7035 Aluminum alloy,Aluminum 7035 alloy，E FORU

### **Aluminum 7035 Alloy (EN AW-7035) - Product Introduction** **Aluminum 7035** is a high-strength, heat-treatable aluminum-zinc-magnesium-copper alloy specifically designed for applications requiring exceptional strength combined with good stress corrosion resistance. This advanced 7xxx series alloy offers a balanced combination of ultra-high strength and enhanced durability, making it particularly suitable for critical aerospace and defense applications. --- #### **1. Chemical Composition** The chemical composition is optimized for maximum performance: | Element | Content (%) (Typical) | Standard Range | |---|---|---| | **Aluminum (Al)** | Balance | Balance | | **Zinc (Zn)** | 6.2 - 7.2 | 6.2 - 7.2 | | **Magnesium (Mg)** | 2.6 - 3.3 | 2.6 - 3.3 | | **Copper (Cu)** | 1.4 - 2.0 | 1.4 - 2.0 | | **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 7035 exhibits excellent physical properties: | Property | Metric Value | Imperial Value | |---|---|---| | **Density** | 2.83 g/cm³ | 0.102 lb/in³ | | **Melting Range** | 475 - 635 °C | 887 - 1175 °F | | **Electrical Conductivity** | 33-37 % IACS (T6 Temper) | 33-37 % IACS | | **Thermal Conductivity** | 132-147 W/m·K | 915-1020 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** | 600-650 | 540-590 | 8-12 | 160-170 | | **T651** | 610-660 | 550-600 | 7-11 | 163-173 | | **T7351** | 560-610 | 500-550 | 9-13 | 150-160 | | **T7651** | 580-630 | 520-570 | 8-12 | 155-165 | --- #### **4. International Standards** Aluminum 7035 complies with the following international standards: * **AMS:** **AMS 4124** (Aerospace Material Specification) * **ASTM:** **ASTM B209**, **ASTM B247** * **EN:** **EN AW-7035** (3.4342) * **ISO:** **AlZn7MgCu** under ISO 209 * **UNS:** **A97035** * **MIL:** **MIL-A-22771** --- #### **5. Product Applications** Aluminum 7035 is used in the most demanding applications: * **Aircraft Structures:** Primary wing spars, fuselage frames, bulkheads * **Military Aerospace:** Fighter aircraft primary structures * **Space Systems:** Launch vehicle components, satellite frames * **Defense Equipment:** Missile structures, armored vehicle components * **High-Performance Automotive:** Racing chassis and suspension * **Marine Defense:** Naval vessel structural components * **Industrial Equipment:** Ultra-high stress machinery components * **Sports Equipment:** Professional competition equipment frames --- #### **6. Key Advantages & Characteristics** * **Ultra-High Strength:** Exceptional mechanical properties approaching 660 MPa tensile strength * **Enhanced Toughness:** Improved fracture toughness characteristics * **Good Stress Corrosion Resistance:** Balanced SCC resistance for high-strength alloy * **Excellent Fatigue Performance:** Superior resistance to cyclic loading * **Damage Tolerance:** Good resistance to crack propagation * **Premium Strength-to-Weight Ratio:** Unmatched mechanical properties * **Thermal Stability:** Maintains properties at elevated temperatures * **Cryogenic Capability:** Good performance at low temperatures **Heat Treatment Characteristics:** - Solution treatment: 465-475°C (870-885°F) - Artificial aging: 120-140°C (250-285°F) - T7-type tempers provide improved corrosion resistance - Complex aging sequences for property optimization **Corrosion Performance:** - Good stress corrosion cracking resistance - Adequate exfoliation corrosion resistance - Suitable for protected environmental conditions - May require protective coatings for severe environments **Manufacturing Characteristics:** - Good forgeability within specified ranges - Suitable for complex structural components - Requires specialized machining techniques - Can be joined using advanced welding methods --- **Quality Assurance:** - Stringent chemical composition controls - Comprehensive mechanical property testing - Advanced non-destructive evaluation - Full traceability and certification - Regular quality audits and verification **Processing Recommendations:** - Use premium carbide tooling for machining - Implement strict heat treatment controls - Follow specialized welding procedures - Apply corrosion protection when needed - Maintain clean processing environments --- **Conclusion:** Aluminum 7035 represents a premium ultra-high-strength aluminum alloy offering an exceptional combination of mechanical properties and enhanced durability. Its advanced composition and optimized heat treatment response make it particularly valuable for critical aerospace and defense applications where both strength and reliability 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 the most demanding engineering applications. For projects requiring the ultimate in aluminum alloy performance with balanced characteristics, Aluminum 7035 delivers outstanding value and reliability in the most challenging 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 2130 gallon liquid totes Special package is available on request.