3002 Aluminum alloy,Aluminum 3002 alloy,E FORU

### **Aluminum Alloy 3002 Product Introduction** **Aluminum Alloy 3002** is a non-heat-treatable aluminum-manganese (Al-Mn) alloy known for its **excellent corrosion resistance** and **superior formability**. As a variant of the common 3003 alloy with a slightly higher copper content, it offers a good balance of strength, workability, and surface finish. It is widely used in applications requiring deep drawing, spinning, and other forming processes, making it a versatile and economical choice for a variety of general sheet metal work, cookware, and containers. --- #### **1. Chemical Composition** The composition of AA3002 is designed to provide a combination of moderate strength and good formability. Key elements are (typical values in weight %): | Element | Content (%) | | :--- | :--- | | **Manganese (Mn)** | 1.0 - 1.5 | | **Copper (Cu)** | 0.5 - 1.0 | *(Higher than in 3003)* | | **Iron (Fe)** | 0.7 max | | **Silicon (Si)** | 0.6 max | | **Zinc (Zn)** | 0.20 max | | **Other Impurities** | each 0.05 max, total 0.15 max | | **Aluminum (Al)** | Balance | * **Manganese (Mn)**: The primary alloying element, which strengthens the alloy through solid solution strengthening and controls the grain structure. * **Copper (Cu)**: Added in a slightly higher proportion than in 3003 to provide a modest increase in strength. --- #### **2. Physical Properties** | Property | Value / Description | | :--- | :--- | | **Density** | Approximately 2.73 g/cm³ | | **Melting Range** | ~ 640 - 655 °C | | **Modulus of Elasticity** | Approximately 69 GPa (10.0 x 10⁶ psi) | | **Thermal Conductivity** | ~ 150 - 170 W/m·K (at 25°C) | | **Electrical Conductivity** | ~ 40 - 45% IACS | | **Coefficient of Thermal Expansion** | ~ 23.2 x 10⁻⁶ /K | --- #### **3. Mechanical Properties** Being a non-heat-treatable alloy, its strength is derived from strain hardening (cold working). Typical properties for the H14 temper (half-hard) are: * **Tensile Ultimate Strength:** 150 - 200 MPa (22 - 29 ksi) * **Tensile Yield Strength (0.2% Offset):** 140 - 180 MPa (20 - 26 ksi) * **Elongation:** 3 - 8% (in H14 temper, higher in annealed -O temper) * The annealed (O temper) condition is very soft and ductile, ideal for severe forming operations. --- #### **4. International Standards** Aluminum Alloy 3002 is recognized in several international standards for aluminum sheet and plate. * **ASTM:** **ASTM B209** (Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate) * **ISO:** **ISO 6361-2** (Wrought Aluminum and Aluminum-Alloy Sheets, Strips and Plates) * **EN (European Norm):** **EN 573-3** (Chemical composition) and **EN 485-2** (Mechanical properties) * **JIS (Japanese Industrial Standard):** **JIS H 4000** (A3002) --- #### **5. Product Applications** AA3002's combination of formability, corrosion resistance, and moderate strength makes it suitable for a wide range of applications. * **Cookware and Utensils:** Pots, pans, baking sheets, and kitchen utensils where formability and a good surface for anodizing or coating are important. * **Containers and Packaging:** Can bodies, lids, and other food containers. * **General Sheet Metal Work:** Ductwork, decorative trim, and parts requiring deep drawing or spinning. * **Heat Exchangers:** Used in some lower-pressure or non-critical heat exchange applications. --- #### **6. Key Advantages** * **Excellent Formability:** Can be deep drawn, spun, and bent into complex shapes, especially in the annealed (O) condition. * **Good Corrosion Resistance:** Performs well in a variety of environments, including atmospheric and aqueous exposures. * **Nice Surface Finish:** Readily accepts and retains various surface finishes, including anodizing, painting, and polishing. * **Moderate Strength:** Offers a good balance between ductility and strength, particularly in strain-hardened tempers. * **Economical:** A cost-effective solution for many general-purpose applications. **Conclusion** Aluminum Alloy 3002 is a versatile and widely used workhorse alloy from the 3XXX series. Its slightly higher copper content compared to 3003 gives it a marginal strength advantage while retaining the excellent forming characteristics and corrosion resistance that make this alloy family so popular. It is an ideal material for manufacturers seeking a reliable, formable, and cost-efficient aluminum alloy for a multitude of sheet metal applications.

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 1645 gallon liquid totes Special package is available on request.