8112 Aluminum alloy,Aluminum 8112 alloy，E FORU

### **Aluminum 8112 Alloy Technical Datasheet** --- #### **1. Product Overview** **Aluminum 8112** is a specialized wrought aluminum alloy from the 8000 series, specifically designed for applications requiring excellent deep drawing characteristics combined with good mechanical strength and surface quality. This non-heat-treatable alloy features a carefully balanced composition that makes it particularly suitable for demanding forming applications, container stock, and various industrial uses where superior formability and consistent performance are essential requirements. --- #### **2. Chemical Composition (Weight %)** | Element | Composition Range | Typical Value | |---------|-------------------|---------------| | Aluminum (Al) | Balance | ≥98.3% | | Iron (Fe) | 0.50 - 0.80% | 0.65% | | Silicon (Si) | 0.30 - 0.60% | 0.45% | | Copper (Cu) | ≤ 0.05% | 0.03% | | Manganese (Mn) | 0.10 - 0.25% | 0.18% | | Zinc (Zn) | ≤ 0.07% | 0.04% | | Magnesium (Mg) | ≤ 0.05% | 0.03% | | Titanium (Ti) | ≤ 0.05% | 0.03% | | Chromium (Cr) | 0.05 - 0.15% | 0.10% | | Other Elements (each) | ≤ 0.03% | - | | Total Other Elements | ≤ 0.10% | - | **Key Composition Features:** - Optimized Fe/Si ratio for superior deep drawing performance - Chromium addition for grain structure control - Enhanced purity for excellent surface quality - Controlled alloying elements for consistent mechanical properties - Specifically designed for severe forming operations --- #### **3. Physical Properties** | Property | Metric Value | Imperial Value | |----------|--------------|----------------| | Density | 2.71 g/cm³ | 0.0979 lb/in³ | | Melting Range | 644-654°C | 1191-1209°F | | Thermal Conductivity | 195-205 W/m·K | - | | Electrical Conductivity | 52-56% 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 | 31-34 nΩ·m | - | --- #### **4. Mechanical Properties** **Typical Properties in Various Tempers:** | Property | O Temper | H12 Temper | H14 Temper | H16 Temper | H18 Temper | |----------|----------|-------------|-------------|-------------|------------| | **Tensile Strength (MPa)** | 95-120 | 130-150 | 150-170 | 170-190 | 190-210 | | **Yield Strength (MPa)** | 35-55 | 110-130 | 130-150 | 150-170 | 170-190 | | **Elongation in 50 mm** | 30-40 | 14-18 | 10-14 | 7-10 | 5-8 | | **Hardness (Brinell)** | 28-38 | 40-50 | 48-58 | 56-66 | 64-74 | | **Shear Strength (MPa)** | 60-75 | 85-100 | 100-115 | 115-130 | 130-145 | | **Fatigue Strength (MPa)** | 50-60 | 70-80 | 85-95 | 95-105 | 105-115 | **Special Forming Characteristics:** - **Erichsen Cupping Value**: 9.5-11.0 mm (O temper) - **Limit Drawing Ratio**: 2.1-2.3 - **Minimum Bend Radius**: 0.5t (in O temper) - **Plastic Strain Ratio (r-value)**: 0.70-0.80 - **Strain Hardening Exponent (n-value)**: 0.24-0.29 --- #### **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** **Deep Drawing Applications:** - Deep drawn containers and cans - Complex shaped housings - Pharmaceutical packaging components - Food packaging containers - Cosmetic packaging parts **Container Manufacturing:** - Drawn and ironed containers - Food and beverage cans - Aerosol containers - General line containers - Specialty packaging containers **Electrical Components:** - Electrical connector shells - Capacitor cases - Battery housings - Electronic enclosures - Transformer components **General Manufacturing:** - Kitchen utensils - Lighting fixtures - Decorative items - Hardware components - General fabricated parts --- #### **7. Key Characteristics** **Advantages:** - **Excellent Deep Drawing Capability** - **Superior Formability** in annealed condition - **Good Mechanical Strength** - **Excellent Surface Quality** - **Adequate Corrosion Resistance** - **Consistent Performance** - **Cost-Effective Manufacturing** **Manufacturing Benefits:** - Suitable for severe forming operations - Reduced risk of cracking during forming - Consistent springback characteristics - Good surface finish after forming - Reliable performance in high-volume production --- #### **8. Processing Characteristics** **Forming Operations:** - **Outstanding Deep Drawing** performance - **Excellent Bendability** - tight radius bending capability - **Good Stretch Forming** characteristics - **Easy Roll Forming** - **Superior Spinning** capability **Machining:** - Good machinability rating: 55% - Produces relatively short chips - Recommended cutting speed: 110-230 m/min - Good surface finish achievable - Standard tooling requirements **Joining Methods:** - **Excellent Weldability** - all conventional methods suitable - **Good Brazing** characteristics - **Excellent Soldering** performance - **Adhesive Bonding** - good with proper preparation - **Mechanical Fastening** - reliable performance --- #### **9. Corrosion Resistance** **Performance Characteristics:** - **Atmospheric Corrosion**: Good resistance - **Pitting Resistance**: Adequate for most applications - **Stress Corrosion Cracking**: Not susceptible - **Industrial Environment**: Satisfactory performance - **Chemical Exposure**: Limited resistance **Protection Methods:** - Chemical conversion coatings - Painting and powder coating - Anodizing (produces good results) - Proper design for corrosion prevention --- #### **10. Heat Treatment & Tempers** **Available Tempers:** - **O (Annealed)**: Full soft condition for maximum formability - **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 - Deep drawing testing (Erichsen test) - Surface quality inspection - Formability testing **Certification:** - Mill test certificate to applicable standards - Material traceability documentation - Customer-specific quality requirements - Regular quality system audits --- #### **12. Comparison with Similar Alloys** | Property | 8112-O | 8011-O | 3003-O | |----------|---------|---------|---------| | Tensile Strength (MPa) | 95-120 | 95-120 | 95-125 | | Yield Strength (MPa) | 35-55 | 35-55 | 35-55 | | Elongation (%) | 30-40 | 25-35 | 25-35 | | Deep Drawability | Excellent | Excellent | Good | | Erichsen Value (mm) | 9.5-11.0 | 9.0-10.5 | 9.0-10.5 | --- #### **Conclusion** Aluminum 8112 alloy represents a high-quality material solution for applications requiring exceptional deep drawing characteristics combined with good mechanical strength. Its optimized chemical composition provides excellent performance in severe forming operations while maintaining adequate strength for various industrial applications. The alloy's consistent mechanical properties, good surface quality, and reliable processing characteristics make it particularly valuable for container manufacturing, automotive components, and deep drawn parts where both formability and strength are important considerations. The combination of excellent forming capabilities with consistent performance and cost-effectiveness has established 8112 alloy as a preferred choice for manufacturers seeking reliable material solutions for demanding forming applications across various industrial sectors.

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 2266 gallon liquid totes Special package is available on request.