2324-T39 Aluminum alloy,Aluminum 2324-T39 alloy,E FORU

### **Product Datasheet: 2324-T39 Aluminum Alloy** --- #### **1. Overview** 2324-T39 Aluminum Alloy is a high-strength aluminum-copper-magnesium alloy supplied in the T39 temper (solution heat-treated, cold worked, and naturally aged to a specific property level). This premium aerospace alloy offers an exceptional combination of high strength, superior damage tolerance, and excellent fatigue resistance. The T39 temper provides optimized mechanical properties for aircraft structural applications where both strength and durability are critical requirements, particularly in lower wing skins and other compression-dominated structures. --- #### **2. International Standards** - **UNS**: UNS A92324 - **ASTM**: ASTM B209 (Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate) - **AMS**: AMS 4250 (Aerospace Material Specification) - **AA (Aluminum Association)**: AA 2324 - **ISO**: ISO 6361-2 (Wrought Aluminum and Aluminum Alloy Sheet, Strip and Plate) --- #### **3. Chemical Composition (Weight %)** | Element | Content (%) | |---------|-------------| | **Aluminum (Al)** | Balance | | **Copper (Cu)** | 3.8–4.4 | | **Magnesium (Mg)** | 1.2–1.8 | | **Manganese (Mn)** | 0.30–0.9 | | **Iron (Fe)** | ≤ 0.12 | | **Silicon (Si)** | ≤ 0.10 | | **Zinc (Zn)** | ≤ 0.25 | | **Chromium (Cr)** | ≤ 0.10 | | **Titanium (Ti)** | ≤ 0.15 | | **Other Elements** | ≤ 0.05 each | | **Total Others** | ≤ 0.15 | --- #### **4. Physical Properties** | Property | Value | |----------|-------| | **Density** | 2.78–2.80 g/cm³ (0.100–0.101 lb/in³) | | **Melting Range** | ~550–640°C (1020–1185°F) | | **Electrical Conductivity** | ~33–37 % IACS | | **Thermal Conductivity** | 115–135 W/m·K | | **Coefficient of Thermal Expansion** | 22.8–23.8 × 10⁻⁶/°C (20–100°C) | | **Modulus of Elasticity** | 71.0–73.0 GPa (10,300–10,600 ksi) | --- #### **5. Mechanical Properties (T39 Temper Condition)** | Property | Typical Value | |----------|---------------| | **Tensile Strength (Ultimate)** | 460–510 MPa (67–74 ksi) | | **Tensile Yield Strength (0.2% Offset)** | 350–400 MPa (51–58 ksi) | | **Elongation at Break** | 9–13% | | **Compressive Yield Strength** | 360–410 MPa (52–59 ksi) | | **Shear Strength** | 270–310 MPa (39–45 ksi) | | **Bearing Yield Strength** | 650–710 MPa (94–103 ksi) | | **Fracture Toughness (L-T方向)** | 29–35 MPa√m | | **Fatigue Strength** | 170–200 MPa (25–29 ksi) | --- #### **6. Key Characteristics & Advantages** - **Optimized Property Balance**: T39 temper provides superior strength-toughness combination - **Enhanced Damage Tolerance**: Excellent fracture toughness for critical structures - **Superior Fatigue Performance**: Outstanding resistance to crack initiation and growth - **High Strength-to-Weight Ratio**: Premium mechanical properties for aerospace applications - **Good Stress Corrosion Resistance**: Suitable for demanding service environments - **Natural Aging Stability**: Properties stabilize through controlled aging process - **Aerospace Proven**: Extensive use in commercial aircraft primary structures --- #### **7. Product Applications** - **Aircraft Lower Wing Skins**: Primary application in commercial airliners - **Fuselage Components**: Skin panels and structural members - **Wing Structures**: Spars, ribs, and stringers - **Military Aircraft**: Critical structural components - **Spacecraft**: Primary and secondary structural elements - **Helicopter Components**: Airframe structures --- #### **8. Available Forms** - Plate (6–100 mm thickness) - Sheet (1.0–8.0 mm thickness) - Custom Sized Blanks - Pre-formed Components --- #### **9. Processing and Quality Assurance** - **Heat Treatment**: Controlled natural aging to specific property levels - **Machining**: Good machinability with proper techniques - **Forming**: Suitable for forming operations in appropriate conditions - **Welding**: Can be welded with proper procedures - **Quality Control**: Stringent aerospace quality standards - **Testing**: Comprehensive mechanical and metallurgical testing - **Certification**: Full traceability and aerospace certification --- **Disclaimer**: The information presented is typical and for reference only. Actual properties may vary with processing and specific manufacturing conditions. 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 1634 gallon liquid totes Special package is available on request.