7005-T53 Aluminum alloy,Aluminum 7005-T53 alloy，E FORU

### **Aluminum 7005-T53 Alloy (EN AW-7005) - Product Introduction** **Aluminum 7005-T53** is a heat-treatable aluminum-zinc-magnesium alloy that has been artificially aged to achieve a favorable balance of strength, toughness, and stress corrosion resistance. The T53 temper designation indicates specific aging conditions that provide improved stress corrosion cracking resistance compared to the peak-aged T6 temper, making it suitable for applications where both strength and environmental durability are important. --- #### **1. Chemical Composition** The chemical composition is optimized for strength and 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-T53 exhibits well-balanced physical properties: | Property | Metric Value | Imperial Value | |---|---|---| | **Density** | 2.78 g/cm³ | 0.100 lb/in³ | | **Melting Range** | 475 - 635 °C | 887 - 1175 °F | | **Electrical Conductivity** | 38-42 % IACS | 38-42 % IACS | | **Thermal Conductivity** | 155-170 W/m·K | 1075-1180 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 | | **Shear Modulus** | 26.5 GPa | 3,840 ksi | --- #### **3. Mechanical Properties** **7005-T53 Mechanical Properties:** | Property | Metric Value | Imperial Value | |---|---|---| | **Tensile Strength, Ultimate** | 310-350 MPa | 45,000-50,800 psi | | **Tensile Strength, Yield (0.2%)** | 260-300 MPa | 37,700-43,500 psi | | **Elongation in 50mm** | 11-15% | 11-15% | | **Hardness (Brinell)** | 95-105 HB | 95-105 HB | | **Shear Strength** | 195 MPa | 28,300 psi | | **Fatigue Strength** | 120 MPa | 17,400 psi | | **Fracture Toughness** | 30-35 MPa·√m | 27-32 ksi·√in | --- #### **4. International Standards** Aluminum 7005-T53 conforms to these international standards: * **European Standard (EN):** **EN AW-7005** (Material Number 3.3197) * **ISO:** **AlZn4.5Mg1.5** under ISO 209 * **JIS:** **JIS H 4040** (A7005) * **EN 755:** Aluminum and aluminum alloy extruded rod/bar, tube and profiles * **ASTM:** **ASTM B221** for Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes * **GB/T:** **GB/T 3190** (Chinese National Standard) --- #### **5. Product Applications** Aluminum 7005-T53 is used in applications requiring balanced properties: * **Bicycle Frames:** High-performance bicycle components * **Transportation Structures:** Railway vehicle components, truck frames * **Marine Components:** Boat structures, marine hardware * **Sports Equipment:** Baseball bats, tennis rackets, climbing gear * **Architectural Structures:** Building frameworks, structural supports * **Automotive Components:** Vehicle structural members * **Industrial Equipment:** Machinery frames, structural components * **Outdoor Applications:** Components exposed to weather conditions --- #### **6. Key Advantages & Characteristics** * **Good Strength-Toughness Balance:** Optimal combination of mechanical properties * **Improved Stress Corrosion Resistance:** Better SCC resistance than T6 temper * **Excellent Weldability:** Maintains good properties in welded condition * **Good Fatigue Performance:** Excellent resistance to cyclic loading * **Fracture Toughness:** Good damage tolerance characteristics * **Extrudability:** Suitable for manufacturing complex profiles * **Weight Savings:** High strength-to-weight ratio * **Environmental Durability:** Suitable for outdoor applications **Heat Treatment Process:** - Solution Treatment: 465-480°C (870-900°F) - Artificial Aging: Two-stage aging process - First stage: 110-130°C (230-265°F) - Second stage: 150-170°C (300-340°F) for improved SCC resistance **T53 vs T6 Characteristics:** - **T53:** Slightly lower strength but better stress corrosion resistance - **T53:** Improved dimensional stability - **T53:** Better performance in corrosive environments - **T53:** Superior long-term reliability **Corrosion Performance:** - Good resistance to stress corrosion cracking - Adequate general corrosion resistance - Suitable for marine and industrial atmospheres - Good performance in various environmental conditions --- **Processing Recommendations:** - Use carbide tooling for machining operations - Handle with care to prevent surface damage - Store in dry conditions when possible - Follow recommended welding procedures - Use proper corrosion protection for marine applications **Design Considerations:** - Ideal for applications requiring both strength and corrosion resistance - Suitable for welded structures - Excellent for components exposed to outdoor environments - Preferred for applications where stress corrosion is a concern --- **Conclusion:** Aluminum 7005-T53 offers an excellent balance of mechanical properties and environmental durability, making it particularly valuable for applications requiring both strength and corrosion resistance. While providing slightly lower strength than the T6 temper, the T53 condition delivers significantly enhanced resistance to stress corrosion cracking and improved overall durability. This combination of properties makes 7005-T53 an ideal choice for transportation, sports equipment, and structural applications operating in demanding environmental conditions where reliability and long-term performance are essential.

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 2101 gallon liquid totes Special package is available on request.