5454-H38 Aluminum alloy,Aluminum 5454-H38 alloy,E FORU

# 5454-H38 Aluminum Alloy Technical Datasheet ## Material Overview 5454-H38 is the full-hard temper variant of the 5454 aluminum-magnesium alloy, offering the highest strength characteristics achievable in this alloy system while maintaining good corrosion resistance. The H38 temper indicates that the material has been severely strain-hardened to achieve maximum strength levels, then stabilized to ensure property consistency. This temper provides superior mechanical performance for applications requiring the ultimate strength in marine, offshore, and structural applications. --- ## 1. Chemical Composition (Weight %) | Element | Composition Range | |---------|-------------------| | Aluminum (Al) | Balance | | Magnesium (Mg) | 2.4 - 3.0 | | 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 | 2.69 g/cm³ | | Melting Range | 600 - 645 °C | | Electrical Conductivity | 29-33% IACS | | Thermal Conductivity | 118 - 128 W/m·K | | Coefficient of Thermal Expansion (20-100°C) | 23.7 × 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 | 305 - 355 MPa | 285 MPa | | Yield Strength (0.2% Offset) | 240 - 280 MPa | 235 MPa | | Elongation (50mm) | 6 - 10% | 5% | | Hardness (Brinell) | 85 - 95 HB | - | | Shear Strength | 175 - 205 MPa | - | | Fatigue Strength | 130 - 150 MPa | - | --- ## 4. Technical Applications ### Primary Application Sectors: - **Marine & Offshore Engineering** - High-stress hull components - Structural reinforcement members - Offshore platform critical components - Submarine pressure hull elements - **Pressure Vessel Systems** - High-pressure container construction - Compressed gas storage vessels - Cryogenic tank structural parts - Chemical reactor components - **Heavy Transportation** - Truck frame reinforcements - Trailer structural components - Railway heavy-duty members - Marine transport structural elements - **Industrial Equipment** - Heavy machinery structural parts - High-stress support frames - Equipment reinforcement members - Industrial structural applications --- ## 5. International Standards Compliance | Standard Organization | Designation | |----------------------|-------------| | Aluminum Association | AA 5454-H38 | | ASTM International | ASTM B209-5454 H38 | | European Standards | EN AW-5454 H38 | | Japanese Standards | JIS A5454 H38 | | International Standards | ISO 6361-2 | --- ## 6. Material Characteristics ### Key Advantages: - Maximum strength in 5454 alloy system - Excellent marine corrosion resistance - Good stress corrosion cracking resistance - Superior mechanical properties - Maintains adequate corrosion performance - Suitable for high-stress applications ### Special Features: - **Corrosion Performance** - Outstanding seawater corrosion resistance - Excellent performance in marine environments - Good chemical resistance - Suitable for aggressive service conditions - **Mechanical Performance** - Highest strength available in 5454 alloy - Good fatigue resistance - Adequate toughness for structural applications - Stable properties under high stress --- ## 7. Processing Characteristics ### Manufacturing Considerations: - **Forming Operations** - Very limited formability - Suitable for very light bending only - Requires specialized tooling and techniques - Significant springback characteristics - **Welding Technology** - Requires careful welding procedures - Recommended filler alloys: 5356, 5183 - Pre-heating essential for thick sections - Post-weld heat treatment recommended - **Machining** - Good machinability with sharp, proper tools - Requires adequate cooling and lubrication - Produces good surface finish - Suitable for precision machining --- ## 8. Quality Assurance ### Testing & Certification: - Comprehensive mechanical testing - Chemical composition analysis - Corrosion resistance evaluation - Non-destructive testing - Dimensional verification - Mill test certificates per EN 10204 3.1 --- ## Technical Note 5454-H38 Aluminum Alloy represents the ultimate in strength performance within the 5454 alloy system, providing maximum mechanical properties while maintaining the excellent corrosion resistance characteristics that make this alloy valuable for marine and industrial applications. The full-hard H38 temper offers the highest strength achievable through strain hardening, making it particularly suitable for applications where structural requirements demand the utmost mechanical performance while still requiring good corrosion resistance in aggressive environments. This combination of properties makes 5454-H38 an ideal choice for critical structural components in marine engineering, offshore structures, and high-pressure equipment where both strength durability and corrosion resistance are paramount.

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 1904 gallon liquid totes Special package is available on request.