Alclad 2219-T37 Aluminum alloy,Aluminum 2219-T37 alloy,E FORU

### **Product Datasheet: Alclad 2219-T37 Aluminum Alloy** --- #### **1. Overview** Alclad 2219-T37 Aluminum Alloy is a high-strength aluminum-copper alloy supplied in the T37 temper (solution heat-treated, cold worked to a specific degree, and naturally aged) with a protective aluminum cladding layer. This specific temper provides an optimal balance of strength, formability, and corrosion resistance for aerospace applications requiring moderate forming operations combined with good mechanical properties and environmental durability. --- #### **2. International Standards** - **UNS**: UNS A92219 - **ASTM**: ASTM B209 (Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate) - **AMS**: AMS 4119 (Aerospace Material Specification) - **AA (Aluminum Association)**: AA 2219 - **ISO**: ISO 6361-2 (Wrought Aluminum and Aluminum Alloy Sheet, Strip and Plate) --- #### **3. Chemical Composition** **Core Material (2219) - 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 | **Cladding Material** Pure aluminum (1XXX series) coating, typically 2.5-5% of total thickness per side. --- #### **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** | ~35–39 % IACS | | **Thermal Conductivity** | 118–138 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 (T37 Temper Condition)** | Property | Typical Value | |----------|---------------| | **Tensile Strength (Ultimate)** | 320–370 MPa (46–54 ksi) | | **Tensile Yield Strength (0.2% Offset)** | 200–250 MPa (29–36 ksi) | | **Elongation at Break** | 12–18% | | **Compressive Yield Strength** | 210–260 MPa (30–38 ksi) | | **Shear Strength** | 200–240 MPa (29–35 ksi) | | **Bearing Yield Strength** | 420–480 MPa (61–70 ksi) | | **Hardness (Brinell)** | 80–100 HB | | **Fatigue Strength** | 120–150 MPa (17–22 ksi) | --- #### **6. Key Characteristics & Advantages** - **Controlled Cold Working**: Specific degree of cold work for optimal properties - **Sacrificial Corrosion Protection**: Alclad coating protects core material - **Good Formability**: Suitable for moderate forming operations - **Natural Aging**: Properties stabilize through natural aging process - **Excellent Weldability**: Maintains good welding characteristics - **Cryogenic Performance**: Good toughness at low temperatures - **Consistent Properties**: Reproducible mechanical characteristics --- #### **7. Product Applications** - **Aircraft Structural Panels**: Fuselage and wing components - **Spacecraft Structures**: Fuel tank components and structural members - **Aerospace Skins**: External surfaces requiring corrosion protection - **Marine Aerospace**: Components exposed to corrosive environments - **Military Applications**: Aircraft components requiring durability - **Cryogenic Components**: Applications requiring low-temperature performance --- #### **8. Available Forms** - Sheet (0.8–6.0 mm thickness) - Plate (6–25 mm thickness) - Custom Formed Components - Pre-aged Blanks --- #### **9. Processing and Quality Features** - **Forming Operations**: Suitable for bending and moderate shaping - **Welding**: Excellent performance with standard welding processes - **Machining**: Good machinability with proper techniques - **Aging Characteristics**: Natural aging provides property stability - **Quality Control**: Strict adherence to temper specifications - **Corrosion Performance**: Enhanced durability in harsh environments - **Certification**: Meets aerospace quality standards --- **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 processing recommendations.

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 1614 gallon liquid totes Special package is available on request.