What is 1235 Aluminum Foil?
1235 aluminum foil is a representative product of the 1000 series pure aluminum foil, with an aluminum content of no less than 99.35%, making it a high-purity aluminum foil. Thanks to its high purity, it exhibits outstanding performance in ductility, electrical conductivity, and corrosion resistance. It is widely used in cable foil, tape foil, and lithium battery cathodes.
Specifications of 1235 Aluminum Foil
The 1235 aluminum foil produced by Worthwill covers mainstream industrial specifications and supports on-demand customization:
| Item | Parameters |
| Typical Alloy | 1235 |
| Material Temper | O, H18 |
| Thickness | 0.006mm - 0.5mm |
| Width | 100mm - 1700mm |
| Length | Customizable |
| Executive Standard | ASTM B479 / AMS-QQ-A-1876 |
The O temper (annealed) offers the best ductility, suitable for deep drawing and forming; the H18 temper is a full-hard state with higher tensile strength, making it ideal for applications that require strength support.
Surface Treatment & Customization Capabilities
Worthwill not only provides 1235 aluminum foil base materials but also possesses a variety of surface treatment and processing capabilities, offering one-stop customization services based on customers' actual needs.
- Color Coated:Coated with multi-color layers on the surface, offering uniform color and strong adhesion. Commonly used in food, pharmaceutical, and consumer goods packaging to enhance product appearance and brand recognition.
- Embossed:Pressed with regular or custom textures through molds to enhance surface strength and anti-slip properties. Suitable for thermal insulation materials, kitchen foil, and decorative materials.
- Anodized:An electrochemical process creates a dense oxide film, improving corrosion resistance and surface hardness. It combines insulation and decorative functions, suitable for high-demand industrial scenarios.
- Hydrophilic Coated:Allows condensed water to disperse evenly, effectively improving heat exchange efficiency. Mainly used in air conditioning fins and heat exchangers.
- Hydrophobic Treated:Grants the surface excellent water-draining and moisture-proof properties, preventing condensed water accumulation. Suitable for industrial and packaging scenarios with high moisture-proof requirements.
- Heat Sealing Coated:Can be directly heated to complete the seal, eliminating the need for an extra adhesive process. Widely used in pharmaceutical blister packaging and food tray sealing.
Chemical Composition of 1235 Aluminum Foil
The chemical composition of 1235 aluminum foil is strictly controlled. The element content is as follows:
| Element | Content (Mass Fraction) |
| Aluminum (Al) | ≥ 99.35% |
| Silicon + Iron (Si+Fe) | ≤ 0.65% |
| Copper (Cu) | ≤ 0.05% |
| Manganese (Mn) | ≤ 0.05% |
| Magnesium (Mg) | ≤ 0.05% |
| Zinc (Zn) | ≤ 0.10% |
| Titanium (Ti) | ≤ 0.06% |
| Vanadium (V) | ≤ 0.05% |
| Other Individual Elements | ≤ 0.03% |
The high aluminum content ensures the stability and purity of the material, making it reliable for use in high-demand scenarios such as food-grade, pharmaceutical-grade, and electronic-grade applications.
Mechanical Properties of 1235 Aluminum Foil
The mechanical properties of 1235 aluminum foil vary depending on the thickness and temper:
1235 O Aluminum (Annealed State)
| Thickness Range (mm) | Tensile Strength (MPa) | Elongation |
| 0.006 - 0.009 | 35 - 100 | ≥ 0.5% |
| 0.010 - 0.024 | 40 - 100 | ≥ 1% |
| 0.025 - 0.040 | 45 - 100 | ≥ 2% |
| 0.041 - 0.089 | 45 - 100 | ≥ 4% |
| 0.090 - 0.139 | 50 - 100 | ≥ 6% |
| 0.140 - 0.200 | 50 - 100 | ≥ 10% |
1235 H18 Aluminum (Full Hard State)
| Thickness Range (mm) | Tensile Strength (MPa) |
| 0.006 - 0.200 | ≥ 135 |
Performance Advantages of 1235 Aluminum Foil
- High Purity and Stable Performance:With an aluminum content of ≥99.35%, impurity elements are strictly controlled, ensuring high batch-to-batch consistency to meet the stability requirements of large-scale production.
- Excellent Ductility and Easy Processing:In the O temper, the elongation can reach over 10%. Secondary processing such as stamping, winding, and folding can be easily handled, effectively reducing processing loss.
- Anti-Rust, Corrosion-Resistant, and Long Service Life:A dense oxide film forms naturally on the surface, keeping it stable in complex environments like moisture, acid, and alkali without needing extra anti-corrosion treatment.
- Outstanding Shielding and Barrier Properties:It has an excellent shielding effect against water vapor, light, odors, ultraviolet rays, and electromagnetic interference, making it an ideal material for packaging and electronic shielding.
- Reliable Electrical and Thermal Conductivity:With a thermal conductivity of approx. 230 W/m·K and an electrical resistivity of approx. 2.80×10⁻⁶Ω·cm, it is widely used in electronic components such as battery current collectors and capacitors.
Main Applications of 1235 Aluminum Foil
Cable Shielding Foil
Recommended Specifications: 1235-O temper, thickness 0.006mm - 0.04mm.
After aluminum-plastic lamination, it is processed into narrow strips and wrapped around the outer layer of weak current cables to provide reliable electromagnetic shielding protection.
Tape Foil
Recommended Specifications: 1235-O temper, thickness 0.01mm - 0.05mm.
Processed into aluminum foil tape, it is used for electromagnetic shielding parts in transformers, mobile phones, computers, LED displays, and other electronic products.
Lithium Battery Foil
Recommended Specifications: 1235-H18 temper, thickness 0.012mm - 0.035mm.
Serving as the mainstream material for lithium-ion battery cathode current collectors, its high purity ensures conductivity, while the full hard temper provides necessary strength support.
Aluminum Foil for Capacitors
Recommended Specifications: 1235-O temper, thickness 0.0045mm - 0.009mm.
Used in electronic capacitor manufacturing in combination with oil-impregnated paper. It requires extremely high material purity and surface cleanliness.
Food and Pharmaceutical Packaging
1235 aluminum foil is non-toxic and odorless, offering excellent moisture-proof, gas-barrier, and light-shielding properties. When laminated with plastic or paper, its shielding performance is further enhanced.
Other Applications
Building thermal insulation, vehicle and ship insulation materials, decorative gold and silver threads, wallpapers, and bottle cap materials are also common uses for 1235 aluminum foil.
Why Choose Worthwill's 1235 Aluminum Foil?
Henan Worthwill Industry Co., Ltd. (Worthwill) is a professional aluminum processing enterprise in Henan Province. Our main products cover aluminum foil, aluminum sheets, aluminum coils/strips, aluminum circles, and color-coated aluminum series.
- Production Capacity:Equipped with complete aluminum foil production lines, we can undertake multi-specification 1235 aluminum foil orders. We support flexible order processing, ranging from small-batch trial samples to large-scale stable supply.
- Quality Control:We use advanced thickness measurement equipment to implement precise control over the outbound thickness. Every batch of products undergoes strict quality inspections to ensure mechanical properties, surface quality, and chemical composition meet standard requirements.
- Delivery Cycle:Standard orders are delivered within 7 to 45 days. Urgent needs can be negotiated and arranged accordingly. We also maintain a spot inventory for quick shipping.
- Global Export:Our products have been exported to multiple countries and regions. With comprehensive international trade experience, we can provide export wooden boxes or wooden pallet packaging to meet moisture-proof and shock-proof transportation requirements.
- Customization Services:We support the customization of thickness, width, temper, and quantity according to customer requirements. You are welcome to provide specific technical parameters for a quotation.
1235 Aluminum Foil Price Description
The price of 1235 aluminum foil consists of two parts: the market price of aluminum ingots plus production and processing fees. Since the price of aluminum ingots fluctuates with the market, the aluminum foil quotation is not fixed.
To obtain an accurate quote, we recommend providing the following information when inquiring: the required alloy temper (O or H18), thickness, width, quantity, and any special performance requirements. The Worthwill sales team will provide the most reasonable procurement plan based on your specific needs.
Contact Worthwill
For detailed technical parameters, product quotations, or customized solutions regarding 1235 aluminum foil, please feel free to contact us at any time.
We look forward to becoming your reliable aluminum foil raw material supply partner.
