Difference Between 8011 a 8079 Alloy in Pharma Packaging

I. Differences in Alloy Systems and Chemical Compositions

1. 8011 Zliatina

• The Fe content is relatively high, which is one of the core characteristics of its composition.
• The Si content is controlled within a moderate range, forming a reasonable ratio with Fe.
• There are many Fe-rich phases distributed in the microstructure, which affect the basic mechanical properties of the material.

2. 8079 Zliatina

• The Fe content is significantly lower than that of 8011, and the composition control is more stringent.
• The Si content is strictly controlled at a low level to reduce the interference of impurities on performance.
• The microstructure is more refined and uniform, without obvious phase segregation.

II. Differences in Mechanical Properties and Forming Behavior

1. Elongation and Plasticity

• 8011 Hliníková fólia: It has a relatively high elongation, suitable for blister forming of conventional thickness (≥20μm). The forming process is not prone to obvious uneven deformation, and the process stability is good. Avšak, in ultra-thin specifications (<20μm), the plasticity decreases significantly, and the forming risk increases sharply.
• 8079 Hliníková fólia: It has higher elongation than 8011 and more uniform plasticity distribution. Its core advantage is concentrated in the field of ultra-thin pharmaceutical aluminum foil ≤20μm. Even in the cold forming or deep drawing process, it can effectively avoid defects such as cracking and creasing, and the forming consistency is better.

2. Pinhole Resistance

• 8011 Hliníková fólia: It has stable pinhole resistance in the conventional thickness range of 20–25μm, which can meet the packaging needs of ordinary preparations. Avšak, when the thickness is reduced below 20μm, the pinhole rate will increase significantly, which cannot guarantee high protection requirements.
• 8079 Hliníková fólia: Relying on its refined and uniform microstructure, it can still maintain an extremely low pinhole rate in 16–20μm or even thinner specifications. Its pinhole resistance is far superior to that of 8011, which can effectively meet high protection demand scenarios.

III. Correlation Between Barrier Performance and Drug Stability

1. Barrier Performance of 8011 Hliníková fólia

2. Barrier Performance of 8079 Hliníková fólia

IV. Coating Adaptability and Heat Seal Stability

1. 8011 Zliatina

2. 8079 Zliatina

V. Differences in Regulatory Compliance and Market Positioning

1. Market Positioning of 8011 Hliníková fólia

• It is the most widely used globally, covering mass categories such as conventional generic drugs, OTC products, and ordinary oral preparations.
• Its core advantage lies in the “balance between cost and performance”, which is suitable for pharmaceutical enterprises sensitive to packaging costs and pursuing large-scale production.
• The market supply is sufficient, the procurement channels are wide, the selection threshold is low, and it is the “basic model” alloy aluminum foil in pharmaceutical packaging.

2. Market Positioning of 8079 Hliníková fólia

• It is mainly used in high-value-added preparations, such as biological preparations, innovative drugs, long-acting sustained-release preparations, and high-end generic drugs.
• It has higher acceptance in high-standard regulatory markets such as the EU and Japan, and is more suitable for the product packaging needs of export-oriented pharmaceutical enterprises.
• It is the preferred choice of high-end pharmaceutical customers, and its core value lies in “extreme protection and risk control” rather than cost advantage.

VI. 8011 vs 8079: Summary of Application Scenario Decision Logic

Záver: There Is No “Better”, Only “More Suitable”

QA: Common Selection Questions and Professional Answers

• Q1: Can 8011 a 8079 aluminum foils be directly replaced without adjusting the packaging process? A1: Direct replacement is not recommended. The performance differences between the two will affect production stability and packaging safety. Small-batch trial production verification should be carried out in combination with thickness and process parameters before replacement.
• Q2: What is the approximate cost difference between the two alloy aluminum foils, and how to balance cost and packaging risk? A2: Under the same thickness, the cost of 8079 je 10%-15% higher than that of 8011. For conventional preparations, 8011 is preferred to control costs; for highly sensitive and export-grade preparations, 8079 is preferred to control risks.
• Q3: The Fe content of 8079 aluminum foil is lower, will it affect its stability in long-term use? A3: Nie. 8079 makes up for the lack of Fe content by strictly controlling Si content and refining the structure, with better long-term stability, suitable for preparations with long storage cycles.
• Q4: Is there any difference in compliance between the two aluminum foils, and what should be paid special attention to when exporting to the EU and Japan markets? A4: There is no essential difference in compliance, and both meet mainstream standards. For exporting high-end preparations, 8079 is preferred, and component testing and impurity control certificates should be provided.
• Q5: For the selection of ultra-thin specification (<20μm) hliníková fólia, besides 8079, is there any optimization space for 8011? A5: The optimization space is limited. The pinhole rate of 8011 ultra-thin specifications is prone to increase. If selected, it is recommended to control the thickness at 18-20μm and strengthen quality inspection.