6463-O Aluminum alloy,Aluminum 6463-O alloy，E FORU

### **Aluminum 6463-O Alloy (EN AW-6463-O) - Product Introduction** **Aluminum 6463-O** is the annealed temper of the 6463 aluminum-magnesium-silicon alloy, characterized by its maximum softness and formability. The "O" temper designation indicates that the material has been fully annealed to achieve the softest possible condition, making it ideal for applications requiring severe forming, bending, or drawing operations while maintaining excellent potential for subsequent heat treatment and anodizing. --- #### **1. Chemical Composition** The chemical composition maintains the same high purity as standard 6463 alloy: | Element | Content (%) (Typical) | Standard Range (EN 573-3) | |---|---|---| | **Aluminum (Al)** | Balance | Balance | | **Magnesium (Mg)** | 0.30 - 0.6 | 0.30 - 0.6 | | **Silicon (Si)** | 0.20 - 0.6 | 0.20 - 0.6 | | **Iron (Fe)** | ≤ 0.15 | ≤ 0.15 | | **Copper (Cu)** | ≤ 0.05 | ≤ 0.05 | | **Manganese (Mn)** | ≤ 0.05 | ≤ 0.05 | | **Chromium (Cr)** | ≤ 0.03 | ≤ 0.03 | | **Zinc (Zn)** | ≤ 0.05 | ≤ 0.05 | | **Titanium (Ti)** | ≤ 0.05 | ≤ 0.05 | | **Others (Each)** | ≤ 0.03 | ≤ 0.03 | | **Others (Total)** | ≤ 0.10 | ≤ 0.10 | *The low impurity content ensures excellent anodizing quality after subsequent heat treatment.* --- #### **2. Physical Properties** Aluminum 6463-O exhibits typical aluminum characteristics in annealed condition: | Property | Metric Value | Imperial Value | |---|---|---| | **Density** | 2.70 g/cm³ | 0.0975 lb/in³ | | **Melting Range** | 615 - 655 °C | 1140 - 1210 °F | | **Electrical Conductivity** | 52-57 % IACS | 52-57 % IACS | | **Thermal Conductivity** | 195-210 W/m·K | 1350-1460 BTU·in/(hr·ft²·°F) | | **Coefficient of Thermal Expansion** | 23.3 × 10⁻⁶/K | 12.9 × 10⁻⁶/°F | | **Modulus of Elasticity** | 69 GPa | 10,000 ksi | | **Shear Modulus** | 26 GPa | 3,770 ksi | --- #### **3. Mechanical Properties** The O temper provides maximum ductility with minimum strength: | Property | Metric Value | Imperial Value | |---|---|---| | **Tensile Strength, Ultimate** | 90-120 MPa | 13,000-17,400 psi | | **Tensile Strength, Yield (0.2% Offset)** | 40-70 MPa | 5,800-10,200 psi | | **Elongation in 50mm** | 22-28% | 22-28% | | **Hardness (Brinell)** | 25-35 HB | 25-35 HB | | **Shear Strength** | 75 MPa | 10,900 psi | | **Fatigue Strength** | 50 MPa | 7,250 psi | | **Poisson's Ratio** | 0.33 | 0.33 | --- #### **4. International Standards** Aluminum 6463-O conforms to the following international standards: * **European Standard (EN):** **EN AW-6463** (Material Number 3.1206) * **ISO:** **AlMgSi** under ISO 209 * **EN 755:** Aluminum and aluminum alloy extruded rod/bar, tube and profiles * **EN 13957:** Aluminum and aluminum alloys - Extruded round, coiled and drawn wire * **EN 12020:** Aluminum and aluminum alloys - Extruded precision profiles * **ASTM:** **ASTM B221** for Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes * **QUALANOD:** Suitable for anodizing after heat treatment * **National Equivalents:** DIN 3.1206 (Germany), BS (UK) --- #### **5. Product Applications** Aluminum 6463-O is specifically used for applications requiring severe forming: * **Complex Formed Parts:** Components requiring deep drawing or severe bending * **Architectural Elements:** Intricate decorative trim and moldings * **Heat Exchanger Components:** Tubes and fins requiring forming * **Lighting Reflectors:** Reflector sheets requiring shaping and forming * **Electronic Enclosures:** Complex-shaped housings and covers * **Display Systems:** Formed display components and fixtures * **Prototype Development:** Parts requiring easy formability for prototyping * **Art and Sculpture:** Decorative pieces requiring extensive forming --- #### **6. Key Advantages & Characteristics** * **Maximum Formability:** Excellent for severe bending and forming operations * **Superior Ductility:** Highest elongation characteristics in the 6463 alloy system * **Good Surface Quality:** Maintains excellent surface characteristics for anodizing * **Annealing Stability:** Consistent properties throughout the material * **Workability:** Easy to cut, form, and shape with minimal springback * **Heat Treatable:** Can be subsequently heat treated to T5 or T6 tempers * **Weldability:** Good welding characteristics in annealed condition * **Machinability:** Good machining properties with proper tooling **Annealing Process:** - Annealing temperature: 345°C (650°F) - Soaking time: 2-3 hours - Controlled cooling rate - Uniform properties throughout cross-section **Forming Characteristics:** - Minimum bend radius: 0-1T (depending on thickness) - Excellent for deep drawing operations - Low springback characteristics - Suitable for complex forming operations **Subsequent Heat Treatment:** - Can be aged to T1 temper after forming - Can be solution heat treated and aged to T5/T6 - Maintains good response to artificial aging - Suitable for complete T4 to T6 heat treatment cycle --- **Processing Recommendations:** - Store in dry conditions to prevent surface contamination - Handle with care to avoid surface scratches - Clean surfaces thoroughly before heat treatment - Use proper tooling to avoid galling during forming **Conclusion:** Aluminum 6463-O offers the ultimate in formability and workability within the 6463 alloy system, making it the preferred choice for applications requiring severe forming operations. Its ability to be subsequently heat treated to higher strength tempers while maintaining excellent anodizing characteristics provides manufacturers with exceptional flexibility in production processes. The alloy's combination of maximum ductility, good surface quality, and heat treatability makes it invaluable for complex formed components across architectural, electronic, and decorative 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 2083 gallon liquid totes Special package is available on request.