Prepainted Galvanized Steel Coil/Hot Dipped Galvanized Steel Coil
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 1000 m.t./month
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Pre-painted Steel Coil
Product Description
Commodity: Hot dipped galvanized steel coil
Size: Thickness: 0.20mm to 1.2mm; Width: 500mm to 820mm
Surface finish: Regular spangle; Small spangle
Surface treatment: Chromated passivation
Zinc coating: Z08, Z12, Z18
Packing: Mill's standard packing for exporting
Usage: used in the industries such as construction ,cold rolling forming and electro mechanics manufacturing, household electric appliance manufacturing and etc
Standard adopted: GB/T2518-1998;Also we supply such steel strips according to JIS,ASTM standard to meet users'requirements.
Steel grade: Q195,Q195L,SPCC(Other material require agreement )
Equivalent standard: JIS G3302 1998 or ASTM A653M/A924M 1998
Price Terms: FOB, CIF Term
Payment Terms: T/T, L/C at sight
Delivery: 15 days after receiving your valid L/C/down payment
andard | EN 10142 | DX51D+Z, DX52D+Z, DX53D+Z |
JIS G3321 | SGCC, SGCD, SGCDD, SGC400 | |
ASTM A792M | CS type C, CS type B, DS, SS250 | |
Base Metal | Cold rolled steel coils SPCC, SPCD, SPCE, DC01, DC03, DC04, CS, DS, DDS, Q195, Q250, Q350 | |
Thickness | 0.14mm-3.0mm | |
Width | 600mm-1600mm | |
Coil ID | 508mm, 610mm | |
Zinc coating | 60g/m2-450g/m2 | |
Surface treating | chromium free passivation, chromium passivation, fingerprint resistant, oiled | |
Spangle types | Minimal spangle, zero spangle, regular and big spangle | |
- Q:What are the different methods of slitting steel coils?
- There are several different methods of slitting steel coils, each with its own advantages and limitations. Some of the most common methods include: 1. Rotary Shear Slitting: This method involves using rotating knives to cut the steel coil into narrower strips. It is a versatile and efficient method that allows for high-speed production and precise slitting. Rotary shear slitting is commonly used for thinner gauge materials. 2. Looping Pit Slitting: In this method, the steel coil passes through a looping pit where it is guided and tensioned before being slit. It is suitable for thicker gauge materials and provides good edge quality. Looping pit slitting allows for higher coil speeds and can handle heavier coils. 3. Drag Slitting: This method involves dragging the steel coil over a stationary blade or set of blades to perform the slitting. It is particularly useful for materials that are difficult to slit, such as high-strength steels. Drag slitting provides excellent edge quality and is often used for precision slitting applications. 4. Crush Slitting: Crush slitting involves applying pressure to the steel coil to crush and separate it into narrower strips. It is a cost-effective method suitable for lower gauge materials. However, it may result in slightly rougher edge quality compared to other methods. 5. Laser Slitting: Laser slitting utilizes a focused laser beam to cut through the steel coil. It is a highly precise method that offers excellent edge quality and minimal distortion. Laser slitting is commonly used for high-value and specialty materials. Each method has its own advantages and is suitable for specific applications and material types. The choice of slitting method depends on factors such as material thickness, desired edge quality, production speed requirements, and budget.
- Q:What are the common methods of storing steel coils in warehouses?
- Warehouses employ various methods to store steel coils, taking into account factors such as coil size and weight, available space, and resources. Here are some commonly utilized techniques: 1. Block stacking: Coils are stacked directly on top of one another in a block formation. Typically, they are arranged in rows and columns, with wooden or rubber blocks inserted between layers to maintain stability and prevent damage. 2. Racking systems: Racks are frequently employed to store steel coils efficiently. These systems encompass different types of racks, such as cantilever racks, coil racks, and structural racks. They provide an organized framework for storing and accessing coils, maximizing space utilization. 3. Coil cradles: Designed specifically for steel coils, coil cradles consist of multiple cradles or saddles that securely hold the coils in place. By stacking these cradles, warehouses can optimize vertical space usage. 4. Coil pads: Coil pads are flat platforms made of materials like wood, rubber, or foam. They are placed on the warehouse floor, serving as a base for directly stacking steel coils. Coil pads distribute the weight evenly while protecting the coils from floor contact damage. 5. Slit coil storage: Specialized storage systems are employed for storing narrower and lighter slit coils. These systems often include racks or shelves equipped with dividers or separators to maintain coil organization and prevent unraveling. It is crucial to observe safety precautions when handling and storing steel coils in warehouses, regardless of the storage method. This entails ensuring proper weight distribution, utilizing appropriate lifting equipment, and adhering to industry-specific guidelines and regulations.
- Q:What are the different types of steel surface treatments for coils?
- There are several types of steel surface treatments for coils, including galvanizing, electroplating, powder coating, and painting.
- Q:Can steel coils be coated with aluminum?
- Yes, steel coils can be coated with aluminum. The process is known as the hot-dip method, where the steel is first cleaned and then dipped into a bath of molten aluminum. This results in a protective layer of aluminum coating on the steel surface, enhancing its corrosion resistance and providing aesthetic appeal.
- Q:How are steel coils inspected for dimensional accuracy during processing?
- Steel coils are inspected for dimensional accuracy during processing through various methods such as measuring tape, calipers, laser scanners, or automated vision systems. These tools are used to measure the length, width, and thickness of the coils to ensure they meet the required specifications and tolerances.
- Q:How are steel coils used in the manufacturing of transportation equipment?
- Steel coils are used in the manufacturing of transportation equipment as they provide a strong and durable material for various components such as frames, chassis, and body panels. The coils are shaped, cut, and formed into the desired shapes and sizes to create the structural integrity required for vehicles like cars, trucks, trains, and airplanes. The high strength of steel coils ensures the safety and stability of transportation equipment, making them essential in the manufacturing process.
- Q:How are steel coils used in the manufacturing of fasteners?
- Steel coils are used in the manufacturing of fasteners as they provide a continuous and reliable source of raw material. These coils are typically processed through a series of steps, including cutting, shaping, and forming, to create various types of fasteners such as bolts, screws, and nails. The high strength and durability of steel make it an ideal material for fasteners, ensuring their performance and longevity in a wide range of applications.
- Q:Can steel coils be cut or trimmed after delivery?
- Yes, steel coils can be cut or trimmed after delivery. Steel coils are typically delivered in large sizes and can be easily cut or trimmed to the desired length or shape using various cutting methods such as shearing, slitting, or laser cutting.
- Q:What are the safety regulations for handling steel coils?
- The safety regulations for handling steel coils typically include wearing appropriate personal protective equipment (PPE), such as gloves, safety glasses, and steel-toed boots. Additionally, workers are often required to receive proper training on safe lifting techniques and use of equipment, as well as understanding the weight and dimensions of the coils being handled. It is important to ensure a clear and organized work area, secure stacking and storage practices, and the use of appropriate lifting equipment, such as cranes or forklifts, to minimize the risk of accidents, injuries, and damage to the coils or surrounding infrastructure.
- Q:How are steel coils inspected for defects?
- Steel coils are inspected for defects using various methods to ensure that the quality of the product meets the required standards. One common method is visual inspection, where trained inspectors examine the surface of the coils for any visible defects such as cracks, scratches, or dents. This is usually done by visual observation or with the assistance of magnifying tools. Another method is magnetic particle inspection, which is used to detect surface and near-surface defects such as cracks or voids. In this process, a magnetic field is applied to the steel coil, and a magnetic powder is applied to the surface. If there are any defects, the magnetic powder will be attracted to them, making them visible to the inspector. Ultrasonic testing is also commonly used to inspect steel coils for defects. In this method, high-frequency sound waves are transmitted into the coil, and the reflected waves are analyzed. Any deviations in the sound waves can indicate the presence of defects such as cracks or voids within the coil. Additionally, eddy current testing is employed to detect defects in steel coils. This method uses electromagnetic induction to generate eddy currents within the coil. Any changes in these currents caused by defects in the material are detected and analyzed by the inspector. Lastly, some steel coils may undergo destructive testing, where a sample is taken from the coil and subjected to various tests such as tension or bend testing. These tests are performed to evaluate the mechanical properties of the steel, which can indirectly indicate the presence of defects. Overall, steel coils are inspected for defects through a combination of visual inspection, magnetic particle inspection, ultrasonic testing, eddy current testing, and potentially destructive testing. These methods ensure that any defects are identified and addressed, ensuring that only high-quality steel coils are delivered to customers.
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Prepainted Galvanized Steel Coil/Hot Dipped Galvanized Steel Coil
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 1000 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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