8021 Aluminum foil is a common aluminum alloy material with the following characteristics:
8021 Aluminum Alloy Composition:
Aluminum (Al): approx. 99%.
Silicon (Si): approx. 0.05%.
Iron (Fe): approx. 0.35%.
Copper (Cu): approx. 0.10%.
Manganese (Mn): approx. 0.10%.
Magnesium (Mg): approx. 0.05%.
Zinc (Zn): approx. 0.10%.
8021 Physical properties of aluminum foil:
Density: 2.71 g/cm3.
Melting point: approx. 660°C.
Coefficient of linear expansion: 23.1 μm/m °C (20-100°C).
Thermal conductivity: 125-150 W/m-K.
Characteristics of 8021 aluminum foil alloy:
Barrier Properties: 8021 aluminum foil has excellent barrier properties that effectively isolate external environmental factors such as moisture, oxygen, odor, light and microorganisms.
Corrosion resistance: It has good corrosion resistance and can resist the erosion of various chemical substances.
Health and safety: in line with international health standards and food safety requirements, non-toxic, odorless, suitable for pharmaceutical and food packaging and other fields.
Suitable for high temperature environment: high temperature resistance, suitable for high temperature sterilization and heat sealing packaging.
Mechanical properties:
Strength: 8021 aluminum foil has good strength and can maintain stable mechanical properties during processing and use.
Elongation: good elongation, easy to fold, cut, mold and seal.
Processability: easy to process and form, suitable for various processing techniques, such as stamping, stretching, etc.
8021 Aluminum foil's alloy composition and characteristics make it a high quality material, widely used in pharmaceutical packaging, food packaging and electronic products, with good barrier properties, mechanical properties and corrosion resistance.