8111 Aluminum alloy,Aluminum 8111 alloy，E FORU

### **Aluminum 8111 Alloy Technical Datasheet** --- #### **1. Product Overview** **Aluminum 8111** is a specialized wrought aluminum alloy from the 8000 series, specifically designed for foil stock applications requiring excellent formability, good surface quality, and consistent mechanical properties. This non-heat-treatable alloy is particularly optimized for thin-gauge foil production and is widely used in packaging, electrical, and industrial applications where reliable performance and manufacturing efficiency are essential. --- #### **2. Chemical Composition (Weight %)** | Element | Composition Range | Typical Value | |---------|-------------------|---------------| | Aluminum (Al) | Balance | ≥98.5% | | Iron (Fe) | 0.45 - 0.65% | 0.55% | | Silicon (Si) | 0.25 - 0.45% | 0.35% | | Copper (Cu) | ≤ 0.05% | 0.03% | | Manganese (Mn) | 0.05 - 0.15% | 0.10% | | Zinc (Zn) | ≤ 0.08% | 0.05% | | Magnesium (Mg) | ≤ 0.05% | 0.03% | | Titanium (Ti) | ≤ 0.06% | 0.03% | | Other Elements (each) | ≤ 0.03% | - | | Total Other Elements | ≤ 0.10% | - | **Key Composition Features:** - Optimized Fe/Si ratio for superior foil rolling performance - Enhanced purity for excellent surface quality - Controlled alloying elements for consistent mechanical properties - Low impurity levels for improved corrosion resistance - Specifically designed for high-speed foil production --- #### **3. Physical Properties** | Property | Metric Value | Imperial Value | |----------|--------------|----------------| | Density | 2.70 g/cm³ | 0.0975 lb/in³ | | Melting Range | 645-655°C | 1193-1211°F | | Thermal Conductivity | 210-220 W/m·K | - | | Electrical Conductivity | 55-59% IACS | - | | Modulus of Elasticity | 69 GPa | 10.0 × 10⁶ psi | | Coefficient of Thermal Expansion | 23.7 × 10⁻⁶/°C | 13.2 × 10⁻⁶/°F | | Specific Heat Capacity | 900 J/kg·K | - | | Electrical Resistivity | 29-32 nΩ·m | - | --- #### **4. Mechanical Properties** **Typical Properties in Various Tempers:** | Property | O Temper | H14 Temper | H16 Temper | H18 Temper | |----------|----------|-------------|-------------|-------------| | **Tensile Strength (MPa)** | 85-110 | 130-150 | 150-170 | 170-190 | | **Yield Strength (MPa)** | 30-50 | 110-130 | 130-150 | 150-170 | | **Elongation in 50 mm** | 28-38 | 10-14 | 7-11 | 4-7 | | **Tear Strength (N/mm)** | 125-155 | 185-225 | 225-265 | 265-305 | | **Puncture Resistance** | Good | Very Good | Excellent | Superior | **Foil-Specific Properties (6-30μm thickness):** - **Excellent Gauge Control** - **Good Pinhole Resistance** - **Superior Surface Cleanliness** - **Consistent Mechanical Properties** - **Good Fold Endurance** --- #### **5. International Standards** **Primary Specifications:** - **EN 573-3**: Aluminum and aluminum alloys - Chemical composition and form of wrought products - **ISO 209**: Wrought aluminum and aluminum alloys - Chemical composition and forms of products - **GB/T 3190**: Wrought aluminum and aluminum alloy chemical composition (China) **Foil-Specific Standards:** - **EN 602**: Aluminum and aluminum alloys - Wrought products for packaging - **ASTM B479**: Standard Specification for Annealed Aluminum Foil for Flexible Barrier Applications - **ASTM B928**: Standard Specification for High Magnesium Aluminum-Alloy Products **Quality & Safety Standards:** - **FDA CFR 21**: Food contact material compliance - **EU 10/2011**: Food contact material regulations - **ISO 22000**: Food safety management - **BRC-IOP**: Global Standard for Packaging and Packaging Materials --- #### **6. Product Applications** **Flexible Packaging:** - Food packaging foil - Pharmaceutical blister packaging - Confectionery wrappers - Dairy product packaging - Flexible laminates and pouches **Container Applications:** - Lid stock for containers - Screw cap liners - Aseptic packaging systems - Food container foil - Specialty packaging materials **Electrical Applications:** - Cable shielding foil - Transformer winding foil - Capacitor foil - Electrical insulation - Electronic packaging **Industrial Applications:** - Thermal insulation foil - Decorative foil applications - Label stock - Industrial laminate foil - General foil products --- #### **7. Key Characteristics** **Foil Manufacturing Advantages:** - **Excellent Rolling Performance** down to 6μm thickness - **Superior Surface Quality** for printing and coating - **Good Pinhole Resistance** - **Consistent Gauge Control** - **Excellent Annealing Response** **End-Use Performance:** - **Good Barrier Properties** - **Excellent Forming Characteristics** - **Good Heat Sealability** - **Excellent Lacquer Adhesion** - **Consistent Mechanical Properties** --- #### **8. Processing Characteristics** **Foil Production:** - Good rolling performance at high speeds - Consistent tension control during processing - Uniform annealing characteristics - Good surface finish quality - Easy slitting and rewinding operations **Converting Operations:** - Good printing surface characteristics - Adequate coating adhesion properties - Easy laminating performance - Good punching and cutting properties - Reliable heat sealing performance **Quality Parameters:** - Consistent pinhole test results - Good optical density uniformity - Adequate surface cleanliness - Reliable barrier performance - Consistent mechanical properties --- #### **9. Corrosion Resistance & Barrier Properties** **Performance Characteristics:** - **Good Atmospheric Corrosion** resistance - **Adequate Moisture Barrier** properties - **Good Gas Barrier** characteristics - **Satisfactory Aroma Barrier** performance - **UV Light Protection** capability **Barrier Performance:** - **Water Vapor Transmission Rate**: Good - **Oxygen Transmission Rate**: Adequate - **Grease Resistance**: Good - **Chemical Resistance**: Satisfactory for packaging applications --- #### **10. Heat Treatment & Tempers** **Available Foil Tempers:** - **O (Annealed)**: Soft condition for flexible packaging - **H14, H16, H18**: Strain-hardened for rigid containers - **H19**: Extra hard for technical applications - **H22, H24**: Partially annealed for specific applications **Annealing Processes:** - Batch annealing: 300-350°C for 8-12 hours - Continuous annealing: 350-400°C for short durations - Standard annealing for optimal performance --- #### **11. Quality Assurance** **Standard Testing Protocol:** - Pinhole testing per ASTM B926 - Water vapor transmission rate testing - Oxygen transmission rate measurement - Surface cleanliness inspection - Thickness uniformity verification - Mechanical property testing **Certification Requirements:** - Food contact compliance certification - Standard mill test certificates - Material traceability documentation - Regular quality system audits --- #### **12. Comparison with Similar Foil Alloys** | Property | 8111-H18 | 8011-H18 | 1235-H18 | |----------|-----------|-----------|-----------| | Tensile Strength (MPa) | 170-190 | 165-185 | 155-175 | | Elongation (%) | 4-7 | 3-5 | 2-4 | | Pinhole Count | Low | Low | Very Low | | Surface Quality | Very Good | Very Good | Good | | Typical Applications | General packaging | Food packaging | Capacitor foil | --- #### **Conclusion** Aluminum 8111 alloy represents a reliable and versatile material solution for foil applications requiring consistent performance and good manufacturing characteristics. Its optimized chemical composition provides excellent rolling performance and adequate mechanical properties for various packaging and industrial applications. The alloy's balanced characteristics make it suitable for a wide range of foil products, from food packaging to electrical applications, where consistent quality and reliable performance are important considerations. The good processability and consistent behavior of 8111 alloy in manufacturing operations ensure predictable results and efficient production, making it a practical choice for manufacturers seeking a balance between performance and cost-effectiveness in their foil production requirements.

Packing of Standard Packing: Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 2265 gallon liquid totes Special package is available on request.