At Yutwin Aluminum Foil, aluminum foil is more than just a material—it’s a versatile solution that powers industries, protects products, and enhances everyday life. As a trusted global supplier of high-quality aluminum foil, we take pride in delivering materials that meet the most demanding specifications while exceeding customer expectations. Whether you’re in food packaging, construction, electronics, or pharmaceuticals, the right aluminum foil material can make all the difference.

Aluminum foil is celebrated for its unique combination of lightweight strength, excellent thermal and electrical conductivity, and superior barrier properties. But what truly sets aluminum foil apart is its adaptability. From high-purity 1xxx series alloys to advanced 3xxx, 5xxx, and 8xxx series alloys, aluminum foil material directly impacts performance, durability, and application suitability. At Yutwin Aluminum Foil, we understand that the perfect foil isn’t just about alloy composition—it’s about balancing strength, flexibility, corrosion resistance, and conductivity to match your specific needs.

Our materials are engineered to excel in diverse environments. High-purity aluminum foils (1xxx series) offer exceptional ductility and conductivity, making them ideal for food packaging, cable wrapping, and electrical applications. Meanwhile, alloyed foils (such as 3xxx, 5xxx, and 8xxx series) deliver enhanced mechanical strength and corrosion resistance, perfect for demanding applications like construction, appliances, and industrial components. Beyond alloy selection, the material state—ranging from soft annealed (O temper) to hard-rolled (H19 temper)—further tailors performance. Soft foils provide unmatched flexibility for complex forming, while more rigid foils deliver rigidity for structural applications.

At Yutwin Aluminum Foil, we don’t just supply aluminum foil—we partner with you to find the optimal material solution. Our expertise in material science ensures that every foil we produce matches your requirements, whether you need ultra-thin foils for battery applications or robust sheets for architectural designs. With customizable dimensions, from thicknesses as thin as 0.006mm to widths up to 2650mm, we cater to applications ranging from delicate pharmaceutical packaging to heavy-duty industrial uses.

But our commitment doesn’t stop at the material itself. We understand that surface quality is critical. We offer advanced degreasing treatments to ensure our foils are contaminant-free, providing a pristine surface for downstream processes like laminating, printing, or coating. Whether you’re creating composite films with PET, PE, or paper or designing standalone solutions, our aluminum foils are engineered to integrate seamlessly into your workflow.

In today’s fast-paced world, reliability and innovation go hand in hand. Yutwin Aluminum Foil stands at the forefront of material technology, combining decades of industry experience with cutting-edge research to deliver aluminum foil materials that perform under pressure. We work closely with you from concept to delivery to ensure your project succeeds.

Aluminum foil is available in various alloy options

There are various aluminum foil alloys available, each with different properties. Below are some common aluminum foil alloys and their characteristics:

The choice of aluminum foil alloy depends on specific application requirements, such as strength, corrosion resistance, and electrical conductivity. Different alloy series are widely used in various industries.

Characteristics of Aluminum Foil Alloys and Materials

The characteristics of aluminum foil depend not only on its alloy composition but also on the material’s state. Below is a breakdown of the alloy composition, material state, and performance applications:

1. Impact of Alloy Composition on Aluminum Foil Performance

The alloy composition of aluminum foil determines its basic chemical and physical properties, which include:

(1) Strength

• High-purity aluminum foil (1xxx series): Offers low strength and is ideal for applications requiring high ductility and flexibility, such as food packaging and cable covering.
• Alloy aluminum foil (e.g., 3xxxx, 5xxx, 8xxx series): By adding alloys like manganese and magnesium, the strength increases, making it suitable for applications requiring a certain level of fracture toughness, such as building materials and home appliance housings.

(2) Corrosion Resistance

• High-purity aluminum foil: Exhibits good corrosion resistance but is sensitive to specific chemical environments, such as acidic or alkaline conditions.
• Alloy aluminum foil: Adding alloys like magnesium and silicon enhances its corrosion resistance, making it suitable for more complex applications.

(3) Electrical Conductivity

• High-purity aluminum foil: Offers excellent conductivity and is commonly used in electrolytic capacitors and cables.
• Alloy aluminum foil: The addition of alloying elements slightly reduces its conductivity, but it still meets the needs of most projects.

(4) Formability

• High-purity aluminum foil: It has excellent ductility, making it suitable for applications that require intricate shapes.
• Alloy aluminum foil: Adding alloying elements may slightly reduce formability, but it still meets most industrial standards.

2. Impact of Material State on Aluminum Foil Performance

The material state of aluminum foil (such as annealed, half-hard, or hard) significantly influences its mechanical properties and application characteristics:

(1) Annealed State (O-state)

• Characteristics: Achieved through complete annealing treatment, aluminum foil is in its softest state, offering excellent ductility and low strength.
• Applications: Ideal for food packaging, pharmaceutical packaging, and cable covering, where high flexibility is needed.

(2) Half-Hard State (H14, H16, H18)

• Characteristics: Partially cold-worked to achieve a balance between strength and ductility.
• Applications: Suitable for applications requiring moderate strength while maintaining good formability, such as home appliance housings and building decorations.

(3) Hard State (H19)

• Characteristics: Fully cold-worked without annealing, resulting in high strength but minimal ductility.
• Applications: Ideal for applications requiring high wear resistance and rigidity, such as battery foils and electronic components.

3. Combined Effect of Alloy Composition and Material State

The performance of aluminum foil results from the combined effect of alloy composition and material state. For example:

• High-purity aluminum foil (1xxx series) in the annealed state has excellent ductility, making it ideal for food packaging. It is suitable for battery foils and other high-wear applications in the complex state.
• Alloy aluminum foil (e.g., 8xxx series) in the annealed state offers good protection characteristics, making it ideal for pharmaceutical packaging. In the half-hard state, it works well in industrial applications requiring moderate strength.

4. Summary of Major Applications

• Food Packaging: It typically uses high-purity aluminum foil (e.g., 10600, 8011) in annealed or half-hard states.
• Battery Foils: Usually uses high-purity aluminum foil (e.g., 1060, 1070) in the complex state.
• Building and Home Appliances: Alloy aluminum foil (e.g., 3003, 5052) is generally used in half-hard or hard states.
• Cable Covering: This typically uses high-purity aluminum foil (e.g., 1050) in the annealed state (1060).

Aluminum Foil Material Transformation from Soft to Hard

When aluminum foil undergoes treatment from soft to hard and is degreased, its performance and applicability change significantly. Below is a detailed explanation of how aluminum foil transforms from soft to hard and the significance of degreasing treatment:

Changes in Aluminum Foil Material Condition

• Annealed State (O-state): After full annealing treatment, the foil is at its softest, offering excellent ductility and flexibility.
• Half-Hard State (H14, H16, H18): The foil is partially cold-worked to balance strength and ductility.
• Complex State (H19): Fully cold-worked without annealing, providing high strength and minimal ductility.

Degreasing Treatment

Degreasing removes oils, dust, and other impurities from the foil’s surface, improving its quality and preparing it for further processing. The process typically involves soaking in an alkaline solution, followed by cleaning and drying to prevent the alkaline solution from remaining on the surface and causing long-term corrosion.

Aluminum Foil and Roll Material Specifications

Here are the standard specifications for aluminum foil and roll materials and their applications:

• Aluminum Foil Thickness: 0.006mm to 0.2mm.
• Width: 100mm to 2650mm.
• Length: Typically represented as C, indicating roll form.
• Aluminum Roll Thickness: 0.2mm to 8mm.
• Width: 100mm to 2650mm.
• Length: Typically represented as C, indicating roll form.

Application and Dimension Requirements

• Food Packaging: Aluminum foil thickness typically ranges from 0.006mm to 0.012mm, with custom width and length based on packaging requirements.
• Building Decorations: Aluminum rolls typically have widths between 1000mm and 2000 mm and a thickness of 0.2 mm to 1.5 mm.
• Automotive Industry: Aluminum rolls typically have widths between 1000mm and 2000 mm and a thickness of 0.5 mm to 2.0 mm.
• Electronics and Electrical Appliances: Aluminum foil thickness ranges from 0.01mm to 0.2mm, and custom width and length are available based on specific needs.
• Pharmaceutical Packaging: Aluminum foil thickness typically ranges from 0.006mm to 0.015mm, with custom width and length based on packaging requirements.

Aluminum and PET, PE, Composite Films, Paper, and Other Materials

Aluminum foil, combined with materials like PET, PE, composite films, and paper, offers excellent performance and broad application. Below is a detailed description:

Aluminum and PET Composite Bags

• Aluminum Coated PET Film:
  • Characteristics: Manufactured through vacuum metalizing, this film offers a shiny metallic finish, excellent gas and light barrier properties, strong moisture resistance, and heat resistance. It can replace aluminum foil in some applications.
  • Applications: Widely used in food packaging, high-end tobacco packaging, gift boxes, milk powder, tea, pharmaceuticals, and security materials.
• Aluminum-PET Composite Bags:
  • Characteristics: Made from two different materials, combining the benefits of aluminum foil and PET, these bags are lightweight and mechanically strong. They offer excellent gas barrier properties, are suitable temperature resistant, are aging-resistant, and are easy to recycle.
  • Applications: Widely used in food, pharmaceuticals, cosmetics, electromagnetic shielding, building materials, and electronics.

Aluminum and PE Composite Bags

• PE Composite Bags:
  • Characteristics: Multi-layer structure combining polyethylene (PE) film with adhesives (e.g., OP, OPA, OPET, aluminum, paper). These bags offer flexibility, moisture resistance, oxygen barrier properties, and light-blocking ability.
  • Applications: Commonly used in packaging for food, daily goods, and chemicals.

Aluminum and Paper Composite Bags

• Paper-Based Aluminum Plastic Composite Material:
  • Characteristics: A composite material of paper, aluminum foil, and plastic. It provides flexibility, moisture resistance, oxygen barrier properties, and light-blocking ability.
  • Applications: It is suitable for food packaging and high-end gift packaging. It helps control contents, extends shelf life, and enhances the packaging’s aesthetic and functional capabilities.

This comprehensive guide helps you choose the right aluminum foil material for your application needs. Yutwin Aluminum Foil ensures the highest quality and adaptability across various industries.

At Yutwin Aluminum Foil, we’re driven by a simple mission: to deliver aluminum foil materials that empower your success. Our comprehensive range of foils, from high-purity 1xxx series to advanced alloyed variants, ensures a solution tailored to every application. Whether you need the unmatched conductivity of annealed high-purity foils for electrical components, the durability of hard-rolled alloy foils for construction, or the precision of ultra-thin battery foils, we have you covered.

But we don’t just stop at supplying materials. We recognize that the right aluminum foil is more than alloy composition—it’s about understanding how material temper, dimensions, and surface treatment impact performance. Our annealed foils (O temper) offer unparalleled flexibility for packaging and forming, while our semi-hard (H14-H18) and hard-rolled (H19) foils provide the strength needed for structural applications. With customizable thicknesses, widths, and lengths, we ensure your foil fits seamlessly into your production process, whether you’re working in food packaging, electronics, or automotive manufacturing.

Quality is at the heart of everything we do. Our rigorous degreasing processes guarantee that every foil we produce is free from contaminants, ensuring optimal laminating, printing, or coating adhesion. This attention to detail extends to our composite solutions, where aluminum foil combines with PET, PE, or paper to create materials that balance barrier properties, flexibility, and aesthetics. From food and pharmaceutical packaging to electromagnetic shielding and decorative applications, our composites deliver performance without compromise.

We’re proud to be more than just a supplier—we’re a partner in your success. Our team of material experts works closely with you to understand your unique challenges and deliver solutions that exceed expectations. Whether launching a new product, optimizing an existing process, or exploring innovative applications, Yutwin Aluminum Foil supports you at every step.

In an industry where precision matters, trust Yutwin Aluminum Foil to deliver materials that perform. Our commitment to innovation, quality, and customer collaboration ensures that your aluminum foil material needs are met and surpassed. Ready to elevate your project? Contact us today to discover how Yutwin Aluminum Foil can transform your vision into reality.