Alclad 2014-T4, T451 Aluminum alloy,Aluminum 2014-T4, T451 alloy,E FORU

### **Alclad 2014-T4, T451 Aluminum Alloy Product Introduction** **1. Overview** Alclad 2014-T4 and T451 are specialized versions of the 2014 aluminum alloy in solution heat-treated and naturally aged tempers, featuring a protective aluminum coating. The "Alclad" construction combines a high-strength 2014 aluminum core metallurgically bonded with a thin layer of high-purity aluminum. The T4 temper indicates solution heat treatment followed by natural aging, while T451 specifically denotes stress-relieving by stretching after solution heat treatment. These tempers offer an excellent balance of strength, formability, and corrosion resistance for structural applications. **2. Chemical Composition (Typical, % by Weight)** | Element | Core (2014) | Cladding | |---------|-------------|----------| | **Aluminum (Al)** | Balance | ≥99.0% | | **Copper (Cu)** | 3.9-5.0 | ≤0.10 | | **Silicon (Si)** | 0.50-1.2 | ≤0.20 | | **Magnesium (Mg)** | 0.20-0.8 | ≤0.10 | | **Manganese (Mn)** | 0.40-1.2 | ≤0.10 | | **Iron (Fe)** | ≤0.20 | ≤0.40 | | **Zinc (Zn)** | ≤0.10 | ≤0.10 | *Note: The cladding provides galvanic protection while the core delivers age-hardening capability.* **3. Physical Properties** | Property | Value | |----------|-------| | **Density** | 2.80 g/cm³ | | **Melting Point** | 510-638°C | | **Electrical Conductivity** | 47% IACS | | **Thermal Conductivity** | 155 W/(m·K) | | **Coefficient of Thermal Expansion** | 23.0 × 10⁻⁶/K (20-100°C) | | **Modulus of Elasticity** | 73 GPa | **4. Mechanical Properties (Typical)** | Temper | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | |--------|------------------------|----------------------|----------------| | **T4** | 380-420 | 230-270 | 15-19 | | **T451** | 385-425 | 235-275 | 15-19 | *Key Characteristics:* * **High Strength**: Good strength-to-weight ratio * **Excellent Corrosion Resistance**: Sacrificial cladding protection * **Good Formability**: Suitable for forming operations * **Stress Relieved (T451)**: Improved dimensional stability * **Natural Aging**: Continues to age at room temperature **5. Product Applications** * **Aircraft Structures**: Wing skins, fuselage panels, structural members * **Aerospace Components**: Space vehicle structures, satellite components * **Marine Structures**: Boat hulls, marine superstructures * **Transportation**: High-speed train components, vehicle structures * **Military Equipment**: Armored vehicles, defense structures * **Architectural**: Structural elements in corrosive environments * **Pressure Vessels**: Tanks and containers requiring corrosion protection **6. International Standards** | Standard System | Designation | |-----------------|-------------| | **EN (Europe)** | EN AW-2014A Alclad T4/T451 | | **ISO** | AlCu4SiMg Alclad T4/T451 | | **ASTM (USA)** | ASTM B209 2014 Alclad T4/T451 | | **UNS (USA)** | UNS A92014 Alclad T4/T451 | | **JIS (Japan)** | A2014 Alclad T4/T451 | | **GB (China)** | 2A14 Alclad T4/T451 | --- **Summary** **Alclad 2014-T4 and T451 Aluminum Alloys** provide an **optimal combination of medium-high strength, good formability, and superior corrosion resistance**. The T4 temper offers solution heat treatment with natural aging, providing good mechanical properties suitable for many structural applications. The T451 temper adds stress-relieving by stretching, which improves dimensional stability for precision components. The Alclad construction ensures excellent corrosion resistance through sacrificial protection, making these materials ideal for aerospace, marine, and other applications exposed to corrosive environments. These tempers are particularly valuable where components require additional forming after heat treatment or where dimensional stability is critical during machining and assembly operations.

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 1516 gallon liquid totes Special package is available on request.