6205-T5 Aluminum alloy,Aluminum 6205-T5 alloy,E FORU

### **Aluminum 6205-T5 Alloy: Product Introduction** **Overview** Aluminum 6205-T5 is a heat-treatable aluminum-magnesium-silicon alloy that has been cooled from an elevated temperature shaping process and artificially aged. This is one of the **most commonly used tempers** for 6205 aluminum, offering an **excellent balance of strength, extrudability, and corrosion resistance**. The T5 temper provides **good mechanical properties** while maintaining adequate formability for many applications, particularly in structural and architectural fields. --- #### **1. Chemical Composition (Weight %)** | Element | Minimum (%) | Maximum (%) | |---------|-------------|-------------| | Silicon (Si) | 0.6 | 1.0 | | Iron (Fe) | - | 0.35 | | Copper (Cu) | - | 0.20 | | Manganese (Mn) | 0.05 | 0.20 | | Magnesium (Mg) | 0.40 | 0.8 | | 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** | 2.71 g/cm³ | 0.0979 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** | 69.0 GPa | 10,007 ksi | --- #### **3. Mechanical Properties** **Typical Mechanical Properties for 6205-T5:** | Property | Metric Value | Imperial Value | |----------|--------------|----------------| | **Tensile Strength** | 240-280 MPa | 35-41 ksi | | **Yield Strength (0.2% Offset)** | 200-240 MPa | 29-35 ksi | | **Elongation (in 50mm)** | 10-14% | 10-14% | | **Hardness (Brinell)** | 80-90 HB | 80-90 HB | | **Shear Strength** | 160-190 MPa | 23-28 ksi | | **Fatigue Strength** | 100-120 MPa | 15-17 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 * 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** **Structural Applications:** - Bridge railings and components - Structural frameworks - Building structural elements - Support columns and beams **Transportation Industry:** - Truck and trailer structural members - Automotive structural components - Railway vehicle structures - Marine structural components **Architectural Applications:** - Structural glazing systems - Curtain wall mullions - Architectural structural members - Heavy-duty window and door frames **Industrial Equipment:** - Machinery frames and supports - Material handling equipment - Industrial automation components - Equipment structural members --- #### **6. Key Characteristics & Advantages** * **Good Strength-to-Weight Ratio:** Favorable mechanical properties with lightweight characteristics * **Excellent Extrudability:** Can be easily extruded into complex structural profiles * **Good Corrosion Resistance:** Excellent resistance to atmospheric corrosion * **Superior Surface Quality:** Provides excellent surface finish for architectural applications * **Good Weldability:** Can be welded using common methods including TIG and MIG * **Adequate Machinability:** Can be machined using standard equipment and techniques * **Cost-Effective:** Economical manufacturing process without separate solution treatment --- #### **7. Heat Treatment Process** **Artificial Aging Process:** - Temperature: 170-180°C (338-356°F) - Time: 4-8 hours - Cooling: Air cooling after aging **Key Processing Features:** - No separate solution heat treatment required - Aged directly after extrusion and cooling - Consistent and reproducible properties - Cost-effective manufacturing process --- #### **8. Processing and Fabrication** **Forming Characteristics:** - Suitable for moderate bending operations - Good for straightening and minor forming - Adequate for roll forming applications - Reasonable springback characteristics **Machining Properties:** - Good machinability with proper tooling - Produces reasonable surface finish - Suitable for drilling, milling, and turning - Requires appropriate cutting parameters **Joining Methods:** - Excellent weldability using TIG and MIG methods - Suitable for brazing and soldering - Good for adhesive bonding - Mechanical fastening easily accomplished **Surface Treatment Compatibility:** - Excellent for anodizing (clear and color) - Suitable for powder coating - Good for painting and lacquering - Ideal for chemical conversion coatings --- #### **9. Quality and Standards Compliance** **Typical Testing Requirements:** - Mechanical property verification - Chemical composition analysis - Surface quality inspection - Dimensional accuracy checks **Common Specifications:** - Meets ASTM B221 requirements - Complies with EN 755-2 standards - Suitable for structural quality applications - Available with mill test certificates --- **Technical Note:** Aluminum 6205-T5 represents a versatile and widely used temper for structural and architectural applications, providing an optimal combination of properties for extrusion-based structural products. The T5 temper offers a cost-effective manufacturing solution as it eliminates the need for separate solution heat treatment, making it particularly suitable for high-volume production of structural components, bridge elements, and architectural members where consistent quality and good performance are required. The alloy's balanced properties make it suitable for applications requiring higher strength than standard architectural alloys while maintaining good corrosion resistance and manufacturability.

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 2060 gallon liquid totes Special package is available on request.