8211 Aluminum alloy,Aluminum 8211 alloy，E FORU

### **Aluminum 8211 Alloy Technical Datasheet** --- #### **1. Product Overview** **Aluminum 8211** is a specialized wrought aluminum alloy from the 8000 series, specifically designed for applications requiring excellent deep drawing characteristics and good mechanical properties. This non-heat-treatable alloy features a carefully balanced composition that makes it particularly suitable for container stock, formed components, and various industrial applications where superior formability and consistent performance are essential requirements. --- #### **2. Chemical Composition (Weight %)** | Element | Composition Range | Typical Value | |---------|-------------------|---------------| | Aluminum (Al) | Balance | ≥98.0% | | Iron (Fe) | 0.7 - 1.1% | 0.9% | | Silicon (Si) | 0.5 - 0.9% | 0.7% | | Copper (Cu) | ≤ 0.10% | 0.06% | | Manganese (Mn) | 0.2 - 0.5% | 0.35% | | Zinc (Zn) | ≤ 0.10% | 0.06% | | Magnesium (Mg) | ≤ 0.10% | 0.06% | | Chromium (Cr) | 0.05 - 0.20% | 0.12% | | Titanium (Ti) | ≤ 0.08% | 0.04% | | Other Elements (each) | ≤ 0.05% | - | | Total Other Elements | ≤ 0.15% | - | **Key Composition Features:** - Enhanced iron and silicon content for improved strength - Chromium addition for grain structure control - Optimized manganese for solid solution strengthening - Balanced composition for consistent forming characteristics - Specifically designed for demanding forming applications --- #### **3. Physical Properties** | Property | Metric Value | Imperial Value | |----------|--------------|----------------| | Density | 2.73 g/cm³ | 0.0986 lb/in³ | | Melting Range | 640-650°C | 1184-1202°F | | Thermal Conductivity | 165-175 W/m·K | - | | Electrical Conductivity | 44-48% IACS | - | | Modulus of Elasticity | 70 GPa | 10.2 × 10⁶ psi | | Coefficient of Thermal Expansion | 23.4 × 10⁻⁶/°C | 13.0 × 10⁻⁶/°F | | Specific Heat Capacity | 890 J/kg·K | - | | Electrical Resistivity | 36-39 nΩ·m | - | --- #### **4. Mechanical Properties** **Typical Properties in Various Tempers:** | Property | O Temper | H12 Temper | H14 Temper | H16 Temper | H18 Temper | |----------|----------|-------------|-------------|-------------|------------| | **Tensile Strength (MPa)** | 110-135 | 150-170 | 170-190 | 190-210 | 210-230 | | **Yield Strength (MPa)** | 45-65 | 125-145 | 145-165 | 165-185 | 185-205 | | **Elongation in 50 mm** | 22-30 | 10-14 | 8-11 | 5-8 | 3-5 | | **Hardness (Brinell)** | 35-45 | 50-60 | 60-70 | 70-80 | 80-90 | | **Shear Strength (MPa)** | 70-85 | 100-115 | 115-130 | 130-145 | 145-160 | | **Fatigue Strength (MPa)** | 60-70 | 85-95 | 100-110 | 110-120 | 120-130 | **Forming Characteristics:** - **Erichsen Cupping Value**: 8.0-9.5 mm (O temper) - **Limit Drawing Ratio**: 1.8-2.0 - **Minimum Bend Radius**: 1.2t (in O temper) - **Plastic Strain Ratio (r-value)**: 0.60-0.70 - **Strain Hardening Exponent (n-value)**: 0.20-0.25 --- #### **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) **Product Standards:** - **EN 485-2**: Aluminum and aluminum alloys - Sheet, strip and plate - **ASTM B209**: Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate - **ASTM B479**: Standard Specification for Annealed Aluminum Foil for Flexible Barrier Applications **Regional Standards:** - **JIS H4000**: Aluminum and aluminum alloy sheets and plates (Japan) - **DIN 1725-1**: Wrought aluminum alloys (Germany) --- #### **6. Product Applications** **Container Manufacturing:** - Drawn and ironed containers - Food and beverage cans - Aerosol containers - General line containers - Industrial containers **Formed Components:** - Deep drawn housings - Complex shaped parts - Automotive components - Electrical enclosures - General fabricated parts **Industrial Applications:** - Machinery components - Equipment parts - Structural supports - Hardware components - General engineering applications **Special Applications:** - Light structural components - Bracket and mounting parts - Decorative elements - Consumer product components - Industrial hardware --- #### **7. Key Characteristics** **Advantages:** - **Good Deep Drawing Capability** - **Enhanced Mechanical Strength** - **Adequate Formability** in annealed condition - **Good Surface Quality** - **Cost-Effective Performance** - **Consistent Mechanical Properties** **Manufacturing Benefits:** - Suitable for moderate forming operations - Good strength for structural applications - Consistent performance in production - Reliable quality output - Versatile application range --- #### **8. Processing Characteristics** **Forming Operations:** - **Good Deep Drawing** capability - **Adequate Bendability** - minimum bend radius: 1.5t - **Good Roll Forming** characteristics - **Moderate Stamping** performance - **Suitable for Press Forming** **Machining:** - Good machinability rating: 60% - Produces relatively short chips - Recommended cutting speed: 100-210 m/min - Good surface finish achievable - Standard tooling requirements **Joining Methods:** - **Good Weldability** - conventional methods suitable - **Adequate Brazing** characteristics - **Good Soldering** performance - **Adhesive Bonding** - acceptable with preparation - **Mechanical Fastening** - good performance --- #### **9. Corrosion Resistance** **Performance Characteristics:** - **Atmospheric Corrosion**: Good resistance - **Pitting Resistance**: Moderate - **Stress Corrosion Cracking**: Not susceptible - **Industrial Environment**: Adequate performance - **Chemical Exposure**: Limited resistance **Protection Methods:** - Chemical conversion coatings - Painting and powder coating - Anodizing for enhanced protection - Proper design for corrosion prevention --- #### **10. Heat Treatment & Tempers** **Available Tempers:** - **O (Annealed)**: Full soft condition - **H12, H14, H16, H18**: Strain-hardened tempers - **H22, H24, H26**: Strain-hardened and partially annealed - **H32, H34, H36**: Strain-hardened and stabilized **Annealing Process:** - Full annealing: 345°C (650°F) for 2-3 hours - Intermediate annealing: 315°C (600°F) for 1-2 hours - Stress relief: 230-260°C (450-500°F) for 1-2 hours --- #### **11. Quality Assurance** **Testing Requirements:** - Chemical composition verification - Mechanical property testing - Surface quality inspection - Dimensional verification - Formability testing when specified **Certification:** - Mill test certificate to applicable standards - Material traceability documentation - Customer-specific quality requirements - Regular quality system audits --- #### **12. Comparison with Similar Alloys** | Property | 8211-H14 | 3003-H14 | 8014-H14 | |----------|-----------|-----------|-----------| | Tensile Strength (MPa) | 170-190 | 140-160 | 145-165 | | Yield Strength (MPa) | 145-165 | 125-145 | 125-145 | | Elongation (%) | 8-11 | 8-12 | 8-12 | | Formability | Good | Very Good | Good | | Typical Applications | Containers | General purpose | General purpose | --- #### **Conclusion** Aluminum 8211 alloy offers an enhanced strength profile compared to many other 8000 series alloys, making it particularly suitable for applications requiring higher mechanical properties while maintaining adequate formability. Its optimized chemical composition provides a good balance between strength, manufacturability, and cost-effectiveness, positioning it as a valuable material for container manufacturing, formed components, and general engineering applications. The alloy's consistent performance characteristics and reliable processing behavior ensure predictable results in manufacturing operations, while its enhanced strength capabilities provide designers with additional flexibility in product development. The continued use of 8211 alloy across various industrial sectors demonstrates its versatility and reliability as a material solution for applications where strength requirements exceed those of standard aluminum alloys but where the cost premium of high-strength heat-treatable alloys is not justified.

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 2271 gallon liquid totes Special package is available on request.