5050-O Aluminum alloy,Aluminum 5050-O alloy,E FORU

### **Technical Datasheet: 5050-O Aluminum Alloy** --- #### **1. Material Overview** **5050-O Aluminum Alloy** is the annealed condition of the 5050 aluminum-magnesium alloy, offering maximum formability and ductility. The "O" temper indicates the material has been fully annealed to achieve the softest state, providing optimal workability for severe forming operations while maintaining the excellent corrosion resistance characteristic of the 5xxx series alloys. --- #### **2. Chemical Composition (Weight %)** | Element | Content (%) | Control Purpose | |---------|-------------|-----------------| | Al | Balance | Base metal | | Mg | 1.1-1.8 | Solid solution strengthening | | Fe | ≤0.40 | Impurity control | | Si | ≤0.30 | Impurity control | | Mn | ≤0.10 | Grain refinement | | Cu | ≤0.05 | Corrosion resistance | | Cr | ≤0.05 | Grain structure control | | Zn | ≤0.10 | Impurity control | | Others | ≤0.15 | Total impurities | --- #### **3. Physical Properties** | Property | Value | Test Standard | |----------|-------|---------------| | Density | 2.70 g/cm³ | ASTM B193 | | Melting Range | 645-655 °C | - | | Electrical Conductivity | 45-50% IACS | ASTM B193 | | Thermal Conductivity | 150-160 W/m·K | ASTM E1461 | | Coefficient of Thermal Expansion | 23.5 × 10⁻⁶/K (20-100°C) | ASTM E228 | | Modulus of Elasticity | 70 GPa | ASTM E111 | | Specific Heat Capacity | 900 J/kg·K | ASTM E1269 | --- #### **4. Mechanical Properties (Typical)** | Property | Value | Test Standard | |----------|-------|---------------| | Tensile Strength | 125-165 MPa | ASTM B557 | | Yield Strength (0.2% Offset) | 45-85 MPa | ASTM B557 | | Elongation (50mm) | 20-28% | ASTM B557 | | Hardness (Brinell) | 30-40 HB | ASTM E10 | | Shear Strength | 85-115 MPa | ASTM B831 | | Fatigue Strength | 70-90 MPa | ASTM E466 | | **Forming Characteristics** | **Excellent** | - | | **Bend Radius (90°)** | **0-1×t** | **ASTM B311** | --- #### **5. Key Characteristics** - **Maximum Formability**: Ideal for deep drawing and severe forming operations - **Excellent Ductility**: Highest elongation in the 5050 alloy series - **Superior Workability**: Easy to cut, form, and shape - **Good Corrosion Resistance**: Maintains excellent corrosion resistance - **High Electrical Conductivity**: Best conductivity among 5050 tempers - **Low Residual Stress**: Minimal springback after forming --- #### **6. Processing Characteristics** **Forming Operations:** - Excellent for deep drawing and severe forming - Minimum bend radius: 0× thickness (flat) - Suitable for complex stamping operations - Ideal for spinning and stretch forming **Joining Methods:** - GTAW (TIG) - Excellent - GMAW (MIG) - Excellent - Resistance welding - Very good - Adhesive bonding - Excellent - Brazing - Excellent - Soldering - Good **Surface Treatments:** - Anodizing - Excellent - Painting - Excellent adhesion - Powder coating - Superior finish quality - Chemical conversion - Excellent - Polishing and buffing - Very good --- #### **7. Product Applications** **Primary Applications:** - Deep drawn components - Complex formed parts - Spun and stamped products - Appliance inner liners - Decorative architectural elements **Specific Uses:** - Kitchen utensil manufacturing - Lighting reflectors and fixtures - Appliance interior components - Decorative trim parts - Electronic enclosures - Food service equipment --- #### **8. Available Forms & Sizes** - Sheet: 0.3mm to 6.0mm thickness - Strip: 0.2mm to 3.0mm thickness - Coil: Up to 1600mm width - Plate: 6mm to 50mm thickness - Circle blanks: Various diameters --- #### **9. International Standards** | Standard Organization | Designation | Specification | |----------------------|-------------|---------------| | Aluminum Association | AA 5050-O | AA-50 | | ASTM International | ASTM B209-5050O | ASTM B209 | | EN Standard | EN AW-5050-O | EN 573-3 | | ISO Standard | AlMg1.5-O | ISO 209 | | JIS Standard | A5050-O | JIS H4000 | | GB Standard (China) | 5050-O | GB/T 3880 | --- #### **10. Heat Treatment Information** - **Annealing Temperature**: 345°C ± 15°C - **Soaking Time**: 2-3 hours - **Cooling Rate**: 30°C per hour maximum to 260°C, then air cool - **Stress Relief**: Not required for O temper --- #### **11. Quality Assurance** - Certified to full O temper requirements - Microstructure examination for grain size - Formability testing (Erichesen, Olsen tests) - Surface quality verification - Dimensional compliance certification - Full traceability documentation --- #### **12. Comparative Advantages** | Feature | 5050-O Advantage | |---------|------------------| | Formability | Best in series for severe forming | | Ductility | Maximum elongation characteristics | | Workability | Easy to process and fabricate | | Surface Quality | Excellent for finishing operations | | Consistency | Uniform properties throughout | --- #### **13. Storage & Handling Recommendations** - Protect from surface scratches and damage - Store in clean, dry environment - Use separators between sheets - Handle with clean gloves - Avoid exposure to corrosive environments --- *Note: This material is specifically designed for applications requiring maximum formability. For structural applications, consider higher tempers (H32, H34, etc.). Always verify material properties for specific application requirements through appropriate testing and validation.*

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 1805 gallon liquid totes Special package is available on request.