2196 Aluminum alloy,Aluminum 2196 alloy,E FORU

### **Product Datasheet: 2196 Aluminum Alloy** --- #### **1. Overview** 2196 Aluminum Alloy is a third-generation aluminum-lithium (Al-Cu-Li) alloy specifically developed for high-strength extruded applications in the aerospace industry. This advanced alloy offers an excellent combination of low density, high strength, and superior damage tolerance, making it particularly suitable for complex extruded profiles in aircraft structures. 2196 represents a significant improvement over conventional aluminum alloys in terms of weight savings and mechanical performance for extruded components. --- #### **2. International Standards** - **UNS**: UNS A92196 - **ASTM**: ASTM B221 (Standard Specification for Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes) - **AMS**: AMS 4333 (Aerospace Material Specification) - **AA (Aluminum Association)**: AA 2196 - **ISO**: ISO 6362 (Wrought Aluminum and Aluminum Alloy Extruded Rod/Bar, Tube, and Profiles) --- #### **3. Chemical Composition (Weight %)** | Element | Content (%) | |---------|-------------| | **Aluminum (Al)** | Balance | | **Copper (Cu)** | 2.5–3.3 | | **Lithium (Li)** | 1.4–2.1 | | **Magnesium (Mg)** | 0.25–0.8 | | **Silver (Ag)** | 0.25–0.60 | | **Zirconium (Zr)** | 0.08–0.16 | | **Manganese (Mn)** | 0.10–0.50 | | **Zinc (Zn)** | ≤ 0.35 | | **Iron (Fe)** | ≤ 0.15 | | **Silicon (Si)** | ≤ 0.12 | | **Titanium (Ti)** | ≤ 0.10 | | **Other Elements** | ≤ 0.05 each | | **Total Others** | ≤ 0.15 | --- #### **4. Physical Properties** | Property | Value | |----------|-------| | **Density** | 2.59–2.62 g/cm³ (0.0935–0.0946 lb/in³) | | **Melting Range** | ~555–650°C (1030–1200°F) | | **Electrical Conductivity** | ~28–32 % IACS | | **Thermal Conductivity** | 85–105 W/m·K | | **Coefficient of Thermal Expansion** | 21.5–22.5 × 10⁻⁶/°C (20–100°C) | | **Modulus of Elasticity** | 78.0–80.0 GPa (11,300–11,600 ksi) | --- #### **5. Mechanical Properties (Typical Values - T8 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** | 7–11% | | **Compressive Yield Strength** | 480–530 MPa (70–77 ksi) | | **Shear Strength** | 300–340 MPa (44–49 ksi) | | **Bearing Yield Strength** | 760–830 MPa (110–120 ksi) | | **Fracture Toughness (L-T方向)** | 29–35 MPa√m | | **Fatigue Strength** | 160–190 MPa (23–28 ksi) | --- #### **6. Key Characteristics & Advantages** - **Excellent Extrudability**: Superior performance in complex extrusion profiles - **Significant Weight Reduction**: 8–10% lower density than conventional aluminum alloys - **High Strength-to-Weight Ratio**: Outstanding mechanical properties for weight-critical applications - **Enhanced Stiffness**: 10–12% higher modulus than traditional aluminum alloys - **Good Damage Tolerance**: Balanced combination of strength and fracture toughness - **Improved Corrosion Resistance**: Better than earlier Al-Li alloy generations - **Weldability**: Suitable for various joining techniques including friction stir welding --- #### **7. Product Applications** - **Aircraft Extrusions**: Fuselage stringers, frames, and floor beams - **Wing Structures**: Spars, ribs, and other structural components - **Spacecraft Components**: Satellite frames and launch vehicle structures - **Helicopter Structures**: Airframe components and rotor system parts - **Commercial Aviation**: Airbus A350 and other modern aircraft components - **Military Applications**: Military transport aircraft structural members --- #### **8. Available Forms** - Extruded Profiles and Shapes - Bars and Rods - Custom Extruded Sections - Drawn Tubes --- #### **9. Processing and Special Considerations** - **Extrusion Parameters**: Optimized for complex thin-walled profiles - **Heat Treatment**: Responsive to artificial aging for property optimization - **Machining**: Good machinability with proper techniques - **Joining**: Excellent for adhesive bonding and mechanical fastening - **Surface Treatment**: Compatible with standard aerospace coatings - **Quality Control**: Stringent inspection for aerospace applications - **Design Flexibility**: Suitable for complex integrated structures --- **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 certification 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 1603 gallon liquid totes Special package is available on request.