2090-T3 Aluminum alloy,Aluminum 2090-T3 alloy,E FORU

### **Product Datasheet: 2090-T3 Aluminum Alloy** --- #### **1. Overview** 2090-T3 Aluminum Alloy is a first-generation aluminum-lithium (Al-Cu-Li) alloy supplied in the T3 temper (solution heat-treated, cold worked, and naturally aged). This condition provides a favorable combination of medium strength and good damage tolerance while maintaining the significant weight reduction characteristic of aluminum-lithium alloys. The T3 temper offers excellent balance between formability and mechanical properties, making it suitable for aerospace applications requiring moderate strength with good fracture toughness. --- #### **2. International Standards** - **UNS**: UNS A92090 - **ASTM**: ASTM B209 (Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate) - **AMS**: AMS 4254 (Aerospace Material Specification) - **AA (Aluminum Association)**: AA 2090 - **ISO**: ISO 6361-2 (Wrought Aluminum and Aluminum Alloy Sheet, Strip and Plate) --- #### **3. Chemical Composition (Weight %)** | Element | Content (%) | |---------|-------------| | **Aluminum (Al)** | Balance | | **Copper (Cu)** | 2.4–3.0 | | **Lithium (Li)** | 1.9–2.6 | | **Zirconium (Zr)** | 0.08–0.15 | | **Iron (Fe)** | ≤ 0.12 | | **Silicon (Si)** | ≤ 0.10 | | **Manganese (Mn)** | ≤ 0.05 | | **Magnesium (Mg)** | ≤ 0.05 | | **Zinc (Zn)** | ≤ 0.10 | | **Titanium (Ti)** | ≤ 0.15 | | **Other Elements** | ≤ 0.05 each | | **Total Others** | ≤ 0.15 | --- #### **4. Physical Properties** | Property | Value | |----------|-------| | **Density** | 2.59–2.61 g/cm³ (0.0935–0.0942 lb/in³) | | **Melting Range** | ~570–660°C (1060–1220°F) | | **Electrical Conductivity** | ~24–28 % IACS | | **Thermal Conductivity** | 70–90 W/m·K | | **Coefficient of Thermal Expansion** | 21.0–22.0 × 10⁻⁶/°C (20–100°C) | | **Modulus of Elasticity** | 77.0–79.0 GPa (11,200–11,500 ksi) | --- #### **5. Mechanical Properties (T3 Temper Condition)** | Property | Typical Value | |----------|---------------| | **Tensile Strength (Ultimate)** | 380–450 MPa (55–65 ksi) | | **Tensile Yield Strength (0.2% Offset)** | 240–310 MPa (35–45 ksi) | | **Elongation at Break** | 10–15% | | **Compressive Yield Strength** | 250–320 MPa (36–46 ksi) | | **Shear Strength** | 230–280 MPa (33–41 ksi) | | **Bearing Yield Strength** | 360–420 MPa (52–61 ksi) | | **Fracture Toughness (L-T方向)** | 28–35 MPa√m | | **Fatigue Strength** | 130–160 MPa (10⁷ cycles) | --- #### **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 - **Good Damage Tolerance**: Balanced combination of strength and fracture toughness - **Anisotropic Properties**: Mechanical properties vary with grain direction - **Natural Aging Stability**: Properties stabilize after natural aging period - **Cryogenic Performance**: Excellent properties at low temperatures - **Formability**: Can be formed in T3 condition for moderate deformation --- #### **7. Product Applications** - **Aircraft Structures**: Fuselage skins and wing panels - **Aerospace Components**: Secondary structural elements - **Cryogenic Tanks**: Components for liquid gas storage - **Spacecraft Structures**: Weight-sensitive space applications - **Military Aircraft**: Components requiring weight reduction - **Helicopter Structures**: Rotor blades and airframe components --- #### **8. Available Forms** - Sheet (0.5–6.0 mm thickness) - Plate (6–50 mm thickness) - Extruded Profiles and Bars - Drawn Tubes --- #### **9. Processing Notes** - **Forming**: Good formability in T3 temper; moderate deformation possible - **Machining**: Good machinability with proper techniques - **Heat Treatment**: Can be further aged to T8 temper for higher strength - **Joining**: Weldable with proper procedures; properties affected by heat input - **Anisotropy Consideration**: Design must account for directional properties - **Corrosion Protection**: Requires protection in corrosive environments --- **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 1582 gallon liquid totes Special package is available on request.