5056-H38 Aluminum alloy,Aluminum 5056-H38 alloy,E FORU

### **Technical Datasheet: 5056-H38 Aluminum Alloy** --- #### **1. Material Overview** **5056-H38 Aluminum Alloy** is a high-strength strain-hardened aluminum-magnesium alloy known for its excellent combination of strength, corrosion resistance, and good formability. The H38 temper indicates the material has been cold worked to a hard condition and stabilized, providing consistent mechanical properties suitable for demanding applications in marine, aerospace, and industrial sectors. --- #### **2. Chemical Composition (Weight %)** | Element | Content (%) | Role in the Alloy | |---------|-------------|-------------------| | Al | Balance | Base metal | | Mg | 4.5-5.6 | Primary strengthening element | | Mn | 0.05-0.20 | Grain refinement | | Cr | 0.05-0.20 | Corrosion resistance | | Cu | ≤0.10 | Impurity control | | Fe | ≤0.40 | Impurity control | | Si | ≤0.30 | Impurity control | | Zn | ≤0.10 | Impurity control | | Others (each) | ≤0.05 | - | | Others (total) | ≤0.15 | - | --- #### **3. Physical Properties** | Property | Value | Test Standard | |----------|-------|---------------| | Density | 2.64 g/cm³ | ASTM B193 | | Melting Range | 568-638 °C | - | | Electrical Conductivity | 25-30% IACS | ASTM B193 | | Thermal Conductivity | 105-115 W/m·K | ASTM E1461 | | Coefficient of Thermal Expansion | 24.1 × 10⁻⁶/K (20-100°C) | ASTM E228 | | Modulus of Elasticity | 71.0 GPa | ASTM E111 | | Specific Heat Capacity | 900 J/kg·K | - | --- #### **4. Mechanical Properties (Typical)** | Property | Value Range | Test Standard | |----------|-------------|---------------| | Tensile Strength | 350-400 MPa | ASTM B557 | | Yield Strength (0.2% Offset) | 290-340 MPa | ASTM B557 | | Elongation (50mm) | 8-12% | ASTM B557 | | Hardness (Brinell) | 85-100 HB | ASTM E10 | | Shear Strength | 200-220 MPa | ASTM B831 | | Fatigue Strength (10⁷ cycles) | 130-150 MPa | ASTM E466 | | **Bend Radius (90°)** | **3-4×t** | **ASTM B311** | --- #### **5. Key Characteristics** - **High Strength**: Excellent strength-to-weight ratio - **Superior Corrosion Resistance**: Outstanding performance in marine environments - **Good Formability**: Suitable for moderate forming operations - **Excellent Fatigue Resistance**: Reliable under cyclic loading conditions - **Good Stress Corrosion Resistance**: Performs well under sustained tension - **Weldability**: Can be welded with proper procedures --- #### **6. Processing Characteristics** **Forming Operations:** - Good for moderate bending - Minimum bend radius: 3-4× thickness - Suitable for roll forming - Moderate springback requiring compensation - Limited deep drawing capability **Joining Methods:** - GTAW (TIG) - Good with proper technique - GMAW (MIG) - Good results - Resistance welding - Very good - Adhesive bonding - Excellent - Mechanical fastening - Good - Riveting - Excellent **Surface Treatments:** - Anodizing - Very good - Chemical conversion - Excellent corrosion protection - Painting - Good adhesion - Powder coating - Excellent results - Electroplating - Suitable with preparation --- #### **7. Product Applications** **Marine & Offshore:** - Boat hull components - Marine hardware and fasteners - Deck fittings - Offshore structural components **Aerospace:** - Aircraft structural parts - Missile components - Spacecraft fittings - Aviation hardware **Transportation:** - Vehicle structural components - Truck body panels - Railway fittings - Bicycle frames **Industrial Applications:** - Pressure vessels - Chemical processing equipment - High-strength fasteners - Electrical conductors --- #### **8. Available Forms & Sizes** - Sheet: 0.8mm to 6.0mm thickness - Plate: 6mm to 25mm thickness - Wire: 1.0mm to 8.0mm diameter - Rod: 6mm to 50mm diameter - Strip: 0.5mm to 3.0mm thickness --- #### **9. International Standards** | Standard Organization | Designation | Specification | |----------------------|-------------|---------------| | Aluminum Association | AA 5056-H38 | AA-50 | | ASTM International | ASTM B209-5056H38 | ASTM B209 | | EN Standard | EN AW-5056-H38 | EN 573-3 | | ISO Standard | AlMg5-H38 | ISO 209 | | JIS Standard | A5056-H38 | JIS H4000 | | GB Standard | 5056-H38 | GB/T 3880 | --- #### **10. Corrosion Performance** - **Salt Water Resistance**: Excellent (>1000 hours salt spray) - **Marine Atmosphere**: Outstanding performance - **Stress Corrosion**: Very good resistance - **Galvanic Corrosion**: Requires proper isolation - **Pitting Resistance**: Excellent in chloride environments --- #### **11. Quality Assurance** - Certified mechanical properties - Chemical composition verification - Surface quality inspection - Dimensional accuracy control - Non-destructive testing available - Third-party certification --- #### **12. Design Considerations** - **Strength Utilization**: Good balance of strength and formability - **Forming Capability**: Moderate forming operations possible - **Welding Considerations**: Some strength reduction in HAZ - **Temperature Limits**: Maximum service temperature 65°C - **Weight Advantage**: Significant weight savings versus steel --- #### **13. Comparative Properties** | Property | 5056-H38 | 5052-H38 | 6061-T6 | |----------|----------|----------|----------| | Tensile Strength (MPa) | 350-400 | 290-330 | 310-330 | | Yield Strength (MPa) | 290-340 | 250-280 | 275-295 | | Elongation (%) | 8-12 | 5-8 | 12-17 | | Marine Corrosion | Excellent | Very Good | Good | --- *Note: 5056-H38 aluminum alloy offers an excellent balance of high strength and good formability, making it suitable for a wide range of demanding applications. Its superior corrosion resistance in marine environments combined with good mechanical properties makes it a preferred choice for naval, aerospace, and industrial applications where reliability and performance are critical.*

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 1816 gallon liquid totes Special package is available on request.