High Quality Prepaint Aluzinc Steel Coil

High Quality Prepaint Aluzinc Steel Coil System 1

High Quality Prepaint Aluzinc Steel Coil

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 50 m.t.

Supply Capability:: 80000 m.t./month

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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: 15-20μm (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 % ≥
DC51D+Z	140-350	270-500	22
DC52D+Z	140-300	270-420	26
DC53D+Z	140-300	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:What are the different coil coatings available for steel coils?: There are several different coil coatings available for steel coils, each offering unique benefits and characteristics. Here are some of the most common coil coatings used in the industry: 1. Polyester: Polyester coil coatings are widely used due to their excellent durability and resistance to fade, scratch, and corrosion. They provide good UV resistance and are available in a wide range of colors. 2. Polyvinylidene fluoride (PVDF): PVDF coatings are known for their exceptional resistance to weathering and UV radiation. They offer excellent color retention, gloss retention, and overall durability, making them suitable for outdoor applications. 3. Polyurethane: Polyurethane coil coatings provide a high level of abrasion resistance and flexibility. They offer excellent chemical resistance and are often used in industries such as automotive and appliances. 4. Silicone modified polyester (SMP): SMP coatings offer good resistance to fading, chalking, and cracking. They provide excellent weather resistance and are commonly used in architectural applications. 5. Epoxy: Epoxy coil coatings are known for their excellent adhesion and chemical resistance. They are often used in demanding environments such as automotive parts and appliances. 6. Plastisol: Plastisol coatings are PVC-based and provide a thick, flexible film on the surface of the steel coil. They offer excellent corrosion resistance and are commonly used in the construction industry. These are just a few examples of the different coil coatings available for steel coils. The choice of coating depends on factors such as the intended application, environmental conditions, desired appearance, and required performance characteristics. Consulting with a coil coating expert can help determine the most suitable coating for a specific project.

Q:How are steel coils inspected for impact resistance using impact testers?: Steel coils are inspected for impact resistance using impact testers, which are specially designed machines used to assess the ability of the steel coils to withstand impacts. The process involves subjecting the steel coils to controlled impacts and measuring the extent of deformation or damage caused by the impact. Firstly, the steel coils are securely placed on the impact tester, ensuring that they are in the correct position and orientation. The impact tester is equipped with a striking element, such as a pendulum or a falling weight, which is designed to deliver a specific amount of force upon impact. The striking element is carefully aligned with the steel coil to ensure accurate and consistent testing. Once everything is set up, the impact tester is activated, and the striking element is released to impact the steel coil. The force of the impact is carefully controlled and measured to ensure consistency across multiple tests. The impact tester records various parameters during the impact, including the force applied and the duration of the impact. After the impact, the steel coil is carefully examined for any visible deformation or damage. This can include checking for dents, cracks, or any other signs of structural compromise. The extent of the deformation or damage is recorded and compared to predetermined acceptance criteria to determine whether the steel coil passes or fails the impact resistance test. Impact testers can be equipped with various sensors and cameras to capture additional data during the testing process. High-speed cameras can be used to record the impact in slow motion, allowing for a detailed analysis of the coil's behavior during the impact. Strain gauges can be attached to the steel coil to measure the strain and stress experienced during the impact. Overall, the use of impact testers provides a reliable and standardized method for inspecting the impact resistance of steel coils. By subjecting the coils to controlled impacts and carefully measuring the extent of deformation or damage, manufacturers can ensure that their steel coils meet the required impact resistance standards for various applications.

Q:is there a type of steel that is stronger or does the rail represent the top of the line?: consumer-friendly steel is used however the rails are tempered to cause them to stand up to the pounding they get from the practice wheels,the intense velocity trains utilized in Europe are made up of a greater variety of steel in accordance to organization who makes them in Germany ,i think of it replaced into Krupp's of Germany who cause them to

Q:What is the difference between steel coils and steel sheets?: Steel coils and steel sheets, although both forms of steel, exhibit distinct differences. Steel coils, which are long rolls of steel wound into a coil shape, are typically produced at a steel mill and serve as raw materials for further processing or manufacturing. Various industries, including automotive, construction, and appliance manufacturing, commonly utilize steel coils in the production of items such as pipes, tubes, and automotive parts. Conversely, steel sheets are flat pieces of steel that are typically derived from steel coils. These sheets come in different sizes and thicknesses, making them versatile for various applications. Construction projects, such as roofing, siding, and structural components, often employ steel sheets. Additionally, they are utilized in manufacturing processes like stamping, forming, and fabricating diverse products. One primary distinction between steel coils and steel sheets lies in their shape and form. Steel coils adopt a cylindrical, rolled form, whereas steel sheets possess a flat, rectangular structure. This dissimilarity in shape renders steel coils more suitable for continuous production processes, while steel sheets find application in scenarios that demand flat surfaces. Another variation pertains to the handling and transportation of these steel forms. Due to their large size and weight, steel coils necessitate specialized equipment like coil cars or cranes for transport and storage. Conversely, steel sheets can be conveniently stacked, transported, and stored using conventional methods. Lastly, the processing requirements for steel coils and steel sheets differ. Steel coils often undergo additional processing steps, such as slitting, cutting, or coating, to meet specific customer requirements. Conversely, steel sheets may require minimal processing before being utilized in their intended applications. In summary, steel coils and steel sheets exhibit variances in shape, handling, transportation, and processing requirements. Steel coils, in their rolled, cylindrical form, are utilized for further processing, while steel sheets, cut from coils, serve specific applications. Recognizing these distinctions is crucial when selecting the appropriate steel form for a particular project or manufacturing process.

Q:Can steel coils be coated with light-reflective materials?: Yes, steel coils can be coated with light-reflective materials. These materials, such as metallic coatings or specialized paints, can enhance the reflective properties of the steel surface, making it more resistant to heat absorption and reducing energy consumption.

Q:I wrote in my assignment that mild steel has a high carbon content (4%).This is why it has its strong and rigid properties.. is this correct?: Steel is defined as an alloy of iron and carbon (often supplemented by further materials) with a carbon content between 0.01 % and 2.06 %. 4% is in the realm of cast iron, which isn't quite as rigid as steel. Mild steel contains 0.16 - 0.29% carbon. You're off by more then a decimal.

Q:What are the common coil thickness tolerances?: The common coil thickness tolerances can vary depending on the specific industry and application. However, typical tolerances for coil thickness range from +/- 0.001 inches to +/- 0.005 inches.

Q:How did the growth of the steel industry influence the development of other industries?: At least three ways: 1. Steel as a material that other industries could use to do things that couldn't be done before (for example, construction (skyscrapers, long bridges, etc.)) or could now be done at much lower cost and hence increased the size of the industry (automobiles, bearings, etc.)

Q:Can steel coils be coated with polymer?: Yes, steel coils can be coated with polymer. The polymer coating provides protection against corrosion, improves durability, and enhances the appearance of the steel coils.

Q:How are steel coils used in the manufacturing of household appliances?: Steel coils are commonly used in the manufacturing of household appliances as they serve as the primary material for constructing various components. These coils are shaped, cut, and processed to create parts such as frames, panels, and supports. Additionally, steel coils are used for creating durable and robust structures that provide stability and longevity to appliances like refrigerators, washing machines, and stoves.

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