7022 Aluminum alloy,Aluminum 7022 alloy，E FORU

### **Aluminum 7022 Alloy (EN AW-7022) - Product Introduction** **Aluminum 7022** is a high-strength, heat-treatable aluminum-zinc-magnesium-copper alloy specifically designed for applications requiring exceptional strength combined with good toughness and corrosion resistance. As part of the 7xxx series aluminum alloys, it offers superior mechanical properties suitable for demanding aerospace, defense, and high-performance engineering applications. --- #### **1. Chemical Composition** The chemical composition is optimized for maximum strength and durability: | Element | Content (%) (Typical) | Standard Range | |---|---|---| | **Aluminum (Al)** | Balance | Balance | | **Zinc (Zn)** | 4.7 - 5.7 | 4.7 - 5.7 | | **Magnesium (Mg)** | 2.5 - 3.2 | 2.5 - 3.2 | | **Copper (Cu)** | 0.8 - 1.5 | 0.8 - 1.5 | | **Zirconium (Zr)** | 0.08 - 0.15 | 0.08 - 0.15 | | **Manganese (Mn)** | 0.05 - 0.15 | 0.05 - 0.15 | | **Chromium (Cr)** | 0.10 - 0.20 | 0.10 - 0.20 | | **Iron (Fe)** | ≤ 0.15 | ≤ 0.15 | | **Silicon (Si)** | ≤ 0.12 | ≤ 0.12 | | **Titanium (Ti)** | ≤ 0.05 | ≤ 0.05 | | **Others (Each)** | ≤ 0.05 | ≤ 0.05 | | **Others (Total)** | ≤ 0.15 | ≤ 0.15 | --- #### **2. Physical Properties** Aluminum 7022 exhibits excellent physical properties for high-strength applications: | Property | Metric Value | Imperial Value | |---|---|---| | **Density** | 2.81 g/cm³ | 0.101 lb/in³ | | **Melting Range** | 475 - 635 °C | 887 - 1175 °F | | **Electrical Conductivity** | 35-39 % IACS (T6 Temper) | 35-39 % IACS | | **Thermal Conductivity** | 140-155 W/m·K | 970-1075 BTU·in/(hr·ft²·°F) | | **Coefficient of Thermal Expansion** | 23.6 × 10⁻⁶/K | 13.1 × 10⁻⁶/°F | | **Modulus of Elasticity** | 71 GPa | 10,300 ksi | | **Shear Modulus** | 27 GPa | 3,920 ksi | --- #### **3. Mechanical Properties** Typical mechanical properties for common tempers: | Temper | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness (HB) | |---|---|---|---|---| | **T6** | 530-580 | 460-510 | 10-14 | 145-155 | | **T651** | 540-590 | 470-520 | 9-13 | 148-158 | | **T7351** | 490-540 | 420-470 | 11-15 | 135-145 | | **T7651** | 510-560 | 440-490 | 10-14 | 140-150 | --- #### **4. International Standards** Aluminum 7022 complies with the following international standards: * **EN:** **EN AW-7022** (3.4330) * **ASTM:** **ASTM B209**, **ASTM B247** * **ISO:** **AlZn5Mg3Cu** under ISO 209 * **AMS:** **AMS 4113** (Aerospace Material Specification) * **UNS:** **A97022** * **MIL:** **MIL-A-22771** --- #### **5. Product Applications** Aluminum 7022 is used in demanding high-performance applications: * **Aerospace Structures:** Aircraft wing components, fuselage frames * **Military Applications:** Military vehicle components, defense systems * **High-Performance Automotive:** Racing chassis components, suspension parts * **Marine Structures:** High-speed boat components, marine hardware * **Industrial Equipment:** High-stress machinery components, press frames * **Sports Equipment:** Professional cycling frames, high-performance sports gear * **Defense Systems:** Military equipment components, armored vehicle parts * **Transportation:** High-strength vehicle structural components --- #### **6. Key Advantages & Characteristics** * **High Strength-to-Weight Ratio:** Excellent mechanical properties with low density * **Good Toughness:** Balanced combination of strength and fracture resistance * **Superior Fatigue Performance:** Excellent resistance to cyclic loading * **Good Corrosion Resistance:** Adequate resistance for most environmental conditions * **Excellent Heat Treatability:** Responsive to artificial aging treatments * **Good Machinability:** Suitable for precision manufacturing operations * **Weldability:** Can be welded using specialized techniques * **Thermal Stability:** Maintains properties at moderate temperatures **Heat Treatment Characteristics:** - Solution treatment temperature: 465-475°C (870-885°F) - Artificial aging temperature: 120-140°C (250-285°F) - Good response to T7-type overaging treatments - Stable mechanical properties after proper aging **Corrosion Performance:** - Good stress corrosion cracking resistance - Adequate general corrosion resistance - Suitable for aerospace and industrial environments - Can be enhanced with protective coatings **Manufacturing Characteristics:** - Good extrudability and forgeability - Suitable for complex structural shapes - Can be machined using conventional methods - Weldable using appropriate procedures --- **Quality Assurance:** - Strict chemical composition control - Comprehensive mechanical testing - Non-destructive testing capabilities - Full material traceability - Certification to international standards **Processing Recommendations:** - Use carbide tooling for machining operations - Follow recommended heat treatment cycles - Implement proper quality control measures - Use appropriate welding techniques - Maintain clean processing environment --- **Conclusion:** Aluminum 7022 represents a well-balanced high-strength aluminum alloy that offers an excellent combination of mechanical properties, fatigue performance, and manufacturing characteristics. Its optimized composition and heat treatment response make it particularly valuable for aerospace, defense, and high-performance applications where reliability and structural efficiency are critical. The alloy's ability to deliver consistent performance under demanding conditions, combined with its good processing characteristics, establishes it as a reliable choice for engineers and designers working on advanced structural applications. For projects requiring high strength with good overall performance characteristics, Aluminum 7022 provides an excellent balance of properties and processing capabilities.

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 2118 gallon liquid totes Special package is available on request.