5456-O Aluminum alloy,Aluminum 5456-O alloy,E FORU

# 5456-O Aluminum Alloy Technical Datasheet ## Material Overview 5456-O is the annealed temper of the 5456 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) | 4.7 - 5.5 | | Manganese (Mn) | 0.50 - 1.0 | | Chromium (Cr) | 0.05 - 0.20 | | Iron (Fe) | ≤ 0.40 | | Silicon (Si) | ≤ 0.25 | | Copper (Cu) | ≤ 0.10 | | Zinc (Zn) | ≤ 0.25 | | Titanium (Ti) | ≤ 0.20 | | Other Elements (Each) | ≤ 0.05 | | Other Elements (Total) | ≤ 0.15 | --- ## 2. Physical Properties | Property | Value | |----------|-------| | Density | 2.66 g/cm³ | | Melting Range | 570 - 640 °C | | Electrical Conductivity | 32-36% IACS | | Thermal Conductivity | 130 - 140 W/m·K | | Coefficient of Thermal Expansion (20-100°C) | 24.1 × 10⁻⁶/°C | | Modulus of Elasticity | 70 GPa | | Specific Heat Capacity | 900 J/kg·K | --- ## 3. Mechanical Properties | Property | Typical Value | |----------|---------------| | Tensile Strength | 250 - 300 MPa | | Yield Strength (0.2% Offset) | 110 - 150 MPa | | Elongation (50mm) | 20 - 26% | | Hardness (Brinell) | 65 - 75 HB | | Shear Strength | 150 - 180 MPa | | Fatigue Strength | 110 - 130 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 - **Welding Wire Production** - Welding electrode core wire - Filler metal production - Welding rod manufacturing - Wire for various welding processes --- ## 5. International Standards Compliance | Standard Organization | Designation | |----------------------|-------------| | Aluminum Association | AA 5456-O | | ASTM International | ASTM B209-5456 O | | European Standards | EN AW-5456 O | | Japanese Standards | JIS A5456 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 --- ## Technical Note 5456-O Aluminum Alloy provides the ultimate in formability and workability within the 5456 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 5456 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. The alloy's ability to undergo significant deformation without cracking or failure makes it invaluable for producing complex-shaped components that require both excellent corrosion resistance and structural integrity.

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 1913 gallon liquid totes Special package is available on request.