude, steel coils and stainless steel coils possess distinct properties and characteristics, rendering them suitable for specific applications. Stainless steel coils exhibit superior corrosion resistance, a glossy appearance, and heightened tensile strength, while steel coils prove more cost-effective. Ultimately, the selection between the two hinges on the precise requirements of the application, encompassing factors such as the environment, aesthetics, strength, and budget.

Q: How are steel coils tested for tensile strength?: Steel coils are tested for tensile strength through a process called tensile testing. In this method, a small sample is taken from the steel coil and subjected to a controlled force until it breaks. The force applied during the test is gradually increased until the sample fractures. The maximum force required to break the sample is measured, and this provides valuable information about the tensile strength of the steel coil.

Q: How are steel coils used in the production of roofing panels?: To manufacture roofing panels, steel coils are indispensable. These coils, usually composed of galvanized or coated steel, serve as the fundamental material for producing robust and top-notch roofing panels. Initially, the steel coils undergo a sequence of operations in a production facility. These operations involve flattening, cleaning, and shaping the coils to achieve the desired dimensions and profiles for the roofing panels. This process guarantees that the steel coils possess uniform thickness and are devoid of any impurities or flaws that could compromise the final product's integrity. Once the steel coils are prepared, they are fed into a roll forming machine. In this machine, the coils are gradually bent and shaped into the specific design and size required for the roofing panels. The roll forming process imparts the panels with their distinct corrugated or standing seam profiles, which enhance their strength and ability to withstand various weather conditions. After the roll forming process, the steel coils are divided into individual roofing panels of the desired length. These panels then undergo further processing to incorporate additional features, such as coatings or finishes, to enhance protection against corrosion and improve aesthetic appeal. Protective layers, such as zinc or paint, are often applied to the steel coils to enhance their resistance to rust, UV rays, and other environmental factors. Lastly, the roofing panels are packaged and transported to construction sites or distributors for installation. The utilization of steel coils in the production of roofing panels ensures that the final product is sturdy, long-lasting, and capable of withstanding heavy loads, strong winds, and other external forces. Steel is renowned for its high tensile strength, making it an ideal material for creating durable roofing panels. In conclusion, steel coils play a vital role in the production of roofing panels. Through a series of manufacturing processes, they are transformed into the desired dimensions and profiles, ensuring consistency and quality. The resulting roofing panels are not only visually pleasing but also highly resilient, providing superior protection and longevity for buildings.

Q: How are steel coils inspected for surface finish using profilometry?: Steel coils are inspected for surface finish using profilometry by measuring the surface topography using a profilometer. The profilometer scans the surface of the steel coil and records the deviations from the ideal surface. This data is then used to determine the roughness, waviness, and other surface parameters of the steel coil, providing a quantitative assessment of its surface finish quality.

Q: Can steel coils be coated with barcodes?: Yes, steel coils can be coated with barcodes. Barcodes can be printed or attached onto the surface of steel coils, allowing for easy identification, tracking, and inventory management.

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