2024-T3 Aluminum alloy,Aluminum 2024-T3 alloy,E FORU

### **Aluminum 2024-T3 Alloy Product Introduction** **Overview** Aluminum 2024-T3 is a high-strength aluminum-copper alloy in the solution heat-treated, cold-worked, and naturally aged condition. As one of the most widely used aluminum alloys in aerospace applications, it offers an exceptional combination of high strength-to-weight ratio, good fatigue resistance, and excellent damage tolerance. The T3 temper provides immediate high strength after solution heat treatment through natural aging at room temperature, making it ready for service without artificial aging. --- #### **1. Chemical Composition** | Element | Content (%) | |---------|-------------| | **Aluminum (Al)** | Balance | | **Copper (Cu)** | 3.8 - 4.9 | | **Magnesium (Mg)** | 1.2 - 1.8 | | **Manganese (Mn)** | 0.30 - 0.9 | | **Iron (Fe)** | ≤ 0.20 | | **Silicon (Si)** | ≤ 0.15 | | **Zinc (Zn)** | ≤ 0.10 | | **Chromium (Cr)** | ≤ 0.10 | | **Other Elements** | ≤ 0.15 total | --- #### **2. Physical Properties** | Property | Value / Description | |----------|---------------------| | **Density** | 2.78 g/cm³ (0.100 lb/in³) | | **Melting Range** | 500°C - 638°C (932°F - 1180°F) | | **Electrical Conductivity** | 30-35% IACS | | **Thermal Conductivity** | 121 W/m·K | | **Coefficient of Thermal Expansion** | 23.2 × 10⁻⁶/°C (20-100°C) | | **Modulus of Elasticity** | 73.1 GPa (10,600 ksi) | | **Poisson's Ratio** | 0.33 | --- #### **3. Mechanical Properties** **Typical Mechanical Properties (Sheet):** | Property | Value | |----------|-------| | **Tensile Strength** | 420-470 MPa (61-68 ksi) | | **Yield Strength (0.2% Offset)** | 275-325 MPa (40-47 ksi) | | **Elongation in 2 inches** | 10-18% | | **Shear Strength** | 255-275 MPa (37-40 ksi) | | **Fatigue Strength** | 138 MPa (20 ksi) | | **Brinell Hardness** | 120-130 HB | | **Fracture Toughness** | 23-29 MPa√m | --- #### **4. International Standards** | Standard System | Designation | Product Form | |-----------------|-------------|--------------| | **ASTM** | ASTM B209 | Sheet & Plate | | **AMS** | AMS 4037 | Sheet | | **AMS** | AMS 4080 | Plate | | **MIL** | MIL-DTL-6075 | Sheet | | **EN** | EN AW-2024A [T3] | Sheet/Plate | | **ISO** | ISO 6361 | Wrought Products | --- #### **5. Product Applications** **Aerospace Applications:** - Aircraft fuselage skins and panels - Wing and tail surfaces - Structural members and bulkheads - Aircraft rivets and fasteners - Space vehicle components **Transportation Industry:** - Truck wheels and body panels - Racing car chassis components - Military vehicle structures - Marine vessel components **Industrial Applications:** - High-strength structural components - Machinery parts requiring light weight - Pressure vessels - Architectural applications requiring strength --- #### **6. Key Advantages & Considerations** **Advantages:** - ✅ **High Strength-to-Weight Ratio:** Excellent specific strength - ✅ **Good Fatigue Resistance:** Performs well under cyclic loading - ✅ **Excellent Damage Tolerance:** Good fracture toughness - ✅ **Good Machinability:** Machines well in aged condition - ✅ **Immediate Availability:** Ready for use without additional aging - ✅ **Proven Reliability:** Extensive service history in aerospace **Considerations:** - ⚠️ **Poor Corrosion Resistance:** Requires protection in corrosive environments - ⚠️ **Limited Weldability:** Not recommended for fusion welding - ⚠️ **Stress-Corrosion Cracking:** Susceptible in short transverse direction - ⚠️ **Natural Aging:** Properties continue to change slightly over time - ⚠️ **Formability Limitations:** More difficult to form than -O temper --- **Heat Treatment Characteristics** **T3 Temper Process:** 1. Solution heat treatment at 490-500°C (915-932°F) 2. Rapid quenching in water or polymer 3. Cold working (typically 1-5% stretch or compression) 4. Natural aging at room temperature (4-7 days to stable condition) **Aging Characteristics:** - Reaches stable mechanical properties in 4-7 days - Natural aging continues at a decreasing rate - Maximum strength typically achieved within 30 days - Properties remain stable under normal service conditions --- **Corrosion Protection** **Recommended Protection Methods:** - Alclad coating (for sheet products) - Anodizing (chromic or sulfuric acid) - Chemical conversion coating - Paint and primer systems - Regular inspection and maintenance --- **Conclusion** Aluminum 2024-T3 represents one of the most important and widely used high-strength aluminum alloys in the aerospace industry. Its excellent combination of strength, damage tolerance, and fatigue resistance makes it indispensable for aircraft structures and other demanding applications. While requiring appropriate corrosion protection and careful attention to manufacturing limitations, its proven performance history and reliable mechanical properties ensure its continued prominence in weight-critical engineering applications. The T3 temper condition provides immediate high strength without the need for artificial aging, making it particularly valuable for applications requiring both high performance and manufacturing efficiency.

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 1542 gallon liquid totes Special package is available on request.