5083-O Aluminum alloy,Aluminum 5083-O alloy,E FORU

# Technical Datasheet: 5083-O Aluminum Alloy --- ## 1. Material Overview **5083-O Aluminum Alloy** is the annealed condition of the 5083 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 exceptional corrosion resistance characteristic of the 5xxx series alloys in marine and chemical environments. --- ## 2. Chemical Composition (Weight %) | Element | Content (%) | Role in the Alloy | |---------|-------------|-------------------| | Al | Balance | Base metal | | Mg | 4.0–4.9 | Solid solution strengthening | | Mn | 0.40–1.0 | Grain refinement and strength enhancement | | Cr | 0.05–0.25 | Stress corrosion resistance | | Cu | ≤0.10 | Impurity control | | Fe | ≤0.40 | Impurity control | | Si | ≤0.40 | Impurity control | | Zn | ≤0.25 | Impurity control | | Ti | ≤0.15 | Grain refinement | | Others (each) | ≤0.05 | - | | Others (total) | ≤0.15 | - | --- ## 3. Physical Properties | Property | Value | Test Standard | |----------|-------|---------------| | Density | 2.66 g/cm³ | ASTM B193 | | Melting Range | 590–640 °C | - | | Electrical Conductivity | 30–35% IACS | ASTM B193 | | Thermal Conductivity | 120–130 W/m·K | ASTM E1461 | | Coefficient of Thermal Expansion | 23.8 × 10⁻⁶/K (20–100°C) | ASTM E228 | | Modulus of Elasticity | 70.0 GPa | ASTM E111 | | Specific Heat Capacity | 900 J/kg·K | - | --- ## 4. Mechanical Properties (Typical) | Property | Value Range | Test Standard | |----------|-------------|---------------| | Tensile Strength | 275–325 MPa | ASTM B557 | | Yield Strength (0.2% Offset) | 115–165 MPa | ASTM B557 | | Elongation (50mm) | 16–22% | ASTM B557 | | Hardness (Brinell) | 75–90 HB | ASTM E10 | | Shear Strength | 170–190 MPa | ASTM B831 | | Fatigue Strength | 105–125 MPa | ASTM E466 | | **Bend Radius (90°)** | **1–2×t** | **ASTM B311** | --- ## 5. Key Characteristics - **Maximum Formability**: Ideal for deep drawing and severe forming operations - **Excellent Ductility**: Highest elongation in the 5083 alloy series - **Superior Workability**: Easy to cut, form, and machine - **Exceptional Corrosion Resistance**: Outstanding performance in marine environments - **High Electrical Conductivity**: Best conductivity among 5083 tempers - **Low Residual Stress**: Minimal springback after forming --- ## 6. Processing Characteristics **Forming Operations**: - Excellent for deep drawing and severe forming - Minimum bend radius: 1–2× thickness - Suitable for complex stamping operations - Ideal for spinning and stretch forming - Excellent for embossing and coining **Joining Methods**: - GTAW (TIG) and GMAW (MIG): Excellent with 5183 or 5356 filler - Resistance Welding: Very good - Adhesive Bonding: Excellent - Brazing and Soldering: Good - Mechanical Fastening: Excellent **Surface Treatments**: - Anodizing: Excellent results - Chemical Conversion Coatings: Superior corrosion protection - Painting and Powder Coating: Excellent adhesion and finish - Polishing and Buffing: Very good results achievable --- ## 7. Product Applications **Marine & Offshore**: - Boat hulls and decks - Marine fittings and hardware - Ship superstructures - Offshore platform components **Pressure Vessels & Tanks**: - LNG storage tanks - Chemical pressure vessels - Cryogenic containers - Gas storage systems **Transportation**: - Vehicle body panels - Truck and trailer components - Railway carriage parts - Aircraft fuel tanks **Architectural & Structural**: - Complex architectural forms - Building facades and panels - Structural components requiring forming - Decorative elements --- ## 8. Available Forms & Sizes - Sheet: 0.5 mm to 6.0 mm thickness - Plate: 6 mm to 150 mm thickness - Coil: Up to 2000 mm width - Circle Blanks: Various diameters - Custom Cut Shapes: To specification --- ## 9. International Standards | Standard Organization | Designation | Specification | |----------------------|-------------|---------------| | Aluminum Association | AA 5083-O | AA-50 | | ASTM International | ASTM B209-5083O | ASTM B209 | | EN Standard | EN AW-5083-O | EN 573-3 | | ISO Standard | AlMg4.5Mn0.7-O | ISO 209 | | JIS Standard | A5083-O | JIS H4000 | | GB Standard | 5083-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 - **Grain Size**: Controlled for optimal formability - **Stress Relief**: Complete stress elimination achieved --- ## 11. Quality Assurance - Certified to full O temper requirements - Microstructure examination for grain size control - Formability testing (Erichen, Olsen tests) - Surface quality verification - Dimensional compliance certification - Full traceability documentation --- ## 12. Special Advantages | Feature | 5083-O Advantage | |---------|------------------| | Formability | Best in series for severe forming | | Corrosion Resistance | Excellent in marine environments | | Workability | Easy to process and fabricate | | Weldability | Excellent joining characteristics | | 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 - Maintain organized storage to prevent damage --- *Note: 5083-O aluminum alloy is specifically designed for applications requiring maximum formability and is the preferred choice for deep drawing and severe forming operations. While offering lower mechanical strength compared to strain-hardened tempers, it provides superior workability and maintains the excellent corrosion resistance that makes 5083 alloy valuable for marine, chemical, and structural applications. For applications requiring higher strength, consider strain-hardened tempers (H32, H34, etc.).*

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 1826 gallon liquid totes Special package is available on request.