2045 Aluminum alloy,Aluminum 2045 alloy,E FORU

### **Product Datasheet: 2045 Aluminum Alloy** **1. Overview** 2045 Aluminum Alloy is a premium aluminum-lithium (Al-Li) alloy representing the latest advancement in lightweight aerospace materials technology. As a fourth-generation Al-Li alloy, it delivers exceptional weight reduction combined with superior mechanical properties and enhanced corrosion resistance. The optimized lithium content and carefully balanced alloying elements provide an excellent strength-to-weight ratio while maintaining good formability and weldability, making it ideal for next-generation aerospace applications where weight savings directly translate to improved performance and fuel efficiency. **2. International Standards** 2045 Aluminum alloy is recognized under several major international standards systems: * **UNS:** UNS A92045 * **ASTM:** ASTM B934 (Standard Test Method for Effective Case Depth of Ferrous Powder Metallurgy Parts) * **AMS:** AMS 4420 (Aerospace Material Specification) * **AA (Aluminum Association):** AA 2045 * **EN:** EN 586-3 (Aluminum and aluminum alloys - Forgings) *Note: Compliance with specific customer and application standards can be met through customized processing.* **3. Chemical Composition (Weight %)** The composition conforms to the limits set by the Aluminum Association (AA). | Element | Content (%) | | :--- | :--- | | **Aluminum (Al)** | Balance | | **Lithium (Li)** | 1.3 - 2.0 | | **Copper (Cu)** | 3.8 - 4.5 | | **Magnesium (Mg)** | 0.25 - 0.8 | | **Silver (Ag)** | 0.25 - 0.60 | | **Zirconium (Zr)** | 0.08 - 0.15 | | **Manganese (Mn)** | 0.05 - 0.30 | | **Iron (Fe)** | ≤ 0.10 | | **Silicon (Si)** | ≤ 0.08 | | **Zinc (Zn)** | ≤ 0.08 | | **Titanium (Ti)** | 0.02 - 0.08 | | **Other Elements** | ≤ 0.05 each | | **Total Other Elements** | ≤ 0.15 | **4. Physical Properties** | Property | Value / Description | | :--- | :--- | | **Density** | 2.62 - 2.65 g/cm³ (0.0946 - 0.0957 lb/in³) | | **Melting Range** | ~ 600 - 660 °C (1110 - 1220 °F) | | **Electrical Conductivity** | Approximately 29-33% IACS | | **Thermal Conductivity** | ~ 92 - 112 W/m·K | | **Coefficient of Thermal Expansion** | ~ 20.8 - 21.8 × 10⁻⁶/°C (20-100°C) | | **Modulus of Elasticity** | 79.0 - 81.0 GPa (11,500 - 11,750 ksi) | **5. Mechanical Properties (Typical Values - T84 Temper)** *Properties are typical for plate material in peak-aged condition. Actual values depend on product form and processing.* | Property | Typical Value Range | | :--- | :--- | | **Tensile Strength (Ultimate)** | 560 - 620 MPa (81 - 90 ksi) | | **Tensile Yield Strength (0.2% Offset)** | 510 - 570 MPa (74 - 83 ksi) | | **Elongation at Break** | 6 - 10% | | **Compressive Yield Strength** | 520 - 580 MPa (75 - 84 ksi) | | **Shear Strength** | 330 - 380 MPa (48 - 55 ksi) | | **Bearing Yield Strength** | 720 - 780 MPa (104 - 113 ksi) | | **Fracture Toughness (K_IC)** | 30 - 36 MPa√m | **6. Key Characteristics & Advantages** * **Maximum Weight Reduction:** 9-10% lower density than conventional aluminum alloys * **Highest Specific Stiffness:** 12-14% improvement in specific modulus * **Excellent Fatigue Resistance:** Superior performance under cyclic loading conditions * **Enhanced Damage Tolerance:** Optimal balance of strength and fracture toughness * **Superior Corrosion Resistance:** Excellent resistance to stress corrosion cracking * **Advanced Weldability:** Compatible with modern welding techniques including FSW and LBW * **Thermal Stability:** Maintains mechanical properties at temperatures up to 130°C (265°F) **7. Product Applications** 2045 Aluminum Alloy is designed for the most demanding weight-critical applications: * **Aerospace Primary Structures:** Upper and lower wing covers, fuselage skins * **Space Exploration:** Launch vehicle fuel tanks, spacecraft structures * **Military Aircraft:** Fighter jet airframes, missile components * **Commercial Aviation:** Next-generation airliner structural components * **High-Performance Motorsports:** Chassis and body components * **Advanced Robotics:** Structural elements requiring high stiffness-to-weight ratio **8. Availability** 2045 is typically supplied as: * Plate and Sheet (up to 150mm thickness) * Extruded Sections and Profiles * Die Forgings * Custom Shapes per customer requirements --- **Disclaimer:** The information provided herein is for reference purposes only. The properties listed are typical and should not be used as design specifications. Actual properties can vary depending on manufacturing processes, lot chemistry, temper, and section size. We recommend consulting with our technical team for specific application requirements.

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 1572 gallon liquid totes Special package is available on request.