Aluminum foil refers to thin strips or sheets of aluminum or aluminum alloys with a thickness of 0.2 mm or less. Because its hot-stamping effect resembles that of pure silver foil, it is also known as “imitation silver foil.” Characterized by its soft texture, high ductility, and silvery-white luster, it is a metallic thin-film material widely used in sectors such as packaging, electrical engineering, and construction.
In the aluminum industry, aluminum foil refers to any aluminum sheet with a thickness of less than 0.2 millimeters (or 200 micrometers). This ultra-thin characteristic gives aluminum foil excellent flexibility and ductility, making it suitable for a wide range of applications. For reference, the thickness of standard household aluminum foil is typically about 0.016 millimeters (16 micrometers), while the thickness of industrial aluminum foil can be further reduced depending on the specific application requirements.
Differences between 1235-type and 8079-type aluminum foil
The core difference between 1235 and 8079 lies in their respective alloy systems: 1235 is classified as commercially pure aluminum (1xxx series), while 8079 is an aluminum-iron-silicon alloy (8xxx series). This distinction leads to significant differences in terms of strength, pinhole control, and intended applications.
| Performance Dimension | 1235 (Type 1 pure aluminum) | 8079 (8 series alloy) |
| Tensile strength | Lower, the annealed state of pure aluminum is approximately 60 to 90 MPa. | Higher, reaching 110 to 150 MPa |
| Electrical conductivity | Excellent, with an electrical conductivity of approximately 61% IACS | Slightly lower, approximately 58% – 59% IACS |
| Flexibility | Excellent, elongation ≥ 20% | Good. Elongation is ≥ 18%, and the ductility under pressure is excellent. |
| Pinhole control | Generally | Excellent, with a low number of pinholes and small size. |
Material Selection Logic: Food-grade aluminum foil, pharmaceutical-grade aluminum foil, and battery-grade aluminum foil
The selection of aluminum foil for different applications depends on the unique properties required for each use. For example, food aluminum foil is designed to ensure direct contact with food, while pharmaceutical aluminum foil must meet stringent regulatory standards to ensure the safety and efficacy of pharmaceuticals. On the other hand, battery aluminum foil needs to possess specific electrical properties to function effectively in energy storage applications.
Differences between household aluminum foil and industrial aluminum foil
Household aluminum foil and industrial aluminum foil have different uses and are manufactured to meet different requirements.
Household aluminum foil: This type of aluminum foil is commonly used for cooking, baking, and food storage. It is designed for ease of use, with a moderate thickness that ensures both flexibility and ease of handling. Household aluminum foil is usually sold in rolls and is available in various widths and lengths to meet different cooking and storage needs.
Industrial aluminum foil: Unlike regular aluminum foil, industrial aluminum foil is manufactured for specific applications that require higher performance. This type of foil may be thicker and is commonly used in industries such as pharmaceuticals, electronics, and automotive. Industrial aluminum foil is produced to stringent quality standards and may undergo additional processing to enhance its properties, such as increasing strength or improving barrier properties.
In summary, aluminum foil is a highly versatile material with excellent performance, serving a wide range of applications—from home cooking to industrial manufacturing. Jindalai Steel Group Co., Ltd. is committed to providing high-quality aluminum foil products to meet the diverse needs of our customers. Whether you require food-grade, pharmaceutical-grade, or battery-grade aluminum foil, understanding the differences between the various grades and types will help you make the best choice for your specific application.
Post time: Oct-16-2026
