5252-H25; 5252-H38 Aluminum alloy,Aluminum 5252-H25; 5252-H38 alloy,E FORU

### **5252-H25 / 5252-H38 Aluminum Alloy Technical Datasheet** **Material Overview** 5252 is a magnesium-containing aluminum alloy from the 5xxx series, specifically designed for applications requiring good surface quality and excellent anodizing characteristics. The H25 and H38 tempers represent different levels of strain hardening, with H25 offering a quarter-hard condition and H38 providing full-hard properties, making them suitable for various automotive and decorative applications. --- ### **1. Chemical Composition (Weight %)** | Element | Composition Range | |---------|-------------------| | Aluminum (Al) | Balance | | Magnesium (Mg) | 2.2 - 2.8 | | Manganese (Mn) | ≤ 0.10 | | Silicon (Si) | ≤ 0.08 | | Iron (Fe) | ≤ 0.10 | | Chromium (Cr) | 0.15 - 0.35 | | Copper (Cu) | ≤ 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 | 35-40% IACS | | Thermal Conductivity | 138 - 148 W/m·K | | Coefficient of Thermal Expansion (20-100°C) | 23.8 × 10⁻⁶/°C | | Modulus of Elasticity | 70 GPa | | Specific Heat Capacity | 900 J/kg·K | --- ### **3. Mechanical Properties Comparison** | Property | 5252-H25 | 5252-H38 | |----------|-----------|-----------| | Tensile Strength (MPa) | 230 - 270 | 285 - 325 | | Yield Strength (MPa) | 180 - 220 | 250 - 290 | | Elongation (%) | 8 - 12 | 4 - 7 | | Hardness (Brinell) | 70 - 80 | 90 - 100 | | Shear Strength (MPa) | 150 - 180 | 190 - 220 | | Fatigue Strength (MPa) | 110 - 130 | 130 - 150 | --- ### **4. Technical Applications** **5252-H25 Applications:** - Automotive interior trim - Decorative moldings - Appliance trim components - Medium-strength decorative parts - Nameplates and insignia **5252-H38 Applications:** - Automotive exterior trim - High-strength decorative components - Wheel covers - Architectural trim - Premium consumer products --- ### **5. International Standards Compliance** | Standard Organization | Designation | |----------------------|-------------| | Aluminum Association | AA 5252-H25 / H38 | | ASTM International | ASTM B209-5252 | | European Standards | EN AW-5252 | | Japanese Standards | JIS A5252 | | ISO Standards | ISO 6361-2 | --- ### **6. Material Characteristics** **Common Advantages:** - Excellent surface finish quality - Superior anodizing characteristics - Good corrosion resistance - Excellent painting adhesion - Good formability in respective tempers - Bright, reflective surface capability **Temper-Specific Features:** **5252-H25:** - Balanced strength and formability - Suitable for moderate forming operations - Good deep drawing capability - Excellent for decorative stamping **5252-H38:** - High strength for decorative applications - Good spring characteristics - Excellent durability - Suitable for exterior applications --- ### **7. Processing Characteristics** **Forming Operations:** - **H25**: Good bendability and moderate forming capability - **H38**: Limited formability, suitable for light bending only **Anodizing Performance:** - Excellent response to decorative anodizing - Suitable for both clear and color anodizing - Uniform oxide layer formation - Consistent color matching **Welding Characteristics:** - Good weldability using TIG and MIG methods - Recommended filler: 5356 - Suitable for spot welding - Good weld appearance --- ### **8. Quality Assurance** **Testing & Certification:** - Mechanical property verification - Chemical composition analysis - Surface quality inspection - Anodizing quality tests - Corrosion resistance evaluation - Mill test certificates per EN 10204 3.1 --- **Technical Note:** 5252 aluminum alloy in H25 and H38 tempers provides excellent solutions for automotive trim and decorative applications where surface quality and anodizing performance are critical. The H25 temper offers a balance between strength and formability for complex shapes, while the H38 temper provides maximum strength for applications requiring durability and spring characteristics. Both tempers maintain the excellent corrosion resistance and surface quality that make 5252 ideal for visible, decorative components in demanding environments.

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 1872 gallon liquid totes Special package is available on request.