7060 Aluminum alloy,Aluminum 7060 alloy，E FORU

### **7060 Aluminum Alloy: Medium-Strength Corrosion Resistant Alloy** **7060 Aluminum Alloy** is a heat-treatable aluminum-zinc-magnesium alloy from the 7xxx series, designed to provide a good combination of medium strength, excellent corrosion resistance, and superior weldability. This alloy is particularly noted for its ability to maintain good mechanical properties in welded conditions, making it suitable for structural applications where welding is required. --- #### **1. Chemical Composition** | Element | Content (%) (Typical) | Role in the Alloy | | :--- | :--- | :--- | | **Zinc (Zn)** | 4.5 - 5.5 | Primary strengthening element through formation of MgZn₂ precipitates | | **Magnesium (Mg)** | 1.6 - 2.3 | Enhances strength and work hardening characteristics | | **Copper (Cu)** | 0.50 - 1.0 | Improves strength while maintaining good corrosion resistance | | **Zirconium (Zr)** | 0.05 - 0.15 | Controls grain structure and inhibits recrystallization | | **Manganese (Mn)** | 0.05 - 0.15 | Enhances strength and grain structure control | | **Chromium (Cr)** | 0.05 - 0.15 | Improves corrosion resistance and grain structure | | **Iron (Fe)** | ≤ 0.15 | Impurity - controlled for improved corrosion resistance | | **Silicon (Si)** | ≤ 0.12 | Impurity - controlled for improved ductility | | **Titanium (Ti)** | ≤ 0.06 | Grain refiner | | **Other Elements** | ≤ 0.05 each; ≤ 0.15 total | - | | **Aluminum (Al)** | Balance | Base metal | --- #### **2. Physical Properties** | Property | Value / Description | | :--- | :--- | | **Density** | 2.80 g/cm³ (0.101 lb/in³) | | **Melting Range** | 475°C - 635°C (887°F - 1175°F) | | **Electrical Conductivity** | 42-47% IACS | | **Thermal Conductivity** | 135-150 W/m·K | | **Coefficient of Thermal Expansion** | 23.8 × 10⁻⁶/°C (20-100°C) | | **Modulus of Elasticity** | 71 GPa (10.3 × 10⁶ psi) | --- #### **3. Mechanical Properties (Typical for T6 Temper)** | Property | Typical Value | | :--- | :--- | | **Tensile Ultimate Strength** | 420 - 470 MPa (61 - 68 ksi) | | **Tensile Yield Strength (0.2% Offset)** | 360 - 410 MPa (52 - 59 ksi) | | **Elongation** | 12-16% | | **Compression Yield Strength** | 350 - 400 MPa (51 - 58 ksi) | | **Shear Strength** | 250 - 280 MPa (36 - 41 ksi) | | **Fatigue Strength** | 140 - 160 MPa (20 - 23 ksi) | | **Brinell Hardness** | 120 - 140 HB | --- #### **4. Product Applications** **7060 Aluminum Alloy** is used in applications requiring good weldability and corrosion resistance: * **Transportation Industry:** * Railway vehicle structures * Truck frames and bodies * Trailers and semi-trailers * Bus structures * **Marine Applications:** * Ship and boat structures * * Offshore platform components * Marine equipment * **Structural Applications:** * Bridges and walkways * Structural frameworks * Construction equipment * **Industrial Applications:** * Pressure vessels * Storage tanks * Material handling equipment --- #### **5. International Standards** | Standard Body | Designation | Specification | | :--- | :--- | :--- | | **Aluminum Association** | 7060 | AA Teal Sheets | | **ASTM International** | 7060 | ASTM B209 / B221 | | **European Norm** | EN AW-7060 | EN 485-2 / EN 755-2 | | **Japanese Standards** | A7060 | JIS H 4000 | | **Unified Numbering System** | A97060 | UNS Registry | --- #### **6. Key Characteristics** **Advantages:** * Excellent weldability * Good corrosion resistance * Medium to high strength * Good stress corrosion cracking resistance * Excellent fatigue performance * Good formability * Maintains properties in welded condition **Limitations:** * Lower strength than other 7xxx series alloys * Requires proper heat treatment * Not suitable for ultra-high strength applications **Heat Treatment:** Typical heat treatment includes: * Solution treatment at 465-475°C * Quenching * Artificial aging at 120-140°C --- #### **7. Manufacturing Considerations** * **Welding:** Excellent weldability using MIG and TIG methods * **Machining:** Good machinability in aged condition * **Forming:** Good formability in annealed condition * **Corrosion Protection:** Good inherent corrosion resistance * **Heat Treatment:** Responds well to artificial aging --- #### **8. Special Features** **7060 Aluminum Alloy** offers several distinctive advantages: * **Weldability:** Maintains good mechanical properties in welded joints * **Corrosion Resistance:** Excellent performance in various environments * **Balanced Properties:** Good combination of strength and ductility * **Versatility:** Suitable for various manufacturing processes The alloy is particularly valued for applications where welding is required and where a good balance between strength and corrosion resistance is needed. Its composition is optimized to provide reliable performance in demanding service conditions while maintaining good manufacturability. **7060 Aluminum Alloy** represents an excellent choice for structural applications requiring good weldability and corrosion resistance, filling an important niche between the high-strength aerospace alloys and the more common structural aluminum alloys.

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 2156 gallon liquid totes Special package is available on request.