hot rolled steel coil DIN 17100 in good Quality
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 30 m.t.
- Supply Capability:
- 500000 m.t./month
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Description:
Hot-Rolled Steel Sheets and Coils are applied to a wide range of uses such as automobile, electrical appliance, m achinery manufacturing, container manufacturing, shipbuilding, bridge, pipeline, and receive high acclaim from our customers for its excellent quality.
Specification
Product: | Hot Rolled Steel Coils/Sheets |
Material: | Q195,Q235,A36,SS400,S235JR,Q345,ST37-2, CCSB etc |
Standard : | JIS G3002 GB/T251B |
Technique: | hot rolled |
Thickness | 1.2mm to 200mm |
Tolerance of thickness: | :+/-0.03mm |
Width: | 750mm-2000mm |
Tolerance of width: | :+/-5.00mm (aiming to +/-2.00mm) |
Normal width: | 914mm, 1000mm, 1200mm, 1219mm, 1250mm,1500mm |
Length: | According to requirement |
Coil ID: | 508mm-610mm |
Coil Weight: | 10-25 Metric Tons |
Surface: | Black, Chromate, fingerprint resistant treatment, slight oiled or non-oiled, dry |
Port of Loading: | Tianjin/Shanghai port |
Packaging Details: | Standard export packing or according to the clients required |
Delivery Time | Within 30 days after received 30% deposit or workable L/C |
Payment Terms: | L/C,T/T |
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We can ensure that stable quality standards are maintained, strictly meeting both market requirements and customers’ expectations. Our products enjoy an excellent reputation and have been exported to Europe, South-America, the Middle-East, Southeast-Asia, Africa and Russia etc.. We sincerely hope to establish good and long-term business relationship with your esteemed company.
- Q: How are steel coils used in the manufacturing of telecommunications equipment?
- Steel coils are used in the manufacturing of telecommunications equipment for various purposes. They are often used to create the framework and structure of the equipment, providing stability and support. Additionally, steel coils can be used for manufacturing components such as brackets, mounts, and enclosures, ensuring durability and protection for the sensitive electronic components inside the equipment.
- Q: How are steel coils welded together?
- Steel coils can be welded together using various methods, depending on the specific requirements and the type of steel being used. One common method is the use of electric resistance welding (ERW), where an electric current is passed through the steel coils to generate heat. This heat melts the edges of the coils, and pressure is applied to join them together. ERW is a quick and cost-effective method for welding steel coils. Another method is high-frequency induction welding (HFIW), which is commonly used for thinner steel coils. In this process, an induction coil is used to generate an alternating magnetic field, which induces an electric current in the steel coils. The resistance of the coils to this electric current generates heat, causing the edges to melt and form a weld. For thicker and heavier steel coils, submerged arc welding (SAW) is often employed. This method involves the use of a granular flux and a continuous electrode, which is fed into the weld area. The flux melts, creating a protective shield for the weld pool, and the electrode melts to form the weld. SAW is a robust and efficient method for welding steel coils. Additionally, laser welding and gas metal arc welding (GMAW) can also be used to weld steel coils. Laser welding offers high precision and speed, while GMAW, also known as MIG welding, uses an electric arc between a consumable wire electrode and the steel coils to create a weld. Regardless of the welding method used, the key factors for successful welding of steel coils are proper preparation of the edges, maintaining the appropriate heat and pressure levels, and ensuring the correct welding technique is employed.
- Q: What are the dimensions of steel coils used in the storage tank industry?
- Steel coils used in the storage tank industry come in various dimensions, depending on the specific requirements of the tank being manufactured. Generally, these coils are available in different sizes and thicknesses. The width of the steel coils can range from approximately 600 millimeters to 2,400 millimeters. Similarly, the length can vary from a few meters to tens of meters. The thickness of the coils can also differ, typically ranging from 1.5 millimeters to 10 millimeters or more. Factors such as the size and capacity of the storage tank, the material being stored, and the structural requirements of the tank determine these dimensions. Consequently, the tank manufacturer or designer would determine the specific dimensions for a given storage tank project, following industry standards and project specifications.
- Q: What are the environmental considerations associated with steel coil production?
- The environmental considerations associated with steel coil production include the extraction of raw materials, such as iron ore and coal, which can lead to habitat destruction and air/water pollution. The manufacturing process involves energy-intensive operations and emissions of greenhouse gases, contributing to climate change. Waste generated during production, such as slag and dust, can also have negative impacts on the environment if not properly managed. Additionally, the transportation of steel coils over long distances can result in carbon emissions and increase the overall environmental footprint of the product.
- Q: What are the common size limitations for steel coils?
- The common size limitations for steel coils vary depending on the specific requirements of the industry or application. However, there are some general size limitations that are commonly followed in the steel manufacturing and distribution industry. The width of steel coils typically ranges from as narrow as 0.25 inches (6.35 mm) to as wide as 72 inches (1828.8 mm). This wide range allows for versatility in various applications, from automotive parts to construction materials. The thickness of steel coils can also vary significantly, usually ranging from 0.006 inches (0.15 mm) to 0.5 inches (12.7 mm). Thinner coils are often used in applications that require lighter weight and flexibility, while thicker coils are commonly utilized in heavy-duty applications that demand strength and durability. The weight of steel coils is another factor to consider, especially for transportation and handling purposes. Typically, steel coils can weigh anywhere from a few hundred pounds to several tons. The weight limitations are dependent on factors such as the size of the coil, the steel grade, and the equipment used for transportation and storage. Furthermore, the outer diameter of steel coils can also have limitations. It usually ranges from 24 inches (609.6 mm) to 72 inches (1828.8 mm). The inner diameter, on the other hand, can vary from 16 inches (406.4 mm) to 24 inches (609.6 mm). These dimensions are critical for ensuring compatibility with processing equipment and storage racks. It is important to note that these size limitations are not fixed and can be customized based on specific requirements. Steel manufacturers and distributors often work closely with their customers to determine the optimal size and dimensions of the coils to meet their specific needs and ensure efficient handling and processing.
- Q: Can steel coils be recycled?
- Yes, steel coils can be recycled. Steel is a highly recyclable material, and the recycling process for steel coils involves melting them down and reshaping them into new products. This helps conserve natural resources, reduce energy consumption, and minimize waste.
- Q: How are steel coils used in the production of steel framing systems?
- Steel coils are used in the production of steel framing systems as they are the primary raw material. These coils are unwound and fed into a roll forming machine, where they are shaped into the desired profiles and lengths. The steel framing systems, including studs, tracks, and joists, are then fabricated from these formed coils, providing structural support and stability to buildings and structures.
- Q: How do steel coils perform in corrosive environments?
- Steel coils typically perform well in corrosive environments due to their inherent resistance to corrosion. This is primarily because steel is an alloy composed of iron and other elements, such as carbon, which provides it with a protective layer known as a passive film. This passive film acts as a barrier between the steel surface and the corrosive elements, preventing direct contact and thus minimizing the risk of corrosion. In addition to the passive film, steel coils can also be coated with various protective coatings to enhance their resistance against corrosion. These coatings, such as zinc or epoxy, provide an additional layer of protection and further extend the lifespan of the steel coils when exposed to corrosive environments. However, it is important to note that the performance of steel coils in corrosive environments can still be influenced by factors such as the specific corrosive agent, exposure duration, and the presence of other contaminants. In highly aggressive environments, such as those with high humidity, saltwater exposure, or acidic chemicals, the protective layers on steel coils may deteriorate over time, leading to potential corrosion. To ensure optimal performance in corrosive environments, it is advisable to select steel coils with corrosion-resistant properties, such as stainless steel or galvanized steel. Regular maintenance and inspections are also crucial to identify any signs of corrosion early on and take appropriate measures to prevent further damage. Overall, steel coils offer good resistance to corrosion in most environments, but the severity of the corrosive conditions can ultimately impact their performance.
- Q: What are the different methods of pickling steel coils?
- There are several methods of pickling steel coils, including acid pickling, electrolytic pickling, and mechanical pickling. Acid pickling involves immersing the coils in a bath of acid, typically hydrochloric or sulfuric acid, to remove any scale or impurities on the surface. Electrolytic pickling uses an electric current to dissolve the scale and impurities from the steel coils. Mechanical pickling involves using abrasive materials or mechanical brushes to physically remove the scale and impurities from the surface of the coils.
- Q: How are steel coils inspected for surface defects using non-destructive testing methods?
- Steel coils are inspected for surface defects using non-destructive testing (NDT) methods to ensure their quality and integrity. There are several common NDT methods employed in this process. One of the most widely used methods is visual inspection, where trained inspectors visually examine the surface of the steel coils for any visible defects such as scratches, cracks, pits, or corrosion. This method is relatively simple and cost-effective but is limited to detecting only surface-level defects. Another commonly used NDT method is magnetic particle testing (MT). This method utilizes the principles of magnetism to identify surface and near-surface defects in ferromagnetic materials like steel. A magnetic field is applied to the steel coil, and iron particles are applied to the surface. If there is a defect, such as a crack or discontinuity, the iron particles will concentrate around it, making the defect visible to the inspector. Liquid penetrant testing (PT) is another NDT method used to inspect steel coils for surface defects. In this method, a liquid penetrant is applied to the surface of the coil. The penetrant is drawn into any surface defects by capillary action. After a certain period, excess penetrant is removed, and a developer is applied. The developer draws out the penetrant from any defects, making them visible to the inspector. Ultrasonic testing (UT) is a widely used NDT method that can detect both surface and subsurface defects in steel coils. High-frequency sound waves are transmitted into the steel coil, and the reflected waves are analyzed to identify any abnormalities. This method can detect defects such as cracks, inclusions, and voids that may not be visible to the naked eye. Additionally, eddy current testing (ECT) is another NDT method used for inspecting steel coils. This method utilizes electromagnetic induction to detect surface and near-surface defects. A coil carrying an alternating current is placed near the surface of the coil being inspected. Any changes in the coil's electrical conductivity caused by surface defects are detected and analyzed, allowing the inspector to identify and evaluate the severity of the defects. In conclusion, steel coils are inspected for surface defects using various non-destructive testing methods such as visual inspection, magnetic particle testing, liquid penetrant testing, ultrasonic testing, and eddy current testing. These methods ensure the quality and integrity of the steel coils before they are used in various applications.
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hot rolled steel coil DIN 17100 in good Quality
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 30 m.t.
- Supply Capability:
- 500000 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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