1100 Aluminum Foil

1100 aluminum foil is an industrial pure aluminum product belonging to the 1000 series (commercially pure aluminum), with an aluminum content of ≥99.00%. It is non-heat-treatable but responds well to cold working, offering excellent workability and specific physical properties, and is widely used across various industries.

Haomei Aluminum offers multiple tempers of 1100 aluminum foil, ranging from fully annealed ("O") to half-hard/full-hard (H12, H14, H16, H18...).

1100 aluminum foil has excellent ductility and formability, making it extremely easy to shape, bend, and cut, suitable for a variety of fabrication processes. Its outstanding processability allows for fine embossing, complex forming, and smooth folding without cracking. In addition, it has good corrosion resistance and a bright surface, enhancing the aesthetic appeal of finished products.

1100 Aluminum Foil

1100 aluminum foil is the thinnest form of the versatile 1100 alloy — a nearly pure aluminum ideal for applications requiring lightweight, corrosion resistance, thermal/electrical conductivity, and ease of forming. While not suitable for structural use, it performs exceptionally well in packaging, heat transfer, decoration, and chemical industries.

1100 aluminum foil is a widely used, cost-effective material, highly valued for its purity, formability, and conductivity. Although not intended for structural applications, it excels in thermal/electrical systems, packaging, and decorative uses.

1100 Aluminum Foil Thickness and Formats

For foil: typical thicknesses from 0.006 mm up to ~0.2 mm, widths up to 2.65 m .
For sheet/plate: thickness ranges from ~0.5 mm to several mm; sold cut‑to‑size .
Tempers: O (soft), H12/H14/H16/H18 (hardness variants).
Standards: ASTM B479, QQA-1876, AMS 4003.

1100 Aluminum Foil Material Properties

1100 Aluminum Foil Chemical Composition

Aluminum (Al) content ≥99.00%, with main impurities being silicon (Si ≤0.95%), copper (Cu: 0.05–0.20%), and iron (Fe ≤0.35%), meeting the standards of industrial pure aluminum.

Contains a small amount of copper, giving it slightly higher tensile strength compared to other pure aluminum series (such as 1060).

1100 Aluminum Foil Mechanical and Physical Properties

Conductivity: Approximately 59% IACS (slightly lower than the 62% of 1060 aluminum foil)
Barrier Properties: Dense structure effectively blocks moisture, oxygen, and light

Temper	Tensile Strength (MPa)	Yield Strength (MPa)	Elongation (%)
O (Annealed)	80–110	≥50	18–35
H18 (Full Hard)	≥160	–	1–5
H19	205	165	3.0

1100 Aluminum Foil Thermal and Electrical Conductivity

High thermal conductivity, second only to copper/silver among common metals .
Good electrical conductivity makes it useful in some conductor applications .

Core Advantages of 1100 Aluminum Foil

Processing Performance: Excellent ductility, suitable for deep drawing, stretching, and other complex forming processes
Surface Characteristics: Clean degreasing, few pinholes, flat sheet shape, and deformation-free cutting
Environmental Adaptability: Corrosion-resistant, non-toxic and odorless, compliant with food-grade packaging requirements
Barrier Protection: Moisture-proof, light-blocking, and anti-theft/anti-counterfeiting, extending product shelf life

1100 Aluminum Foil Applications

Common Applications

Application Type	Details
Heat exchangers, fins	Used in HVAC, refrigeration, electronics due to high heat conductivity
Food, pharmaceutical packaging	Lightweight, corrosion-resistant foil for wrapping/storing
Reflectors, solar and lighting	Reflectivity and formability make it ideal
Industrial filters, tags, nameplates	Good workability and corrosion resistance
Chemical processing equipment	Non-toxic, easily formed, weldable
Electronics	Capacitor shells, some conductors
Decor/trims, giftware	Bright finishing and ease of shaping
Non-critical aircraft components	Wing ribs, interior panels (lightweight, formable)

1100 Aluminum for‌ the Packaging Industry‌

Used for food/cosmetic bottle cap sealing gaskets (PE liners) and aluminum-plastic composite packaging materials, leveraging its barrier properties to protect contents from moisture absorption, oxidation, and light exposure.

1100 Aluminum for‌ Industry and Construction‌

Heat exchanger components (excellent thermal conductivity), printed circuit board base materials
Building decorative panels (curtain wall substrates), phenolic composite air ducts

1100 Aluminum for‌ Electronics and Consumer Products‌

Capacitor shells, flexible circuit boards, cookware and kitchen utensils, heat sinks, and car speaker components

1100 Aluminum Foil Manufacturing and Workability

Exhibits good formability even under harder temper conditions, making it suitable for complex shaping.

Formability: Easily bent, spun, or deep drawn in annealed (O) temper; cold working can improve hardness
Weldability: Compatible with all conventional welding methods (TIG, MIG); filler metal ER4043 is recommended
Machining: Due to its softness, hard alloy tools and lubricants are required
Annealing: After cold working, heat to 343°C (650°F) and air cool to restore ductility

1100 Aluminum Foil Advantages and Limitations

1100 Aluminum Foil Advantages

Excellent formability and workability
Outstanding corrosion resistance, thermal and electrical conductivity
Lightweight, weldable, non-toxic, recyclable, and cost-effective
Attractive surface, ideal for decorative/construction applications

1100 Aluminum Foil Limitations

Low mechanical strength, not suitable for structural load-bearing
Non-heat-treatable, limited hardness achievable only through cold working
Poor machinability

1100 Aluminum Foil Selection and Technical Parameters

‌Item‌	‌Specification Range‌	‌Description‌
Alloy Temper	O, H18, H22, H24	O temper offers excellent ductility, H18 provides high strength
Thickness	0.006–0.2 mm	Ultra-thin specifications (e.g., 0.006 mm) require customization
Width	100–1700 mm	Custom slitting available
Application Priority	Packaging ＞ Construction ＞ Electronics ＞ Battery	For lithium battery cathodes, 1060 is preferred (better conductivity)

Comparison Between Aluminum Foil 1100 and Other Alloys

Compared to 1060/1070: 1100 contains more iron, which increases strength and toughness
Compared to 6061: Lower strength, but better formability and conductivity; more affordable and more corrosion-resistant

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