Alclad 2024-T62 Aluminum alloy,Aluminum 2024-T62 alloy,E FORU

### **Alclad 2024-T62 Aluminum Alloy Product Introduction** **Overview** Alclad 2024-T62 is a high-strength aluminum-copper alloy that combines the enhanced mechanical properties of artificially aged 2024 aluminum with the superior corrosion protection of metallurgically bonded pure aluminum cladding. The T62 temper designation indicates the material has been solution heat-treated and then artificially aged, providing improved strength and stability compared to naturally aged tempers. This combination makes it particularly suitable for applications requiring consistent mechanical properties and excellent environmental durability. --- #### **1. Chemical Composition** **Core Material: 2024 Alloy** | 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 | | **Other Elements** | ≤ 0.15 total | **Cladding Material** - **Alloy:** 1230, 1050, or 1060 series aluminum - **Purity:** ≥99.0% aluminum content - **Coating Thickness:** Typically 1.5-5% per side of total thickness - **Protection Method:** Sacrificial cathodic protection --- #### **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 (at 25°C) | | **Coefficient of Thermal Expansion** | 23.2 × 10⁻⁶/°C (20-100°C) | | **Modulus of Elasticity** | 73.1 GPa (10,600 ksi) | --- #### **3. Mechanical Properties** **Typical Mechanical Properties:** | Property | Value | |----------|-------| | **Tensile Strength** | 440-480 MPa (64-70 ksi) | | **Yield Strength (0.2% Offset)** | 290-330 MPa (42-48 ksi) | | **Elongation in 2 inches** | 8-12% | | **Shear Strength** | 270-290 MPa (39-42 ksi) | | **Fatigue Strength** | 138 MPa (20 ksi) | | **Brinell Hardness** | 120-130 HB | | **Fracture Toughness** | 22-28 MPa·√m | *Note: Artificial aging provides more consistent properties and improved stress-corrosion resistance compared to naturally aged tempers.* --- #### **4. International Standards** | Standard System | Designation | Product Form | |-----------------|-------------|--------------| | **ASTM** | ASTM B209 | Sheet & Plate | | **AMS** | AMS 4037 | Sheet | | **MIL** | MIL-DTL-6075 | Sheet | | **EN** | EN AW-2024A [T62] | Sheet/Plate | | **ISO** | ISO 6361 | Wrought Products | --- #### **5. Product Applications** **Aerospace Applications:** - Aircraft structural components - Wing skins and spars - Fuselage frames and stringers - Aircraft landing gear components - Aerospace fasteners and fittings **Defense Applications:** - Military aircraft structures - Missile components - Armored vehicle panels - Military ground support equipment **Industrial Applications:** - High-stress structural components - Machinery parts requiring strength and stability - Pressure vessels and containers - Transportation equipment components --- #### **6. Key Advantages & Considerations** **Advantages:** - ✅ **Enhanced Strength Properties:** Higher strength than naturally aged tempers - ✅ **Excellent Corrosion Resistance:** Alclad layer provides sacrificial protection - ✅ **Improved Stability:** Artificially aged for consistent, stable properties - ✅ **Good Stress-Corrosion Resistance:** Better SCC resistance than T3/T4 tempers - ✅ **Predictable Performance:** Controlled aging process ensures reliability - ✅ **Excellent Fatigue Strength:** Suitable for cyclic loading applications **Considerations:** - ⚠️ **Reduced Formability:** Lower ductility compared to T3/T4 tempers - ⚠️ **Limited Weldability:** Poor welding characteristics - ⚠️ **Higher Cost:** Artificial aging adds to manufacturing cost - ⚠️ **Cladding Thickness Effect:** Reduced effective core thickness - ⚠️ **Processing Limitations:** Limited formability after final aging - ⚠️ **Temperature Sensitivity:** Properties may degrade at elevated temperatures --- **Heat Treatment Characteristics** The T62 temper involves: - Solution heat treatment at 490-500°C (915-932°F) - Rapid quenching to room temperature - Artificial aging at 180-195°C (355-383°F) for 8-12 hours - Controlled cooling to room temperature **Performance Benefits:** - Consistent mechanical properties throughout the material - Improved resistance to stress-corrosion cracking - Better dimensional stability for precision applications - Enhanced strength retention at moderate temperatures **Conclusion** Alclad 2024-T62 Aluminum Alloy represents an optimized combination of mechanical performance and environmental durability for demanding aerospace and industrial applications. The artificial aging process (T62) provides superior strength characteristics and improved stress-corrosion resistance compared to naturally aged tempers, while the Alclad coating ensures long-term protection against corrosive environments. Although it offers less formability than solution heat-treated conditions, its stable properties and enhanced performance make it an excellent choice for applications where reliability, consistency, and durability are paramount. The material's proven performance in critical aerospace structures demonstrates its value as a high-performance engineering material.

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 1537 gallon liquid totes Special package is available on request.