2050 Aluminum alloy,Aluminum 2050 alloy,E FORU

### **Product Datasheet: 2050 Aluminum Alloy** --- #### **1. Overview** 2050 Aluminum Alloy is a advanced aluminum-lithium (Al-Li) alloy developed as a damage-tolerant alternative to conventional 2xxx and 7xxx series alloys. Designated as a third-generation Al-Li alloy, it offers an exceptional combination of low density, high strength, excellent fatigue resistance, and superior damage tolerance. The alloy is particularly suitable for thick-section applications in aerospace structures where weight reduction and structural efficiency are critical requirements. --- #### **2. International Standards** - **UNS**: UNS A92050 - **ASTM**: ASTM B909 (Standard Guide for Aircraft Materials) - **AMS**: AMS 4414 (Aerospace Material Specification) - **AA (Aluminum Association)**: AA 2050 - **EN Standards**: EN 485-2 (Sheet/Plate) and EN 586-2 (Forgings) - **Airbus**: ABP 10021 (Material Specification) --- #### **3. Chemical Composition (Weight %)** | Element | Content (%) | |---------|-------------| | **Aluminum (Al)** | Balance | | **Copper (Cu)** | 3.2–3.9 | | **Lithium (Li)** | 0.7–1.3 | | **Magnesium (Mg)** | 0.20–0.6 | | **Silver (Ag)** | 0.20–0.50 | | **Manganese (Mn)** | 0.20–0.50 | | **Zirconium (Zr)** | 0.06–0.14 | | **Iron (Fe)** | ≤ 0.12 | | **Silicon (Si)** | ≤ 0.08 | | **Zinc (Zn)** | ≤ 0.25 | | **Titanium (Ti)** | ≤ 0.10 | | **Other Elements** | ≤ 0.05 each | | **Total Others** | ≤ 0.15 | --- #### **4. Physical Properties** | Property | Value | |----------|-------| | **Density** | 2.70–2.72 g/cm³ (0.0975–0.0982 lb/in³) | | **Melting Range** | ~540–650°C (1000–1200°F) | | **Electrical Conductivity** | ~32–36 % IACS | | **Thermal Conductivity** | 105–120 W/m·K | | **Coefficient of Thermal Expansion** | 22.0–23.0 × 10⁻⁶/°C (20–100°C) | | **Modulus of Elasticity** | 77.0–79.0 GPa (11,200–11,500 ksi) | --- #### **5. Mechanical Properties (Typical Values - T84 Temper)** | Property | Typical Value | |----------|---------------| | **Tensile Strength (Ultimate)** | 520–570 MPa (75–83 ksi) | | **Tensile Yield Strength (0.2% Offset)** | 470–520 MPa (68–75 ksi) | | **Elongation at Break** | 8–12% | | **Compressive Yield Strength** | 480–530 MPa (70–77 ksi) | | **Shear Strength** | 300–340 MPa (44–49 ksi) | | **Fatigue Crack Growth Resistance** | Excellent | | **Fracture Toughness (K_IC)** | 32–38 MPa√m | --- #### **6. Key Characteristics & Advantages** - **Weight Reduction**: 5–7% lower density compared to conventional aluminum alloys - **Enhanced Stiffness**: 6–8% higher modulus than traditional alloys - **Superior Damage Tolerance**: Excellent combination of strength and fracture toughness - **Good Fatigue Performance**: Enhanced resistance to crack propagation - **Corrosion Resistance**: Improved stress corrosion cracking resistance - **Weldability**: Suitable for friction stir welding and conventional welding methods - **Thick-Section Capability**: Maintains consistent properties in thick plates --- #### **7. Product Applications** - **Aerospace Structures**: Lower wing skins, fuselage panels, and bulkheads - **Military Aircraft**: Airframe components and structural members - **Space Applications**: Launch vehicle structures and fuel tanks - **Commercial Aviation**: Airbus A350 and other modern aircraft components - **Heavy-Lift Helicopters**: Primary structural elements --- #### **8. Available Forms** - Plate (up to 200 mm thickness) - Sheet and Strip - Extrusions - Forgings --- **Disclaimer**: The information presented is typical and for reference only. Actual properties may vary with processing, size, and heat treatment. For critical applications, contact our technical service team for specific data and processing recommendations.

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 1574 gallon liquid totes Special package is available on request.