2296 Aluminum alloy,Aluminum 2296 alloy,E FORU

### **Product Datasheet: 2296 Aluminum Alloy** --- #### **1. Overview** 2296 Aluminum Alloy is a third-generation aluminum-lithium (Al-Cu-Li) alloy specifically developed for superior damage tolerance and excellent mechanical properties in aerospace structural applications. This advanced alloy offers a remarkable combination of low density, high strength, and enhanced corrosion resistance compared to conventional aluminum alloys. 2296 is particularly designed for applications where weight reduction, durability, and performance are critical requirements in modern aircraft and aerospace structures. --- #### **2. International Standards** - **UNS**: UNS A92296 - **ASTM**: ASTM B209 (Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate) - **AMS**: AMS 4411 (Aerospace Material Specification) - **AA (Aluminum Association)**: AA 2296 - **ISO**: ISO 6361-2 (Wrought Aluminum and Aluminum Alloy Sheet, Strip and Plate) --- #### **3. Chemical Composition (Weight %)** | Element | Content (%) | |---------|-------------| | **Aluminum (Al)** | Balance | | **Copper (Cu)** | 2.6–3.4 | | **Lithium (Li)** | 1.5–2.1 | | **Magnesium (Mg)** | 0.25–0.8 | | **Silver (Ag)** | 0.25–0.60 | | **Manganese (Mn)** | 0.20–0.6 | | **Zirconium (Zr)** | 0.08–0.16 | | **Zinc (Zn)** | ≤ 0.25 | | **Iron (Fe)** | ≤ 0.10 | | **Silicon (Si)** | ≤ 0.08 | | **Titanium (Ti)** | ≤ 0.10 | | **Other Elements** | ≤ 0.05 each | | **Total Others** | ≤ 0.15 | --- #### **4. Physical Properties** | Property | Value | |----------|-------| | **Density** | 2.60–2.63 g/cm³ (0.0939–0.0950 lb/in³) | | **Melting Range** | ~555–650°C (1030–1200°F) | | **Electrical Conductivity** | ~26–30 % IACS | | **Thermal Conductivity** | 85–105 W/m·K | | **Coefficient of Thermal Expansion** | 21.2–22.2 × 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)** | Property | Typical Value | |----------|---------------| | **Tensile Strength (Ultimate)** | 510–560 MPa (74–81 ksi) | | **Tensile Yield Strength (0.2% Offset)** | 460–510 MPa (67–74 ksi) | | **Elongation at Break** | 8–12% | | **Compressive Yield Strength** | 470–520 MPa (68–75 ksi) | | **Shear Strength** | 300–340 MPa (44–49 ksi) | | **Bearing Yield Strength** | 780–850 MPa (113–123 ksi) | | **Fracture Toughness (L-T方向)** | 30–36 MPa√m | | **Fatigue Strength** | 170–200 MPa (25–29 ksi) | --- #### **6. Key Characteristics & Advantages** - **Significant Weight Reduction**: 8–10% lower density than conventional aluminum alloys - **Enhanced Stiffness**: 10–12% higher modulus than traditional aluminum alloys - **Superior Damage Tolerance**: Excellent combination of strength and fracture toughness - **Improved Corrosion Resistance**: Better performance than earlier Al-Li alloys - **Excellent Fatigue Performance**: Superior resistance to crack initiation and growth - **Reduced Anisotropy**: More uniform properties than previous generations - **Weldability**: Good performance with modern welding techniques --- #### **7. Product Applications** - **Aircraft Fuselage Components**: Skin panels and stringers - **Wing Structures**: Upper and lower wing skins - **Spacecraft Components**: Structural frames and supports - **Military Aircraft**: Weight-critical structural components - **Helicopter Structures**: Airframe components and panels - **Commercial Aviation**: Next-generation airliner structures --- #### **8. Available Forms** - Sheet (0.8–8.0 mm thickness) - Plate (8–120 mm thickness) - Extruded Profiles - Custom Formed Components --- #### **9. Processing and Quality Assurance** - **Heat Treatment**: Responsive to artificial aging treatments - **Machining**: Good machinability with proper techniques - **Forming**: Suitable for forming in solution-treated condition - **Welding**: Compatible with friction stir and conventional welding - **Surface Protection**: Standard aerospace coating systems applicable - **Quality Control**: Comprehensive testing for aerospace certification - **Certification**: Full material traceability and documentation --- **Disclaimer**: The information presented is typical and for reference only. Actual properties may vary with processing, size, and heat treatment. For critical aerospace 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 1631 gallon liquid totes Special package is available on request.