excenllent cold rolled steel coil in good Quality
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 30 m.t.
- Supply Capability:
- 5000000 m.t./month
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Specification
The raw material of cold rolled steel coil/sheet is high quality hot rolled product, and after pickling, kinds of new technology and new process of global cold rolling production have been applied. Therefore the manufacturing, home appliance, automobile etc.
COLD ROLLED STEEL | |
Thicknenss | 0.10mm-4.00mm |
Width | 600mm-2000mm |
Sheets length | 1200-6000mm |
Coil inner diameter | 508-610mm |
Surface treatement | matt finish/bright finish,oiling/dry, bright anneal/black anneal |
Coil weight | 3-5t |
Package & Delivery
Package details: Standardseaworthy packing for international delivery.
Delivery: According to theexact quantity of your order.
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.
Cold rolled steel is widely used in electronic production,Motorbike,Automobile,Stamping structure;Cold bent Sreel;Saw flake and etc;which is a good substitute for cold Roller and Cold plate in many field.
- Q:What are the different types of steel coil surface defects?
- There are several different types of steel coil surface defects that can occur during the manufacturing or handling process. Some of the common types include: 1. Rust: Rust is a common surface defect that occurs when the steel coil is exposed to moisture or oxygen. It appears as a reddish-brown discoloration on the surface of the coil. 2. Scratches: Scratches are superficial marks that can occur during handling or transportation of the steel coil. They can vary in depth and severity, ranging from light surface scratches to deep gouges. 3. Stains: Stains are another type of surface defect that can occur due to exposure to chemicals or other substances. They can appear as discolored patches on the surface of the coil, and may be difficult to remove. 4. Roll marks: Roll marks are impressions or indentations that can occur during the rolling process. They are caused by uneven pressure or misalignment of the rolls, and can appear as lines or patterns on the surface of the coil. 5. Edge wave: Edge wave is a defect that occurs when the edges of the coil are not perfectly flat. It can cause the edges to appear wavy or uneven, and may affect the overall appearance and performance of the coil. 6. Oil spots: Oil spots are surface defects that occur when oil or lubricants used in the manufacturing process are not properly removed. They can appear as dark spots or patches on the surface of the coil, and may affect the adhesion of coatings or paints. 7. Pitting: Pitting is a defect that appears as small, shallow depressions or pits on the surface of the coil. It can be caused by factors such as corrosion, uneven cooling, or impurities in the steel. 8. Holes: Holes are more severe surface defects that can occur due to a variety of reasons, such as corrosion, mechanical damage, or manufacturing errors. They can range in size and can significantly affect the structural integrity of the coil. It is important to address these surface defects promptly to ensure the quality and performance of the steel coil. Regular inspections, proper handling, and appropriate surface treatments can help minimize the occurrence of these defects.
- Q:How do steel coil manufacturers handle product recalls?
- Steel coil manufacturers handle product recalls by following a systematic process. Firstly, they identify the specific batches or lots of steel coils that need to be recalled based on quality or safety concerns. Then, they promptly notify their distributors, customers, and regulatory authorities about the recall, providing all relevant information. The manufacturers work closely with these stakeholders to ensure that the affected coils are returned or replaced. Additionally, they investigate and address the root cause of the issue to prevent similar recalls in the future, implementing necessary quality control measures and process improvements.
- Q:How do steel coils contribute to the automotive industry?
- The automotive industry heavily relies on steel coils to manufacture different components and structures for vehicles. These coils are made from high-quality steel and undergo a series of processes, such as hot rolling, cold rolling, and annealing, to achieve the desired properties. One of the main applications of steel coils in the automotive industry is for producing body panels and frames. The strength and durability of steel make it an ideal material for these purposes, providing structural integrity and protection to the vehicle. Through a stamping process, steel coils are transformed into sheets, allowing manufacturers to create intricate shapes and designs for various vehicle models. Furthermore, steel coils are also utilized in the production of suspension systems, including springs and shock absorbers. The elasticity and resilience of steel enable these components to withstand the constant impact and weight of the vehicle, ensuring optimal performance and comfort for the driver and passengers. In addition, engine components like crankshafts, camshafts, and cylinder heads are manufactured using steel coils. These components require the strength and thermal resistance that steel provides, ensuring the efficient operation and longevity of the engine. Moreover, steel coils play a crucial role in the production of exhaust systems, which are essential for reducing emissions and noise levels. Steel's resistance to heat and corrosion make it an excellent material choice for exhaust pipes, mufflers, and catalytic converters, ensuring their durability and functionality. Overall, steel coils are indispensable in the automotive industry as they contribute to the manufacturing of various components and structures that are vital for the performance, safety, and longevity of vehicles. The high strength, durability, and versatility of steel make it the preferred material choice, enabling manufacturers to create reliable and efficient automobiles.
- Q:does anyone out there know where to get a good deal on a pedal steel guitar? i am from northern indiana and i'm willing to travel some if i have to.i am just getting into pedal steel guitar and i really don't have any idea what i need. i don't know how to play a guitar (i do know how to play the piano and the drums) at all but i want to learn to play the pedal stell guitar and i can't do that without getting one first so, if anyone can help me out i would greatly appreciate it! :o)
- I agree with everything that Lester said. Another thought is to consider starting on a lap steel guitar rather than a pedal steel - its related, a little easier to learn on, and less expensive. Once you get proficient on the lap steel, you can move up to the pedal steel. Good luck!
- Q:How are steel coils processed before being used in manufacturing?
- Steel coils undergo several processing steps before they are used in manufacturing. The first step is to uncoil the steel coil, which involves unwinding it from a large spool. This is usually done using a machine called a decoiler. Once the coil is uncoiled, it is inspected for any defects or damages. After inspection, the steel coil goes through a process called leveling. This process involves passing the coil through a series of rollers to remove any unevenness or waviness in the steel. Leveling ensures that the coil has a uniform thickness and flat surface, which is crucial for further processing. The next step is to clean the steel coil to remove any impurities, such as rust, oil, or dirt. This is usually done by running the coil through a cleaning line, where it is treated with chemicals and water sprays. The cleaning process ensures that the surface of the coil is free from contaminants, which can affect the quality of the final product. Once the coil is cleaned, it may undergo additional processes depending on the specific requirements of the manufacturing process. For example, the coil may be annealed to improve its ductility and reduce its hardness. Annealing involves heating the coil to a specific temperature and then slowly cooling it. This process helps to relieve internal stresses and improve the steel's mechanical properties. After all the necessary processing steps are completed, the steel coil is ready to be used in manufacturing. It can be further processed into various shapes and forms, such as sheets, plates, or strips, depending on the specific requirements of the manufacturing process. These processed steel coils are then used in a wide range of industries, including automotive, construction, appliances, and machinery.
- Q:What are the common coil thickness and width combinations available for steel coils?
- The common coil thickness and width combinations available for steel coils vary based on industry standards and specific requirements. However, some commonly available combinations include coil thicknesses ranging from 0.5mm to 3mm and coil widths ranging from 600mm to 1500mm. Ultimately, the specific thickness and width combination for steel coils will depend on the intended application and manufacturing capabilities.
- Q:How are steel coils coated for color and aesthetics?
- Color and aesthetics can be added to steel coils through a process known as coil coating. This process involves applying a layer of paint or coating material to the surface of the steel coil in order to enhance its appearance and protect it against corrosion. To start the coil coating process, the steel surface is thoroughly cleaned and pre-treated. This step ensures that the surface is free from any contaminants and provides a suitable base for the coating to adhere to. The pre-treatment process may include cleaning, degreasing, and chemical treatment to improve the adhesion and durability of the coating. Once the surface is prepared, the coil is fed through a continuous coating line. In this line, the coating material, usually a liquid paint, is applied to both sides of the steel coil using various methods such as roll coating, spray coating, or electrostatic coating. The coating material is carefully chosen to achieve the desired color, texture, and durability. After the coating is applied, the coil undergoes a curing process. During this process, the coil is heated to allow the coating material to dry and bond to the steel surface. This ensures a strong and long-lasting finish that can withstand exposure to different environmental conditions. Moreover, coil coating technology allows for additional treatments to enhance the aesthetics of the steel coil. For instance, the coil can undergo embossing, where a pattern is pressed onto the surface, creating a textured or three-dimensional appearance. Additionally, other decorative techniques like printing, laminating, or adding metallic effects can be used to achieve specific aesthetic effects. In conclusion, the coil coating process not only adds color and aesthetics to steel coils but also provides a protective layer that increases their lifespan and resistance to corrosion. This makes them suitable for a wide range of applications, including roofing, automotive parts, appliances, and construction materials.
- Q:What are the common transportation defects in steel coils?
- There are several common transportation defects that can occur in steel coils. One of the most common is coil damage caused by improper handling or securing during transportation. This can result in dents, scratches, or even tears in the steel. Another common defect is coil edge damage, which can occur if the coils are not properly protected or if they rub against each other during transit. This can lead to deformation or even breakage of the coil edges. Additionally, coil shifting is another common defect, which happens when the coils are not properly secured or braced, causing them to move and shift during transportation. This can result in misalignment or damage to the coils. Finally, coil corrosion is a common defect that can occur if the coils are exposed to moisture or other corrosive elements during transportation. This can lead to rust and deterioration of the steel. Overall, proper handling, securing, and protection measures are crucial in order to prevent these common transportation defects in steel coils.
- Q:How are steel coils used in the production of steel beams?
- Steel coils are used in the production of steel beams by being unwound and fed through a series of rollers and machines. These coils are transformed into flat sheets of steel, which are then cut and shaped to create the desired dimensions and specifications of steel beams.
- 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.
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excenllent cold rolled steel coil in good Quality
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 30 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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