6063-T83 Aluminum alloy,Aluminum 6063-T83 alloy,E FORU

### **Aluminum 6063-T83 Alloy: Product Introduction** **Overview** Aluminum 6063-T83 is a specialized temper of the 6063 aluminum-magnesium-silicon alloy that has undergone a **solution heat treatment followed by cold working and artificial aging**. This specific thermal-mechanical processing sequence results in a unique combination of **enhanced strength and improved dimensional stability**. The T83 temper is designed for applications requiring **higher mechanical properties than standard T6 temper** while maintaining good corrosion resistance and surface characteristics. --- #### **1. Chemical Composition (Weight %)** | Element | Minimum (%) | Maximum (%) | |---------|-------------|-------------| | Silicon (Si) | 0.20 | 0.60 | | Iron (Fe) | - | 0.35 | | Copper (Cu) | - | 0.10 | | Manganese (Mn) | - | 0.10 | | Magnesium (Mg) | 0.45 | 0.90 | | Chromium (Cr) | - | 0.10 | | Zinc (Zn) | - | 0.10 | | 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** | 615-655 °C | 1140-1210 °F | | **Electrical Conductivity** | 48-52% IACS | 48-52% IACS | | **Thermal Conductivity** | 170-185 W/m·K | 985-1070 BTU·in/(hr·ft²·°F) | | **Coefficient of Thermal Expansion** | 23.4 × 10⁻⁶/°C | 13.0 × 10⁻⁶/°F | | **Modulus of Elasticity** | 68.9 GPa | 10,000 ksi | --- #### **3. Mechanical Properties** **Typical Mechanical Properties for 6063-T83:** | Property | Metric Value | Imperial Value | |----------|--------------|----------------| | **Tensile Strength** | 235-265 MPa | 34-38 ksi | | **Yield Strength (0.2% Offset)** | 215-240 MPa | 31-35 ksi | | **Elongation (in 50mm)** | 6-10% | 6-10% | | **Hardness (Brinell)** | 85-95 HB | 85-95 HB | | **Shear Strength** | 150-170 MPa | 22-25 ksi | | **Fatigue Strength** | 95-110 MPa | 14-16 ksi | --- #### **4. International Standards** * **ASTM Standards:** * 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 * **European Standards (EN):** * EN 573-3: Chemical composition (Designation: EN AW-6063) * EN 755-2: Mechanical properties for extruded products * **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 --- #### **5. Product Applications** **High-Strength Structural Applications:** - Heavy-duty architectural structures - High-load structural frameworks - Building support columns and beams - Bridge components and structural elements **Transportation and Automotive:** - Automotive structural reinforcements - Truck and bus structural members - Railway vehicle structural components - Specialized transportation equipment **Industrial and Machinery:** - High-stress machinery components - Industrial equipment frames - Material handling system structures - Precision instrument components **Specialized Applications:** - Defense equipment components - High-performance sporting goods - Aerospace non-structural components - Specialized electrical conductors --- #### **6. Key Characteristics & Advantages** * **Enhanced Mechanical Properties:** Higher strength and hardness compared to T6 temper * **Improved Dimensional Stability:** Excellent for precision applications * **Good Stress Corrosion Resistance:** Suitable for demanding environments * **Superior Surface Quality:** Maintains excellent surface characteristics * **Good Fatigue Performance:** Enhanced resistance to cyclic loading * **Adequate Corrosion Resistance:** Maintains good atmospheric corrosion resistance * **Controlled Anisotropy:** Predictable mechanical properties in specific directions --- #### **7. Heat Treatment Process** **Solution Heat Treatment:** - Temperature: 515-525°C (960-980°F) - Time: Sufficient for complete solutionizing - Quenching: Controlled rapid cooling **Cold Working Process:** - Cold reduction: 5-15% (typical) - Methods: Stretching, drawing, or rolling - Controlled deformation process **Artificial Aging:** - Temperature: 175-185°C (347-365°F) - Time: 6-10 hours - Controlled cooling after aging --- #### **8. Processing and Fabrication** **Forming Characteristics:** - Limited formability due to higher strength - Suitable for minor straightening operations - Requires specialized forming techniques - Careful handling during fabrication essential **Machining Properties:** - Good machinability with proper tooling - Requires carbide tools for optimal results - Good surface finish achievable - Appropriate cooling and lubrication required **Joining Methods:** - Weldable using TIG and MIG methods - Requires proper welding procedures - Post-weld heat treatment may be necessary - Mechanical fastening preferred for critical applications **Surface Treatment Compatibility:** - Good for anodizing applications - Suitable for powder coating - Maintains surface quality after treatment - Chemical conversion coatings applicable --- #### **9. Quality Assurance** **Testing and Verification:** - Comprehensive mechanical testing - Chemical composition analysis - Microstructural examination - Non-destructive testing as required **Quality Documentation:** - Mill test certificates per international standards - Process control documentation - Traceability records - Compliance certificates Aluminum 6063-T83 represents a premium grade within the 6063 alloy system, offering enhanced mechanical properties for demanding applications. The specialized thermal-mechanical processing provides a unique combination of high strength and dimensional stability, making it suitable for applications where standard tempers cannot meet the performance requirements. While it offers reduced formability compared to softer tempers, its superior mechanical characteristics make it invaluable for high-performance structural and industrial applications.

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 2005 gallon liquid totes Special package is available on request.