2219-T6 Aluminum alloy,Aluminum 2219-T6 alloy,E FORU

### **Product Datasheet: 2219-T6 Aluminum Alloy** --- #### **1. Overview** 2219-T6 Aluminum Alloy is a high-strength aluminum-copper alloy supplied in the T6 temper (solution heat-treated and artificially aged). This temper condition provides an excellent combination of high strength, good toughness, and superior stress corrosion resistance. The artificial aging process optimizes the precipitation hardening characteristics, making this alloy particularly suitable for structural applications requiring high strength-to-weight ratio and reliable performance in demanding environments, including aerospace and cryogenic applications. --- #### **2. International Standards** - **UNS**: UNS A92219 - **ASTM**: ASTM B209 (Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate) - **AMS**: AMS 4037 (Aerospace Material Specification) - **AA (Aluminum Association)**: AA 2219 - **ISO**: ISO 6361-2 (Wrought Aluminum and Aluminum Alloy Sheet, Strip and Plate) --- #### **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 | | **Iron (Fe)** | ≤ 0.30 | | **Silicon (Si)** | ≤ 0.20 | | **Zinc (Zn)** | ≤ 0.10 | | **Titanium (Ti)** | 0.02–0.10 | | **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** | ~30–34 % IACS | | **Thermal Conductivity** | 105–125 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 (T6 Temper Condition)** | Property | Typical Value | |----------|---------------| | **Tensile Strength (Ultimate)** | 400–450 MPa (58–65 ksi) | | **Tensile Yield Strength (0.2% Offset)** | 270–320 MPa (39–46 ksi) | | **Elongation at Break** | 9–14% | | **Compressive Yield Strength** | 280–330 MPa (41–48 ksi) | | **Shear Strength** | 240–280 MPa (35–41 ksi) | | **Bearing Yield Strength** | 540–600 MPa (78–87 ksi) | | **Fracture Toughness** | 26–32 MPa√m | | **Fatigue Strength** | 140–170 MPa (20–25 ksi) | --- #### **6. Key Characteristics & Advantages** - **High Strength-to-Weight Ratio**: Excellent mechanical properties for weight-critical applications - **Artificial Aging Optimization**: T6 temper provides optimal strength-toughness balance - **Superior Weldability**: One of the most weldable high-strength aluminum alloys - **Excellent Cryogenic Properties**: Maintains toughness at extremely low temperatures - **Good Stress Corrosion Resistance**: Suitable for demanding service environments - **Thermal Stability**: Maintains properties across wide temperature ranges - **Proven Reliability**: Extensive use in aerospace and defense applications --- #### **7. Product Applications** - **Aircraft Structures**: Wing skins, fuselage frames, and bulkheads - **Space Launch Vehicles**: Fuel tanks and oxidizer containers - **Missile Systems**: Rocket motor cases and structural components - **Cryogenic Storage**: Liquid hydrogen and oxygen tanks - **Military Aircraft**: Critical structural components - **Pressure Vessels**: High-pressure containers and vessels --- #### **8. Available Forms** - Plate (6–100 mm thickness) - Sheet (1.0–6.0 mm thickness) - Extruded Shapes - Forging Stock - Welding Wire --- #### **9. Processing and Quality Assurance** - **Machining**: Good machinability with proper tooling and techniques - **Forming**: Limited formability in T6 temper; best formed before final aging - **Welding**: Excellent performance with all common welding methods - **Heat Treatment**: Solution treated at 535–545°C and artificially aged - **Quality Control**: Stringent testing including ultrasonic inspection - **Certification**: Full aerospace qualification and traceability --- **Disclaimer**: The information presented is typical and for reference only. Actual properties may vary with processing and specific manufacturing conditions. For critical aerospace applications, contact our technical service team for specific data and certification requirements.

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 1623 gallon liquid totes Special package is available on request.