OEM Colored Aluminum Sheets - Coated Aluminium Coil for Roofing-AA1xxx

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Product Description:

1 Specifications of PE Coated Aluminum Coil/Sheet

Alloy	AA1050,AA1060, AA1070, AA1100, AA3003, AA3004, AA3005, AA3105, AA5005, AA5052, AA5754, AA5083, AA8011
Temper:	H12, H14, H16, H18, H22, H24, H26, H32,HO, F
Thickness:	0.10-4.0mm
Width:	10mm- 2000mm
Coating	PE(Polyester)
Painting Thickness	Standard 16-25 microns, max 40 microns
Color	Acording to Ral colors or customer’s samples
Standard:	GB/T17748-1999, ASTM, ISO, EU standard
Special Specification is available on customer’s requirement

PE(polyester) Coating

PE(polyester) coating:high molecular polymer as monomer and addition of alkyd, is an UV-resistant coating. It can be classified matt and glossy according to coating gloss. The compact molecule structure, makes paint surface luster and smooth，which assure good printing on the panel surface. With an warranty of 8-10 years for weather resistance, it is specially applied for internal decoration and sign board.

2 Usage/Applications of PE Coated Aluminum Coil/Sheet

Our company's PE Coated Aluminum Coil/Sheet have been widely used in the fields of construction and decoration(garage doors, ceiling etc.), electronic appliances, lighting decoration, air-condition air pipe, sanwich panels and drainage, etc.

Q: What is the tensile strength of aluminum?: The tensile strength of aluminum varies depending on the specific alloy and temper, as well as the manufacturing process. However, on average, the tensile strength of aluminum ranges from around 70 to 700 MPa (megapascals). This makes aluminum a relatively strong material compared to other non-ferrous metals. It is important to note that the tensile strength can also be influenced by factors such as the thickness and shape of the aluminum component, as well as any heat treatment it has undergone. Therefore, it is always recommended to consult specific data sheets or engineering references for accurate and precise information regarding the tensile strength of a particular aluminum alloy.

Q: What are the different methods of surface finishing for aluminum sheets?: There are several methods of surface finishing for aluminum sheets, each with its own advantages and applications. Some of the common methods include: 1. Anodizing: This process involves immersing the aluminum sheet in an electrolytic solution and applying an electric current to create a protective oxide layer on the surface. Anodizing provides excellent corrosion resistance, durability, and can be colored or dyed for aesthetic purposes. 2. Polishing: Polishing is a mechanical process that involves buffing the aluminum sheet to create a smooth and reflective surface. It is commonly used for decorative applications and to enhance the appearance of the metal. 3. Brushing: Brushing involves using abrasive materials or brushes to create a directional grain pattern on the aluminum sheet's surface. This method is often used for architectural applications or to achieve a distinctive textured finish. 4. Powder coating: Powder coating involves applying a dry powder paint to the aluminum sheet's surface and then curing it under heat. This process provides a durable and vibrant finish, offering excellent resistance to weathering, chemicals, and UV rays. 5. Chemical etching: Chemical etching involves using acidic or alkaline solutions to selectively remove the aluminum from the sheet's surface, creating a textured or patterned design. This method is commonly used for decorative purposes or to enhance adhesion for subsequent coatings. 6. Laminating: Laminating involves bonding a protective film or layer onto the aluminum sheet's surface. This method provides added protection against scratches, stains, and other physical damage while also allowing for customization through different film finishes. 7. Sandblasting: Sandblasting uses high-pressure air or water to propel abrasive particles onto the aluminum sheet's surface, creating a textured or matte finish. It is often used to remove impurities, improve paint adhesion, or create a distinctive appearance. These are just a few of the many methods available for surface finishing aluminum sheets. The choice of method depends on the desired appearance, functionality, and specific requirements of the application.

Q: What are the potential hazards or risks associated with the use and handling of aluminum sheets?: Safety issues related to aluminum sheets include the risk of cuts and lacerations from sharp edges, potential for eye injuries if aluminum particles or dust comes into contact with the eyes, and the risk of fire or explosion if aluminum dust is present in the air and ignited. Additionally, improper handling can lead to back injuries or other musculoskeletal disorders due to the weight of the sheets. Inhalation of aluminum dust over a long period may also pose health risks, although it's less common. It's crucial to use proper protective equipment and follow safety guidelines when working with aluminum sheets.

Q: How do you prevent galvanic corrosion when using aluminum sheets with concrete?: To prevent galvanic corrosion when using aluminum sheets with concrete, it is essential to use a barrier or protective coating between the aluminum and concrete surfaces. This can be achieved by applying a suitable paint, epoxy coating, or a non-conductive membrane to isolate the aluminum from direct contact with the concrete. Additionally, using corrosion-resistant fasteners made of stainless steel or other compatible materials can further prevent the occurrence of galvanic corrosion. Regular inspections and maintenance are also crucial to identify and address any potential corrosion issues promptly.

Q: This question asks for a comparison of aluminum sheets with other common materials used in building insulation, focusing on their properties and performance.: Aluminum sheets are lightweight and have excellent thermal conductivity, which can be both an advantage and a disadvantage in insulation. They reflect heat well, making them useful in radiant barrier applications, but they are poor insulators as they do not trap heat. In contrast, materials like fiberglass, cellulose, and mineral wool have lower thermal conductivity and are more effective at reducing heat transfer. These materials are better at insulating as they trap air, which is a poor conductor of heat. Foam insulation, such as polyurethane and polystyrene, also offers good thermal resistance due to their closed-cell structure. Overall, aluminum sheets are not typically used as primary insulation but can be effective in specific applications where heat reflection is desired.

Q: Can aluminum sheet be painted or coated after fabrication?: Indeed, it is possible to paint or coat aluminum sheet after it has been fabricated. Aluminum, being a versatile material, lends itself easily to being painted or coated in order to improve its appearance or provide extra protection. The procedure involves preparing the surface through thorough cleaning and the elimination of any impurities, followed by the application of a primer to enhance adhesion. Once the primer has dried, a topcoat of paint or coating can be applied to achieve the desired color or finish. The choice of paint or coating will depend on the intended usage and the specific requirements of the application. All in all, painting or coating aluminum sheet after fabrication is a widespread practice that can significantly enhance its aesthetics and durability.

Q: What are the different types of surface treatments available for aluminum sheets?: Aluminum sheets can be treated in a variety of ways to achieve specific purposes and unique characteristics. Anodizing, painting, powder coating, and polishing are some of the most commonly used surface treatments for aluminum sheets. Anodizing involves the creation of a thick oxide layer on the surface of the aluminum sheet. This treatment not only enhances the appearance by providing a range of colors but also increases corrosion resistance and durability. Anodized aluminum sheets are widely utilized in architecture, automotive parts, and electronics. Painting is another popular surface treatment for aluminum sheets. It entails applying a layer of paint to enhance appearance and provide additional protection against corrosion and wear. Painted aluminum sheets are commonly seen in signage, building facades, and decorative applications. Powder coating is a type of surface treatment where a dry powder is applied to the aluminum sheet and then heated to create a protective layer. This treatment offers excellent durability, resistance to weathering, and a wide range of color options. Powder coated aluminum sheets find extensive use in the construction industry, as well as for automotive parts and appliances. Polishing involves buffing the aluminum sheet to create a smooth and reflective surface. This treatment enhances the aesthetics, making it perfect for decorative applications like furniture, jewelry, and architectural accents. In summary, the selection of surface treatment for aluminum sheets depends on desired appearance, functionality, and application requirements. Each treatment provides distinct advantages and characteristics, allowing for versatility and customization in various industries.

Q: This question asks for methods to determine the thickness of aluminum sheets.: To measure the thickness of aluminum sheets, you can use various methods including mechanical thickness gauges, ultrasonic thickness gauges, or calipers. Mechanical gauges are simple and involve sliding a foot along the sheet until it bottoms out on both sides. Ultrasonic thickness gauges use sound waves to measure thickness and are non-destructive, providing accurate measurements. Calipers can also be used for manual measurement, though they may be less precise for very thin sheets. Always ensure the measuring device is calibrated and suitable for the material and thickness range of the aluminum sheet in question.

Q: What is the typical lead time for ordering aluminum sheets?: The typical lead time for ordering aluminum sheets can vary depending on various factors such as the supplier, the quantity of sheets ordered, and the current demand for aluminum. However, in general, lead times for ordering aluminum sheets can range from a few days to several weeks. For standard-sized aluminum sheets that are readily available in stock, the lead time is usually shorter, typically ranging from a few days to a week. This is because suppliers often have these common sizes in their inventory and can ship them out quickly. On the other hand, if you require custom-sized aluminum sheets or a large quantity that is not readily available, the lead time may be longer. In such cases, the supplier may need to source the aluminum, cut it to the desired size, and process any necessary treatments or finishes. This process can take several weeks, especially if the supplier has a high volume of orders or if the aluminum needs to be imported. It is important to communicate with the supplier to determine the specific lead time for your order. They will be able to provide you with an estimated timeframe based on their current production capacity, stock availability, and any other factors that may impact the lead time.

Q: What is the fatigue strength of aluminum sheets?: The fatigue strength of aluminum sheets varies depending on several factors such as the alloy composition, thickness, surface condition, and the specific loading conditions. Aluminum alloys generally exhibit good fatigue strength, particularly when compared to other metals. The fatigue strength of aluminum sheets is typically determined through fatigue testing, where specimens are subjected to cyclic loading until failure. The S-N curve, which represents the relationship between the number of cycles to failure (N) and the applied stress amplitude (S), is used to characterize the fatigue behavior of aluminum sheets. Aluminum alloys, such as 2024-T3 and 6061-T6, commonly used in aerospace and automotive industries, have high fatigue strengths and can withstand millions of cycles at certain stress levels. For example, 2024-T3 aluminum alloy has a fatigue strength of approximately 105 MPa (15,000 psi) at 10^6 cycles, whereas 6061-T6 aluminum alloy has a fatigue strength of around 96 MPa (14,000 psi) at the same number of cycles. It is important to note that the fatigue strength of aluminum sheets can be influenced by various factors, such as the presence of surface defects, corrosion, temperature, and loading frequency. Proper surface preparation, including smoothing and removing sharp edges, can increase the fatigue strength of aluminum sheets. Additionally, the use of proper stress relief treatments and design considerations, such as avoiding stress concentrations and optimizing joint design, can also improve the fatigue performance of aluminum sheets. Overall, the fatigue strength of aluminum sheets is generally considered to be good, but it is important to consider the specific alloy, thickness, surface condition, and loading conditions to accurately determine and optimize the fatigue performance in practical applications.

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