1235 Aluminum
| Parameter | Specification |
|---|---|
| Alloy | 1235 Aluminum |
| Aluminum Content | ≥99.35% |
| Temper | O, H18; other tempers subject to confirmation |
| Thickness | 0.006–0.20 mm |
| Width | Customized |
| Main Applications | Flexible Packaging, Foil Tape, Cable Shielding, Industrial Laminates |
| Standard | ASTM B479, where applicable |
What is 1235 Aluminum
1235 aluminum is a commercially pure aluminum alloy in the 1000 series, containing at least 99.35% aluminum. Its high purity provides excellent electrical and thermal conductivity, corrosion resistance, and flexibility, making it particularly suitable for thin-gauge aluminum foil production.
1235 aluminum foil offers good rolling performance, a smooth surface, and reliable barrier properties against light, moisture, and gases when used in an appropriate structure. Its soft O temper supports bending, wrapping, and lamination, while the H18 temper provides higher strength for applications requiring harder foil.
Manufacturers commonly use 1235 aluminum for flexible packaging, aluminum foil tape, cable shielding, electrical insulation, and industrial laminates. Buyers can select suitable thicknesses, widths, tempers, and roll dimensions according to their processing methods and end-use requirements.
1235 Aluminum Chemical Composition (Max. wt.%)
| Item | Al | Si + Fe | Cu | Mn | Mg | Zn | Ti | V | Ga | Other elements (each) |
|---|---|---|---|---|---|---|---|---|---|---|
| Content (wt %) | ≥ 99.35 | ≤ 0.65 (combined) | ≤ 0.05 | ≤ 0.05 | ≤ 0.05 | ≤ 0.10 | ≤ 0.06 | ≤ 0.05 | ≤ 0.03 | ≤ 0.03 |
1235 Aluminum Physical Properties
Density
2.70 g/cm³
Melting Range
646 – 657 °C
Thermal Conductivity
230 W/m·K
Electrical Conductivity
60 – 62 % IACS
Electrical Resistivity
2.8 × 10⁻⁸ Ω·m
Elastic Modulus
69 GPa
Poisson's Ratio
0.33
Specific Heat Capacity
900 J/kg·K
Shear Modulus
26 GPa
Coefficient of Thermal Expansion
23.6 µm/m·°C
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1235 Aluminum Mechanical Properties With Diffirent Tempers
| Temper | Condition | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Typical Applications |
|---|---|---|---|---|---|
| O | Fully annealed (soft) | 40 – 90 | 15 – 35 | 1 – 25 | Household foil, container foil, wrapping, laminating |
| H22 | Strain-hardened, partially annealed (1/4 hard) | 70 – 110 | 45 – 70 | 2 – 10 | Container foil, formed trays |
| H24 | Strain-hardened, partially annealed (1/2 hard) | 95 – 130 | 65 – 95 | 2 – 8 | Container foil, deep-drawn packaging |
| H14 | Strain-hardened (1/2 hard) | 95 – 135 | 70 – 105 | 1 – 6 | Cable wrapping, general packaging |
| H16 | Strain-hardened (3/4 hard) | 115 – 150 | 90 – 125 | 1 – 4 | Foil for laminates, tapes |
| H18 | Strain-hardened (fully hard) | ≥ 135 – 165 | ≥ 110 | 0.5 – 3 | Pharmaceutical blister foil, lidding foil |
Key Properties of 1235 Aluminum
Low Density
At 2.70 g/cm³, 1235 aluminum is about one-third the weight of steel. Combined with its thin-gauge capability, this makes it ideal for lightweight packaging, wrapping, and laminating materials.
Barrier Performance
Although not a bulk physical constant, a pinhole-free 1235 foil acts as a complete barrier against light, oxygen, moisture, and odors, which is the main reason it is used in food and pharmaceutical packaging.
Good Thermal Conductivity
With a thermal conductivity of about 230 W/m·K, 1235 transfers heat quickly and evenly. This is useful for baking foil, cooking foil, and heat-reflective insulation facing.
High Reflectivity
Bright-finished 1235 foil reflects a high percentage of light and radiant heat, making it suitable for thermal insulation facing and decorative applications.
Good Electrical Conductivity
At about 60–62% IACS, 1235 is suitable for cable shielding foil, cable wrapping tape, and capacitor-related foil.
Non-Magnetic and Non-Toxic
1235 is non-magnetic and non-toxic, so it suits electronic shielding and food-contact use.
Common Surface Treatment of 1235Aluminum
Anodizing
Anodizing forms a protective oxide layer that improves corrosion resistance, surface hardness, and appearance. It is suitable for decorative and architectural applications.
Polishing
Polishing smooths the aluminum surface and creates a bright, clean finish. It is commonly used for decorative parts and reflective components.
Brushing
Brushing creates a uniform linear texture on the surface, providing a modern appearance while reducing the visibility of minor scratches and marks.
Coating
Coating adds a protective or decorative layer to improve weather resistance, corrosion protection, and color durability. Common options include PVDF and powder coating.
Embossing
Embossing creates a textured surface that improves appearance and surface durability while concealing minor imperfections.
Perforating
Perforating creates precisely arranged holes for ventilation, filtration, light transmission, and weight reduction.
Typical Applications of 1235 Aluminum
Household Foil Applications
Its excellent formability and barrier performance make 1235 suitable for kitchen foil, wrapping foil, and food-contact foil.
- Household kitchen foil
- Food wrapping and baking foil
- Barbecue and cooking foil
Food Packaging Applications
Its non-toxic nature and good barrier properties make 1235 suitable for food containers, trays, and lidding materials.
- Semi-rigid container foil
- Food trays and takeaway boxes
- Lidding foil for cups and yogurt
Pharmaceutical Packaging Applications
Its high purity and strong barrier against moisture, light, and oxygen make 1235 suitable for blister packs, strip packs, and medicine packaging.
- Blister foil
- Strip packaging foil
- Pharmaceutical lidding foil
Laminated and Composite Packaging
Its thin gauge and good laminating performance make 1235 suitable for composite films, pouches, and flexible packaging.
- Aluminum-plastic laminated pouches
- Aluminum-paper composite packaging
- Flexible packaging for snacks and beverages
Cable and Electrical Applications
Its good conductivity and thin-gauge flexibility make 1235 suitable for cable wrapping, shielding, and electrical insulation materials.
- Cable shielding foil
- Cable wrapping tape
- Capacitor and electrical foil
Thermal Insulation Applications
Its high reflectivity and light weight make 1235 suitable for insulation facing, heat reflection, and building insulation materials.
- Insulation facing foil
- Reflective building insulation
- Air duct and pipe wrapping
Tobacco Packaging Applications
Its fine surface finish and barrier performance make 1235 suitable for inner liners and wrapping materials.
- Cigarette inner packaging foil
- Cosmetic and perfume packaging foil
- Gift wrapping foil
Standards and Certifications
Product and Material Standards
| Standard | Region / Organization | Scope |
|---|---|---|
| GB/T 3198 | China | Aluminum and aluminum alloy foil: dimensions, tolerances, mechanical properties |
| GB/T 3190 | China | Chemical composition of wrought aluminum and aluminum alloys |
| ASTM B479 | USA | Annealed aluminum and aluminum-alloy foil for flexible barrier, food contact, and other applications |
| EN 546 (Parts 1-4) | Europe | Aluminum and aluminum alloy foil: technical conditions, tolerances, and mechanical properties |
| EN 573-3 | Europe | Chemical composition and form of wrought aluminum products |
| JIS H4160 | Japan | Aluminum and aluminum alloy foils |
Food-Contact and Safety Standards
| Standard / Regulation | Region | Scope |
|---|---|---|
| GB 4806.9 | China | Food-contact metal materials and articles |
| FDA 21 CFR (food contact) | USA | Requirements for materials in contact with food |
| Regulation (EC) No 1935/2004 | EU | General requirements for food-contact materials |
| RoHS / REACH | EU | Restriction of hazardous substances and chemical safety compliance |
Quality, Management, and Industry Certifications
| Certification | Purpose |
|---|---|
| ISO 9001 | Quality management system |
| ISO 14001 | Environmental management system |
| ISO 45001 | Occupational health and safety management |
| ISO 22000 / FSSC 22000 | Food safety management (for food-contact foil) |
| BRC Packaging | Packaging safety and quality for food markets |
| HACCP | Food safety hazard control |
Pharmaceutical Packaging Requirements
| Requirement | Description |
|---|---|
| Pharmaceutical packaging standards (e.g., YBB series in China) | Specifications for aluminum foil used in blister and strip packaging |
| Pharmacopoeia compatibility (USP, EP, ChP) | Material suitability for contact with medicines |
| Pinhole, surface, and wetting tests | Quality checks for barrier performance and printing/coating adhesion |
Reliable Aluminum Supply Backed by Quality & Expertise
From strict quality control to global export experience and professional technical support, Huawei Aluminum provides dependable solutions for customers worldwide.
Strict Quality Control
Huawei Aluminum checks chemical composition, dimensions, mechanical properties, and surface quality throughout production. ISO certification and third-party inspection are also available.
Global Export Experience
With more than 20 years of industry experience and products supplied to 72 countries, Huawei Aluminum supports reliable international supply and logistics.
Professional Technical Support
Our technical team provides guidance on alloy, temper, dimensions, surface finish, packaging, and application requirements to help customers select the right aluminum product.
1235 Aluminum vs Other Aluminum Alloys
| Property | 1235 | 1145 | 1100 | 8011 | 8079 | 3003 |
|---|---|---|---|---|---|---|
| Alloy Series | 1xxx | 1xxx | 1xxx | 8xxx | 8xxx | 3xxx |
| Aluminum Content (min) | 99.35% | 99.45% | 99.00% | about 97.5% (alloyed) | about 97.5% (alloyed) | about 96.8% (alloyed) |
| Main Alloying Elements | Si + Fe ≤ 0.65% | Si + Fe ≤ 0.55% | Si + Fe ≤ 0.95%, Cu 0.05–0.20% | Fe 0.6–1.0%, Si 0.5–0.9% | Fe 0.7–1.3%, Si 0.05–0.30% | Mn 1.0–1.5% |
| Strength | Low | Low | Low to medium | Medium | Medium to high | Medium |
| Elongation / Formability | Very good | Very good | Very good | Good | Very good | Good |
| Pinhole Performance (thin foil) | Good | Very good | Fair | Good | Very good | Fair |
| Corrosion Resistance | Excellent | Excellent | Excellent | Good | Good | Very good |
| Heat Treatable | No | No | No | No | No | No |
FAQs
A foil alloy with at least 99.35% aluminum. It is soft in the O temper and widely used for flexible packaging, household foil, foil tape and cable foil.
8011 has higher tensile strength and is common for containers, pharmaceutical packaging and industrial foil. 1235 is softer and more economical, and is the usual choice for thin laminated packaging.
0.006 to 0.05 mm (6 to 50 microns), in widths from 90 to 1600 mm. Packaging laminates normally use 6 to 9 microns.
Yes. We provide free samples; the buyer pays shipping.
Every batch is inspected three times before shipment, and an ISO or SGS third party can inspect before delivery.
Yes. Send your drawing, alloy, gauge, width, core and any lamination, coating or embossing needs.
Certificates
Huawei Aluminum has been deeply involved in the rolled aluminum alloy industry for many years and has obtained a variety of certifications.
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- TEL: +86 18137782032
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