6305 Aluminum alloy,Aluminum 6305 alloy,E FORU

### **Aluminum 6305 Alloy (EN AW-6305) - Product Introduction** **Aluminum 6305** is a heat-treatable aluminum-magnesium-silicon (Al-Mg-Si) alloy specifically designed for structural applications requiring excellent extrudability, good strength, and corrosion resistance. This alloy belongs to the 6xxx series and is characterized by its balanced composition that provides optimal performance in extruded profiles and welded structures, making it particularly suitable for architectural and transportation applications. --- #### **1. Chemical Composition** The chemical composition is formulated to ensure good extrudability and mechanical properties: | Element | Content (%) (Typical) | Standard Range (EN) | |---|---|---| | **Aluminum (Al)** | Balance | Balance | | **Magnesium (Mg)** | 0.40 - 0.9 | 0.40 - 0.9 | | **Silicon (Si)** | 0.60 - 1.1 | 0.60 - 1.1 | | **Iron (Fe)** | ≤ 0.35 | ≤ 0.35 | | **Copper (Cu)** | ≤ 0.30 | ≤ 0.30 | | **Manganese (Mn)** | 0.10 - 0.50 | 0.10 - 0.50 | | **Chromium (Cr)** | ≤ 0.30 | ≤ 0.30 | | **Zinc (Zn)** | ≤ 0.20 | ≤ 0.20 | | **Titanium (Ti)** | ≤ 0.10 | ≤ 0.10 | | **Others (Each)** | ≤ 0.05 | ≤ 0.05 | | **Others (Total)** | ≤ 0.15 | ≤ 0.15 | *The balanced Mg and Si content (forming Mg₂Si precipitates) provides the basis for age-hardening, while controlled Mn and Cr additions enhance strength.* --- #### **2. Physical Properties** Aluminum 6305 exhibits typical aluminum characteristics with good structural performance: | Property | Metric Value | Imperial Value | |---|---|---| | **Density** | 2.70 g/cm³ | 0.0975 lb/in³ | | **Melting Range** | 580 - 650 °C | 1076 - 1202 °F | | **Electrical Conductivity** | 45-50 % IACS (T5 Temper) | 45-50 % IACS | | **Thermal Conductivity** | 170-190 W/m·K | 1180-1320 BTU·in/(hr·ft²·°F) | | **Coefficient of Thermal Expansion** | 23.6 × 10⁻⁶/K | 13.1 × 10⁻⁶/°F | | **Modulus of Elasticity** | 69 GPa | 10,000 ksi | --- #### **3. Mechanical Properties** Typical mechanical properties for common tempers: | Temper | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | |---|---|---|---| | **T1 (Cooled from Extrusion & Naturally Aged)** | 180-230 | 100-150 | 16-20 | | **T5 (Cooled from Extrusion & Artificially Aged)** | 240-290 | 200-250 | 10-14 | | **T6 (Solution Heat Treated & Artificially Aged)** | 270-320 | 240-290 | 8-12 | --- #### **4. International Standards** Aluminum 6305 is recognized in the following international standards: * **European Standard (EN):** **EN AW-6305** (Material Number 3.0505) * **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 * **National Equivalents:** Various national standards including DIN (Germany) and BS (UK) --- #### **5. Product Applications** Aluminum 6305 is widely used in structural and architectural applications: * **Architectural Profiles:** Window frames, door frames, curtain walls, and structural glazing * **Transportation Structures:** Railway car body sections, truck trailer frames * **Marine Applications:** Ship railings, marine structures, and boat components * **Bridge Railings:** Highway and pedestrian bridge components * **Industrial Structures:** Framework for machinery guards, work platforms * **Welded Structures:** Components requiring good weldability and post-weld strength * **Scaffolding Systems:** Lightweight temporary support structures --- #### **6. Key Advantages & Characteristics** * **Excellent Extrudability:** Can be extruded into complex profiles with good surface finish * **Good Mechanical Strength:** Adequate strength for structural applications after aging * **Corrosion Resistance:** Good resistance to atmospheric and marine environments * **Weldability:** Can be readily welded using common techniques (MIG, TIG) * **Anodizing Response:** Responds well to anodizing for decorative and protective finishes * **Formability:** Good bending and forming characteristics in appropriate tempers * **Recyclability:** Fully recyclable without degradation of properties * **Cost-Effective:** Balanced performance for general structural applications **Conclusion:** Aluminum 6305 is a versatile structural alloy that offers an excellent balance of extrudability, mechanical properties, and corrosion resistance. Its compliance with European standards and suitability for a wide range of architectural and transportation applications make it a popular choice for extruded profiles in construction and industrial sectors. The alloy's combination of performance characteristics and manufacturing flexibility ensures its continued use in quality structural components worldwide.

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 2071 gallon liquid totes Special package is available on request.