5042-H19 Aluminum alloy,Aluminum 5042-H19 alloy,E FORU

### **Product Introduction: 5042-H19 Aluminum Alloy** **5042-H19 Aluminum Alloy** is a non-heat-treatable aluminum-magnesium alloy supplied in the **H19 temper**. This temper represents a strain-hardened condition beyond the "H18" level, achieving the highest practical strength obtainable through cold working alone, with only a minimal allowance for elongation. This combination of very high strength and lightweight properties makes 5042-H19 an excellent choice for demanding structural applications, particularly as a **can end stock** for beverage containers. --- ### **1. Chemical Composition (Weight %)** The chemical composition is tightly controlled to ensure consistent mechanical properties and formability. | Element | Content (%) | Role in the Alloy | | :--- | :--- | :--- | | **Aluminum (Al)** | Balance | Base Element | | **Magnesium (Mg)** | 3.0 - 4.0 | Primary strengthening element; provides high strength via solid solution hardening. | | **Manganese (Mn)** | 0.20 - 0.50 | Enhances strength and improves work hardening response. | | **Chromium (Cr)** | ≤ 0.10 | Impurity; controlled for consistency. | | **Copper (Cu)** | ≤ 0.15 | Impurity; kept low to maintain good corrosion resistance. | | **Iron (Fe)** | ≤ 0.35 | Impurity; controlled to prevent negative impact on formability and surface finish. | | **Silicon (Si)** | ≤ 0.20 | Impurity; controlled to prevent the formation of brittle phases. | | **Zinc (Zn)** | ≤ 0.25 | Impurity; kept low. | | **Others (each)** | ≤ 0.05 | - | | **Others (total)** | ≤ 0.15 | - | --- ### **2. Physical Properties** | Property | Value / Description | | :--- | :--- | | **Density** | ≈ 2.69 g/cm³ | | **Melting Range** | ≈ 590 - 640 °C | | **Electrical Conductivity** | ≈ 30-35 % IACS (International Annealed Copper Standard) | | **Thermal Conductivity** | ≈ 120 - 130 W/m·K | | **Coefficient of Thermal Expansion** | ≈ 23.8 x 10⁻⁶ /K (at 20-100°C) | | **Modulus of Elasticity** | ≈ 70 GPa | --- ### **3. Mechanical Properties (Typical for H19 Temper)** The H19 temper is defined by its very high strength and limited ductility. | Property | Typical Value | | :--- | :--- | | **Tensile Strength** | 380 - 420 MPa | | **Yield Strength (0.2% Offset)** | 360 - 400 MPa | | **Elongation** | 2 - 5 % | --- ### **4. Key Characteristics & Advantages** * **Very High Strength:** The H19 temper provides one of the highest strength levels available in non-heat-treatable aluminum alloys, enabling the design of thinner, lighter components without sacrificing performance. * **Excellent Strength-to-Weight Ratio:** Ideal for weight-sensitive applications. * **Good Formability in Specific Applications:** While its elongation is low, it possesses the specific, controlled formability required for the severe stamping and riveting operations involved in making easy-open can ends. * **Good Corrosion Resistance:** Offers adequate resistance for its intended applications, such as packaging, where it is often coated or lacquered for additional protection. * **Fatigue Resistance:** Exhibits good resistance to cyclic loading, which is important for dynamic components. --- ### **5. Product Applications** The primary application for 5042-H19 is highly specialized, but its properties make it suitable for other demanding fields. * **Packaging (Primary Application):** * **Can End Stock (Easy-Open Ends):** The dominant use for this alloy-temper combination. It is specifically engineered to be stamped into the rivet and score area of beverage can ends, requiring a precise balance of high strength (to withstand internal pressure) and controlled fracture mechanics (for easy opening). * **Automotive & Transportation:** * Structural components requiring high strength and light weight. * Reinforcement brackets. * **Industrial Applications:** * Other deeply drawn or formed parts that require high strength in the final product. --- ### **6. International Standards** 5042-H19 is recognized under several major international standardization systems, often specified for canstock. | Standard Body | Alloy Designation | Common Product Standards | | :--- | :--- | :--- | | **AA (Aluminum Association)** | **5042-H19** | AA Teal Sheets (Can Stock) | | **EN (European Norm)** | **EN AW-5042-H19** | EN 573-3, EN 485 | | **JIS (Japanese Standard)** | **A5042-H19** | JIS H 4000 |

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 1796 gallon liquid totes Special package is available on request.