5252-H38 Aluminum alloy,Aluminum 5252-H38 alloy,E FORU

### **5252-H38 Aluminum Alloy Technical Datasheet** **Material Overview** 5252-H38 is a high-strength, strain-hardened temper of the 5252 aluminum-magnesium alloy, designed specifically for applications requiring maximum strength combined with excellent surface quality. As a full-hard temper, H38 offers the highest mechanical properties achievable in the 5252 alloy system while maintaining superior anodizing characteristics, making it ideal for demanding automotive, architectural, and premium decorative applications. --- ### **1. Chemical Composition (Weight %)** | Element | Composition Range | |---------|-------------------| | Aluminum (Al) | Balance | | Magnesium (Mg) | 2.2 - 2.8 | | Chromium (Cr) | 0.15 - 0.35 | | Iron (Fe) | ≤ 0.10 | | Silicon (Si) | ≤ 0.08 | | Copper (Cu) | ≤ 0.10 | | Manganese (Mn) | ≤ 0.10 | | Zinc (Zn) | ≤ 0.10 | | Titanium (Ti) | ≤ 0.10 | | Other Elements (Each) | ≤ 0.05 | | Other Elements (Total) | ≤ 0.15 | --- ### **2. Physical Properties** | Property | Value | |----------|-------| | Density | 2.68 g/cm³ | | Melting Range | 607 - 649 °C | | Electrical Conductivity | 32-37% IACS | | Thermal Conductivity | 130 - 140 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 | 285 - 325 MPa | 270 MPa | | Yield Strength (0.2% Offset) | 250 - 290 MPa | 240 MPa | | Elongation (50mm) | 4 - 7% | 3% | | Hardness (Brinell) | 90 - 100 HB | - | | Shear Strength | 190 - 220 MPa | - | | Fatigue Strength | 130 - 150 MPa | - | --- ### **4. Technical Applications** **Primary Application Sectors:** - **Automotive Excellence** - High-strength exterior trim - Wheel cover components - Grille assemblies - Body side moldings - Bumper trim - **Architectural Applications** - Structural decorative elements - High-strength architectural trim - Building facade components - Premium door and window systems - **Consumer Durables** - High-end appliance trim - Premium electronic housings - Luxury goods components - Quality hardware fixtures - **Specialty Applications** - Nameplates and emblems - Award and trophy components - Exhibition structures - Premium signage systems --- ### **5. International Standards Compliance** | Standard Organization | Designation | |----------------------|-------------| | Aluminum Association | AA 5252-H38 | | ASTM International | ASTM B209-5252 H38 | | European Standards | EN AW-5252 H38 | | Japanese Standards | JIS A5252 H38 | | International Standards | ISO 6361-2 | --- ### **6. Material Characteristics** **Key Advantages:** - Maximum strength in 5252 alloy system - Excellent surface finish quality - Superior anodizing characteristics - Good corrosion resistance - Excellent spring properties - High durability and wear resistance **Special Features:** - **Surface Quality** - Exceptional brightness after polishing - Excellent response to bright anodizing - Uniform color absorption in dyeing - Consistent surface appearance - **Mechanical Performance** - Highest strength available in 5252 alloy - Excellent fatigue resistance - Good springback characteristics - Superior dent resistance --- ### **7. Processing Characteristics** **Manufacturing Considerations:** - **Forming Operations** - Limited formability due to full-hard condition - Suitable for very light bending only - Requires careful handling to prevent cracking - Predictable but significant springback - **Anodizing Performance** - Excellent for decorative anodizing - Uniform oxide layer formation - Good color consistency - Suitable for hard anodizing processes - **Joining Technology** - Good weldability with proper procedures - Recommended filler: 5356 - Suitable for adhesive bonding - Excellent for mechanical fastening - **Machining** - Good machinability with sharp tools - Produces good surface finish - Requires adequate cooling - Suitable for precision machining --- ### **8. Quality Assurance** **Testing & Certification:** - Full mechanical property testing - Chemical composition verification - Surface quality inspection - Anodizing quality assessment - Corrosion resistance testing - Mill test certificates per EN 10204 3.1 --- ### **9. Special Considerations** **Design Guidelines:** - Ideal for applications requiring maximum strength and premium appearance - Suitable for high-visibility exterior applications - Excellent for components requiring spring properties - Preferred for luxury and premium products **Processing Recommendations:** - Handle carefully to prevent surface damage - Use sharp tools for machining operations - Implement controlled manufacturing processes - Ensure proper storage to prevent surface contamination --- **Technical Note:** 5252-H38 Aluminum Alloy represents the ultimate in strength and surface quality within the 5252 alloy system. The full-hard H38 temper provides maximum mechanical properties while maintaining the exceptional anodizing characteristics that make this alloy ideal for premium automotive trim, architectural applications, and high-end consumer products. Its combination of high strength, excellent surface quality, and good corrosion resistance makes it particularly suitable for demanding applications where both mechanical performance and aesthetic appeal are critical requirements.

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 1874 gallon liquid totes Special package is available on request.