5252-H28 Aluminum alloy,Aluminum 5252-H28 alloy,E FORU

### **5252-H28 Aluminum Alloy Technical Datasheet** **Material Overview** 5252-H28 is a strain-hardened temper variant of the 5252 aluminum-magnesium alloy, offering high strength and excellent surface quality for demanding automotive and decorative applications. The H28 temper indicates that the material has been heavily strain-hardened to achieve strength levels close to full-hard condition while maintaining adequate ductility for manufacturing processes. This alloy is particularly valued for its superior anodizing characteristics and bright surface finish. --- ### **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 | 33-38% IACS | | Thermal Conductivity | 135 - 145 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** | Property | Typical Value | Standard Minimum | |----------|---------------|------------------| | Tensile Strength | 270 - 310 MPa | 255 MPa | | Yield Strength (0.2% Offset) | 240 - 280 MPa | 230 MPa | | Elongation (50mm) | 5 - 9% | 4% | | Hardness (Brinell) | 85 - 95 HB | - | | Shear Strength | 170 - 200 MPa | - | | Fatigue Strength | 120 - 140 MPa | - | --- ### **4. Technical Applications** **Primary Application Sectors:** - **Automotive Excellence** - Premium exterior trim components - Wheel cover applications - Grille components - Body side moldings - **Architectural Applications** - High-end architectural trim - Decorative building elements - Premium door and window fittings - Luxury interior applications - **Consumer Products** - High-quality appliance trim - Premium electronic enclosures - Luxury goods components - Decorative hardware - **Specialty Applications** - Nameplates and emblems - Trophy and award components - Exhibition display systems - Premium signage --- ### **5. International Standards Compliance** | Standard Organization | Designation | |----------------------|-------------| | Aluminum Association | AA 5252-H28 | | ASTM International | ASTM B209-5252 H28 | | European Standards | EN AW-5252 H28 | | Japanese Standards | JIS A5252 H28 | | International Standards | ISO 6361-2 | --- ### **6. Material Characteristics** **Key Advantages:** - High strength for decorative applications - Excellent surface finish quality - Superior anodizing characteristics - Good corrosion resistance - Excellent spring properties - Bright, reflective surface capability **Special Features:** - **Surface Quality** - Exceptional brightness after polishing - Excellent anodizing response - Uniform color absorption - Consistent surface appearance - **Mechanical Performance** - High yield strength - Good fatigue resistance - Excellent durability - Suitable for spring applications --- ### **7. Processing Characteristics** **Manufacturing Considerations:** - **Forming Operations** - Limited formability due to high strength - Suitable for light bending operations - Requires careful handling - Predictable springback characteristics - **Anodizing Performance** - Excellent for bright anodizing - Uniform oxide layer formation - Good color consistency - Suitable for both clear and color anodizing - **Joining Technology** - Good weldability with proper techniques - Recommended filler: 5356 - Suitable for adhesive bonding - Good for mechanical fastening --- ### **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 --- ### **9. Special Considerations** **Design Guidelines:** - Ideal for applications requiring high strength and premium appearance - Suitable for visible components in demanding environments - Excellent for automotive exterior applications - Preferred for luxury consumer products **Processing Recommendations:** - Handle with care to prevent surface damage - Use proper tooling to maintain surface quality - Implement controlled forming processes - Ensure clean handling throughout production --- **Technical Note:** 5252-H28 Aluminum Alloy represents a high-strength solution for premium decorative applications where both mechanical performance and aesthetic quality are essential. The heavily strain-hardened H28 temper provides excellent strength and durability while maintaining the superior surface characteristics that make 5252 alloy ideal for automotive trim, architectural elements, and high-end consumer products. Its combination of high strength, excellent anodizing capability, and good corrosion resistance makes it particularly suitable for exterior applications requiring long-term durability and maintained appearance.

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 1873 gallon liquid totes Special package is available on request.