7005-T6, 7005-T63, and 7005-T6351 Aluminum alloy,Aluminum 7005-T6, 7005-T63, and 7005-T6351 alloy，E FORU

### **Aluminum 7005-T6, 7005-T63, and 7005-T6351 Alloy (EN AW-7005) - Product Introduction** **Aluminum 7005** in T6, T63, and T6351 tempers represents high-strength conditions of this aluminum-zinc-magnesium alloy, offering varying levels of mechanical properties and stress relief for different application requirements. These tempers provide excellent strength-to-weight ratios combined with good weldability and corrosion resistance. --- #### **1. Chemical Composition** The chemical composition is optimized for high strength and good corrosion resistance: | Element | Content (%) (Typical) | Standard Range (EN 573-3) | |---|---|---| | **Aluminum (Al)** | Balance | Balance | | **Zinc (Zn)** | 4.0 - 5.0 | 4.0 - 5.0 | | **Magnesium (Mg)** | 1.0 - 1.8 | 1.0 - 1.8 | | **Manganese (Mn)** | 0.20 - 0.50 | 0.20 - 0.50 | | **Chromium (Cr)** | 0.06 - 0.20 | 0.06 - 0.20 | | **Zirconium (Zr)** | 0.08 - 0.15 | 0.08 - 0.15 | | **Copper (Cu)** | ≤ 0.10 | ≤ 0.10 | | **Iron (Fe)** | ≤ 0.30 | ≤ 0.30 | | **Silicon (Si)** | ≤ 0.30 | ≤ 0.30 | | **Titanium (Ti)** | ≤ 0.05 | ≤ 0.05 | | **Others (Each)** | ≤ 0.05 | ≤ 0.05 | | **Others (Total)** | ≤ 0.15 | ≤ 0.15 | --- #### **2. Physical Properties** Aluminum 7005 exhibits consistent physical properties across tempers: | Property | Metric Value | Imperial Value | |---|---|---| | **Density** | 2.78 g/cm³ | 0.100 lb/in³ | | **Melting Range** | 475 - 635 °C | 887 - 1175 °F | | **Electrical Conductivity** | 36-40 % IACS | 36-40 % IACS | | **Thermal Conductivity** | 150-165 W/m·K | 1040-1145 BTU·in/(hr·ft²·°F) | | **Coefficient of Thermal Expansion** | 23.7 × 10⁻⁶/K | 13.2 × 10⁻⁶/°F | | **Modulus of Elasticity** | 70 GPa | 10,150 ksi | --- #### **3. Mechanical Properties by Temper** **7005-T6 (Solution Heat Treated and Artificially Aged):** - Tensile Strength: 350-390 MPa (50,800-56,600 psi) - Yield Strength: 290-330 MPa (42,100-47,900 psi) - Elongation: 10-14% - Hardness: 100-110 HB **7005-T63 (Solution Heat Treated, Cold Worked, and Artificially Aged):** - Tensile Strength: 340-380 MPa (49,300-55,100 psi) - Yield Strength: 280-320 MPa (40,600-46,400 psi) - Elongation: 10-13% - Hardness: 98-108 HB **7005-T6351 (Solution Heat Treated, Stress-Relieved by Stretching, and Artificially Aged):** - Tensile Strength: 345-385 MPa (50,000-55,800 psi) - Yield Strength: 285-325 MPa (41,300-47,100 psi) - Elongation: 11-14% - Hardness: 99-109 HB --- #### **4. International Standards** Aluminum 7005 conforms to these international standards: * **EN:** EN AW-7005 (3.3197) * **ISO:** AlZn4.5Mg1.5 under ISO 209 * **ASTM:** ASTM B221, ASTM B241 * **JIS:** JIS H 4040 A7005 * **GB/T:** GB/T 3190 * **AMS:** AMS 4331 --- #### **5. Product Applications** **7005-T6 Applications:** - Bicycle frames and components - Sports equipment - Transportation structures - General high-strength applications **7005-T63 Applications:** - Cold worked components - Parts requiring improved toughness - Automotive components - Machinery parts **7005-T6351 Applications:** - Precision machined components - Aerospace structures - High-tolerance applications - Critical structural components --- #### **6. Key Advantages & Characteristics** **7005-T6 Advantages:** - Highest strength among the three tempers - Excellent strength-to-weight ratio - Good fatigue resistance - Suitable for welded structures **7005-T63 Advantages:** - Improved toughness through cold working - Better stress corrosion resistance - Good machinability - Enhanced dimensional stability **7005-T6351 Advantages:** - Superior dimensional stability - Minimal residual stresses - Excellent for precision machining - Consistent mechanical properties **Heat Treatment Process:** - Solution Treatment: 465-480°C (870-900°F) - Quenching: Rapid water quenching - Aging: 120-140°C (250-285°F) for 16-24 hours - Stress Relieving (T6351): 1.5-3% permanent set --- **Quality Assurance:** - Strict chemical composition control - Mechanical property verification - Non-destructive testing available - Full traceability documentation **Conclusion:** The 7005 alloy in T6, T63, and T6351 tempers offers a range of high-strength options suitable for various demanding applications. While T6 provides maximum strength, T63 offers improved toughness through cold working, and T6351 delivers superior dimensional stability for precision applications. All three tempers maintain the excellent weldability and good corrosion resistance characteristic of the 7005 alloy system, making them valuable choices for transportation, aerospace, and high-performance sporting goods applications where strength-to-weight ratio and reliability are critical factors.

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 2102 gallon liquid totes Special package is available on request.