7095 Aluminum alloy,Aluminum 7095 alloy，E FORU

### **7095 Aluminum Alloy: Advanced High-Strength Powder Metallurgy Alloy** **7095 Aluminum Alloy** is an advanced high-strength aluminum-zinc-magnesium-copper alloy manufactured through powder metallurgy (PM) processing. As part of the new generation of PM aluminum alloys, 7095 offers an exceptional combination of ultra-high strength, good toughness, and improved corrosion resistance, making it suitable for the most demanding aerospace and defense applications. --- #### **1. Chemical Composition** | Element | Content (%) (Typical) | Role in the Alloy | | :--- | :--- | :--- | | **Zinc (Zn)** | 7.8 - 9.2 | Primary strengthening element through formation of MgZn₂ precipitates | | **Magnesium (Mg)** | 1.8 - 2.6 | Enhances strength and age-hardening response | | **Copper (Cu)** | 1.0 - 1.8 | Improves strength and stress corrosion cracking resistance | | **Cobalt (Co)** | 0.3 - 0.7 | Forms fine Co-containing dispersoids for microstructural control | | **Zirconium (Zr)** | 0.08 - 0.15 | Additional grain structure control and recrystallization inhibition | | **Iron (Fe)** | ≤ 0.12 | Tightly controlled impurity | | **Silicon (Si)** | ≤ 0.10 | Tightly controlled impurity | | **Oxygen (O)** | ≤ 0.18 | Controlled from powder processing | | **Other Elements** | ≤ 0.05 each; ≤ 0.15 total | - | | **Aluminum (Al)** | Balance | Base metal | --- #### **2. Manufacturing Process** **Powder Metallurgy Route:** - **Gas Atomization:** Produces fine, spherical alloy powder - **Powder Handling:** Sieving, blending, and vacuum degassing - **Consolidation:** Hot isostatic pressing (HIP) or extrusion - **Thermomechanical Processing:** Forging, rolling to final shapes - **Heat Treatment:** Solution treatment and controlled aging **Key PM Advantages:** - Fine, homogeneous microstructure - Reduced elemental segregation - Enhanced mechanical properties - Ability to achieve novel compositions --- #### **3. Physical Properties** | Property | Value / Description | | :--- | :--- | | **Density** | 2.82 g/cm³ (0.102 lb/in³) | | **Melting Range** | 475°C - 638°C (887°F - 1180°F) | | **Electrical Conductivity** | 35-39% IACS | | **Thermal Conductivity** | 115-135 W/m·K | | **Coefficient of Thermal Expansion** | 23.5 × 10⁻⁶/°C (20-100°C) | | **Modulus of Elasticity** | 72 GPa (10.4 × 10⁶ psi) | --- #### **4. Mechanical Properties (Typical for T7-type Temper)** | Property | Typical Value | | :--- | :--- | | **Tensile Ultimate Strength** | 630 - 690 MPa (91 - 100 ksi) | | **Tensile Yield Strength (0.2% Offset)** | 590 - 650 MPa (86 - 94 ksi) | | **Elongation** | 6-10% | | **Compression Yield Strength** | 580 - 640 MPa (84 - 93 ksi) | | **Shear Strength** | 360 - 400 MPa (52 - 58 ksi) | | **Fatigue Strength** | 195 - 225 MPa (28 - 33 ksi) | | **Fracture Toughness (K1C)** | 25-31 MPa·√m | --- #### **5. Product Applications** **7095 Aluminum Alloy** is used in critical high-performance applications: * **Aerospace Structures:** * Aircraft landing gear components * Wing spar components * Fuselage frames and bulkheads * Helicopter rotor components * **Defense Applications:** * Missile and rocket components * Armored vehicle components * Military aircraft structures * Defense system components * **Space Applications:** * Space launch vehicle structures * Satellite components * Spacecraft structural members * **High-Performance Applications:** * Racing vehicle components * High-stress automotive parts * Specialized industrial equipment --- #### **6. International Standards** | Standard Body | Designation | Specification | | :--- | :--- | :--- | | **Aluminum Association** | 7095 | AA Teal Sheets | | **ASTM International** | 7095 | ASTM B595 | | **Aerospace (AMS)** | - | Under development | | **Military Standards** | Various | Material specifications | --- #### **7. Key Characteristics** **Advantages:** - **Ultra-high strength** capability - **Excellent strength-to-weight ratio** - **Good fracture toughness** - **Improved stress corrosion cracking resistance** - **Fine, homogeneous microstructure** - **Enhanced fatigue performance** - **Superior thermal stability** **Limitations:** - **High manufacturing cost** - **Limited product forms and sizes** - **Complex processing requirements** - **Challenging machining operations** - **Limited industrial experience** --- #### **8. Manufacturing Considerations** * **Machining:** Requires specialized tooling and techniques * **Forming:** Primarily near-net shape manufacturing * **Joining:** Specialized welding techniques required * **Heat Treatment:** Precise control essential * **Quality Control:** Extensive testing and inspection --- #### **9. Special Features** **7095 Aluminum Alloy** offers advanced characteristics: * **Microstructural Advantages:** Fine, uniform structure from rapid solidification * **Property Optimization:** Excellent strength-toughness combination * **Advanced Processing:** Leverages powder metallurgy benefits * **Performance Enhancement:** Superior to conventional wrought alloys **Comparison with Conventional Alloys:** - 15-20% higher strength than 7075-T6 - Better corrosion resistance - Improved damage tolerance - More consistent properties --- #### **10. Future Outlook** * **Process Development:** Ongoing optimization of manufacturing * **Cost Reduction:** Efforts to make production more economical * **Application Expansion:** Qualification for new applications * **Standardization:** Development of industry standards **7095 Aluminum Alloy** represents significant advancement in aluminum alloy technology, demonstrating the performance benefits achievable through powder metallurgy processing. While currently used in specialized applications, this alloy shows great potential for expanding into broader aerospace and defense applications as manufacturing capabilities improve and costs become more competitive. The unique combination of properties offered by 7095 makes it a promising material for next-generation structural applications where weight reduction and performance are critical requirements.

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 2177 gallon liquid totes Special package is available on request.