Xi'an Dongmeng Group Co., Ltd. is one of the most reliable manufacturers and suppliers of 3003 Aluminum Foil Supplier | High Strength Al-Mn Alloy Foil for Industrial & Packaging Applications in China, also supports customized service. With abundant experience, we warmly welcome you to wholesale cheap products in stock here and get free sample from our factory. For price consultation, contact us.
What is 3003 Aluminum Foil?
3003 aluminum foil belongs to the Al-Mn alloy series (3xxx series), containing manganese (Mn 1.0–1.5%), which significantly improves:
Corrosion resistance
Mechanical strength
Formability
Unlike heat-treatable alloys, 3003 gains strength through cold working.
3003 Aluminum Foil is a manganese-alloyed aluminum foil offering excellent corrosion resistance, good formability, and superior weldability, making it one of the most widely used alloys in the 3xxx aluminum series. Produced in compliance with ASTM B209, EN 573, and GB/T 3190 standards, 3003 foil provides a perfect balance between mechanical strength and lightweight performance, making it ideal for heat exchangers, air conditioner fins, insulation, and industrial packaging.
Our factory manufactures 3003 aluminum foil rolls in various tempers (O, H14, H18) and thicknesses from 0.02 mm to 0.2 mm, with mill finish, hydrophilic, or coated surfaces. With advanced rolling mills, continuous annealing lines, and online surface inspection, we ensure tight thickness tolerance, smooth appearance, and stable mechanical properties for consistent quality and global export.
Why Choose 3003 Aluminum Foil?
Compared to 1100/1060 aluminum foil:
+20% higher strength
Better anti-corrosion performance
More stable in humid environments
Compared to 8011 aluminum foil:
Better structural rigidity
More suitable for industrial forming
Technical Specifications of 3003 Aluminum Foil
| Item | Specification / Description |
|---|---|
| Product Name | 3003 Aluminum Foil |
| Standard | ASTM B209, EN 573, GB/T 3190 |
| Alloy Composition | 3003 (Al-Mn Alloy) |
| Temper | O, H12, H14, H16, H18 |
| Thickness Range | 0.02 mm – 0.2 mm |
| Width Range | 30 mm – 1600 mm |
| Core Inner Diameter | 76 mm / 152 mm (Paper or Aluminum Core) |
| Surface Finish | Mill Finish, Bright, Hydrophilic, Epoxy Coated |
| Tensile Strength | 90 – 150 MPa (depending on temper) |
| Elongation | 3% – 20% |
| Density | 2.73 g/cm³ |
| Thermal Conductivity | 193 W/m·K |
| Electrical Conductivity | 40% IACS |
| Corrosion Resistance | Excellent, especially in moist or salt-laden environments |
| Formability | Excellent |
| Weldability | Excellent |
| Packing | Standard export seaworthy wooden pallets or cases |
| MOQ | 500 – 1000 kg per size |
| Lead Time | 15 – 25 working days |
| Monthly Capacity | 1,000 tons per month |
| Certification | ISO 9001, SGS, RoHS, REACH |
| Origin | China |
| OEM/ODM Service | Available – slitting, coating, and embossing per customer need |
Properties of 3003 Aluminum Foil
Chemical Composition
3003 aluminum foil belongs to the AL - Mn series alloy. Its main alloying element is manganese (Mn), which typically accounts for about 1.0 - 1.5% by weight. In addition to manganese, it also contains a small amount of other elements such as iron (Fe) ≤ 0.7%, silicon (Si) ≤ 0.6%, copper (Cu) ≤ 0.05%, and the balance is aluminum (Al). This chemical composition endows 3003 aluminum foil with unique properties.
Mechanical Properties
Strength: The strength of 3003 aluminum foil is approximately 10% higher than that of 1100 aluminum foil. Its tensile strength can range from 110 - 160 MPa in the H14 temper condition, which makes it suitable for applications that require a certain level of mechanical strength.
Formability: It has excellent formability, allowing it to be easily formed into various shapes through processes such as deep drawing, stamping, and bending. This property is crucial for applications like the production of aluminum foil containers and packaging.
Ductility: 3003 aluminum foil also exhibits good ductility, which means it can be stretched without cracking, ensuring smooth processing during manufacturing.
Physical Properties
Thermal Conductivity: With a relatively high thermal conductivity of about 155 - 175 W/(m·K) at room temperature, 3003 aluminum foil is an ideal material for heat transfer applications. It can quickly transfer heat, making it useful in heat exchangers and thermal insulation materials.
Electrical Conductivity: Although not as good as pure aluminum, 3003 aluminum foil still has decent electrical conductivity, which enables it to be used in some electrical applications where electrical shielding or grounding is required.
Reflectivity: It has a high reflectivity for both light and heat. The shiny surface of 3003 aluminum foil can reflect a large amount of radiant heat, which is why it is often used in insulation materials to reduce heat transfer by radiation.
Corrosion Resistance
One of the most prominent features of 3003 aluminum foil is its excellent corrosion resistance. The manganese in the alloy forms a protective oxide film on the surface of the aluminum foil when exposed to the air. This oxide film is dense and stable, effectively preventing the aluminum from further oxidation and corrosion. As a result, 3003 aluminum foil can be used in various environments without significant degradation over time. This makes it suitable for applications such as food packaging, where contact with moisture and other substances is common.
Applications of 3003 Aluminum Foil
1.Food Packaging
● Aluminum Foil Containers: 3003 aluminum foil is widely used to make aluminum foil containers for food packaging. These containers are lightweight, yet strong enough to hold food products. They can be used for baking, freezing, and storing food. For example, aluminum foil baking pans are popular for baking cakes, pies, and roasting meats. The excellent formability of 3003 aluminum foil allows for the production of containers with various shapes and sizes to meet different packaging needs.
● Food Wrapping: It is also commonly used for wrapping food items. The high barrier properties of 3003 aluminum foil can effectively block oxygen, moisture, and light, which helps to extend the shelf life of food products. Whether it's wrapping sandwiches, cheese, or other perishable foods, 3003 aluminum foil provides a reliable way to keep the food fresh.
2.Electronics Industry
● Electrolytic Capacitor Foil: In the electronics industry, 3003 aluminum foil is used as a raw material for making electrolytic capacitor foils. The aluminum foil undergoes a series of processing steps to form a porous structure, which is then used in the production of electrolytic capacitors. These capacitors are widely used in electronic circuits to store and release electrical energy. The high purity and good mechanical properties of 3003 aluminum foil are essential for ensuring the quality and performance of electrolytic capacitors.
● Heat Sinks: Due to its good thermal conductivity, 3003 aluminum foil can be used in the manufacturing of heat sinks. Heat sinks are used to dissipate heat generated by electronic components such as CPUs and power transistors. The aluminum foil can be formed into fins or other structures to increase the surface area for heat dissipation, helping to keep electronic devices operating at a stable temperature.
3.Other Applications
● Medical Packaging: 3003 aluminum foil is used in medical packaging to ensure the sterility and integrity of medical products. It can protect medical devices and pharmaceuticals from moisture, oxygen, and contaminants, maintaining their quality and safety.
● Cosmetics Packaging: In the cosmetics industry, 3003 aluminum foil is used for packaging products such as creams, lotions, and powders. Its attractive appearance and good barrier properties make it a popular choice for cosmetic packaging, helping to preserve the quality of the products and enhance their marketability.
Manufacturing Process of 3003 Aluminum Foil
The production of 3003 aluminum foil starts with high - quality aluminum ingots. These ingots are carefully selected to ensure they meet the strict chemical composition requirements for 3003 alloy. Scrap aluminum of the appropriate alloy can also be recycled and used in the production process, which is both cost - effective and environmentally friendly. The raw materials are then melted in a furnace at a high temperature, typically around 700 - 750 °C. During the melting process, various alloying elements are added in precise amounts to achieve the desired chemical composition of 3003 aluminum.
After melting and alloying, the molten aluminum is cast into slabs or billets. There are different casting methods, such as direct - chill casting and continuous casting. In direct - chill casting, the molten aluminum is poured into a mold, and water is used to cool the outside of the mold, solidifying the aluminum. Continuous casting, on the other hand, allows for a continuous production process, where the molten aluminum is continuously fed into a casting machine and formed into a long slab or billet. The cast slabs or billets are then carefully inspected for any defects before proceeding to the next step.
The cast slabs or billets are pre - heated to a suitable temperature, usually in the range of 400 - 500 °C, and then subjected to hot rolling. Hot rolling helps to break down the coarse grain structure of the cast aluminum and improves its mechanical properties. During hot rolling, the slab or billet is passed through a series of rolling mills, where the thickness is gradually reduced. The hot - rolled aluminum sheet is then coiled for further processing.
The hot - rolled coils are further processed by cold rolling. Cold rolling is carried out at room temperature or slightly elevated temperatures. This process further reduces the thickness of the aluminum sheet and improves its surface finish and dimensional accuracy. Multiple passes of cold rolling may be required to achieve the desired thickness of the aluminum foil. The cold - rolled aluminum sheet is also annealed at appropriate intervals to relieve internal stresses and improve its formability.
Once the cold - rolled aluminum sheet reaches a certain thickness, it is ready for foil rolling. Foil rolling is a specialized process that reduces the thickness of the aluminum sheet to the thickness of foil, which can range from a few micrometers to 200 micrometers. In foil rolling, special rolling mills with highly polished rolls are used to achieve a smooth and uniform surface on the foil. The rolling process is carefully controlled to ensure the foil has the correct thickness, flatness, and mechanical properties.
After foil rolling, the large - width aluminum foil rolls are slit into smaller rolls of the desired width according to customer requirements. The slit rolls are then carefully inspected for any defects such as holes, wrinkles, or surface scratches. Finally, the qualified aluminum foil rolls are packaged in suitable packaging materials to protect them during storage and transportation.
Quality Control of 3003 Aluminum Foil
Chemical Composition Testing
To ensure the 3003 aluminum foil meets the specified chemical composition, regular sampling and testing are carried out. Advanced analytical techniques such as optical emission spectroscopy (OES) and X - ray fluorescence (XRF) are used to accurately determine the content of various elements in the aluminum foil. Any deviation from the standard chemical composition can affect the properties and performance of the aluminum foil, so strict control is essential.
Mechanical Property Testing
Mechanical property testing is also an important part of quality control. Tests such as tensile testing, hardness testing, and bend testing are performed to evaluate the strength, hardness, and formability of the 3003 aluminum foil. Tensile testing measures the maximum force the foil can withstand before breaking, while hardness testing determines the resistance of the foil to indentation. Bend testing assesses the ability of the foil to be bent without cracking. These tests help to ensure that the aluminum foil meets the mechanical property requirements for different applications.
Dimensional Inspection
Dimensional inspection is crucial to ensure that the 3003 aluminum foil has the correct thickness, width, and length. Precision measuring instruments such as micrometers, calipers, and laser - based measuring systems are used to measure the thickness and width of the foil. The length of the foil rolls is also carefully checked to ensure they meet the specified requirements. Any dimensional variation can affect the performance and usability of the aluminum foil in downstream applications.
Surface Quality Inspection
The surface quality of 3003 aluminum foil is closely inspected to ensure there are no defects such as holes, black spots, scratches, or wrinkles. Visual inspection is usually the first step, where trained inspectors carefully examine the surface of the foil for any visible defects. In addition, non - destructive testing methods such as light scattering inspection and electron microscopy may be used to detect micro - defects that are not visible to the naked eye. A high - quality surface is essential for applications such as food packaging and electronics, where the integrity of the foil surface can affect the quality of the final product.
Why Choose Our 3003 Aluminum Foil
Advanced Manufacturing Technology
Our company utilizes state - of - the - art manufacturing technology to produce 3003 aluminum foil. We have invested in the latest rolling mills, casting equipment, and quality control systems to ensure the highest quality products. Our production process is optimized to achieve consistent quality and high production efficiency.
01
Stringent Quality Control
We adhere to strict quality control standards at every stage of production, from raw material procurement to the final packaging of the aluminum foil. Our comprehensive quality control measures ensure that each roll of 3003 aluminum foil leaving our factory meets or exceeds international quality standards.
02
Customization Options
We understand that different customers have different requirements for 3003 aluminum foil. That's why we offer a wide range of customization options, including different thicknesses, widths, tempers, and surface treatments. Whether you need aluminum foil for food packaging, electronics, or other applications, we can provide you with the perfect solution.
03
Competitive Pricing
Despite our high - quality products and excellent service, we offer competitive pricing for our 3003 aluminum foil. We strive to provide our customers with the best value for their money, making our products accessible to a wide range of industries and customers.
04
Excellent Customer Service
Our dedicated customer service team is always ready to assist you. Whether you have questions about our products, need technical support, or want to place an order, we will respond promptly and provide you with the information and assistance you need.
05
3003 vs Other Aluminum Foils
| Alloy | Strength | Corrosion Resistance | Best Use Case |
|---|---|---|---|
| 3003 | ⭐⭐⭐⭐ | ⭐⭐⭐⭐ | Industrial + structural use |
| 1100 | ⭐⭐ | ⭐⭐⭐⭐⭐ | Soft packaging |
| 8011 | ⭐⭐⭐ | ⭐⭐⭐⭐ | Food packaging lids |
| 5052 | ⭐⭐⭐⭐⭐ | ⭐⭐⭐⭐⭐ | Marine / high strength |
When to Use 3003 Aluminum Foil
Choose 3003 aluminum foil when:
You need stronger foil than pure aluminum
You need stable forming in industrial production
You operate in humid / corrosive environments
You require cost-efficient structural material
👉 If your project is "functional + structural", 3003 is the correct choice.
Quality Assurance System
🏭 Manufacturing Standards
ASTM B209 compliant
EN 485 standard production
ISO-certified production system
Third-party inspection available
📦 Quality Control
Thickness inspection (online + offline)
Surface defect detection
Mechanical testing before shipment
Coil weight verification
Supply & Commercial Terms
📦 Supply Conditions
MOQ: 500–2000 kg
Lead time: 7–20 days
Packaging: Export wooden case / pallet
Surface: Mill finish / coated available
💰 Pricing Structure
Price depends on:
Thickness
Temper
Quantity
Surface treatment
👉 Send RFQ for exact quotation within 12 hours.
FAQ – 3003 Aluminum Foil
Q1: What makes 3003 Aluminum Foil special compared to 1050 or 8011 foil?
A1: 3003 foil contains manganese, giving it higher strength and better corrosion resistance, ideal for industrial and heat exchange applications.
Q2: What tempers are available for 3003 aluminum foil?
A2: Common tempers include O (soft) for forming, and H14, H16, H18 for strength and rigidity.
Q3: Is 3003 aluminum foil suitable for food contact?
A3: Yes, 3003 alloy is non-toxic and safe for indirect food packaging, but it's more commonly used for industrial and HVAC foil applications.
Q4: Can 3003 foil be hydrophilic coated?
A4: Yes, it can be treated with hydrophilic or epoxy coatings for enhanced heat exchange efficiency and anti-corrosion protection in air conditioner fins.
Q5: What are typical thicknesses for 3003 aluminum foil?
A5: Standard thicknesses range from 0.02 mm to 0.2 mm, with common gauges being 0.05 mm, 0.1 mm, and 0.15 mm.
Q6: What quality certifications can you provide?
A6: We supply ISO 9001, SGS, RoHS, REACH, and Mill Test Certificates (MTC) for every production batch.
Q7: What is your production lead time?
A7: Normally 15–25 working days, depending on order size, surface finish, and custom requirements.
Looking for a dependable 3003 Aluminum Foil manufacturer and exporter?
We supply high-quality anti-corrosion and hydrophilic aluminum foil rolls tailored for your industrial and HVAC needs.
Our address
Room 4107, Runfeng Building, Sanqiao New Street, Weiyang District, Xi'an City, Shaanxi Province
Phone Number
+86 15769214734
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