6063-T835 Aluminum alloy,Aluminum 6063-T835 alloy,E FORU

### **Aluminum 6063-T835 Alloy: Product Introduction** **Overview** Aluminum 6063-T835 is a specialized high-strength temper of the 6063 aluminum-magnesium-silicon alloy that has undergone **solution heat treatment, significant cold working, and artificial aging**. This advanced thermal-mechanical processing sequence is designed to achieve **maximum practical strength** within the 6063 alloy system while maintaining adequate corrosion resistance. The T835 condition represents one of the **highest strength variants** available in the 6063 series, offering exceptional mechanical properties for the most demanding structural applications. --- #### **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** | 44-48% IACS | 44-48% IACS | | **Thermal Conductivity** | 155-170 W/m·K | 900-985 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-T835:** | Property | Metric Value | Imperial Value | |----------|--------------|----------------| | **Tensile Strength** | 260-300 MPa | 38-44 ksi | | **Yield Strength (0.2% Offset)** | 240-280 MPa | 35-41 ksi | | **Elongation (in 50mm)** | 3-6% | 3-6% | | **Hardness (Brinell)** | 95-105 HB | 95-105 HB | | **Shear Strength** | 165-190 MPa | 24-28 ksi | | **Fatigue Strength** | 105-125 MPa | 15-18 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** **Critical Structural Applications:** - High-stress architectural structures - Heavy-load structural frameworks - Bridge and infrastructure components - Building safety systems **Aerospace and Defense:** - Aircraft structural components (non-primary) - Missile and defense system structures - Military vehicle components - Satellite support structures **Transportation Industry:** - High-performance automotive frames - Racing vehicle components - Heavy truck structural members - Railway critical components **Industrial Applications:** - High-stress machinery components - Industrial press frames - Heavy equipment structures - Specialized tooling components --- #### **6. Key Characteristics & Advantages** * **Maximum Strength Capability:** Highest practical strength in 6063 alloy system * **Enhanced Stress Corrosion Resistance:** Superior performance in corrosive environments * **Excellent Fatigue Performance:** Outstanding resistance to cyclic loading * **Good Thermal Stability:** Maintains properties at elevated temperatures * **Superior Hardness:** Enhanced wear resistance * **Controlled Mechanical Properties:** Predictable performance characteristics * **Adequate Corrosion Resistance:** Maintains aluminum's corrosion resistance --- #### **7. Heat Treatment Process** **Solution Heat Treatment:** - Temperature: 515-525°C (960-980°F) - Time: Precisely controlled for optimal solutionizing - Quenching: Rapid controlled quenching **Cold Working Process:** - Method: Significant cold reduction - Reduction: 12-20% typical - Control: Precision deformation monitoring **Artificial Aging:** - Temperature: 175-185°C (347-365°F) - Time: 8-12 hours - Monitoring: Continuous process control --- #### **8. Processing and Fabrication** **Machining Characteristics:** - Requires specialized tooling and techniques - Carbide tools essential for optimal performance - Good surface finish with proper parameters - Adequate cooling and lubrication critical **Forming Limitations:** - Very limited formability - Minor straightening only with specialized equipment - Not suitable for bending or significant forming - High springback characteristics **Joining Methods:** - Limited weldability, requires specialized procedures - Post-weld heat treatment essential - Mechanical fastening preferred - Adhesive bonding suitable for some applications **Surface Treatment:** - Anodizing possible with proper procedures - Powder coating applicable - Surface preparation critical - Maintains integrity with proper treatment --- #### **9. Quality Assurance** **Testing Requirements:** - Extensive mechanical property testing - Complete chemical analysis - Comprehensive microstructural examination - Advanced non-destructive testing - Stress corrosion testing **Documentation and Certification:** - Full mill test certification - Detailed process control records - Complete traceability documentation - Third-party verification available - Compliance with industry specifications --- **Technical Note:** Aluminum 6063-T835 represents the pinnacle of strength development within the 6063 alloy system. The extensive cold working combined with precise thermal processing creates a material with exceptional mechanical properties suitable for the most demanding applications. While this temper offers minimal formability and requires specialized fabrication techniques, it provides unmatched strength characteristics for a 6063 alloy. The T835 condition is particularly valuable for applications where maximum strength-to-weight ratio is critical and where component design can accommodate the material's limited workability. This temper should be specified for applications where performance requirements exceed the capabilities of standard T6 or other conventional tempers.

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 2008 gallon liquid totes Special package is available on request.