5052-H38 Aluminum alloy,Aluminum 5052-H38 alloy,E FORU

### **Technical Datasheet: 5052-H38 Aluminum Alloy** --- #### **1. Material Overview** **5052-H38 Aluminum Alloy** is a high-strength strain-hardened aluminum-magnesium alloy representing one of the hardest tempers available in the 5052 series. The H38 designation indicates the material has been cold worked to achieve near-maximum strength through strain hardening, offering exceptional mechanical properties while maintaining the excellent corrosion resistance characteristic of the 5xxx series alloys. This temper is particularly suitable for applications demanding high strength and stiffness. --- #### **2. Chemical Composition (Weight %)** | Element | Content (%) | Role in the Alloy | |---------|-------------|-------------------| | Al | Balance | Base metal | | Mg | 2.2-2.8 | Primary strengthening element, solid solution strengthening | | Cr | 0.15-0.35 | Enhances stress corrosion cracking resistance | | Si | ≤0.25 | Impurity control | | Fe | ≤0.40 | Impurity control | | Cu | ≤0.10 | Maintains corrosion resistance | | Mn | ≤0.10 | Impurity control | | Zn | ≤0.10 | Impurity control | | Others (each) | ≤0.05 | - | | Others (total) | ≤0.15 | - | --- #### **3. Physical Properties** | Property | Value | Test Standard | |----------|-------|---------------| | Density | 2.68 g/cm³ | ASTM B193 | | Melting Range | 607-650 °C | - | | Electrical Conductivity | 28-33% IACS | ASTM B193 | | Thermal Conductivity | 120-130 W/m·K | ASTM E1461 | | Coefficient of Thermal Expansion | 23.8 × 10⁻⁶/K (20-100°C) | ASTM E228 | | Modulus of Elasticity | 70.3 GPa | ASTM E111 | | Specific Heat Capacity | 900 J/kg·K | - | --- #### **4. Mechanical Properties (Typical)** | Property | Value Range | Test Standard | |----------|-------------|---------------| | Tensile Strength | 290-330 MPa | ASTM B557 | | Yield Strength (0.2% Offset) | 250-280 MPa | ASTM B557 | | Elongation (50mm) | 5-8% | ASTM B557 | | Hardness (Brinell) | 80-90 HB | ASTM E10 | | Shear Strength | 185-205 MPa | ASTM B831 | | Fatigue Strength (10⁷ cycles) | 125-145 MPa | ASTM E466 | | **Bend Radius (90°)** | **4-5×t** | **ASTM B311** | --- #### **5. Key Characteristics** - **High Strength Properties**: Near-maximum strength achievable through strain hardening - **Excellent Stiffness**: Superior rigidity and structural stability - **Good Corrosion Resistance**: Maintains excellent marine corrosion resistance - **Limited Formability**: Suitable for simple bending operations only - **Good Fatigue Performance**: Reliable under cyclic loading conditions - **Excellent Surface Quality**: Maintains good surface characteristics --- #### **6. Processing Characteristics** **Forming Operations:** - Limited to simple bending operations - Minimum bend radius: 4-5× thickness - Not recommended for deep drawing - Significant springback requiring compensation - Suitable for straight roll forming **Joining Methods:** - GTAW (TIG) - Requires special procedure - GMAW (MIG) - With proper technique and filler selection - Resistance welding - Good - Adhesive bonding - Excellent - Mechanical fastening - Preferred method - Riveting - Excellent **Surface Treatments:** - Anodizing - Good with proper pretreatment - Painting - Requires thorough surface preparation - Powder coating - Excellent with pretreatment - Chemical conversion - Good for corrosion protection - Bright finishing - Good results achievable --- #### **7. Product Applications** **Marine & Offshore:** - High-strength marine structural components - Boat hull reinforcement members - Offshore platform structural parts - Marine hardware and fittings **Transportation Industry:** - Truck and trailer structural components - Railway carriage structural members - Vehicle frame reinforcements - Aircraft structural parts **Architectural Applications:** - Structural building components - High-strength architectural panels - Support brackets and frames - Reinforcement elements **Industrial Equipment:** - High-strength machinery components - Pressure vessel parts - Heavy-duty electrical enclosures - Industrial platform components --- #### **8. Available Forms & Sizes** - Sheet: 1.0mm to 6.0mm thickness - Strip: 0.8mm to 3.0mm thickness - Plate: 6mm to 25mm thickness - Coil: Up to 1200mm width --- #### **9. International Standards** | Standard Organization | Designation | Specification | |----------------------|-------------|---------------| | Aluminum Association | AA 5052-H38 | AA-50 | | ASTM International | ASTM B209-5052H38 | ASTM B209 | | EN Standard | EN AW-5052-H38 | EN 573-3 | | ISO Standard | AlMg2.5-H38 | ISO 209 | | JIS Standard | A5052-H38 | JIS H4000 | | GB Standard | 5052-H38 | GB/T 3880 | --- #### **10. Corrosion Performance** - **Marine Corrosion**: Excellent resistance to saltwater environments - **Atmospheric Exposure**: Superior performance in harsh conditions - **Stress Corrosion**: Good resistance due to optimized composition - **Galvanic Corrosion**: Requires proper design when contacting other metals - **Pitting Resistance**: Excellent in corrosive environments --- #### **11. Quality Assurance** - Certified to meet H38 temper requirements - Full traceability from raw material to finished product - Mechanical properties certification - Chemical composition verification - Surface quality inspection - Third-party certification available --- #### **12. Design Considerations** - **Springback Compensation**: Essential in design calculations - **Forming Limitations**: Restricted to simple bending operations - **Joining Methods**: Mechanical fastening preferred over welding - **Temperature Limits**: Maximum service temperature 150°C - **Weight Advantage**: Significant weight savings versus steel --- #### **13. Comparative Properties** | Temper | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Typical Applications | |--------|------------------------|----------------------|----------------|---------------------| | H34 | 260-300 | 215-245 | 8-12 | General structural | | H36 | 270-310 | 230-260 | 7-10 | High-strength parts | | H38 | 290-330 | 250-280 | 5-8 | Maximum strength applications | --- *Note: 5052-H38 aluminum alloy provides the highest practical strength level in the 5052 series through strain hardening, making it ideal for applications requiring maximum strength and stiffness. While offering superior mechanical properties, designers must account for its limited formability and significant springback characteristics. Proper material selection should consider both the mechanical requirements and manufacturing constraints.*

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 1812 gallon liquid totes Special package is available on request.