5456-H25 Aluminum alloy,Aluminum 5456-H25 alloy,E FORU

# 5456-H25 Aluminum Alloy Technical Datasheet ## Material Overview 5456-H25 is a strain-hardened and stabilized temper variant of the 5456 aluminum-magnesium alloy, offering a balanced combination of strength, formability, and corrosion resistance. The H25 temper indicates that the material has been strain-hardened to a quarter-hard level and then stabilized to achieve consistent mechanical properties. This temper provides optimal characteristics for applications requiring good strength while maintaining adequate formability for manufacturing processes. --- ## 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 | 30-34% IACS | | Thermal Conductivity | 121 - 131 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 | Standard Minimum | |----------|---------------|------------------| | Tensile Strength | 295 - 345 MPa | 275 MPa | | Yield Strength (0.2% Offset) | 215 - 255 MPa | 210 MPa | | Elongation (50mm) | 12 - 16% | 10% | | Hardness (Brinell) | 80 - 90 HB | - | | Shear Strength | 175 - 205 MPa | - | | Fatigue Strength | 125 - 145 MPa | - | --- ## 4. Technical Applications ### Primary Application Sectors: - **Marine Structures** - Boat hull components - Deck structures and reinforcements - Marine fittings and hardware - Superstructure components - **Pressure Vessels** - Storage tank components - Pressure container parts - Cryogenic vessel sections - Industrial tank fabrications - **Transportation Equipment** - Truck body panels and frames - Trailer structural components - Railway carriage parts - Heavy vehicle components - **Structural Engineering** - Bridge components - Building structures - Industrial frameworks - Heavy equipment parts --- ## 5. International Standards Compliance | Standard Organization | Designation | |----------------------|-------------| | Aluminum Association | AA 5456-H25 | | ASTM International | ASTM B209-5456 H25 | | European Standards | EN AW-5456 H25 | | Japanese Standards | JIS A5456 H25 | | International Standards | ISO 6361-2 | --- ## 6. Material Characteristics ### Key Advantages: - Good strength-to-weight ratio - Excellent corrosion resistance in marine environments - Enhanced formability compared to harder tempers - Good weldability using conventional methods - Superior stress corrosion cracking resistance - Stable mechanical properties ### Special Features: - **Forming Characteristics** - Improved formability over H32 temper - Good bending and shaping capability - Predictable springback behavior - Suitable for moderate forming operations - **Corrosion Performance** - Excellent seawater corrosion resistance - Good performance in marine atmospheres - Suitable for chemical environments - Resistant to stress corrosion cracking --- ## 7. Processing Characteristics ### Manufacturing Considerations: - **Forming Operations** - Good cold working capability - Suitable for bending and moderate forming - Predictable springback characteristics - Adequate for most structural applications - **Welding Technology** - Excellent weldability using standard methods - Recommended filler alloys: 5356, 5183 - Good weld metal properties - Minimal heat-affected zone sensitivity - **Machining** - Good machinability with proper tools - Requires adequate cooling - Produces acceptable surface finish - Suitable for most machining operations --- ## 8. Quality Assurance ### Testing & Certification: - Mechanical property testing - Chemical composition analysis - Corrosion resistance evaluation - Non-destructive testing capability - Formability assessment - Mill test certificates per EN 10204 3.1 --- ## Technical Note 5456-H25 Aluminum Alloy provides an optimal balance between mechanical properties and manufacturing versatility, making it particularly suitable for applications requiring both structural performance and good formability. The H25 temper offers improved forming characteristics while maintaining adequate strength for marine and industrial applications. This combination of properties makes it an excellent choice for fabricators and engineers designing components that require complex forming operations while needing to maintain structural integrity and corrosion resistance in demanding service environments. The material's consistent performance and reliable characteristics ensure long-term durability in corrosive marine and industrial 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 1912 gallon liquid totes Special package is available on request.