7026 Aluminum alloy,Aluminum 7026 alloy，E FORU

### **Aluminum 7026 Alloy (EN AW-7026) - Product Introduction** **Aluminum 7026** is a high-strength, heat-treatable aluminum-zinc-magnesium-copper alloy specifically engineered for applications requiring exceptional strength-to-weight ratio combined with good stress corrosion resistance. This advanced 7xxx series alloy offers superior mechanical properties suitable for aerospace, defense, and high-performance structural applications where reliability and durability are paramount. --- #### **1. Chemical Composition** The chemical composition is optimized for maximum performance: | Element | Content (%) (Typical) | Standard Range | |---|---|---| | **Aluminum (Al)** | Balance | Balance | | **Zinc (Zn)** | 5.8 - 6.8 | 5.8 - 6.8 | | **Magnesium (Mg)** | 2.3 - 3.0 | 2.3 - 3.0 | | **Copper (Cu)** | 1.2 - 1.8 | 1.2 - 1.8 | | **Zirconium (Zr)** | 0.10 - 0.18 | 0.10 - 0.18 | | **Manganese (Mn)** | 0.05 - 0.15 | 0.05 - 0.15 | | **Chromium (Cr)** | 0.08 - 0.16 | 0.08 - 0.16 | | **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 7026 exhibits excellent physical properties: | Property | Metric Value | Imperial Value | |---|---|---| | **Density** | 2.82 g/cm³ | 0.102 lb/in³ | | **Melting Range** | 475 - 635 °C | 887 - 1175 °F | | **Electrical Conductivity** | 34-38 % IACS (T6 Temper) | 34-38 % IACS | | **Thermal Conductivity** | 138-153 W/m·K | 955-1060 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** | 560-610 | 490-540 | 9-13 | 150-160 | | **T651** | 570-620 | 500-550 | 8-12 | 153-163 | | **T7351** | 520-570 | 450-500 | 10-14 | 140-150 | | **T7651** | 540-590 | 470-520 | 9-13 | 145-155 | --- #### **4. International Standards** Aluminum 7026 complies with the following international standards: * **EN:** **EN AW-7026** (3.4334) * **ASTM:** **ASTM B209**, **ASTM B247** * **ISO:** **AlZn6MgCu** under ISO 209 * **AMS:** **AMS 4117** (Aerospace Material Specification) * **UNS:** **A97026** * **MIL:** **MIL-A-22771** --- #### **5. Product Applications** Aluminum 7026 is used in the most demanding applications: * **Aircraft Structures:** Primary aircraft structures, wing spars, bulkheads * **Military Aerospace:** Fighter aircraft components, military transport structures * **Space Systems:** Satellite frames, launch vehicle components * **Defense Equipment:** Missile components, armored vehicle structures * **High-Performance Automotive:** Racing chassis and suspension components * **Marine Defense:** Naval vessel structures, submarine components * **Industrial Machinery:** High-stress press frames, heavy machinery * **Sports Equipment:** Professional competition bicycle frames --- #### **6. Key Advantages & Characteristics** * **Ultra-High Strength:** Exceptional mechanical properties with tensile strength up to 620 MPa * **Superior Fatigue Resistance:** Excellent performance under cyclic loading conditions * **Enhanced Corrosion Resistance:** Improved stress corrosion cracking resistance * **Excellent Fracture Toughness:** Superior damage tolerance characteristics * **Outstanding Strength-to-Weight Ratio:** Premium mechanical properties with low density * **Thermal Stability:** Maintains properties at elevated temperatures * **Good Machinability:** Suitable for precision manufacturing * **Weldability:** Can be joined using advanced welding techniques **Heat Treatment Characteristics:** - Solution treatment: 465-475°C (870-885°F) - Artificial aging: 120-140°C (250-285°F) - T7-type tempers provide optimal corrosion resistance - Complex aging sequences for property optimization **Corrosion Performance:** - Excellent stress corrosion cracking resistance - Good exfoliation corrosion resistance - Suitable for severe environmental conditions - Maintains integrity in corrosive atmospheres **Manufacturing Characteristics:** - Good forgeability within specified temperature ranges - Suitable for complex structural components - Requires specialized machining techniques - Can be joined using friction stir welding --- **Quality Assurance:** - Stringent chemical composition controls - Comprehensive mechanical property testing - Advanced non-destructive evaluation - Full traceability from raw material to finished part - Regular audit and certification requirements **Processing Recommendations:** - Use premium carbide tooling for machining operations - Implement strict heat treatment controls - Follow specialized welding procedures - Apply appropriate corrosion protection when needed - Maintain clean processing environments --- **Conclusion:** Aluminum 7026 represents a premium high-strength aluminum alloy offering an exceptional combination of mechanical properties, corrosion resistance, and manufacturing capabilities. Its advanced composition and optimized heat treatment response make it particularly valuable for critical aerospace, defense, and high-performance applications where reliability and performance are paramount. The alloy's ability to maintain excellent properties under demanding conditions, combined with its superior strength characteristics, establishes it as a preferred material for engineers and designers working on cutting-edge structural applications. For projects requiring the ultimate in aluminum alloy performance with balanced characteristics, Aluminum 7026 delivers outstanding value and reliability in the most demanding engineering scenarios.

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 2122 gallon liquid totes Special package is available on request.