6060 Aluminum alloy,Aluminum 6060 alloy,E FORU

### **6060 Aluminum Alloy: Product Introduction** **Overview** 6060 aluminum alloy is a widely used, versatile heat-treatable Al-Mg-Si alloy. It is known for its **excellent extrudability, good corrosion resistance, and attractive surface finish**. While its mechanical strength is moderate, it offers an outstanding combination of formability, weldability, and anodizing response, making it one of the most popular choices for complex architectural, decorative, and general engineering extrusions. --- #### **1. Chemical Composition (Weight %)** The chemical composition of 6060 is carefully balanced to prioritize extrudability and surface quality over maximum strength. | Element | Minimum (%) | Maximum (%) | Notes | | :--- | :--- | :--- | :--- | | Silicon (Si) | 0.30 | 0.6 | Key for forming Mg₂Si precipitates. Kept in a tight range for consistent extrusion. | | Iron (Fe) | - | 0.10 - 0.30 | Impurity, controlled to minimize its impact on surface finish. | | Copper (Cu) | - | 0.10 | Kept very low to enhance corrosion resistance and anodizing quality. | | Manganese (Mn) | - | 0.10 | Kept low to maintain extrudability and surface appearance. | | Magnesium (Mg) | 0.35 | 0.6 | Primary element for Mg₂Si formation. Balanced with Si for optimal properties. | | Chromium (Cr) | - | 0.05 | Kept very low. | | Zinc (Zn) | - | 0.15 | Impurity. | | Titanium (Ti) | - | 0.10 | Often added as a grain refiner. | | Other (Each) | - | 0.05 | - | | Other (Total) | - | 0.15 | - | | **Aluminum (Al)** | **Balance** | | | --- #### **2. Physical Properties** The physical properties are typical for the 6xxx series aluminum alloys. | Property | Typical Metric Value | Imperial Value | | :--- | :--- | :--- | | **Density** | 2.70 g/cm³ | 0.0975 lb/in³ | | **Melting Range** | ~ 615 - 655 °C | ~ 1140 - 1210 °F | | **Electrical Conductivity** | ~ 55-60% IACS (T6 temper) | ~ 55-60% IACS | | **Thermal Conductivity** | ~ 190 - 210 W/m·K | ~ 1100 - 1220 BTU·in/(hr·ft²·°F) | | **Coefficient of Thermal Expansion (20-100°C)** | 23.4 x 10⁻⁶ /°C | 13.0 x 10⁻⁶ /°F | --- #### **3. Mechanical Properties (Typical by Temper)** 6060 is commonly supplied in T4, T5, T6, and T66 tempers. The T5 temper (cooled from an elevated temperature shaping process and artificially aged) is extremely common for extrusions. * **T5 Temper (Artificially Aged after Extrusion):** * **Tensile Strength:** ~ 150 - 180 MPa * **Yield Strength (0.2% Offset):** ~ 110 - 140 MPa * **Elongation:** ~ 8 - 12% * **T6 / T66 Temper (Solution Heat-Treated and Artificially Aged):** Provides higher strength. * **Tensile Strength:** ~ 190 - 220 MPa * **Yield Strength (0.2% Offset):** ~ 160 - 190 MPa * **Elongation:** ~ 8 - 12% *(T66 is a variant that guarantees slightly higher minimum mechanical properties than standard T6.)* --- #### **4. International Standards** 6060 is one of the most standardized aluminum alloys globally. * **ISO (International Organization for Standardization):** * **ISO 6361-2:** Wrought aluminum and aluminum alloy sheets, strips and plates. * **ISO 6362-2:** Wrought aluminum and aluminum alloy extruded rods/bars, tubes and profiles. * **EN (European Standards):** * **EN 573-3:** Chemical composition. * **EN 755-2 (Extruded Rod/Bar/Tube/Profile)** and **EN 485-2 (Sheet/Plate)**: Mechanical properties. * The European designation is **EN AW-6060**. * **ASTM (USA):** * **ASTM B221:** Standard Specification for Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes. * **ASTM B210:** Standard Specification for Aluminum and Aluminum-Alloy Drawn Seamless Tubes. * **GB (Chinese Standard):** **GB/T 3190** (Wrought Aluminum and Aluminum Alloy Chemical Composition). --- #### **5. Product Applications** 6060's versatility makes it suitable for a vast range of applications, particularly where complex cross-sections are needed. * **Architectural and Construction:** * **Window and Door Frames** * **Curtain Walling and Structural Glazing** * **Roofing Systems and Handrails** * **Partitions and Shop Fittings** * **General Engineering and Machinery:** * **Pipe Fittings and Connectors** * **Heat Sinks** (due to good thermal conductivity) * **Conveyor System Components** * **Frames for Furniture and Workstations** * **Consumer Goods:** * **Ladders and Scaffolding** * **Sporting Equipment** * **Lighting Structures** * **Transportation:** * **Interior Trim and Decorative Parts** in automotive, rail, and marine. --- #### **6. Key Characteristics & Advantages** * **Excellent Extrudability:** Its primary advantage. It can be extruded into very complex and thin-walled profiles with excellent surface quality at high speeds. * **Superior Surface Finish:** Produces a smooth, bright surface that is ideal for anodizing, painting, or powder coating. The low iron content is key here. * **Very Good Corrosion Resistance:** Its low copper content gives it excellent resistance to atmospheric corrosion, making it ideal for outdoor architectural applications. * **Good Weldability and Brazeability:** Can be easily welded using all common techniques. * **Excellent Anodizing Response:** Produces high-quality, clear, and consistent anodic films, which are crucial for architectural aesthetics and durability. * **High Electrical and Thermal Conductivity:** Makes it a common choice for busbars and heat dissipation applications. **Disclaimer:** The information provided is typical and for reference purposes. Actual properties can vary based on product form, extrusion ratio, specific temper, and the manufacturer. For critical applications, always consult the manufacturer's certified datasheet and the relevant material standards (e.g., EN 755, ASTM B221).

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 1988 gallon liquid totes Special package is available on request.