2040 Aluminum alloy,Aluminum 2040 alloy,E FORU

### **Product Datasheet: 2040 Aluminum Alloy** **1. Overview** 2040 Aluminum Alloy is a high-performance wrought aluminum-copper alloy within the 2xxx series, specifically engineered to provide an exceptional combination of high strength, excellent fatigue resistance, and good damage tolerance. This heat-treatable alloy is particularly noted for its superior mechanical properties at both room and elevated temperatures, making it suitable for demanding structural applications in aerospace and defense industries. The alloy is typically supplied in T8 temper to maximize its strength characteristics. **2. International Standards** 2040 Aluminum alloy is recognized under several major international standards systems: * **UNS:** UNS A92040 * **ASTM:** ASTM B247 (Standard Specification for Aluminum and Aluminum-Alloy Die Forgings, Hand Forgings, and Rolled Ring Forgings) * **AMS:** AMS 4204 (Aerospace Material Specification) * **AA (Aluminum Association):** AA 2040 *Note: Specific product forms may conform to additional national and international standards as required by application specifications.* **3. Chemical Composition (Weight %)** The composition conforms to the limits set by the Aluminum Association (AA). | Element | Content (%) | | :--- | :--- | | **Aluminum (Al)** | Balance | | **Copper (Cu)** | 4.5 - 5.5 | | **Magnesium (Mg)** | 0.10 - 0.40 | | **Manganese (Mn)** | 0.10 - 0.40 | | **Silver (Ag)** | 0.05 - 0.30 | | **Titanium (Ti)** | 0.02 - 0.15 | | **Zirconium (Zr)** | 0.05 - 0.25 | | **Iron (Fe)** | ≤ 0.20 | | **Silicon (Si)** | ≤ 0.15 | | **Zinc (Zn)** | ≤ 0.10 | | **Other Elements** | ≤ 0.05 each | | **Total Other Elements** | ≤ 0.15 | **4. Physical Properties** | Property | Value / Description | | :--- | :--- | | **Density** | 2.79 - 2.82 g/cm³ (0.101 - 0.102 lb/in³) | | **Melting Range** | ~ 525 - 640 °C (975 - 1185 °F) | | **Electrical Conductivity** | Approximately 34-38% IACS | | **Thermal Conductivity** | ~ 115 - 130 W/m·K | | **Coefficient of Thermal Expansion** | ~ 22.5 - 23.2 × 10⁻⁶/°C (20-100°C) | **5. Mechanical Properties (Typical Values - T8 Temper)** *Properties may vary depending on product form and specific heat treatment conditions.* | Property | Typical Value Range | | :--- | :--- | | **Tensile Strength (Ultimate)** | 510 - 570 MPa (74 - 83 ksi) | | **Tensile Yield Strength (0.2% Offset)** | 450 - 510 MPa (65 - 74 ksi) | | **Elongation at Break** | 8 - 12% | | **Modulus of Elasticity** | 72.0 - 73.5 GPa (10,450 - 10,650 ksi) | | **Compressive Yield Strength** | 460 - 520 MPa (67 - 75 ksi) | | **Shear Strength** | 290 - 330 MPa (42 - 48 ksi) | | **Fatigue Endurance Limit** | ~ 140 - 160 MPa (20 - 23 ksi) | **6. Key Characteristics & Advantages** * **High Strength-to-Weight Ratio:** Excellent mechanical properties combined with low density. * **Elevated Temperature Performance:** Maintains strength at temperatures up to 150°C (300°F). * **Good Damage Tolerance:** Balanced combination of strength and fracture toughness. * **Excellent Fatigue Resistance:** Superior performance under cyclic loading conditions. * **Optimized for Forgings:** Particularly suitable for closed-die forgings requiring high structural integrity. **7. Product Applications** 2040 Aluminum Alloy is primarily used in high-stress aerospace and defense applications: * **Aerospace:** Primary aircraft structures, wing spars, bulkheads, and landing gear components. * **Defense:** Missile structures, armored vehicle components, and military aircraft parts. * **High-Performance Automotive:** Racing components and high-stress structural parts. * **Specialized Machinery:** Critical components requiring high strength-to-weight ratio. **8. Availability** 2040 is typically supplied as: * Die Forgings and Hand Forgings * Rolled Ring Forgings * Forging Stock --- **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 1569 gallon liquid totes Special package is available on request.