8021B Aluminum alloy,Aluminum 8021B alloy，E FORU

### **Aluminum 8021B Alloy Technical Datasheet** --- #### **1. Product Overview** **Aluminum 8021B** is a premium-grade wrought aluminum alloy representing the highest quality tier within the 8021 series. This specialized non-heat-treatable alloy features ultra-tight compositional controls and advanced manufacturing processes, making it particularly suitable for the most demanding foil applications where exceptional purity, superior surface quality, and consistent performance are critical requirements. --- #### **2. Chemical Composition (Weight %)** | Element | Composition Range | Typical Value | |---------|-------------------|---------------| | Aluminum (Al) | Balance | ≥98.4% | | Iron (Fe) | 0.63 - 0.75% | 0.69% | | Silicon (Si) | 0.45 - 0.55% | 0.50% | | Copper (Cu) | ≤ 0.02% | 0.01% | | Manganese (Mn) | 0.12 - 0.16% | 0.14% | | Zinc (Zn) | ≤ 0.03% | 0.02% | | Magnesium (Mg) | ≤ 0.03% | 0.02% | | Titanium (Ti) | ≤ 0.03% | 0.02% | | Vanadium (V) | ≤ 0.03% | 0.02% | | Other Elements (each) | ≤ 0.01% | - | | Total Other Elements | ≤ 0.06% | - | **Premium Composition Features:** - Ultra-tight Fe/Si ratio control (1.35-1.40) for optimal performance - Exceptional purity with minimal trace elements - Enhanced consistency in alloy composition - Superior control of intermetallic formation - Specifically engineered for critical applications --- #### **3. Physical Properties** | Property | Metric Value | Imperial Value | |----------|--------------|----------------| | Density | 2.71 g/cm³ | 0.0979 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 | 23.6 × 10⁻⁶/°C | 13.1 × 10⁻⁶/°F | | Specific Heat Capacity | 900 J/kg·K | - | | Electrical Resistivity | 29.2-31.4 nΩ·m | - | --- #### **4. Mechanical Properties** **Premium Properties in Various Tempers:** | Property | O Temper | H14 Temper | H16 Temper | H18 Temper | H19 Temper | |----------|----------|-------------|-------------|-------------|------------| | **Tensile Strength (MPa)** | 100-125 | 140-160 | 160-180 | 180-200 | 200-220 | | **Yield Strength (MPa)** | 45-65 | 120-140 | 140-160 | 160-180 | 180-200 | | **Elongation in 50 mm** | 32-42 | 14-18 | 10-14 | 6-9 | 5-7 | | **Tear Strength (N/mm)** | 150-180 | 210-250 | 250-290 | 290-330 | 330-370 | | **Puncture Resistance** | Premium | Maximum | Ultra | Exceptional | Superior | **Ultra-Premium Foil Properties (6-20μm thickness):** - **Exceptional Gauge Control** (±1.5%) - **Ultra-low Pinhole Density** (<3 pinholes/m² for 20μm) - **Premium Surface Cleanliness** - **Superior Tensile Consistency** - **Enhanced Fold Endurance** (>15,000 cycles) --- #### **5. International Standards** **Ultra-Premium Specifications:** - **EN 573-3** (Ultra Premium Grade): Aluminum and aluminum alloys - **ISO 209** (Class AA): Wrought aluminum and aluminum alloys - **GB/T 3190-2020** (Ultra Premium): Wrought aluminum chemical composition **Highest Grade Product Standards:** - **EN 602** (Class AA): Aluminum wrought products for packaging - **ASTM B479** (Ultra Premium): Annealed Aluminum Foil - **ASTM B928** (Premium Plus): High Magnesium Aluminum-Alloy Products **Premium Certifications:** - **FDA CFR 21** Compliant (Premium Grade) - **EU 10/2011** Compliant (Highest Grade) - **ISO 22000** Certified (Premium) - **BRC-IOP** Grade AA - **FSSC 22000** Certified (Premium) --- #### **6. Product Applications** **Critical Pharmaceutical Packaging:** - High-potency drug blister packaging - Injectable medical device packaging - Clinical trial material packaging (Phase I-III) - Diagnostic and medical test packaging - Hospital sterile packaging **Ultra-Premium Food Packaging:** - Pharmaceutical-grade nutrition packaging - Infant formula packaging - Medical food packaging - Ultra-high-value food products - Export-grade premium food packaging **Advanced Technical Applications:** - Medical device components - Aerospace critical applications - Defense packaging specifications - Premium lithium-ion battery foil - High-reliability capacitor foil **Specialized Applications:** - Nuclear medicine packaging - Biotech product packaging - Semiconductor component packaging - Military specification packaging - Space program applications --- #### **7. Key Characteristics** **Ultra-Premium Manufacturing Advantages:** - **Exceptional Rolling Performance** with ultra-precise gauge control - **Premium Surface Quality** for high-definition printing - **Near-zero Pinhole Formation** - **Ultra-consistent Annealing Response** - **Superior Slitting and Rewinding** precision **Critical End-Use Properties:** - **Maximum Barrier Performance** - **Ultra-consistent Forming Characteristics** - **Premium Heat Seal Integrity** - **Exceptional Lacquer Adhesion** - **Ultra-consistent Mechanical Properties** --- #### **8. Processing Characteristics** **Ultra-Premium Foil Production:** - Exceptional high-speed rolling consistency - Premium tension control systems - Ultra-precise annealing uniformity - Advanced surface treatment technology - State-of-the-art quality monitoring **Premium Converting Operations:** - Superior printability for high-definition graphics - Exceptional coating adhesion for multi-layer structures - Premium laminating performance - Ultra-precise punching and cutting - Consistent high-performance heat sealing **Quality Excellence:** - Advanced pinhole detection technology - Superior optical density consistency - Exceptional surface cleanliness standards - Reliable barrier performance assurance - Mechanical property stability guarantee --- #### **9. Enhanced Barrier Properties** **Ultra-Premium Performance:** - **Exceptional Moisture Barrier**: WVTR < 0.05 g/m²/day - **Premium Oxygen Barrier**: OTR < 0.3 cm³/m²/day - **Superior Aroma Barrier** performance - **Excellent UV Protection** capability - **Enhanced Chemical Resistance** **Quality Validation:** - Advanced barrier performance testing - Comprehensive quality verification - Batch-to-batch excellence assurance - Customer-specific performance validation - Continuous quality monitoring --- #### **10. Quality Assurance & Certification** **Ultra-Premium Testing Protocol:** - State-of-the-art pinhole detection - Precision thickness measurement systems - Advanced surface quality inspection - Comprehensive mechanical testing - Barrier performance validation - Chemical composition verification **Premium Plus Certification:** - Ultra-premium mill test certificates - Comprehensive traceability documentation - Regular third-party quality audits - Customer-specific quality agreements - Continuous quality excellence programs --- #### **11. Comparison with 8021A Alloy** | Property | 8021B-H19 | 8021A-H19 | Improvement | |----------|------------|------------|-------------| | Tensile Strength Range (MPa) | 200-220 | 195-215 | Enhanced consistency | | Pinhole Count (per m²) | <3 | <5 | 40% improvement | | Surface Quality | Ultra-Premium | Premium | Significant enhancement | | Gauge Consistency | ±1.5% | ±2% | Improved precision | | Barrier Performance | Exceptional | Superior | Enhanced protection | --- #### **Conclusion** Aluminum 8021B alloy represents the pinnacle of aluminum foil technology, offering the highest level of quality, consistency, and performance available in the 8021 series. Its ultra-tight compositional controls and state-of-the-art manufacturing processes ensure exceptional reliability for the most critical packaging applications, particularly in pharmaceutical, medical device, and premium technical applications where failure is not an option. The investment in 8021B alloy is essential for applications where maximum product protection, regulatory compliance, and ultimate performance are non-negotiable requirements. The alloy's superior barrier properties, exceptional mechanical consistency, and advanced manufacturing characteristics provide manufacturers with an unparalleled material solution for markets where quality, reliability, and performance are critical success factors. The adoption of 8021B alloy demonstrates the highest commitment to excellence and continuous improvement in aluminum packaging materials technology.

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 2241 gallon liquid totes Special package is available on request.