6081 Aluminum alloy,Aluminum 6081 alloy,E FORU

### **Aluminum 6081 Alloy: Product Introduction** **Overview** Aluminum 6081 is a heat-treatable aluminum-magnesium-silicon alloy that represents an advanced member of the 6xxx series aluminum alloys. Designed to offer **enhanced strength characteristics** and **improved extrudability**, this alloy provides a superior combination of mechanical properties and manufacturing flexibility. With its optimized chemical composition, 6081 delivers excellent performance for structural applications requiring high strength-to-weight ratio and good corrosion resistance. --- #### **1. Chemical Composition (Weight %)** | Element | Minimum (%) | Maximum (%) | |---------|-------------|-------------| | Silicon (Si) | 0.7 | 1.1 | | Iron (Fe) | - | 0.40 | | Copper (Cu) | 0.10 | 0.25 | | Manganese (Mn) | 0.10 | 0.30 | | Magnesium (Mg) | 0.6 | 0.9 | | Chromium (Cr) | 0.05 | 0.20 | | Zinc (Zn) | - | 0.15 | | Titanium (Ti) | - | 0.10 | | Other (Each) | - | 0.05 | | Other (Total) | - | 0.15 | | **Aluminum (Al)** | **Balance** | | --- #### **2. Physical Properties** | Property | Metric Value | Imperial Value | |----------|--------------|----------------| | **Density** | 2.70 g/cm³ | 0.0975 lb/in³ | | **Melting Range** | 580-650 °C | 1076-1202 °F | | **Electrical Conductivity** | 48-52% IACS | 48-52% IACS | | **Thermal Conductivity** | 175-190 W/m·K | 1015-1100 BTU·in/(hr·ft²·°F) | | **Coefficient of Thermal Expansion** | 23.6 × 10⁻⁶/°C | 13.1 × 10⁻⁶/°F | | **Modulus of Elasticity** | 68.9 GPa | 10,000 ksi | --- #### **3. Mechanical Properties** **Typical Mechanical Properties by Temper:** | Property | T4 Temper | T6 Temper | |----------|-----------|-----------| | **Tensile Strength** | 220-260 MPa | 310-350 MPa | | **Yield Strength (0.2% Offset)** | 120-150 MPa | 280-320 MPa | | **Elongation (in 50mm)** | 14-18% | 10-14% | | **Hardness (Brinell)** | 65-75 HB | 95-105 HB | | **Shear Strength** | 150-180 MPa | 200-230 MPa | | **Fatigue Strength** | 90-110 MPa | 120-140 MPa | --- #### **4. International Standards** * **European Standards (EN):** * EN 573-3: Chemical composition (Designation: EN AW-6081) * EN 755-2: Mechanical properties for extruded products * EN 485-2: Sheet and plate specifications * **ISO Standards:** * 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 * **National Standards:** * GB/T 3190 (China) * JIS H4040 (Japan) --- #### **5. Product Applications** **Transportation Industry:** - Automotive structural components - Truck and bus frame members - Railway vehicle structures - Vehicle chassis components **Architectural Applications:** - Structural glazing systems - Curtain wall structures - Architectural frameworks - Building structural elements **Industrial Equipment:** - Machinery frames and supports - Material handling equipment - Industrial automation components - Equipment structural members **Consumer Products:** - High-performance bicycle frames - Sports equipment components - Furniture structural elements - Recreational vehicle components --- #### **6. Key Characteristics & Advantages** * **Excellent Strength-to-Weight Ratio:** High mechanical properties with lightweight characteristics * **Superior Extrudability:** Excellent for producing complex profiles and sections * **Good Corrosion Resistance:** Maintains aluminum's inherent corrosion resistance * **Excellent Surface Quality:** Ideal for architectural and visible applications * **Good Weldability:** All common welding methods can be successfully employed * **Excellent Anodizing Response:** Produces high-quality surface finishes * **Heat Treatable:** Responsive to solution treatment and aging processes --- #### **7. Heat Treatment Process** **Solution Heat Treatment:** - Temperature: 525-535°C (977-995°F) - Time: 30-45 minutes depending on thickness - Quenching: Rapid water quenching **Artificial Aging (T6):** - Temperature: 170-180°C (338-356°F) - Time: 6-10 hours - Cooling: Air cooling to room temperature --- #### **8. Processing and Fabrication** **Extrusion Characteristics:** - Excellent for complex profile shapes - Good surface quality with minimal die lines - Suitable for thin-walled sections - Reasonable extrusion speeds achievable **Machining Properties:** - Good machinability in T6 temper - Suitable for precision machining operations - Good surface finish obtainable - Standard tooling applicable **Forming Operations:** - Good formability in T4 temper - Suitable for bending and shaping - Moderate springback characteristics - Adequate for most fabrication needs **Joining Methods:** - Excellent TIG and MIG weldability - Good for resistance welding - Suitable for adhesive bonding - Mechanical fastening easily accomplished --- #### **9. Quality Assurance** **Testing Requirements:** - Mechanical property testing - Chemical composition analysis - Surface quality inspection - Dimensional accuracy checks **Certification Standards:** - EN 10204 3.1/3.2 certification - Third-party inspection available - Full traceability maintained - Quality documentation provided --- **Technical Note:** Aluminum 6081 represents an optimized alloy within the 6xxx series, offering an excellent balance between mechanical properties, manufacturability, and corrosion resistance. The carefully controlled chemical composition provides enhanced strength characteristics while maintaining the excellent extrudability and surface quality that make 6xxx series alloys so valuable for architectural and structural applications. This alloy is particularly suitable for applications where both high strength and aesthetic requirements must be met, making it a preferred choice for visible structural components in transportation, architecture, and high-end consumer products. The combination of performance characteristics and manufacturing flexibility makes 6081 a versatile and reliable choice for demanding applications across multiple industries.

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 2023 gallon liquid totes Special package is available on request.