Do you learn the difference between aluminum foil and aluminum coils?

Do you learn the difference between aluminum foil and aluminum coils?

Aluminum foil and aluminum coil are both versatile aluminum alloy materials used in different applications across various industries. Aluminum coil alloy and aluminum foil alloy have similar properties in many aspects, but also have many different characteristics. Huawei will make a detailed comparison between the two in terms of properties, uses, etc.:

What are aluminum coils and aluminum foil?

Aluminum Foil: Aluminum foil is a thin sheet of aluminum, typically less than 0.2 millimeters (mm) thick. It is commonly used for wrapping food, packaging, insulation and cooking.
Aluminum coils: Aluminum coils are continuous rolls of aluminum sheets commonly used in industrial applications such as roofing, construction, automotive and manufacturing.

The difference between aluminum coil and aluminum foil thickness:

Aluminum foil: Aluminum foil is very thin, typically 0.006 mm to 0.2 mm (6 microns to 200 microns). It is available in various thicknesses depending on the specific application.

Aluminum coil: Aluminum coil is thicker than aluminum foil. Their thickness ranges from approximately 0.2 mm to several millimeters, depending on the intended use.

Aluminum foil vs aluminum coil properties:

PropertyAluminum FoilAluminum Coils
ThicknessVery thin, typically 0.006 mm to 0.2 mmThicker, typically 0.2 mm to several millimeters
FlexibilityHighly flexible and easily bendableLess flexible compared to foil, but still somewhat bendable
StrengthRelatively low tensile strengthHigher tensile strength, suitable for structural applications
Surface FinishOften shiny on one side (reflective), matte on the otherCan have various surface finishes depending on the application
Heat ConductivityGood heat conductivityGood heat conductivity, suitable for heat transfer applications
Corrosion ResistanceCorrosion-resistantCorrosion-resistant, especially when coated or treated for protection

The difference between aluminum coil and aluminum foil uses

    • Aluminum Foil Uses: Aluminum foil is commonly used for:
      • Food packaging (wrapping, lining, and covering)
      • Insulation (thermal and sound)
      • Cooking and baking (as trays or covers)
      • Household and kitchen applications (covering dishes, lining grill pans)
      • Electrical applications (shielding)
    • Aluminum Coils Uses: Aluminum coils are commonly used for:
      • Roofing and cladding
      • Construction materials (siding, gutters, downspouts)
      • Automotive parts (body panels, trim)
      • Manufacturing processes (sheet metal fabrication, stamping)
      • Heat exchangers and HVAC systems

Manufacturing Process of aluminum foil coil

Aluminum Foil: Aluminum foil is typically produced by rolling aluminum ingots through rolling mills to achieve the desired thickness. The foil is then annealed and may undergo additional treatments for specific properties.

Aluminum Coils: Aluminum coils are produced in a similar manner to aluminum foil but are typically thicker and wider. The process involves hot or cold rolling of aluminum ingots or billets through rolling mills to produce continuous coils of various thicknesses and widths.