5050-H38 Aluminum alloy,Aluminum 5050-H38 alloy,E FORU

### **Technical Datasheet: 5050-H38 Aluminum Alloy** --- #### **1. Material Overview** **5050-H38 Aluminum Alloy** represents the highest practical strain-hardened temper in the 5050 alloy series, offering maximum strength achievable through cold working operations. This temper condition provides the ultimate mechanical properties while maintaining the fundamental characteristics of the Al-Mg alloy system, making it suitable for applications demanding high strength-to-weight ratio and structural integrity. --- #### **2. Chemical Composition (Weight %)** | Element | Content (%) | Control Purpose | |---------|-------------|-----------------| | Al | Balance | Base metal | | Mg | 1.1-1.8 | Solid solution strengthening | | Fe | ≤0.40 | Impurity control | | Si | ≤0.30 | Impurity control | | Mn | ≤0.10 | Grain refinement | | Cu | ≤0.05 | Corrosion resistance | | Cr | ≤0.05 | Grain structure control | | Zn | ≤0.10 | Impurity control | | Others | ≤0.15 | Total impurities | --- #### **3. Physical Properties** | Property | Value | Test Standard | |----------|-------|---------------| | Density | 2.70 g/cm³ | ASTM B193 | | Melting Range | 645-655 °C | - | | Electrical Conductivity | 35-40% IACS | ASTM B193 | | Thermal Conductivity | 130-140 W/m·K | ASTM E1461 | | Coefficient of Thermal Expansion | 23.5 × 10⁻⁶/K (20-100°C) | ASTM E228 | | Modulus of Elasticity | 70 GPa | ASTM E111 | | Poisson's Ratio | 0.33 | ASTM E132 | --- #### **4. Mechanical Properties (Typical)** | Property | Value | Test Standard | |----------|-------|---------------| | Tensile Strength | 240-280 MPa | ASTM B557 | | Yield Strength (0.2% Offset) | 220-260 MPa | ASTM B557 | | Elongation (50mm) | 4-7% | ASTM B557 | | Hardness (Brinell) | 65-75 HB | ASTM E10 | | Fatigue Strength (10⁷ cycles) | 120-140 MPa | ASTM E466 | | Shear Strength | 150-180 MPa | ASTM B831 | | Bearing Strength | 360-420 MPa | ASTM E238 | --- #### **5. Key Characteristics** - **Maximum Cold-Worked Strength**: Highest strength attainable through strain hardening - **Good Structural Stability**: Maintains properties under load - **Limited Formability**: Suitable for simple bending operations only - **Excellent Stiffness**: High modulus-to-weight ratio - **Maintained Corrosion Resistance**: Despite high strength level - **Good Surface Integrity**: Suitable for decorative applications --- #### **6. Processing Characteristics** **Forming Operations:** - Simple bending only - Minimum bend radius: 4-5× thickness - Not recommended for deep drawing - Suitable for straight roll forming **Joining Methods:** - GTAW (TIG) - Requires special procedure - GMAW (MIG) - With proper technique - Resistance welding - Good - Adhesive bonding - Excellent - Mechanical fastening - Preferred method - Riveting - Excellent **Surface Treatments:** - Anodizing - Good (with proper pretreatment) - Painting - Good adhesion with surface preparation - Powder coating - Excellent - Chemical conversion - Good --- #### **7. Product Applications** **Primary Applications:** - High-strength architectural components - Automotive structural reinforcements - Appliance structural frames - Electrical bus components - Mechanical components **Specific Uses:** - Building structural supports - Vehicle reinforcement members - Appliance chassis and frames - Electrical conductor parts - Machinery components --- #### **8. Available Forms & Sizes** - Sheet: 1.0mm to 4.0mm thickness - Strip: 0.8mm to 2.5mm thickness - Coil: Up to 1200mm width - Plate: 6mm to 12mm thickness (special order) --- #### **9. International Standards** | Standard Organization | Designation | Specification | |----------------------|-------------|---------------| | Aluminum Association | AA 5050-H38 | AA-50 | | ASTM International | ASTM B209-5050H38 | ASTM B209 | | EN Standard | EN AW-5050-H38 | EN 573-3 | | ISO Standard | AlMg1.5-H38 | ISO 209 | | JIS Standard | A5050-H38 | JIS H4000 | | GB Standard (China) | 5050-H38 | GB/T 3880 | --- #### **10. Quality Assurance** - Certified mechanical properties - Full traceability from raw material to finished product - Independent third-party certification available - Comprehensive mill test certificates - Statistical process control implementation - Compliance with ISO 9001 quality systems --- #### **11. Design Guidelines** - Account for significant springback in forming - Consider reduced elongation in design calculations - Excellent for stiffness-critical applications - Suitable for weight reduction in structural applications - Consider specialized joining techniques --- #### **12. Comparative Properties Table** | Property | H34 | H36 | H38 | |----------|-----|-----|-----| | Tensile Strength (MPa) | 190-230 | 215-255 | 240-280 | | Yield Strength (MPa) | 165-205 | 190-230 | 220-260 | | Elongation (%) | 8-12 | 5-9 | 4-7 | | Hardness (HB) | 45-55 | 55-65 | 65-75 | | Typical Use | General structural | High-strength parts | Maximum strength parts | --- #### **13. Handling & Storage** - Protect edges from damage during handling - Store in dry conditions to prevent corrosion - Use proper lifting equipment for heavy coils - Avoid sharp contact with other metals - Maintain clean storage environment --- *Note: All values are typical and may vary based on manufacturing process and specific product form. Consultation with technical experts is recommended for critical applications. Material selection should be verified through prototype testing for specific use conditions.*

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 1804 gallon liquid totes Special package is available on request.