5050A Aluminum alloy,Aluminum 5050A alloy,E FORU

### **Product Introduction: 5050A Aluminum Alloy** **5050A Aluminum Alloy** is a non-heat-treatable aluminum-magnesium alloy known for its **good corrosion resistance, excellent formability, and moderate strength**. As a member of the 5xxx series, it is strengthened by magnesium in solid solution and is available in various strain-hardened (H) tempers. It is widely used in applications requiring a reliable combination of mechanical properties, surface quality, and workability, such as automotive trim, architectural panels, and general sheet metal work. --- ### **1. Chemical Composition (Weight %)** The chemical composition of 5050A is carefully controlled to ensure consistent performance. The "A" suffix often denotes a variant with tighter impurity control. | Element | Content (%) | Role in the Alloy | | :--- | :--- | :--- | | **Aluminum (Al)** | Balance | Base Element | | **Magnesium (Mg)** | 1.1 - 1.8 | Primary strengthening element; provides solid solution strengthening and improves strain-hardening capability. | | **Iron (Fe)** | ≤ 0.40 | Impurity; controlled to minimize its impact on formability. | | **Silicon (Si)** | ≤ 0.30 | Impurity; controlled to prevent the formation of brittle intermetallic phases. | | **Manganese (Mn)** | ≤ 0.10 | Impurity; kept low in this specific alloy variant. | | **Copper (Cu)** | ≤ 0.05 | **Very low.** Crucial for maintaining excellent corrosion resistance. | | **Chromium (Cr)** | ≤ 0.05 | Impurity; kept low. | | **Zinc (Zn)** | ≤ 0.10 | Impurity; kept low to maintain corrosion resistance. | | **Titanium (Ti)** | ≤ 0.05 | May be added in trace amounts for grain refinement. | | **Others (each)** | ≤ 0.05 | - | | **Others (total)** | ≤ 0.15 | - | --- ### **2. Physical Properties** | Property | Value / Description | | :--- | :--- | | **Density** | ≈ 2.70 g/cm³ | | **Melting Range** | ≈ 645 - 655 °C | | **Electrical Conductivity** | ≈ 40 - 45 % IACS (International Annealed Copper Standard) | | **Thermal Conductivity** | ≈ 140 - 150 W/m·K | | **Coefficient of Thermal Expansion** | ≈ 23.5 x 10⁻⁶ /K (at 20-100°C) | | **Modulus of Elasticity** | ≈ 70 GPa | --- ### **3. Mechanical Properties (Typical for Sheet/Strip)** Properties vary significantly with temper. | Temper | Tensile Strength (MPa) | Yield Strength (0.2% Offset, MPa) | Elongation (%) | | :--- | :--- | :--- | :--- | | **O (Annealed)** | 145 - 185 | ≥ 55 | ≥ 20 | | **H24 / H26** | 190 - 230 | 160 - 200 | 8 - 14 | | **H18 / H19** | 220 - 260 | 200 - 240 | 4 - 7 | *Note: Values are approximate and dependent on product form and processing history.* --- ### **4. Key Characteristics & Advantages** * **Excellent Corrosion Resistance:** Demonstrates very good resistance to atmospheric corrosion and saltwater, outperforming many other aluminum alloys. The very low copper content is key to this property. * **Superior Formability:** Offers excellent ductility and deep-drawing capabilities, especially in the annealed (O) temper. * **Good Surface Finish:** Capable of achieving a high-quality, uniform surface, making it suitable for anodizing and painting. * **Good Weldability and Brazeability:** Can be easily joined using common welding (MIG, TIG) and brazing techniques. * **Moderate Strength:** Provides a good balance between strength and formability for numerous applications. --- ### **5. Product Applications** 5050A Aluminum Alloy is specified across multiple industries: * **Architecture & Building:** * Architectural panels and facades * Roofing and siding sheets * Decorative trim and moldings * **Automotive Industry:** * Interior and exterior trim components * Ornamental parts * **Consumer Goods:** * Appliance panels and parts * Kitchen utensils and hardware * **General Engineering:** * Nameplates, labels, and decorative parts * Various sheet metal fabrications --- ### **6. International Standards** 5050A is recognized under major international standardization systems. The "A" designation is particularly common in European standards. | Standard Body | Alloy Designation | Notes | | :--- | :--- | :--- | | **EN (European Norm)** | **EN AW-5050A** | The primary standard designation for this alloy variant. | | **ISO** | **AlMg1.5** | ISO 209 designation based on composition. | | **AA (Aluminum Association)** | **5050** | The base alloy designation; 5050A typically conforms to this with tighter controls. | | **JIS (Japanese Standard)** | **A5050** | Japanese Industrial Standard equivalent. |

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 1799 gallon liquid totes Special package is available on request.