2224A Aluminum alloy,Aluminum 2224A alloy,E FORU

### **Product Datasheet: 2224A Aluminum Alloy** --- #### **1. Overview** 2224A Aluminum Alloy is an enhanced version of the standard 2224 alloy, featuring refined composition controls and improved processing to deliver more consistent mechanical properties and enhanced performance characteristics. This premium aerospace alloy maintains the excellent damage tolerance and fatigue resistance of 2224 while offering improved consistency in fracture toughness and fatigue crack growth resistance, making it particularly suitable for critical aircraft structural applications. --- #### **2. International Standards** - **UNS**: UNS A92224 (Modified) - **ASTM**: ASTM B209 (Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate) - **AMS**: AMS 4225 (Aerospace Material Specification) - **AA (Aluminum Association)**: AA 2224 (Enhanced Grade) - **ISO**: ISO 6361-2 (Wrought Aluminum and Aluminum Alloy Sheet, Strip and Plate) --- #### **3. Chemical Composition (Weight %)** | Element | Content (%) | |---------|-------------| | **Aluminum (Al)** | Balance | | **Copper (Cu)** | 3.9–4.4 | | **Magnesium (Mg)** | 1.3–1.8 | | **Manganese (Mn)** | 0.40–0.9 | | **Iron (Fe)** | ≤ 0.12 | | **Silicon (Si)** | ≤ 0.10 | | **Zinc (Zn)** | ≤ 0.20 | | **Chromium (Cr)** | ≤ 0.05 | | **Titanium (Ti)** | 0.05–0.15 | | **Other Elements** | ≤ 0.05 each | | **Total Others** | ≤ 0.15 | --- #### **4. Physical Properties** | Property | Value | |----------|-------| | **Density** | 2.78–2.80 g/cm³ (0.100–0.101 lb/in³) | | **Melting Range** | ~550–640°C (1020–1185°F) | | **Electrical Conductivity** | ~34–38 % IACS | | **Thermal Conductivity** | 118–138 W/m·K | | **Coefficient of Thermal Expansion** | 22.8–23.8 × 10⁻⁶/°C (20–100°C) | | **Modulus of Elasticity** | 71.0–73.0 GPa (10,300–10,600 ksi) | --- #### **5. Mechanical Properties (Typical Values - T351 Temper)** | Property | Typical Value | |----------|---------------| | **Tensile Strength (Ultimate)** | 430–480 MPa (62–70 ksi) | | **Tensile Yield Strength (0.2% Offset)** | 300–350 MPa (44–51 ksi) | | **Elongation at Break** | 13–18% | | **Compressive Yield Strength** | 310–360 MPa (45–52 ksi) | | **Shear Strength** | 260–300 MPa (38–44 ksi) | | **Bearing Yield Strength** | 590–650 MPa (86–94 ksi) | | **Fracture Toughness (L-T方向)** | 34–40 MPa√m | | **Fatigue Strength** | 155–185 MPa (22–27 ksi) | --- #### **6. Key Characteristics & Advantages** - **Enhanced Property Consistency**: Tighter composition controls for more uniform properties - **Improved Fracture Toughness**: Superior damage tolerance characteristics - **Optimized Fatigue Performance**: Enhanced resistance to crack initiation and growth - **Better Corrosion Resistance**: Refined composition improves environmental performance - **Superior Quality Assurance**: Enhanced manufacturing process controls - **Aerospace Certification**: Meets stringent aircraft manufacturer requirements - **Manufacturing Reliability**: Consistent performance in production environments --- #### **7. Product Applications** - **Commercial Aircraft**: Lower wing skins and fuselage panels - **Military Aircraft**: Critical structural components - **Aerospace Structures**: Primary and secondary structural elements - **Wing Components**: Spars, ribs, and stringers - **Helicopter Airframes**: Structural panels and components - **Space Vehicles**: Secondary structural applications --- #### **8. Available Forms** - Sheet (0.8–8.0 mm thickness) - Plate (8–100 mm thickness) - Precision Blanks - Custom Formed Parts --- #### **9. Processing and Quality Features** - **Enhanced Process Controls**: Strict manufacturing parameter controls - **Advanced Heat Treatment**: Optimized T351 temper processing - **Quality Verification**: Enhanced non-destructive testing protocols - **Traceability**: Complete material history documentation - **Surface Quality**: Superior surface finish standards - **Certification**: Extended certification package available - **Technical Support**: Comprehensive application engineering support --- **Disclaimer**: The information presented represents the enhanced 2224A alloy characteristics. Actual properties may vary with processing and specific manufacturing conditions. For critical aerospace applications requiring premium quality, contact our technical service team for complete documentation 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 1630 gallon liquid totes Special package is available on request.