6070-T6 Aluminum alloy,Aluminum 6070-T6 alloy,E FORU

### **Aluminum 6070-T6 Alloy: Product Introduction** **Overview** Aluminum 6070-T6 is a high-strength aluminum-magnesium-silicon alloy supplied in the solution heat-treated and artificially aged condition. This temper represents the **peak strength condition** for the 6070 alloy, offering **exceptional mechanical properties** combined with good corrosion resistance and structural integrity. The T6 treatment provides the **maximum practical strength** for this alloy system, making it ideal for demanding structural applications where high strength-to-weight ratio is critical. --- #### **1. Chemical Composition (Weight %)** | Element | Minimum (%) | Maximum (%) | |---------|-------------|-------------| | Silicon (Si) | 1.0 | 1.7 | | Iron (Fe) | - | 0.50 | | Copper (Cu) | 0.15 | 0.40 | | Manganese (Mn) | 0.40 | 1.0 | | Magnesium (Mg) | 0.50 | 1.2 | | Chromium (Cr) | 0.10 | 0.30 | | 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** | 2.71 g/cm³ | 0.0979 lb/in³ | | **Melting Range** | 555-650 °C | 1031-1202 °F | | **Electrical Conductivity** | 40-44% IACS | 40-44% 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** | 69.0 GPa | 10,007 ksi | --- #### **3. Mechanical Properties** **Typical Mechanical Properties for 6070-T6:** | Property | Metric Value | Imperial Value | |----------|--------------|----------------| | **Tensile Strength** | 380-420 MPa | 55-61 ksi | | **Yield Strength (0.2% Offset)** | 350-380 MPa | 51-55 ksi | | **Elongation (in 50mm)** | 8-12% | 8-12% | | **Hardness (Brinell)** | 100-110 HB | 100-110 HB | | **Shear Strength** | 230-250 MPa | 33-36 ksi | | **Fatigue Strength** | 130-150 MPa | 19-22 ksi | | **Compressive Yield Strength** | 350-380 MPa | 51-55 ksi | --- #### **4. International Standards** * **ASTM Standards:** * ASTM B221: Standard Specification for Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes * ASTM B211: Standard Specification for Aluminum and Aluminum-Alloy Bar, Rod, and Wire * **European Standards (EN):** * EN 573-3: Chemical composition * 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** **Transportation and Automotive:** - Heavy truck frame components - Trailer structural members - Bus chassis and frame elements - Railway vehicle structural components **Aerospace and Defense:** - Aircraft structural components - Missile structural elements - Military vehicle frames - Defense equipment structures **Construction and Infrastructure:** - Bridge structural components - Building structural elements - Heavy structural frameworks - Support columns and beams **Industrial and Heavy Equipment:** - Crane and lifting equipment components - Mining machinery structures - Heavy press frames - Industrial robot structural members --- #### **6. Key Characteristics & Advantages** * **Exceptional Strength-to-Weight Ratio:** Superior mechanical properties with lightweight aluminum characteristics * **High Static Strength:** Excellent load-bearing capacity for structural applications * **Good Fatigue Resistance:** Suitable for dynamic loading applications * **Adequate Corrosion Resistance:** Maintains reasonable corrosion resistance despite high strength * **Good Weldability:** Can be welded using proper procedures and techniques * **Excellent Machinability:** Good machining characteristics in T6 condition * **Structural Efficiency:** Ideal for weight-critical structural applications --- #### **7. Heat Treatment Process** **Solution Heat Treatment:** - Temperature: 530-545°C (986-1013°F) - Time: 30-60 minutes depending on thickness - Quenching: Rapid water quenching **Artificial Aging Process:** - Temperature: 160-175°C (320-347°F) - Time: 8-12 hours - Cooling: Air cooling to room temperature --- #### **8. Processing and Fabrication** **Machining Characteristics:** - Good machinability with carbide tooling - Requires appropriate cutting parameters - Good surface finish achievable - Suitable for precision machining operations **Forming Limitations:** - Limited formability in T6 condition - Suitable only for minor straightening operations - Specialized equipment required for any forming - High springback characteristics **Joining Methods:** - Weldable using TIG and MIG methods - Requires qualified welding procedures - Post-weld heat treatment recommended for critical applications - Mechanical fastening preferred **Surface Treatment Compatibility:** - Good for anodizing applications - Suitable for powder coating - Chemical conversion coatings applicable - Good paint adhesion characteristics --- #### **9. Quality Assurance** **Testing Requirements:** - Comprehensive mechanical property testing - Chemical composition analysis - Microstructural examination - Non-destructive testing as required **Certification:** - Mill test certificates per international standards - Process control documentation - Full traceability records - Third-party inspection available --- **Technical Note:** Aluminum 6070-T6 represents one of the highest strength variants in the 6xxx series aluminum alloys, offering mechanical properties that approach some lower-grade 2xxx series alloys while maintaining better corrosion resistance and weldability. The optimized chemical composition, with enhanced silicon and manganese content, provides the foundation for exceptional strength characteristics through proper heat treatment. This alloy is particularly valuable for heavy structural applications in transportation, construction, and industrial equipment where maximum strength-to-weight ratio is essential. While it offers limited formability in the T6 condition, its superior mechanical properties make it an excellent choice for applications where high strength and structural efficiency are paramount considerations.

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 2022 gallon liquid totes Special package is available on request.