The Difference Between 8011 and 8021 Aluminum Foil
8011 VS 8021 Aluminum Foil Aluminum foil is widely used in food packaging, pharmaceutical packaging, battery production, household use, and industrial applications. Among many aluminum foil alloys, 8011 aluminum foil and 8021 aluminum foil are two of the most common products.
Although both belong to the aluminum foil family, they have different chemical compositions, mechanical properties, and applications.
8011 VS 8021 Aluminum Foil : which to choose
What Is 8011 Aluminum Foil?
8011 aluminum foil is a widely used aluminum alloy foil containing iron and silicon elements. It has good strength, excellent formability, and strong moisture resistance.
8011 VS 8021 Aluminum Foil is commonly used in:
- Household foil
- Food container foil
- Pharmaceutical packaging
- Bottle cap material
- Flexible packaging
Main Features of 8011 Aluminum Foil
| Property | Description |
|---|---|
| Alloy Series | 8000 Series |
| Main Elements | Fe, Si |
| Surface | Smooth and clean |
| Moisture Resistance | Good |
| Formability | Excellent |
| Food Safety | Suitable |
What Is 8021 Aluminum Foil?
8021 aluminum foil has higher strength and better deep drawing performance compared to 8011 alloy. It is often used in high-barrier packaging and battery applications.
8011 VS 8021 Aluminum Foil is widely used in:
- Lithium battery foil
- Pharmaceutical blister foil
- Flexible packaging
- Cold forming foil
Main Features of 8021 Aluminum Foil
| Property | Description |
|---|---|
| Strength | Higher |
| Elongation | Excellent |
| Pinhole Resistance | Better |
| Barrier Performance | Excellent |
| Deep Drawing | Very good |
8011 VS 8021 Aluminum Foil for sale
Chemical Composition Comparison
8011 Aluminum Composition 8011 VS 8021 Aluminum Foil
| Element | Content |
|---|---|
| Aluminum | Balance |
| Iron | 0.6–1.0% |
| Silicon | 0.5–0.9% |
8021 Aluminum Composition
| Element | Content |
|---|---|
| Aluminum | Balance |
| Iron | 1.2–1.7% |
| Silicon | 0.05% max |
Mechanical Properties Comparison
| Property | 8011 Foil | 8021 Foil |
|---|---|---|
| Tensile Strength | Medium | Higher |
| Elongation | Good | Excellent |
| Flexibility | Good | Better |
| Deep Drawing | Standard | Superior |
| Pinhole Resistance | Good | Excellent |
8021 foil is usually preferred for demanding packaging applications.
Common Tempers Available
| Alloy | Tempers |
|---|---|
| 8011 | O / H14 / H18 |
| 8021 | O |
Thickness Range Comparison
| Alloy | Thickness Range |
|---|---|
| 8011 | 0.006 mm – 0.2 mm |
| 8021 | 0.018 mm – 0.2 mm |
Are There Different Grades of Aluminum Foil?
Yes. Aluminum foil comes in different grades and alloys depending on the application.
Common Aluminum Foil Grades
| Alloy | Main Application |
|---|---|
| 1235 | Flexible packaging |
| 3003 | Food containers |
| 8011 | Household foil |
| 8021 | Pharmaceutical foil |
| 8079 | High barrier packaging |
Different 8011 VS 8021 Aluminum Foil grades provide different strength, flexibility, and barrier performance.
Household Aluminum Foil
8011 alloy is one of the most common materials for household foil.
Features
- Safe for food contact
- Easy to fold
- Good heat resistance
- Lightweight
Applications
- Kitchen foil
- BBQ foil
- Food wrapping
- Baking foil
Pharmaceutical Aluminum Foil
8021 aluminum foil is widely used in pharmaceutical packaging.
Advantages
- Excellent barrier protection
- Moisture resistance
- Strong sealing performance
Common Products
- Blister foil
- Cold forming foil
- Medicine packaging
Battery Aluminum Foil
8021 alloy is important in lithium battery production.
| Property | Benefit |
|---|---|
| High elongation | Better forming |
| Clean surface | Stable coating |
| Strong barrier | Improved safety |
Food Container Foil
8011 aluminum foil is commonly used for food trays and containers.
Applications
- Airline containers
- Takeaway boxes
- Baking trays
- Frozen food packaging
Flexible Packaging Foil
Both 8011 and 8021 alloys are used in laminated flexible packaging.
8011 VS 8021 Aluminum Foil Typical Industries
- Food packaging
- Pharmaceutical packaging
- Cosmetic packaging
- Industrial packaging
What Is the Price of Aluminium 8011?
The price of 8011 VS 8021 Aluminum Foil depends on several factors.
8011 VS 8021 Aluminum Foil Price Factors
| Factor | Influence |
|---|---|
| Aluminum ingot price | High |
| Thickness | High |
| Temper | Medium |
| Surface quality | High |
| Order quantity | Important |
Thin foil with strict surface requirements usually costs more.
8011 vs 8021 Price Comparison
| Alloy | Price Level |
|---|---|
| 8011 | Lower |
| 8021 | Higher |
8021 foil normally costs more because of its higher performance and stricter production requirements.
8011 VS 8021: Technical Comparison
While both are excellent, 8021 aluminum foil is often considered the “premium” version for specific technical tasks. The biggest difference lies in their barrier properties and ductility.
Table 1: Technical Specifications Comparison
| Property | 8011 Aluminum Foil | 8021 Aluminum Foil |
|---|---|---|
| Main Alloy Elements | Al−Fe−Si | Al−Fe−Si (Higher Fe content) |
| Tensile Strength | 125−165 MPa | 150−200 MPa |
| Elongation (Stretch) | Approx. 2%−5% | Approx. 15%−25% |
| Barrier Performance | High | Excellent (Superior) |
| Main Application | Food & Household | Pharmaceutical (Cold Form) |
| Surface Finish | One side bright / Two sides bright | One side bright |
Table 2: Thickness and State (Temper) Variations
| Product Type | Thickness Range (mm) | Common Temper |
|---|---|---|
| Household Foil | 0.008 mm – 0.02 mm | Soft (O) |
| Container Foil | 0.03 mm – 0.08 mm | Semi-Hard (H22/H24) |
| Pharma Blister | 0.02 mm – 0.03 mm | Hard (H18) |
| Cold Form Foil | 0.04 mm – 0.06 mm | Soft (O) |
Which Brand of Aluminium Foil Is Best?
The best aluminum foil supplier depends on:
- Product quality
- Thickness tolerance
- Surface cleanliness
- Production capacity
- Export experience
Professional manufacturers can provide:
- Stable quality
- Customized sizes
- OEM packaging
- Technical support
WORTHWILL ALUMINUM supplies 8011 and 8021 aluminum foil for food packaging, pharmaceutical packaging, battery foil, and industrial applications.
8011 VS 8021 Aluminum Foil Surface Quality Requirements
Clean Surface
High-quality foil should have:
- No oil stains
- No scratches
- Uniform thickness
Pinhole Resistance
Pinhole resistance is critical for packaging applications.
| Alloy | Pinhole Resistance |
|---|---|
| 8011 | Good |
| 8021 | Better |
Barrier Performance
Good barrier performance helps protect products from:
- Moisture
- Air
- Light
- Contamination
Aluminum Foil Coil Sizes
| Width | Common Application |
|---|---|
| 200 mm | Small packaging |
| 500 mm | Household foil |
| 800 mm | Industrial packaging |
| 1000 mm | Pharmaceutical foil |
Packaging Types
Jumbo Roll Aluminum Foil
Large rolls used for industrial processing.
Small Roll Foil
Used for household and retail applications.
Laminated Foil
Combined with plastic or paper layers.
8011 Aluminum Foil Applications
Food Industry
- Food wrapping
- Container foil
- Kitchen foil
Pharmaceutical Industry
- Medicine packaging
- Blister packs
Industrial Use
- Insulation foil
- Cable wrapping
8021 Aluminum Foil Applications
Lithium Battery Industry
- Battery pouch foil
- Energy storage systems
Pharmaceutical Packaging
- Cold forming foil
- High barrier packaging
Flexible Packaging
- Laminated foil products
Comparison Between 8011 and 1235 Aluminum Foil
| Property | 8011 | 1235 |
|---|---|---|
| Strength | Higher | Lower |
| Flexibility | Good | Excellent |
| Food Packaging | Common | Common |
| Industrial Use | More versatile | Basic packaging |
Comparison Between 8011 and 8079 Aluminum Foil
| Property | 8011 | 8079 |
|---|---|---|
| Cost | Lower | Higher |
| Barrier Performance | Good | Better |
| Flexibility | Good | Excellent |
Pricing: What is the price of aluminium 8011?
When asking “What is the price of aluminium 8011?“, 8011 VS 8021 Aluminum Foil, you must consider that it is usually cheaper than 8021.
Factors affecting the price:
- LME Index: The global base price of aluminum fluctuates daily.
- Processing Fee: Thin foils (e.g., 0.006 mm) cost more to produce than thick foils.
- Order Volume: Bulk orders (over 5 tons) usually receive significant discounts.
- Coating/Printing: Adding a layer of lacquer or a custom logo increases the price per kg.
Generally, 8011 aluminum prices range between US$2,500 and US$3,500 per ton, depending on the market and specifications. 8011 VS 8021 Aluminum Foil
Which brand of aluminium foil is best?
Many customers ask: “Which brand of aluminium foil is best?” for 8011 VS 8021 Aluminum Foil, The truth is that “best” depends on the manufacturer’s quality control rather than just the brand name.
How to identify a quality supplier:
- Pinhole Rate: High-quality foil has almost zero pinholes. This is vital for food safety.
- Surface Tension: The foil must have high wettability (Grade A) so that inks and glues stick properly.
- Certifications: Look for ISO, FDA, and SGS certifications.
- Edge Quality: The edges of the roll should be smooth with no burrs or “waves.”
Aluminum Foil Manufacturing Process
Rolling
The aluminum slab is rolled into thin foil.
Annealing
Heat treatment improves flexibility.
Slitting
The foil is cut into required widths.
Packaging
Finished coils are packed for shipment.
Export Packaging
| Packaging Type | Protection |
|---|---|
| Wooden pallets | Safe transport |
| Plastic film | Moisture protection |
| Export carton | Surface protection |
FAQ – Frequently Asked Questions
What Is 8011 Aluminum?
8011 VS 8021 Aluminum Foil is an aluminum alloy mainly used for foil products, packaging, and household applications.
Are There Different Grades of Aluminum Foil?
Yes. Common grades include 1235, 3003, 8011, 8021, and 8079 alloys.
Which Alloy Is Better for Pharmaceutical Foil?
8021 aluminum foil is commonly preferred because of its excellent barrier performance.
Which Alloy Is Better for Household Foil?
8011 alloy is widely used for kitchen foil and food packaging.
What Is the Difference Between 8011 and 8021?
8021 foil has better strength, elongation, and pinhole resistance. 8011 foil is more economical and widely used.
Can 8011 Aluminum Foil Be Used for Food?
Yes. 8011 foil is commonly used in food contact applications.
What Is the Typical Thickness of Aluminum Foil?
Common thickness ranges from 0.006 mm to 0.2 mm depending on the application.
Is 8021 Foil Used in Lithium Batteries?
Yes, 8011 aluminum is non-toxic and meets food-grade standards. It does not react with most foods, except for highly acidic or salty items (like lemons or pickles) if stored for a long time.
Yes. 8021 aluminum foil is widely used in battery pouch applications.
Can I use 8011 for medicine packaging?
You can use it for simple “Push-Through” blisters (PTP). However, for medicines that need a total moisture barrier (Cold Form), 8021 is the safer and required choice.
Technical and Usage Questions
What is the difference between “O” and “H18” temper?
- O (Soft): Annealed 8011 VS 8021 Aluminum Foil. It is very flexible and easy to wrap.
- H18 (Hard): Not annealed. it is stiff and used for blister packs that need to “pop” when you push a pill out.
Does thickness affect the barrier property?
Yes. Generally, 8011 VS 8021 Aluminum Foil thicker than 0.025 mm is a total barrier to moisture and oxygen. Foils thinner than that might have tiny pinholes, which is why they are often laminated with plastic.
Market and Pricing Questions
Why is 8021 more expensive than 8011?
The production process for 8021 is more complex. It requires higher purity and specific rolling techniques to ensure the foil can stretch significantly without tearing.
How do I get the best price per kg?
The best way is to buy in “Jumbo Rolls.” Buying large master rolls and slitting them yourself (or having a local factory do it) is much cheaper than buying small retail rolls.
