5070 Aluminum alloy,Aluminum 5070 alloy,E FORU

### **Technical Datasheet: 5070 Aluminum Alloy** --- #### **1. Material Overview** **5070 Aluminum Alloy** is a high-strength aluminum-magnesium alloy known for its excellent corrosion resistance, particularly in marine environments. It belongs to the 5xxx series of aluminum alloys, which are non-heat-treatable and derive their strength from solid solution strengthening and strain hardening. 5070 offers a good balance of strength, formability, and weldability, making it suitable for various demanding applications. --- #### **2. Chemical Composition (Weight %)** | Element | Content (%) | Role in the Alloy | |---------|-------------|-------------------| | Al | Balance | Base metal | | Mg | 2.5-3.5 | Primary strengthening element, provides solid solution strengthening | | Mn | 0.20-0.50 | Enhances strength and work hardening response | | Cr | 0.05-0.25 | Improves stress corrosion resistance | | Cu | ≤0.05 | Kept low to maintain corrosion resistance | | Fe | ≤0.35 | Impurity control | | Si | ≤0.25 | Impurity control | | Zn | ≤0.10 | Impurity control | | Ti | ≤0.10 | Grain refinement | | Others (each) | ≤0.05 | - | | Others (total) | ≤0.15 | - | --- #### **3. Physical Properties** | Property | Value | Test Standard | |----------|-------|---------------| | Density | 2.69 g/cm³ | ASTM B193 | | Melting Range | 610-650 °C | - | | Electrical Conductivity | 35-40% IACS | ASTM B193 | | Thermal Conductivity | 130-140 W/m·K | ASTM E1461 | | Coefficient of Thermal Expansion | 23.8 × 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 by Temper)** | Temper | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness (HB) | |--------|------------------------|----------------------|----------------|---------------| | O | 200-250 | 80-120 | 20-26 | 50-60 | | H32 | 260-310 | 200-240 | 12-16 | 70-80 | | H34 | 290-340 | 230-270 | 10-14 | 75-85 | | H36 | 310-360 | 250-290 | 8-12 | 80-90 | --- #### **5. Key Characteristics** - **Excellent Corrosion Resistance**: Outstanding performance in marine and chemical environments - **Good Strength-to-Weight Ratio**: Favorable mechanical properties for weight-sensitive applications - **Excellent Formability**: Can be easily formed and fabricated in various tempers - **Superior Weldability**: All standard welding methods produce high-quality results - **Good Fatigue Resistance**: Suitable for dynamic loading applications - **Stress Corrosion Cracking Resistance**: Good resistance to SCC in marine environments --- #### **6. Processing Characteristics** **Forming Operations:** - Excellent deep drawing capability (O temper) - Good bending and roll forming characteristics - Suitable for stamping and pressing operations - Moderate springback in strain-hardened tempers **Joining Methods:** - GTAW (TIG) - Excellent with 5356 filler rod - GMAW (MIG) - Excellent results - Resistance welding - Very good - Adhesive bonding - Excellent - Mechanical fastening - Good - Brazing - Suitable **Surface Treatments:** - Anodizing - Very good results - Chemical conversion coatings - Excellent corrosion protection - Painting - Good adhesion with proper surface preparation - Powder coating - Excellent finish quality - Electroplating - Suitable with proper preparation --- #### **7. Product Applications** **Marine and Offshore:** - Boat hulls and superstructures - Marine fittings and hardware - Offshore platform components - Ship building applications **Transportation Industry:** - Automotive body panels - Truck and trailer components - Railway carriage parts - Vehicle structural components **Architectural Applications:** - Building facades and panels - Roofing and siding systems - Architectural trim and decorations - Window and door frames **Industrial Applications:** - Pressure vessels and tanks - Chemical processing equipment - Food processing machinery - Electrical enclosures and cabinets --- #### **8. Available Forms & Sizes** - Sheet: 0.5mm to 6.0mm thickness - Plate: 6mm to 50mm thickness - Coil: Up to 1500mm width - Strip: 0.3mm to 3.0mm thickness - Custom blanks: Various sizes and shapes --- #### **9. International Standards** | Standard Organization | Designation | Specification | |----------------------|-------------|---------------| | Aluminum Association | AA 5070 | AA-50 | | ASTM International | ASTM B209-5070 | ASTM B209 | | EN Standard | EN AW-5070 | EN 573-3 | | ISO Standard | AlMg3 | ISO 209 | | JIS Standard | A5070 | JIS H4000 | | GB Standard | 5070 | GB/T 3190 | --- #### **10. Special Properties** - **Seawater Resistance**: Excellent performance in saltwater environments - **Atmospheric Corrosion Resistance**: Superior durability in industrial and marine atmospheres - **Cryogenic Toughness**: Good mechanical properties at low temperatures - **Thermal Conductivity**: Effective heat transfer capabilities - **Non-Sparking Characteristics**: Safe for use in flammable environments - **Recyclability**: 100% recyclable without property loss --- #### **11. Quality Assurance** - Certified chemical composition - Verified mechanical properties - Surface quality inspection - Dimensional accuracy control - Non-destructive testing capabilities - Third-party certification available --- #### **12. Design Advantages** - **Weight Reduction**: Significant savings compared to steel (approximately 65%) - **Life Cycle Cost**: Reduced maintenance and long service life - **Design Flexibility**: Suitable for complex shapes and structures - **Environmental Resistance**: Excellent durability in corrosive environments - **Manufacturing Efficiency**: Easy to fabricate and assemble --- #### **13. Comparative Performance** | Property | 5070 vs 5052 | 5070 vs 5083 | |----------|--------------|--------------| | Strength | Higher | Slightly lower | | Corrosion Resistance | Comparable | Comparable | | Formability | Slightly lower | Better | | Cost | Moderate | More economical | --- *Note: 5070 aluminum alloy offers an excellent combination of corrosion resistance, mechanical properties, and manufacturability. Its balanced characteristics make it particularly suitable for marine applications, transportation equipment, and architectural structures where durability and performance are essential. The alloy's good weldability and formability further enhance its versatility in various industrial 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 1820 gallon liquid totes Special package is available on request.