5254-O Aluminum alloy,Aluminum 5254-O alloy,E FORU

### **5254-O Aluminum Alloy Technical Datasheet** **Material Overview** 5254-O is the annealed temper of the 5254 aluminum-magnesium alloy, offering maximum ductility and superior formability for severe forming operations. In the "O" (annealed) condition, this non-heat-treatable alloy achieves its softest state, making it ideal for complex fabrication processes and deep drawing applications. The alloy maintains excellent corrosion resistance characteristics, particularly in marine and chemical environments, while providing exceptional workability for demanding manufacturing requirements. --- ### **1. Chemical Composition (Weight %)** | Element | Composition Range | |---------|-------------------| | Aluminum (Al) | Balance | | Magnesium (Mg) | 3.1 - 3.9 | | Manganese (Mn) | ≤ 0.50 | | Chromium (Cr) | 0.15 - 0.35 | | Iron (Fe) | ≤ 0.40 | | Silicon (Si) | ≤ 0.25 | | Copper (Cu) | ≤ 0.05 | | Zinc (Zn) | ≤ 0.20 | | Titanium (Ti) | ≤ 0.05 | | Other Elements (Each) | ≤ 0.05 | | Other Elements (Total) | ≤ 0.15 | --- ### **2. Physical Properties** | Property | Value | |----------|-------| | Density | 2.66 g/cm³ | | Melting Range | 590 - 645 °C | | Electrical Conductivity | 34-38% IACS | | Thermal Conductivity | 135 - 145 W/m·K | | Coefficient of Thermal Expansion (20-100°C) | 24.0 × 10⁻⁶/°C | | Modulus of Elasticity | 70 GPa | | Specific Heat Capacity | 900 J/kg·K | --- ### **3. Mechanical Properties** | Property | Typical Value | |----------|---------------| | Tensile Strength | 220 - 270 MPa | | Yield Strength (0.2% Offset) | 100 - 140 MPa | | Elongation (50mm) | 20 - 26% | | Hardness (Brinell) | 60 - 70 HB | | Shear Strength | 140 - 170 MPa | | Fatigue Strength | 105 - 125 MPa | --- ### **4. Technical Applications** **Primary Application Sectors:** - **Deep Drawing & Forming** - Complex deep-drawn components - Severe forming applications - Intricate stamped parts - Multi-stage formed components - **Marine Applications** - Complex marine fittings - Boat hull formations - Marine hardware fabrication - Custom marine components - **Pressure Vessels** - Tank heads and dished ends - Complex vessel components - Cryogenic tank parts - Chemical vessel formations - **Chemical Processing** - Chemical tank components - Processing equipment parts - Heat exchanger formations - Custom chemical apparatus --- ### **5. International Standards Compliance** | Standard Organization | Designation | |----------------------|-------------| | Aluminum Association | AA 5254-O | | ASTM International | ASTM B209-5254 O | | European Standards | EN AW-5254A O | | Japanese Standards | JIS A5254 O | | International Standards | ISO 6361-2 | --- ### **6. Material Characteristics** **Key Advantages:** - Maximum ductility and formability - Excellent deep drawing capability - Superior corrosion resistance - Good weldability characteristics - Consistent mechanical properties - Ideal for complex forming operations **Special Features:** - **Corrosion Performance** - Excellent seawater corrosion resistance - Good chemical resistance - Suitable for marine environments - Resistant to stress corrosion cracking - **Forming Characteristics** - Exceptional deep drawing performance - Minimal springback - Suitable for severe bending operations - Excellent stretch forming capability --- ### **7. Processing Characteristics** **Manufacturing Considerations:** - **Forming Operations** - Excellent deep drawing capability - Minimal springback characteristics - Suitable for severe bending operations - Superior stretch forming performance - **Welding Technology** - Excellent weldability using all standard methods - Recommended filler: 5356, 5183 - Good weld metal properties - Minimal heat-affected zone sensitivity - **Heat Treatment** - Supplied in fully annealed condition - Can be strain-hardened after forming - Suitable for all cold working operations - Stable properties at room temperature --- ### **8. Quality Assurance** **Testing & Certification:** - Mechanical property verification - Chemical composition analysis - Formability testing - Surface quality inspection - Corrosion resistance evaluation - Mill test certificates per EN 10204 3.1 --- ### **9. Special Considerations** **Manufacturing Advantages:** - Ideal for prototyping and complex designs - Suitable for most severe forming operations - Excellent for parts requiring multiple forming stages - Consistent performance in high-volume production **Application Guidelines:** - Perfect for components requiring maximum formability - Suitable for subsequent strain hardening - Excellent base material for further processing - Recommended for welding complex assemblies --- **Technical Note:** 5254-O Aluminum Alloy provides the ultimate in formability and workability within the 5254 alloy system, making it the preferred choice for applications requiring severe forming operations and complex fabrication processes. The fully annealed condition ensures maximum ductility while maintaining the excellent corrosion resistance that characterizes the 5254 alloy. This material serves as an ideal starting point for manufacturing processes that may involve subsequent strain hardening to achieve desired mechanical properties, offering manufacturers exceptional flexibility in production while ensuring reliable performance in corrosive service environments, particularly in marine and chemical processing applications.

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 1881 gallon liquid totes Special package is available on request.