2319 Aluminum alloy,Aluminum 2319 alloy,E FORU

### **Product Datasheet: 2319 Aluminum Alloy** --- #### **1. Overview** 2319 Aluminum Alloy is a high-purity aluminum-copper alloy primarily used as welding filler wire and electrode material for joining 2xxx series aluminum alloys, particularly 2219. This alloy is specifically designed to provide excellent weldability, high joint strength, and good color match after anodizing. The chemical composition of 2319 is carefully controlled to ensure superior welding performance and mechanical properties in welded structures, making it the preferred choice for critical aerospace and cryogenic applications. --- #### **2. International Standards** - **UNS**: UNS A92319 - **ASTM**: ASTM B211 (Standard Specification for Aluminum and Aluminum-Alloy Bar, Rod, and Wire) - **AWS**: AWS A5.10 (Aluminum Alloy Filler Metals) - **AA (Aluminum Association)**: AA 2319 - **ISO**: ISO 18273 (Welding consumables - Wire electrodes, wires and rods for welding of aluminum and aluminum alloys) --- #### **3. Chemical Composition (Weight %)** | Element | Content (%) | |---------|-------------| | **Aluminum (Al)** | Balance | | **Copper (Cu)** | 5.8–6.8 | | **Manganese (Mn)** | 0.20–0.40 | | **Vanadium (V)** | 0.05–0.15 | | **Zirconium (Zr)** | 0.10–0.25 | | **Titanium (Ti)** | 0.10–0.20 | | **Iron (Fe)** | ≤ 0.30 | | **Silicon (Si)** | ≤ 0.20 | | **Zinc (Zn)** | ≤ 0.10 | | **Other Elements** | ≤ 0.05 each | | **Total Others** | ≤ 0.15 | --- #### **4. Physical Properties** | Property | Value | |----------|-------| | **Density** | 2.77–2.79 g/cm³ (0.100–0.101 lb/in³) | | **Melting Range** | ~540–650°C (1000–1200°F) | | **Electrical Conductivity** | ~38–42 % IACS | | **Thermal Conductivity** | 125–145 W/m·K | | **Coefficient of Thermal Expansion** | 22.3–23.3 × 10⁻⁶/°C (20–100°C) | | **Modulus of Elasticity** | 72.0–74.0 GPa (10,450–10,750 ksi) | --- #### **5. Mechanical Properties (As-Welded Condition)** | Property | Typical Value | |----------|---------------| | **Tensile Strength (Ultimate)** | 290–340 MPa (42–49 ksi) | | **Tensile Yield Strength (0.2% Offset)** | 170–220 MPa (25–32 ksi) | | **Elongation at Break** | 8–14% | | **Shear Strength** | 190–230 MPa (28–33 ksi) | | **Hardness (Vickers)** | 80–100 HV | | **Weld Metal Strength** | 280–330 MPa (41–48 ksi) | | **Joint Efficiency** | 85–95% of base metal | --- #### **6. Key Characteristics & Advantages** - **Excellent Weldability**: Specifically formulated for high-quality welding - **Superior Color Match**: Excellent anodizing compatibility with 2219 base metal - **High Joint Strength**: Provides strong, reliable welded connections - **Cryogenic Performance**: Maintains properties at low temperatures - **Low Porosity**: Minimizes weld defects and improves integrity - **Good Flow Characteristics**: Excellent arc stability and deposition - **Aerospace Qualified**: Meets stringent aerospace welding standards --- #### **7. Product Applications** - **Aerospace Welding**: Primary filler metal for 2219 structures - **Space Launch Vehicles**: Welding of fuel tanks and cryogenic containers - **Missile Systems**: Joining of rocket motor cases and structures - **Aircraft Structures**: Welding of fuselage and wing components - **Cryogenic Equipment**: Welding of liquid gas storage systems - **Pressure Vessels**: Joining of high-pressure containers --- #### **8. Available Forms** - Welding Wire (1.0–4.0 mm diameter) - Bare Electrodes - Spooled Wire - Straight Lengths - Custom Packaging --- #### **9. Welding and Processing** - **Welding Processes**: Suitable for GTAW (TIG), GMAW (MIG), and PAW - **Shielding Gas**: Argon or argon-helium mixtures recommended - **Preheat Temperature**: 65–120°C (150–250°F) for thick sections - **Post-Weld Heat Treatment**: Can be aged to match base metal properties - **Storage Conditions**: Dry storage to prevent moisture absorption - **Quality Control**: Certified to aerospace welding standards - **Certification**: Full traceability and lot certification available --- **Disclaimer**: The information presented is typical and for reference only. Actual welding performance may vary with specific procedures and conditions. For critical welding applications, contact our technical service team for welding procedure specifications and technical support.

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 1633 gallon liquid totes Special package is available on request.