hot / cold rolled steel coil / sheet in CNBM
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 50 m.t.
- Supply Capability:
- 5000000 m.t./month
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Characteristics
1. Commercial quality suitable for bending fabrication and simple forming; this is the type in greatest demand.
2. Drawing quality second only to that of SPCEN. Excellent uniformity.
3. Deep-drawing quality.With metallurgically controlled grain size, it retains its beautiful finish even after being deep-drawn.
4. Extra-low-carbon steel sheets with highest workability
Quality of the goods could be guaranteed. The finished product has a variety of excellent capabilities, such as continuous rolling, degreasing, annealing, skin pass, slitting and cut to length line etc. Along with it many rocessing capability and smooth, flat surface. It’s widely used in outdoor and interior decoration, furnishing
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 inspected for surface defects after processing?
- Steel coils are inspected for surface defects after processing through a visual inspection process. Specially trained inspectors carefully examine the coils for any visible defects such as scratches, dents, or irregularities in the surface. They use advanced lighting techniques and magnification tools to ensure a thorough inspection. Additionally, automated systems may also be employed to detect and flag any defects that may have been missed during the visual inspection.
- Q:How are steel coils processed for slitting or shearing?
- Steel coils are processed for slitting or shearing by first unwinding the coil and then passing it through a set of rotating circular blades. The blades cut the steel coil into narrower strips, which are then either rewound into smaller coils (slitting) or cut into individual sheets (shearing). This process allows for the production of various sizes and shapes of steel products for different applications.
- Q:What are the common defects in steel coil surface finishes?
- Scratches, pits, rust, oil stains, and uneven coating are all common defects that can be found on the surface finishes of steel coils. Scratches are typically caused by mishandling or transportation and can significantly impact both the appearance and performance of the coil. Pits, on the other hand, are small depressions that can be attributed to various factors such as impurities in the steel or incorrect processing techniques. Rust occurs when the coil is exposed to moisture or corrosive environments, and this can compromise the structural integrity of the material. If the coil is not adequately cleaned before or after processing, oil stains may appear, leaving unattractive marks on the surface. Lastly, uneven coating can arise during the application of protective coatings or paints, resulting in varying levels of protection and aesthetics across different areas of the coil. It is crucial to address these defects to ensure the steel coil's quality and durability in its intended applications.
- Q:What are the common coil sizes available for steel coils?
- The steel coil sizes available for different industries and applications vary. However, there are standard sizes commonly used across sectors. These sizes include coil widths of 36 inches, 48 inches, 60 inches, and 72 inches. In terms of coil diameter, the most common sizes range from 20 inches to 24 inches. Furthermore, coil weights can vary greatly depending on the type of steel and its intended use, ranging from a few thousand pounds to tens of thousands of pounds. It is important to note that these sizes can differ among steel manufacturers, so it is advisable to consult the specific supplier or industry standards to determine the available coil sizes for a particular steel product.
- Q:How do steel coils contribute to fire resistance in buildings?
- Steel coils contribute to fire resistance in buildings primarily due to their material properties. Steel is a non-combustible material, meaning it does not burn or contribute to the spread of fire. It has a high melting point, which helps it retain its structural integrity even under high temperatures. Additionally, steel coils are often used as structural elements in building construction, providing strength and stability to the overall structure. This helps prevent the collapse of the building in case of a fire, providing occupants with more time to evacuate safely.
- Q:What is the process of recoiling steel coils?
- To create smaller, more manageable coils, the recoiling of steel coils entails either rewinding or unrolling large steel coils. This operation is typically carried out in steel processing plants or coil service centers. The initial step in the recoiling process involves identifying the appropriate coil for recoiling. Factors such as coil size, weight, and quality are taken into consideration when making this selection. Once the coil has been chosen, it is placed onto a recoiling machine, which is equipped with various mechanisms to facilitate the recoiling process. The recoiling machine consists of a mandrel or drum, around which the coil is wound or unwound. To ensure stability during the recoiling process, the coil is securely fastened onto the mandrel using either mechanical clamps or hydraulic pressure. In the case of rewinding or recoiling a large coil into smaller coils, the machine initiates the process by unwinding the original coil. This is achieved by rotating the mandrel in the opposite direction, causing the coil to gradually unroll. As the coil unwinds, it passes through various straightening and flattening mechanisms, which help ensure that the coils are produced with consistent dimensions and quality. Once the original coil has been completely unwound, the machine commences the rewinding process. The smaller coils are formed by winding the steel strip onto the mandrel in a controlled manner. The speed and tension of the rewinding process are carefully regulated to prevent any damage to the steel strip. Throughout the recoiling process, various quality control measures are implemented to ensure that the produced coils meet the desired specifications. These measures may include monitoring the thickness, width, and surface quality of the steel strip, as well as conducting periodic inspections to identify any defects or irregularities. Upon completion of the rewinding process, the smaller coils are typically removed from the mandrel and prepared for further processing or shipment. This may involve applying protective coatings, labeling, or packaging the coils, depending on their intended use. In conclusion, the recoiling of steel coils involves unwinding large coils, straightening and flattening the steel strip, and rewinding it onto a mandrel to create smaller, more manageable coils. This operation requires specialized machinery and meticulous control to ensure the quality and consistency of the recoiled coils.
- Q:How are steel coils used in the manufacturing of railway bridges?
- Steel coils are used in the manufacturing of railway bridges as they are rolled and shaped into various structural components like beams, girders, and plates. These coils provide the necessary strength, durability, and flexibility required to support heavy loads and withstand the dynamic forces exerted on the bridge.
- Q:How are steel coils used in the food processing industry?
- The food processing industry commonly uses steel coils for various purposes. One primary use is in the production of food packaging materials like cans and containers. These coils are transformed into thin sheets or strips and then shaped and sized for packaging different food products. Steel coils are also utilized in manufacturing equipment and machinery used in food processing plants. This includes crucial machines like conveyors, mixers, and slicers, which enable efficient and automated food processing. Steel's durability and strength make it an ideal material for these types of equipment, as it can withstand heavy usage and maintain its structural integrity. Additionally, steel coils are used in constructing storage and refrigeration facilities within the food processing industry. These coils are transformed into durable and insulated panels that create walls and ceilings in cold rooms, freezers, and warehouses. Steel's excellent thermal properties help maintain the desired temperature and prevent spoilage of perishable food items. Moreover, steel coils are employed in the production of cooking and baking equipment, such as ovens and grills. These coils are transformed into heating elements that provide consistent and efficient heat distribution during the food preparation process. This ensures that food is cooked or baked evenly, resulting in high-quality and delicious products. Overall, steel coils play a crucial role in the food processing industry by providing necessary materials for packaging, equipment, and infrastructure. Their strength, durability, and thermal properties make them a preferred choice for various applications within this industry, ensuring the production of safe and high-quality food products.
- Q:How do steel coils contribute to sustainability in construction?
- Steel coils contribute to sustainability in construction in several ways. Firstly, steel is a highly durable and long-lasting material, which means that structures built using steel coils have a longer lifespan and require fewer repairs and replacements. This reduces the overall environmental impact associated with construction activities. Additionally, steel is a highly recyclable material, with most steel coils containing a significant amount of recycled content. This promotes a circular economy and reduces the demand for new raw materials. Moreover, steel coils are lightweight and versatile, allowing for more efficient transportation and installation, thereby reducing energy consumption and emissions during construction. Overall, the use of steel coils in construction promotes sustainability by offering durability, recyclability, and energy efficiency.
- Q:How are steel coils used in the production of electrical devices?
- The production of electrical devices heavily relies on steel coils. These coils, typically made from high-quality steel, are precisely wound into a circular shape. They have a crucial function in various electrical devices, including transformers, motors, generators, and inductors. Transformers, for instance, heavily rely on steel coils. These devices are essential for adjusting voltage levels in electrical circuits. They consist of two separate coils, the primary and secondary coils, which are wound around a magnetic core. The steel coil plays a vital role in providing stability and support to the windings, ensuring proper alignment and preventing any deformation. Moreover, the high magnetic permeability of steel helps enhance the efficiency of energy transfer between the coils. In motors and generators, steel coils are utilized to create magnetic fields that either generate mechanical energy or convert it into electrical energy. These coils are wound around an armature or rotor, which rotates within a magnetic field created by a stator. As the current flows through the coils, a magnetic field is produced, resulting in the rotation of the armature or the generation of electrical power. Steel coils are also used in inductors, another type of electrical device. Inductors consist of a coil of wire wound around a core material, often made of steel. Steel coils in inductors help increase the inductance, which measures the device's ability to store energy in a magnetic field. By storing energy in this manner, inductors can regulate currents, filter out noise, and provide stability to electrical circuits. All in all, steel coils are indispensable in the production of electrical devices. They provide stability, support, and enhance the necessary magnetic properties for efficient functioning. Without steel coils, the performance and reliability of electrical devices like transformers, motors, generators, and inductors would be greatly compromised.
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hot / cold rolled steel coil / sheet in CNBM
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 50 m.t.
- Supply Capability:
- 5000000 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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