5086-H38 Aluminum alloy,Aluminum 5086-H38 alloy,E FORU

# Technical Datasheet: 5086-H38 Aluminum Alloy --- ## 1. Material Overview **5086-H38 Aluminum Alloy** is a high-strength strain-hardened aluminum-magnesium alloy representing the full-hard temper condition in the 5086 series. The H38 temper indicates the material has been cold worked to achieve near-maximum strength through strain hardening, providing exceptional mechanical properties for demanding structural applications while maintaining good corrosion resistance in marine environments. --- ## 2. Chemical Composition (Weight %) | Element | Content (%) | Role in the Alloy | |---------|-------------|-------------------| | Al | Balance | Base metal | | Mg | 3.5–4.5 | Primary strengthening element | | Mn | 0.20–0.70 | Grain refinement and strength enhancement | | Cr | 0.05–0.25 | Stress corrosion resistance | | Cu | ≤0.10 | Impurity control | | Fe | ≤0.50 | Impurity control | | Si | ≤0.40 | Impurity control | | Zn | ≤0.25 | Impurity control | | Ti | ≤0.15 | Grain refinement | | Others (each) | ≤0.05 | - | | Others (total) | ≤0.15 | - | --- ## 3. Physical Properties | Property | Value | Test Standard | |----------|-------|---------------| | Density | 2.66 g/cm³ | ASTM B193 | | Melting Range | 585–640 °C | - | | Electrical Conductivity | 24–29% IACS | ASTM B193 | | Thermal Conductivity | 105–115 W/m·K | ASTM E1461 | | Coefficient of Thermal Expansion | 23.9 × 10⁻⁶/K (20–100°C) | ASTM E228 | | Modulus of Elasticity | 70.0 GPa | ASTM E111 | | Specific Heat Capacity | 900 J/kg·K | - | --- ## 4. Mechanical Properties (Typical) | Property | Value Range | Test Standard | |----------|-------------|---------------| | Tensile Strength | 340–390 MPa | ASTM B557 | | Yield Strength (0.2% Offset) | 285–325 MPa | ASTM B557 | | Elongation (50mm) | 5–8% | ASTM B557 | | Hardness (Brinell) | 105–120 HB | ASTM E10 | | Shear Strength | 195–215 MPa | ASTM B831 | | Fatigue Strength (10⁷ cycles) | 135–155 MPa | ASTM E466 | | **Bend Radius (90°)** | **5–6×t** | **ASTM B311** | --- ## 5. Key Characteristics - **Maximum Practical Strength**: Highest strength achievable through strain hardening in 5086 series - **Excellent Marine Corrosion Resistance**: Maintains good performance in seawater environments - **High Stiffness**: Superior structural rigidity and dimensional stability - **Limited Formability**: Restricted to minimal bending operations - **Good Fatigue Performance**: Suitable for high-cycle loading applications - **Stress Corrosion Resistance**: Adequate resistance to stress corrosion cracking --- ## 6. Processing Characteristics **Forming Operations**: - Very limited forming capability - Minimum bend radius: 5–6× thickness - Not suitable for deep drawing or complex forming - Extreme springback requiring significant compensation - Straight cutting and machining preferred **Joining Methods**: - GTAW (TIG): Requires special procedure - GMAW (MIG): With proper technique and filler selection - Resistance Welding: Acceptable - Adhesive Bonding: Excellent - Mechanical Fastening: Preferred method - Riveting: Excellent results **Surface Treatments**: - Anodizing: Good with specialized pretreatment - Chemical Conversion: Good corrosion protection - Painting: Requires thorough surface preparation - Powder Coating: Excellent with proper pretreatment - Plating: Suitable for specific applications --- ## 7. Product Applications **Marine & Naval Applications**: - High-strength marine structural components - Ship hull reinforcement members - Offshore platform structural parts - Submarine components **Aerospace & Defense**: - Aircraft structural components - Missile and rocket parts - Military vehicle armor components - Defense equipment structures **Transportation Industry**: - High-strength vehicle frames - Truck chassis components - Railway structural members - Heavy transport equipment **Industrial Applications**: - High-strength fasteners - Pressure vessel components - Machinery structural parts - Heavy-duty equipment frames --- ## 8. Available Forms & Sizes - Sheet: 1.2–6.0 mm thickness - Plate: 6–25 mm thickness - Strip: 1.0–3.0 mm thickness - Coil: Up to 1200 mm width --- ## 9. International Standards | Standard Organization | Designation | Specification | |----------------------|-------------|---------------| | Aluminum Association | AA 5086-H38 | AA-50 | | ASTM International | ASTM B209-5086H38 | ASTM B209 | | EN Standard | EN AW-5086-H38 | EN 573-3 | | ISO Standard | AlMg4-H38 | ISO 209 | | JIS Standard | A5086-H38 | JIS H4000 | | GB Standard | 5086-H38 | GB/T 3880 | --- ## 10. Special Properties - **Ultra-High Strength-to-Weight Ratio**: Exceptional for weight-critical applications - **Structural Integrity**: Excellent stability under heavy loads - **Thermal Stability**: Maintains properties at moderate temperatures - **Impact Resistance**: Good energy absorption characteristics - **Manufacturing Consistency**: Tight control of mechanical properties - **Long-Term Performance**: Reliable service in demanding conditions --- ## 11. Quality Assurance - Certified to H38 temper specifications - Stringent mechanical property control - Chemical composition verification - Microstructural examination - Surface quality inspection - Third-party certification available --- ## 12. Design Considerations - **Maximum Strength Utilization**: Designed for ultra-high stress applications - **Severe Forming Limitations**: Very restricted forming capability - **Joining Restrictions**: Limited welding capability - **Springback Management**: Critical in design calculations - **Weight Optimization**: Maximum weight savings versus steel - **Special Handling**: Requires careful processing and fabrication --- ## 13. Comparative Analysis | Property | 5086-H38 | 5086-H36 | 5083-H38 | |----------|-----------|-----------|-----------| | Tensile Strength (MPa) | 340–390 | 315–365 | 380–430 | | Yield Strength (MPa) | 285–325 | 250–290 | 330–370 | | Elongation (%) | 5–8 | 6–10 | 4–7 | | Typical Applications | Maximum strength parts | High-strength components | Ultra-high strength marine | --- *Note: 5086-H38 aluminum alloy represents the pinnacle of strength achievement in the 5086 series through strain hardening. This temper provides maximum mechanical properties for the most demanding structural applications while maintaining the corrosion resistance characteristics of the 5086 alloy system. Designers must carefully consider the material's limited formability and special processing requirements when specifying H38 temper for applications.*

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 1831 gallon liquid totes Special package is available on request.