2044 Aluminum alloy,Aluminum 2044 alloy,E FORU

### **Product Datasheet: 2044 Aluminum Alloy** **1. Overview** 2044 Aluminum Alloy is a advanced aluminum-lithium (Al-Li) alloy developed for superior weight reduction and enhanced mechanical properties in aerospace applications. As part of the third-generation Al-Li alloys, it offers an optimal balance of reduced density, improved specific stiffness, excellent fatigue performance, and good corrosion resistance. The strategic addition of lithium provides significant weight savings while maintaining high strength characteristics, making this alloy particularly suitable for next-generation aircraft structures where weight reduction is critical for improved fuel efficiency and performance. **2. International Standards** 2044 Aluminum alloy is recognized under several major international standards systems: * **UNS:** UNS A92044 * **ASTM:** ASTM B928 (Standard Specification for High Magnesium Aluminum-Alloy Products for Marine Service) * **AMS:** AMS 4416 (Aerospace Material Specification) * **AA (Aluminum Association):** AA 2044 * **EN:** EN 485 (Aluminum and aluminum alloys - Sheet, strip and plate) *Note: Specific applications may require compliance with additional customer-specific specifications.* **3. Chemical Composition (Weight %)** The composition conforms to the limits set by the Aluminum Association (AA). | Element | Content (%) | | :--- | :--- | | **Aluminum (Al)** | Balance | | **Lithium (Li)** | 1.2 - 1.8 | | **Copper (Cu)** | 3.6 - 4.4 | | **Magnesium (Mg)** | 0.30 - 0.8 | | **Silver (Ag)** | 0.25 - 0.60 | | **Zirconium (Zr)** | 0.08 - 0.16 | | **Manganese (Mn)** | 0.10 - 0.40 | | **Iron (Fe)** | ≤ 0.12 | | **Silicon (Si)** | ≤ 0.10 | | **Zinc (Zn)** | ≤ 0.10 | | **Titanium (Ti)** | 0.02 - 0.10 | | **Other Elements** | ≤ 0.05 each | | **Total Other Elements** | ≤ 0.15 | **4. Physical Properties** | Property | Value / Description | | :--- | :--- | | **Density** | 2.64 - 2.67 g/cm³ (0.0954 - 0.0964 lb/in³) | | **Melting Range** | ~ 590 - 655 °C (1095 - 1210 °F) | | **Electrical Conductivity** | Approximately 30-34% IACS | | **Thermal Conductivity** | ~ 95 - 115 W/m·K | | **Coefficient of Thermal Expansion** | ~ 21.0 - 22.0 × 10⁻⁶/°C (20-100°C) | | **Modulus of Elasticity** | 78.5 - 80.5 GPa (11,400 - 11,700 ksi) | **5. Mechanical Properties (Typical Values - T8 Temper)** *Properties represent typical values for plate products. Actual values may vary with processing parameters.* | Property | Typical Value Range | | :--- | :--- | | **Tensile Strength (Ultimate)** | 540 - 590 MPa (78 - 86 ksi) | | **Tensile Yield Strength (0.2% Offset)** | 490 - 540 MPa (71 - 78 ksi) | | **Elongation at Break** | 7 - 11% | | **Compressive Yield Strength** | 500 - 550 MPa (73 - 80 ksi) | | **Shear Strength** | 320 - 360 MPa (46 - 52 ksi) | | **Bearing Yield Strength** | 690 - 750 MPa (100 - 109 ksi) | | **Fatigue Endurance Limit** | ~ 170 - 190 MPa (25 - 28 ksi) | **6. Key Characteristics & Advantages** * **Significant Weight Saving:** 8-9% density reduction compared to conventional aluminum alloys * **Enhanced Specific Stiffness:** 11-13% improvement in specific modulus * **Excellent Fatigue Performance:** Superior resistance to fatigue crack growth * **Good Damage Tolerance:** Balanced combination of strength and fracture toughness * **Improved Corrosion Resistance:** Enhanced resistance to stress corrosion cracking * **Weldability:** Suitable for fusion and friction stir welding processes * **Thermal Stability:** Maintains properties at elevated temperatures up to 120°C (250°F) **7. Product Applications** 2044 Aluminum Alloy is primarily used in advanced weight-critical applications: * **Aerospace Structures:** Lower wing skins, fuselage stringers, and pressure bulkheads * **Space Systems:** Launch vehicle structures and satellite components * **Military Aviation:** Fighter aircraft wings and empennage components * **Commercial Aircraft:** Primary structural elements in modern airliners * **High-Performance Automotive:** Racing chassis and suspension components * **Marine Applications:** High-speed vessel structures **8. Availability** 2044 is typically supplied as: * Plate and Sheet * Extruded Profiles * Forgings * Rolled Ring Products --- **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 1571 gallon liquid totes Special package is available on request.