3102 Aluminum Foil Jumbo Rolls
3102 aluminum foil is an industrial foil based on Al-Mn (3xxx series) aluminum alloys. Its main components are aluminum and manganese, with a small amount of magnesium. Manganese enhances strength and corrosion resistance while retaining the lightweight advantages of aluminum. It is a stable, general-purpose basic aluminum alloy foil that conforms to industry standards.

Description
Yutwin New Materials is committed to providing high-quality aluminum foil solutions to the global market, combining durability, safety, and cost-effectiveness. Our product range covers everything from standard household aluminum foil to industrial jumbo rolls and specialty aluminum foils. In addition to standard specifications, we also offer customized solutions based on customers’ technical requirements, including tailored thickness, width, surface treatment, and packaging options.
Material Properties of 3102 Aluminum Foil
- Excellent Formability and Surface Quality
The grain structure is controlled through a cold rolling and annealing process, resulting in a smooth surface with excellent elongation and flexibility, making it easy to process by stamping, bending, and other forming methods.
- High Temperature Resistance
It has good high-temperature resistance and can withstand temperatures up to 420°C without deformation, making it suitable for long-term use in high-temperature environments.
- Eco-Friendly, Glue-Free Bonding Options
It can be bonded using glue-free physical lamination or composite processes, eliminating chemical adhesives, which makes it environmentally friendly, non-polluting, and safer.
- Stable Mechanical and Protective Performance
The material offers stable mechanical performance with good basic properties of moisture resistance, barrier protection, and general shielding capability.
Specifications
| Item | Specification |
|---|---|
| Alloy | 3102 (Al-Mn alloy, 3xxx series) |
| Chemical Composition (%) | Al: Balance; Mn: 0.05–1.50; Fe: ≤0.70; Si: ≤0.40; Cu: ≤0.05; Zn: ≤0.10; Ti: ≤0.05; Others: ≤0.05 |
| Thickness | 0.04 – 0.20 mm (common for fin stock) |
| Width | 20 – 1200 mm (slit-to-width available) |
| Temper | O / H14 / H16 / H18 |
| Inner Core Diameter (ID) | 75 mm / 150 mm / 200 mm / 300 mm (customizable) |
| Surface Finish | Mill finish (bright aluminum surface) |
Typical Applications of 3102 Aluminum Foil

Heat Exchange Systems
- Radiator.
- Condenser.
- Evaporator.
- Intercooler.
- Battery cooling systems (battery thermal management fins).

HVAC Systems
- Air conditioner heat exchanger fin stock.
- Condenser and evaporator components.

Food Packaging
- Used for packaging high-end fresh-keeping foods such as chocolate and coffee to extend shelf life.

Electronics Industry
- Cables.
- Electromagnetic shielding for electronic components.
Routine Maintenance and Storage
- Precautions for Use
Avoid contact with strong acids and alkalis to prevent damage to the surface oxide layer. Use specialized tools for cutting and folding to minimize edge burrs.
- Storage Requirements
Keep the storage environment dry and at room temperature. Do not expose to humid or high-temperature environments for extended periods to prevent moisture absorption, oxidation, and deterioration.
























