Steel Coil Manufacturer Colour Coated Steel Coils

Steel Coil Manufacturer Colour Coated Steel Coils System 1

Steel Coil Manufacturer Colour Coated Steel Coils System 2

Steel Coil Manufacturer Colour Coated Steel Coils

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 30 m.t.

Supply Capability:: 10000 m.t./month

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Quick Details

Standard:	AISI,ASTM,BS,DIN,GB,JIS	Grade:	SGCC	Thickness:	0.12~1.2mm
Place of Origin:	Shandong China (Mainland)	Brand Name:	CNBM	Model Number:	CGCC
Type:	Steel Coil	Technique:	Cold Rolled	Surface Treatment:	Coated
Application:	Boiler Plate	Special Use:	Wear Resistant Steel	Width:	600~1250mm
Length:	as your requirements	Color:	all RAL colors or customers samples color	Zinc coating:	40-275g/m2
Packaging:	Standard export seaworthy packing	Paint:	PE, PVDF, SMP, HDP	Coil weight:	3-8mt
Coil ID:	508mm,610mm	Payment:	30% deposit, 70% by T/T against B/L copy; or by L/C	Back coating thickness:	5-7um
Top coating thickness:	20-25um	Product Name:	Prepainted galvanized steel

Packaging & Delivery

Packaging Detail:	Standard export packing, 4 eye bands and 4 circumferential bands in steel, galvanized metal fluted rings on inner and outer edges, galvanized metal and waterproof paper wall protection disk, galvanized metal and waterproof paper around circumference and bore protection
Delivery Detail:	25 Days after 30% deposit or L/C at sight

Specifications

PPGI/Color Coated Steel Plates
Thickness: 0.12mm-1.2mm
Width: 600mm-1250mm
Length: customized
Grade:CGCC, DX51D

Product Description

PPGI Color Coated Steel Sheet in Coil

With the sophisticated equipment, you can get the best quality with most competitiveprice PPGI as below.

Detailed Product Description of prepainted steel coil

Our prepainted steel coil production line imported from America AB Corp and British CT Corp,it can be regarded as one of the most advanced unit in China. Our prepainted steel coil have outstanding formability,superb durability,good adhesion,wide availablity.Quick and reliable delivery for both small and large orders is our promise.

Our factory specialing in the export of the prepainted steel coil PPGI,Color coated steel coil,PPGI ,prepainted steel coil,color coated steel coil,stainless steel and other building materials.And our company trading here,exporting prepainted steel coil PPGI with good qulity and low price in China

Our factory prepainted steel coil production line in Tianjin in 2008,and many factories before 2010 have not yet been established,We have a proven technology,and we ensure quality

Painting

Category of Painting	Item	Code
	Polyester	PE
	High-durability polyester	HDP
	Silicon modified polyesters	SMP
	Polyvinylidene fluoride	PVDF
	Easy-Cleaning	—
Painting Thickness	Top side: 20+5microns;
	Bottom side: 5~7microns.
Color System	Produce according to RAL Color System or as per buyer’s color sample.
Painting structure	Top surface	Bottom surface
	Primer coating	No coating	1/0
	Primer coating	Primer coating	1/1
	Primer coating + Finish coating	No coating	2/0
	Primer coating + Finish coating	Primer coating or single back coating	2/1
	Primer coating + Finish coating	Primer coating + Finish back coating	2/2

Q:What are the different methods of skin pass rolling for steel coils?: There are several methods of skin pass rolling for steel coils, each with its own unique characteristics and benefits. Some of the most common methods include: 1. Dry Skin Pass: In this method, the steel coil is passed through a set of rolls without the application of any lubricant or coolant. This helps to improve the surface finish of the steel by reducing the thickness variations and imparting a smoother texture. 2. Wet Skin Pass: This method involves the application of a water-based emulsion or coolant during the skin pass rolling process. The coolant helps to reduce friction and heat generated during rolling, resulting in improved surface quality and reduced risk of surface defects. 3. Electrolytic Skin Pass: This technique utilizes an electrolytic solution during skin pass rolling. The steel coil is immersed in the solution, and an electric current is applied to the coil, resulting in controlled surface etching. This method is particularly effective in improving surface cleanliness and removing oxide scale. 4. Temper Mill Skin Pass: This method combines skin pass rolling with a tempering process. The steel coil is rolled through a series of rolls, followed by a heating and cooling process to achieve the desired mechanical properties and surface finish. This method is commonly used for high-strength and automotive-grade steel coils. 5. Tension Leveling: In this method, the steel coil is passed through a series of rolls under high tension. This elongates the steel and helps to reduce residual stresses and shape defects, resulting in improved flatness and dimensional stability. It is important to note that the choice of skin pass rolling method depends on factors such as the desired surface finish, required mechanical properties, and the type of steel being processed. Each method has its own advantages and limitations, and manufacturers typically select the most appropriate method based on their specific requirements.

Q:How are steel coils inspected for coil set?: Steel coils are inspected for coil set using a variety of methods and equipment. Coil set refers to the curvature or shape of the coil, which can impact its performance and usability in various applications. One common method of inspecting steel coils for coil set is through visual inspection. Experienced operators or inspectors carefully examine the coils for any visible deformities or irregularities in their shape. This can be done by unrolling a portion of the coil and checking for any signs of buckling, twisting, or unevenness. Visual inspection is a straightforward and cost-effective way to identify obvious coil set issues. In addition to visual inspection, more advanced techniques are also used to accurately measure and quantify coil set. One such method is the use of a straight edge or a template. The straight edge is placed along the length or width of the unrolled portion of the coil, and any gaps or deviations from the straight edge indicate the presence of coil set. This method provides a more precise measurement of the extent and severity of the coil set. Another common technique is the use of specialized tools such as a non-contact laser measurement system. This system utilizes lasers to project a line on the surface of the coil and measures the distance between the line and the coil. Any variations in this distance indicate the presence of coil set. This method is highly accurate and provides detailed data about the coil's shape and curvature. Other methods may include using mechanical devices such as rollers or tensioners to unroll and measure the coil's shape. These devices apply controlled pressure to the coil to straighten it out, and any resistance or deviations encountered during the process are indications of coil set. Overall, the inspection of steel coils for coil set involves a combination of visual examination and precise measurement techniques. These methods help identify and quantify any deformities or irregularities in the coil's shape, allowing manufacturers and customers to make informed decisions about the usability and quality of the steel coils.

Q:I would like to buy a new cold steel recon 1 folding knife. My concern is the knife is made in Taiwan, will the quality of blade/overall make is lower quality compare with those made in US/JAPAN? The plan is use as an EDC, any good suggestion with similar style? Most important to me is reliability, 2)sharpness, 3) maintance than 4)cost. Anyone can point me into right direction? Please share, Thanks in advance.: Cold okorder /

Q:What are the common storage defects in steel coils?: Some common storage defects in steel coils include: 1. Staining or discoloration: If steel coils are not stored properly, they can be exposed to moisture or chemicals, leading to staining or discoloration. This can affect the appearance and quality of the steel. 2. Rust or corrosion: Steel is susceptible to rust and corrosion if it comes into contact with moisture or is stored in a humid environment. Rust can weaken the steel and compromise its integrity. 3. Coil deformation: Improper stacking or handling of steel coils can result in deformation or bending. This can occur when coils are stored on an uneven surface or subjected to excessive pressure or weight. 4. Surface damage: Steel coils can develop surface scratches, dents, or abrasions if they are mishandled during storage. This can be caused by improper stacking, handling, or transport of the coils. 5. Edge damage: If steel coils are not properly protected or secured during storage, the edges can become damaged. This can include chipping, cracking, or bending of the edges. Edge damage can affect the usability and safety of the steel coils. 6. Coil slippage: When steel coils are not securely stored or stacked, they can slip or roll off, causing damage to the coils themselves and potentially causing harm to nearby personnel or equipment. 7. Contamination: Steel coils can become contaminated if they are stored near or come into contact with substances such as dirt, oil, grease, or chemicals. Contaminants can affect the quality and performance of the steel. 8. Coil nesting: Inadequate spacing or stacking of steel coils can result in coil nesting, where one coil becomes embedded or nested within another. This can lead to damage to the coils, making them difficult to separate and use. To prevent these common storage defects, proper handling, storage, and protection measures should be implemented. This includes storing steel coils in a dry, well-ventilated area away from moisture and chemicals, using appropriate stacking and support structures, and providing adequate protection against impacts and contaminants. Regular inspections and maintenance should also be conducted to identify and address any potential defects or issues.

Q:What are the different methods of cutting steel coils into sheets?: There are several methods of cutting steel coils into sheets, including shearing, slitting, and laser cutting. Shearing involves a straight blade that cuts through the coil to create individual sheets. Slitting uses circular knives to cut the coil into narrower strips, which are then further processed into sheets. Laser cutting uses a high-powered laser beam to precisely cut the coil into sheets, providing more flexibility in terms of shapes and sizes.

Q:What are the challenges faced in the recycling of steel coils?: There are several challenges faced in the recycling of steel coils. Firstly, one of the main challenges is the collection and sorting process. Steel coils are often used in large-scale industries and construction projects, making it difficult to collect and transport them for recycling. Additionally, steel coils may be mixed with other materials, such as plastic or wood, which further complicates the sorting process. Another challenge is the size and weight of steel coils. Steel is a heavy material, and coils can be quite large, making it challenging to handle and process them efficiently. Specialized equipment and machinery may be required to move and separate the coils, which can add to the cost and complexity of the recycling process. Furthermore, the quality of steel coils can vary, which can impact their recyclability. Steel coils may have impurities or contaminants, such as oil or paint, which need to be removed before recycling. These impurities can affect the quality and integrity of the recycled steel, making it less desirable for certain applications. Additionally, the energy and resources required for recycling steel coils is a challenge. The recycling process involves melting down the steel, which requires a significant amount of energy. Furthermore, the transportation and processing of steel coils also consume resources and contribute to carbon emissions, making the recycling process less environmentally friendly. Lastly, the market demand for recycled steel coils can fluctuate, which can impact the viability of the recycling industry. The demand for steel products can vary depending on economic conditions and industry trends. This can make it difficult for recyclers to find buyers for their recycled steel coils, potentially leading to stockpiling or disposal challenges. Overall, while recycling steel coils offers environmental benefits and conservation of resources, there are several challenges that need to be addressed to ensure its successful implementation. These challenges include collection and sorting, handling and processing, quality control, energy and resource consumption, as well as market demand.

Q:What are the different methods of surface inspection for steel coils?: Steel coils can undergo surface inspection using various methods, each with its advantages and limitations. Among the commonly used techniques are: 1. Visual Inspection: Inspectors visually examine the steel coil surface for defects like scratches, dents, or discoloration. Though subjective and reliant on inspector expertise, this method proves cost-effective for detecting obvious defects. 2. Magnetic Particle Inspection (MPI): This method involves applying a magnetic field to the coil and then iron particles on the surface. Disruptions in the magnetic field caused by defects or cracks gather the particles, making the flaws visible. MPI effectively detects surface cracks and defects not easily seen by the naked eye. 3. Eddy Current Testing (ECT): ECT, a non-destructive testing method, employs electromagnetic induction to identify surface defects in steel coils. A probe with a coil generates an alternating magnetic field near the coil surface. Changes in electrical conductivity or magnetic permeability due to surface defects lead to a change in the induced current, which can be analyzed. ECT successfully identifies cracks, corrosion, and other surface irregularities. 4. Ultrasonic Testing (UT): High-frequency sound waves are used to examine both the surface and subsurface of steel coils. A transducer sends ultrasonic waves into the steel, and the reflected waves are analyzed to detect material changes or anomalies. UT effectively identifies cracks, delaminations, or voids within the coil, providing valuable insights into the steel's structural integrity. 5. Optical Inspection: This technique utilizes advanced imaging techniques like cameras or laser scanners to capture high-resolution images of the coil surface. These images are then analyzed for defects such as scratches, pits, or irregularities. Optical inspection provides detailed information and is often used alongside other methods for a comprehensive inspection. It is important to note that each method has its limitations and may be more suitable for specific defect types or surface conditions. Therefore, a combination of these techniques is often employed to ensure a thorough and accurate inspection of steel coils.

Q:What is the lifespan of a steel coil?: The lifespan of a steel coil can vary depending on various factors such as the quality of the steel, the conditions it is exposed to, and how it is properly maintained. On average, a well-maintained steel coil can last anywhere from 10 to 30 years.

Q:What are the different coil leveling methods used for steel coils?: There are several coil leveling methods used for steel coils, each with its own benefits and limitations. Here are some of the most common methods: 1. Roller Leveling: In this method, steel coils are passed through a series of rollers that apply pressure to flatten and level the coils. Roller leveling is effective in reducing coil crown or center buckle, and it can also help eliminate coil memory. However, it may not be suitable for coils with severe shape defects or variations. 2. Stretch Leveling: This method involves stretching the steel coils to remove any shape defects. The coils are passed through a series of gripper heads that hold the edges of the coil while it is stretched. Stretch leveling is particularly effective in correcting crossbow and edge wave defects. However, it may cause some elongation and yield loss in the material. 3. Temper Pass: This method involves passing the steel coils through a series of temper mill stands, where they are subjected to tension and compression forces. Temper pass leveling helps improve flatness and remove coil memory. It is commonly used for thinner gauge steel coils but may not be suitable for thicker coils. 4. Corrective Leveling: This method is used for coils with severe shape defects. It involves selectively removing material from specific areas of the coil to correct the shape. Corrective leveling is a labor-intensive process that requires skilled operators, but it can effectively eliminate shape defects and improve flatness. 5. Tension Leveling: In this method, the steel coils are subjected to tension forces while being passed through a series of pinch rolls. Tension leveling helps remove coil memory and improve flatness. It is particularly effective for coils with edge wave defects. However, it may cause some elongation and yield loss in the material. These are just a few of the coil leveling methods used for steel coils. The choice of method depends on the specific requirements of the steel coils and the desired flatness results. It is important to consider factors such as material thickness, shape defects, and production capacity when selecting the appropriate leveling method.

Q:How do steel coils contribute to the energy storage industry?: Steel coils contribute to the energy storage industry in several ways. Firstly, steel coils are used in the manufacturing of energy storage systems such as batteries. The steel casing provides structural support and protection to the battery cells, ensuring their safety and longevity. Without steel coils, the batteries would be more vulnerable to damage and would not be able to function effectively. Additionally, steel coils are essential in the construction of flywheels, which are another form of energy storage technology. Flywheels store energy by spinning a rotor at high speeds and then releasing the stored energy when needed. Steel coils are used to create the rotor, which needs to be strong, durable, and capable of withstanding the high rotational forces. The magnetic properties of steel also help to enhance the efficiency of energy transfer within the flywheel system. Furthermore, steel coils are used in the production of compressed air energy storage (CAES) systems. CAES systems store energy by compressing air and then releasing it to generate electricity when required. Steel coils are utilized in the construction of the air storage chamber, ensuring its integrity and preventing any leakage or damage. The robustness of steel coils makes them ideal for withstanding the high pressures involved in the compression process. In summary, steel coils play a crucial role in the energy storage industry by providing structural support, durability, and protection to various energy storage technologies. Whether it is in batteries, flywheels, or CAES systems, steel coils contribute to the efficient and safe storage of energy, helping to promote the development and adoption of sustainable energy solutions.

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