2009 Aluminum alloy,Aluminum 2009 alloy,E FORU

### **2009 Aluminum Alloy Product Introduction** **1. Overview** 2009 Aluminum Alloy is a heat-treatable aluminum alloy from the 2xxx series, primarily alloyed with copper and silicon. It is designed to offer a good combination of strength, corrosion resistance, and manufacturability. As a precipitation-hardenable alloy, it achieves enhanced mechanical properties through heat treatment while maintaining better corrosion resistance compared to traditional high-copper aluminum alloys. **2. Chemical Composition (Typical, % by Weight)** The composition features controlled copper and silicon content with strategic alloying additions. | Element | Content (%) | |---------|-------------| | **Aluminum (Al)** | Balance | | **Copper (Cu)** | 0.6-1.0 | | **Silicon (Si)** | 0.8-1.2 | | **Magnesium (Mg)** | 0.15-0.35 | | **Iron (Fe)** | ≤0.20 | | **Zinc (Zn)** | ≤0.10 | | **Manganese (Mn)** | 0.10-0.25 | | **Other Elements (Each)** | ≤0.05 | | **Other Elements (Total)** | ≤0.15 | *Note: The balanced copper and silicon content provides good strength characteristics while maintaining improved corrosion resistance.* **3. Physical Properties** | Property | Value | |----------|-------| | **Density** | 2.73 g/cm³ | | **Melting Point** | 645-655°C | | **Electrical Conductivity** | 48% IACS | | **Thermal Conductivity** | 185 W/(m·K) | | **Coefficient of Thermal Expansion** | 23.3 × 10⁻⁶/K (20-100°C) | | **Modulus of Elasticity** | 70.5 GPa | **4. Mechanical Properties (Typical)** Properties demonstrate good response to heat treatment with balanced performance. | Temper | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | |--------|------------------------|----------------------|----------------| | **O (Annealed)** | 160-190 | 80-100 | 18-22 | | **T4 (Solution Heat Treated)** | 280-320 | 150-180 | 16-20 | | **T6 (Peak Aged)** | 330-370 | 280-320 | 10-14 | *Key Characteristics:* * **Good Strength**: Moderate strength-to-weight ratio * **Improved Corrosion Resistance**: Better than conventional 2xxx series alloys * **Excellent Weldability**: Good welding characteristics * **Good Formability**: Suitable for various manufacturing processes **5. Product Applications** 2009 aluminum is used in applications requiring balanced performance and good corrosion resistance. * **Automotive Industry**: Body panels, structural components, and trim parts * **General Engineering**: Machine components and structural parts * **Architectural Applications**: Building components and decorative elements * **Consumer Products**: Appliance components and hardware * **Transportation Systems**: Railway and vehicle components * **Industrial Equipment**: General machinery parts * **Electrical Components**: Enclosures and housing parts **6. International Standards** 2009 aluminum is recognized under major international standardization systems. | Standard System | Designation | |-----------------|-------------| | **ISO** | AlCu1Si1Mg | | **EN (Europe)** | EN AW-2009 | | **ASTM (USA)** | ASTM B211 2009 | | **UNS (USA)** | UNS A92009 | | **JIS (Japan)** | A2009 | | **GB (China)** | 2A09 | --- **Summary** **2009 Aluminum Alloy** is a **versatile aluminum-copper-silicon alloy** that offers a **well-balanced combination of mechanical properties, corrosion resistance, and manufacturing flexibility**. With its controlled copper content (0.6-1.0%) and silicon addition (0.8-1.2%), this alloy provides good strength characteristics through precipitation hardening while maintaining significantly better corrosion resistance than traditional high-copper 2xxx series alloys. The combination of moderate strength, excellent weldability, good formability, and improved environmental durability makes 2009 aluminum particularly suitable for automotive applications, general engineering components, architectural elements, and consumer products. Its balanced performance characteristics and manufacturing versatility establish it as a reliable choice for applications requiring consistent performance with good corrosion resistance and production 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 1504 gallon liquid totes Special package is available on request.