6061-T913 Aluminum alloy,Aluminum 6061-T913 alloy,E FORU

### **Aluminum 6061-T913 Alloy: Product Introduction** **Overview** Aluminum 6061-T913 is a specialized temper variant of the widely used 6061 aluminum-magnesium-silicon alloy. This specific temper designation indicates a **controlled sequence of thermal and mechanical treatments** that result in enhanced mechanical properties and improved performance characteristics. The T913 temper is designed to provide **superior strength characteristics and enhanced stress corrosion resistance** for demanding applications where conventional tempers may not suffice. --- #### **1. Chemical Composition (Weight %)** | Element | Minimum (%) | Maximum (%) | |---------|-------------|-------------| | Silicon (Si) | 0.40 | 0.8 | | Iron (Fe) | - | 0.7 | | Copper (Cu) | 0.15 | 0.40 | | Manganese (Mn) | - | 0.15 | | Magnesium (Mg) | 0.8 | 1.2 | | Chromium (Cr) | 0.04 | 0.35 | | Zinc (Zn) | - | 0.25 | | Titanium (Ti) | - | 0.15 | | 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 | 1075-1200 °F | | **Electrical Conductivity** | 40-44% IACS | 40-44% IACS | | **Thermal Conductivity** | 155-165 W/m·K | 900-957 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 6061-T913:** | Property | Metric Value | Imperial Value | |----------|--------------|----------------| | **Tensile Strength** | 330-350 MPa | 48-51 ksi | | **Yield Strength (0.2% Offset)** | 300-320 MPa | 44-47 ksi | | **Elongation (in 50mm)** | 4-7% | 4-7% | | **Hardness (Brinell)** | 104-110 HB | 104-110 HB | | **Shear Strength** | 225-240 MPa | 33-35 ksi | | **Fatigue Strength** | 107-113 MPa | 15.5-16.5 ksi | | **Fracture Toughness** | 28-32 MPa·√m | 25-29 ksi·√in | --- #### **4. International Standards** * **ASTM Standards:** * ASTM B209: Aluminum and Aluminum-Alloy Sheet and Plate * ASTM B211: Aluminum and Aluminum-Alloy Bar, Rod, and Wire * ASTM B221: Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes * **Aerospace Material Specifications:** * AMS 4120: 6061-T913 Sheet and Plate * AMS 4340: 6061-T913 Extruded Shapes * **International Standards:** * ISO 6361-2: Wrought Aluminum and Aluminum-Alloy Sheets, Strips and Plates * ISO 6362-2: Wrought Aluminum and Aluminum-Alloy Extruded Rods/Bar, Tubes and Profiles --- #### **5. Product Applications** **Aerospace & Defense:** - Aircraft structural reinforcements - Missile body sections - Satellite structural members - Military vehicle armor components **High-Performance Automotive:** - Racing chassis reinforcements - High-stress suspension mounts - Performance engine components - Safety cage reinforcements **Specialized Industrial:** - High-pressure vessel components - Precision machine tool structures - Heavy-duty robotic arms - Specialized processing equipment **Marine & Offshore:** - Subsea equipment housings - High-performance marine structures - Offshore platform reinforcements - Specialized naval components --- #### **6. Key Characteristics & Advantages** * **Enhanced Strength Properties:** Superior yield and tensile strength compared to standard T6 temper * **Improved Stress Corrosion Cracking Resistance:** Enhanced performance in corrosive environments * **Excellent Thermal Stability:** Maintains properties at elevated temperatures * **Superior Fatigue Performance:** Enhanced resistance to cyclic loading conditions * **Good Dimensional Stability:** Minimal distortion under load and temperature variations * **Enhanced Fracture Toughness:** Improved resistance to crack propagation * **Controlled Anisotropy:** Predictable directional properties --- #### **7. Processing & Heat Treatment** **Thermal-Mechanical Processing Sequence:** 1. **Solution Heat Treatment:** 530°C ± 5°C (985°F ± 9°F) 2. **Controlled Quenching:** Precision cooling rate control 3. **Artificial Aging:** Multi-stage aging process 4. **Mechanical Working:** Controlled cold working (2-4% strain) 5. **Stabilization:** Final thermal stabilization treatment **Quality Assurance Requirements:** - Strict process parameter control - Comprehensive mechanical testing - Microstructural examination - Non-destructive testing requirements --- #### **8. Special Considerations** **Machining Guidelines:** - Requires rigid tooling and adequate cooling - Recommended carbide tooling for optimal results - Proper chip evacuation essential - Conservative feeds and speeds recommended **Welding Considerations:** - Gas tungsten arc welding (GTAW) preferred - Post-weld heat treatment may be required - Filler metal selection critical - Requires qualified welding procedures **Corrosion Protection:** - Good inherent corrosion resistance - Anodizing recommended for severe environments - Chemical conversion coatings applicable - Regular maintenance advised in corrosive service The 6061-T913 temper represents a premium grade of aluminum alloy designed for the most demanding applications where conventional tempers cannot meet the rigorous performance requirements. Its specialized processing ensures consistent, high-performance characteristics for critical 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 1998 gallon liquid totes Special package is available on request.