8011 Aluminum vs. 8079 Aluminum

Jun. 04, 2025

8011 and 8079 aluminum alloys both belong to the 8xxx series and are commonly used in foil applications due to their excellent formability and barrier properties. Although they share similarities, they differ significantly in composition and mechanical properties, making them suitable for specific applications.

8011 Advantage: Higher ductility (elongation up to 28%), allowing for deep drawing and forming without cracking. Ideal for embossed foil and complex shapes.
8079 Advantage: Higher tensile/yield strength, offering better puncture resistance for pharmaceutical blister packaging.

8079 contains less silicon but more iron, which enhances its barrier properties against moisture and gases.

8011 Aluminum vs. 8079 Aluminum Summary of Key Differences

Feature	8011 Aluminum	8079 Aluminum
Strength	Higher	Moderate
Formability	Good	Excellent
Barrier Properties	Good	Superior
Ductility	Excellent (≤28% elongation)	Limited (2.2% elongation)
Common Applications	Household foil, bottle caps	Flexible packaging, pharmaceutical foils

For optimal performance, prioritize the formability of 8011 and the barrier strength of 8079. Both alloys comply with strict food/pharmaceutical safety standards and perform excellently in different fields.

Core Chemical Composition of 8011 Aluminum vs. 8079 Aluminum

8079 has higher iron content and lower silicon content, which enhances mechanical properties.

Element	8011 Aluminum	8079 Aluminum
‌Silicon (Si)‌	0.50%～0.90%	0.05%～0.30%
‌Iron (Fe)‌	0.60%～1.0%	‌0.7%～1.3%‌ (significantly higher)
‌Copper (Cu)‌	≤0.10%	≤0.05%
‌Others‌	Zinc ≤0.10%, Titanium ≤0.08%	Zinc ≤0.10%

8011 Aluminum vs. 8079 Aluminum Physical and Mechanical Properties

Common advantages: moisture-proof, light-blocking, oxygen barrier, non-toxic. Suitable for direct contact packaging of food and pharmaceuticals.

Property	8011 Aluminum	8079 Aluminum
‌Strength‌	Medium	‌Higher‌ (Increased strength due to higher iron content)
‌Ductility‌	Good	‌Better‌ (Outstanding elongation and rolling performance)
‌Surface Requirements‌	Clean and smooth, no pinholes, heavy metals ≤ 0.25 ppm	Thorough degreasing, fewer holes, Dayne value ≥ 32 (for battery applications)

8011 Aluminum vs. 8079 Aluminum Thermal and Electrical Properties

Property	8011 Aluminum	8079 Aluminum
Thermal Conductivity	210 W/m·K	230 W/m·K
Electrical Conductivity	56% IACS	58% IACS
Melting Range	630°C (Solidus) – 650°C (Liquidus)	640°C (Solidus) – 650°C (Liquidus)

8011 Aluminum vs. 8079 Aluminum Application Scenarios

8079 is used for lithium batteries: improves battery consistency, reduces internal resistance, and extends lifespan. 8011 is more widely used in everyday packaging (such as food trays and bottle caps).

8011 Aluminum: Due to its good strength and corrosion resistance, it is widely used in household aluminum foil, food and pharmaceutical packaging, bottle caps, and heat exchangers. 8079 Aluminum: Suitable for applications requiring excellent formability and barrier properties, such as flexible packaging, pharmaceutical blister packaging, and high-quality laminates.

Field	8011 Aluminum	8079 Aluminum
‌Pharmaceutical Packaging‌	Capsule/tablet blister packaging	Tropical-type blister packaging (Aluminum-plastic-aluminum structure)
‌Food Packaging‌	Yogurt seals (milk cap foil)	High-temperature cooked food bags
‌Industrial Field‌	Tape foil, cable tape	‌Lithium battery pouch aluminum-plastic film‌ (core application)

Applications of 8011 Aluminum

Food packaging: Dominates due to its excellent formability, corrosion resistance, and compliance with FDA requirements.
Pharmaceuticals: Blister packaging requiring deep-draw cavities.
Industrial: Insulation, electronic shielding, building moisture barriers.
Household aluminum foil: Soft (O temper), used for packaging and storage.

Applications of 8079 Aluminum

High-barrier packaging: Outstanding moisture and oxygen resistance, suitable for sensitive pharmaceuticals and dry foods.
Beer labels and bottle caps: High strength to prevent deformation during sealing.
Premium packaging: High-gloss surface (thickness up to 45 microns), elegant appearance.

8011 Aluminum vs. 8079 Aluminum Product Specifications and Processing‌

Parameter	8011 Aluminum	8079 Aluminum
‌Thickness Range‌	0.018–0.5 mm	0.018–0.2 mm
‌Common Tempers‌	O/H14/H16/H18, etc.	‌O/H22/H24‌ (focus on flexibility)
‌Width Range‌	100–1600 mm	100–1650 mm

8011 Aluminum vs. 8079 Aluminum Price and Selection Recommendations‌

‌Price difference‌: Due to differences in alloy composition and processing costs, 8079 is generally more expensive than 8011.

‌Selection principles‌:

Application Requirements	Recommended Aluminum Foil	Explanation
High ductility needed, battery packaging	‌8079	8079 aluminum foil offers excellent ductility and puncture resistance, suitable for high-demand packaging such as pouch batteries and pharmaceutical blister packs.
General packaging, cost-sensitive	‌8011	8011 aluminum foil is cost-effective and widely used for general food and pharmaceutical packaging, suitable for price-sensitive applications.

8011 Aluminum vs. 8079 Aluminum Practical Selection Guide

Choose 8011 in the following cases:

Ductility and formability are critical (e.g., embossed foil, deep-draw containers).
Economic and general-purpose aluminum foil is needed (e.g., household rolls, food trays).

Choose 8079 in the following cases:

Barrier integrity is crucial (e.g., moisture-sensitive drugs, long shelf-life foods).
Higher tensile strength is required (e.g., industrial seals, bottle caps).‌

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