PREPAINTED GALVANIZED STEEL IN COIL System 1

PREPAINTED GALVANIZED STEEL IN COIL

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Loading Port:: China Main Port

Payment Terms:: TT OR LC

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Product Description:

Specification

1. Thickness: 0.3-0.8mm

2. Width: 914-1250mm

3. Inner Diameter: 508mm

4. Weight of Steel Coil: 3-15MT

5. Available Dipped Layer: 50-150g/m²

6. Surface Texture: Normal Coated

7. Type of coating structure: 2/1 Coat the top surface of the steel sheet twice, coat the bottom surface once, and bake the sheet twice.

8. Front Side Paint Thickness: 15-25μm (bottom paint+top paint)

9. Back Side Paint Thickness: 5-10μm

Mechanical Properties

1. Mechanical properties of base metals

Grade	Tensile Test
Grade	Yield Strength MPa	Tensile Strength MPa	Elongation A80mm % ≥
SGCC	140-350	270-500	22
SGCD	140-300	270-420	26
SGCE	140-260	270-380	30

2. Common performance of front coating

(1). Thickness: ≥20μm

(2). Pencil Hardness: 2H

(3). 60° specular glossiness of coating: >60

(4). 180°bend: ≤3T

(5). Impact: ≥9J

(6). Salt Fog Resistant: ≥500h

(7). Color difference: <3ΔE

Q: How do steel coils contribute to the marine vessel construction industry?: Steel coils are essential components in the marine vessel construction industry as they play a crucial role in the fabrication of various structural elements of ships and boats. These coils are typically made of high-quality steel and are used in a variety of ways to contribute to the construction and performance of marine vessels. Firstly, steel coils are utilized in the construction of the hull, which is the main body of the ship. The hull requires strong and durable materials to withstand the harsh conditions of the sea, including waves, corrosion, and impacts. Steel coils provide the necessary strength and integrity to the hull, ensuring the vessel's structural integrity and safety. Moreover, steel coils are also employed in the fabrication of decks, bulkheads, and other internal structures of marine vessels. These components are crucial for dividing the ship into compartments, providing stability, and supporting various equipment and machinery. Steel coils are known for their excellent tensile strength, which allows them to bear heavy loads and resist deformation, making them ideal for constructing these vital components. Additionally, steel coils are used in the construction of propulsion systems and other mechanical parts of marine vessels. These coils are often shaped and formed into specific components, such as shafts, gears, and propellers, which are critical for the vessel's propulsion and maneuverability. The high strength and durability of steel coils ensure the reliability and efficiency of these mechanical systems, enabling smooth navigation and operation of the vessel. Furthermore, steel coils contribute to the marine vessel construction industry by enhancing the overall safety and longevity of ships and boats. Steel is known for its resistance to corrosion, which is a significant concern in marine environments due to the presence of saltwater. By utilizing steel coils, marine vessels can withstand the corrosive effects of seawater, reducing the need for frequent maintenance and repair. This, in turn, improves the lifespan of the vessel and reduces the risk of accidents or failures at sea. In conclusion, steel coils are indispensable in the marine vessel construction industry. These coils provide the necessary strength, durability, and resistance to corrosion, ensuring the safety, performance, and longevity of ships and boats. From the construction of the hull to the fabrication of internal structures and mechanical components, steel coils play a vital role in every aspect of marine vessel construction.

Q: I would like to know if steel is basically a very dense crystal, or if it is a different atomic structure: Steel okorder /

Q: How are steel coils inspected for defects after rewinding?: Steel coils are inspected for defects after rewinding by using various techniques such as visual inspection, ultrasonic testing, magnetic particle inspection, and eddy current testing. These methods help identify surface irregularities, cracks, or other defects that may have occurred during the rewinding process, ensuring the quality and integrity of the steel coils.

Q: How are steel coils inspected for width?: To ensure compliance with the necessary specifications, various techniques are employed to inspect the width of steel coils. Among these methods, a commonly used one is the utilization of a caliper gauge, also referred to as a micrometer. This gauge makes direct contact with the coil edges to measure its width. The operator places the gauge at multiple points along the width and records the measurements. This approach guarantees precise measurements and facilitates the identification of any inconsistencies or deviations in the desired width. Another technique employed for width inspection is laser measurement. In this method, laser sensors are positioned on both sides of the coil, emitting a laser beam that scans across the width. By detecting the distance between the edges of the coil, the sensors provide accurate width measurements. This non-contact approach is highly efficient, swiftly inspecting the coil's width without causing any physical damage or requiring physical contact. Moreover, advanced systems employ computer vision technology for width inspection. This involves the use of cameras and image processing software to capture images of the coil's edges. The software then analyzes these images and calculates the width based on the detected edges. This method enables rapid inspections and can identify any irregularities in the coil's width. In conclusion, the inspection of steel coil width involves a combination of physical gauges, laser sensors, and computer vision technology. These methods ensure that the coils conform to the required width specifications and play a crucial role in maintaining quality control throughout the steel manufacturing process.

Q: I know sterling silver can tarnish, so I was just wondering, how does stainless steel hold up?: The bigger question is how will the watch movement hold up over time? If you have a lifetime warranty, don't worry about it they will probably offer a replacement if it gets too expensive to repair. Most men I know have given up watches except for the wrist jewelry look when going out, as you say. Because everyone carries a cellphone and doesn't actually need a wacth any more.

Q: would you consider steel a flexible substance...i am debating this with my coworkers.Thanks,: Yes, steel is flexible. Springs, like the ones holding up your car, are made out of steel. One reason why steel skyscrapers do so well in earthquakes is because steel is flexible. Piano wires are made out of steel. High tension wires for electric power transmission are made out of steel. Even a solid block of hard steel can actually bend and spring back, although it's very hard to see this tiny flexure.

Q: What is the purpose of coating steel coils?: The purpose of coating steel coils is to provide a protective layer that prevents corrosion and enhances the durability and lifespan of the steel.

Q: I need to know a name of any site which provides information on Steel structures??: What information are you looking for specifically? information on steel structures could refer to lots of things. Try the American Institute of Steel Construction, or the American Society of Civil Engineers. Google to find them.

Q: How are steel coils processed for galvanizing or coating?: Steel coils are processed for galvanizing or coating through a series of steps. Firstly, the coils undergo surface preparation, which involves cleaning, degreasing, and removing any rust or mill scale. This is done using chemicals, mechanical methods, or both. Next, the coils are immersed in a zinc bath for galvanizing or passed through a coating application process for other types of coatings. This ensures a uniform and protective layer on the steel surface. Finally, the coated coils are cured or dried using heat or air, after which they are ready for further processing or shipment.

Q: What are the different types of steel coil edge conditions?: The different types of steel coil edge conditions include mill edge, slit edge, and deburred edge.

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