3207A Aluminum alloy,Aluminum 3207A alloy,E FORU

### **Product Introduction: Aluminum 3207A Alloy** **Overview** Aluminum 3207A is a non-heat-treatable aluminum-manganese alloy commonly used in packaging and general sheet metal applications. It belongs to the 3xxx series of aluminum alloys, which are known for their good corrosion resistance, moderate strength, and excellent formability. The "A" suffix typically indicates a specific variant or a controlled composition version of the base 3207 alloy, often optimized for improved consistency in mechanical properties or surface quality. --- ### **1. Chemical Composition (Typical Weight %)** The composition is designed to balance formability and strength while maintaining good corrosion resistance. | Element | Content (%) | |---------|-------------| | **Aluminum (Al)** | Balance | | **Manganese (Mn)** | 0.8 - 1.3 | | **Iron (Fe)** | ≤ 0.8 | | **Silicon (Si)** | ≤ 0.6 | | **Copper (Cu)** | ≤ 0.15 | | **Zinc (Zn)** | ≤ 0.10 | | **Magnesium (Mg)** | ≤ 0.10 | | **Others (Each)** | ≤ 0.05 | | **Others (Total)** | ≤ 0.15 | --- ### **2. Physical Properties** | Property | Value / Description | |----------|---------------------| | **Density** | 2.73 g/cm³ | | **Melting Range** | ~ 645 - 655 °C | | **Electrical Conductivity** | ~ 40-45% IACS | | **Thermal Conductivity** | ~ 160 - 180 W/m·K | | **Coefficient of Thermal Expansion** | ~ 23.4 × 10⁻⁶/°C | | **Modulus of Elasticity** | ~ 70 GPa | --- ### **3. Mechanical Properties (Typical Values)** Properties vary with temper. Common tempers include O (annealed) and H1x (strain-hardened). | Temper | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | |--------|------------------------|----------------------|----------------| | **O** | 115 - 145 | 55 - 85 | 15 - 25 | | **H14** | 150 - 185 | 130 - 165 | 4 - 8 | | **H16** | 175 - 210 | 155 - 190 | 2 - 5 | --- ### **4. International Standards** Aluminum 3207A is recognized under the following standards: | Standard Body | Designation | |---------------|-------------| | **Aluminum Association (AA)** | AA 3207A | | **European Standard (EN)** | EN AW-3207A | | **ISO** | AlMn1 (ISO 209) | | **UNS** | A93207 | --- ### **5. Product Applications** 3207A is widely used in: - **Packaging**: Can bodies, container lids, foil stock, and food packaging. - **General Sheet Metal Work**: Appliance panels, decorative trim, and light structural components. - **Construction**: Roofing sheets, wall cladding, and gutters. - **Consumer Goods**: Utensils, nameplates, and heat exchangers. --- ### **6. Key Characteristics & Advantages** - **Good Corrosion Resistance**: Performs well in moist and industrial environments. - **Excellent Formability**: Suitable for deep drawing, bending, and stamping. - **Moderate Strength**: Strengthened via strain hardening (H tempers). - **Weldability**: Can be welded using TIG, MIG, and resistance welding. - **Brazeable**: Compatible with common brazing techniques. - **Surface Quality**: Accepts anodizing, painting, and other finishes effectively. --- ### **7. Processing Notes** - **Annealing**: Heated to ~345°C for stress relief and softening. - **Strain Hardening**: Cold working increases strength but reduces ductility. - **Joining**: Welding and brazing are straightforward but may reduce strength in HAZ. **Disclaimer**: The information provided is typical and for reference only. Actual properties may vary based on processing, temper, and supplier. For critical applications, verify specifications with certified material test reports.

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 1721 gallon liquid totes Special package is available on request.