6015 Aluminum alloy,Aluminum 6015 alloy,E FORU

### **Product Introduction: 6015 Aluminum Alloy** **6015 Aluminum Alloy** is a heat-treatable aluminum-magnesium-silicon (Al-Mg-Si) alloy specifically designed for automotive body sheet applications. It offers a balanced combination of good formability, adequate bake-hardening response, and excellent surface quality, making it suitable for both inner and outer automotive body panels where consistent performance and manufacturing reliability are essential. --- ### **1. International Standards** 6015 Aluminum Alloy is recognized under the following international standards: - **AA (Aluminum Association, USA):** AA 6015 - **UNS (Unified Numbering System):** UNS A96015 - **EN (European Norm):** EN AW-6015 - **ISO (International Organization for Standardization):** AlMg0.5Si - **VDA (German Association of the Automotive Industry):** VDA 239-100 (Typical compliance) --- ### **2. Chemical Composition** The chemical composition limits (in weight percentage) are specified as follows: | Element | Content (%) | |:---------|:------------| | **Aluminum (Al)** | Balance | | **Silicon (Si)** | 0.40 - 0.8 | | **Magnesium (Mg)** | 0.30 - 0.6 | | **Manganese (Mn)** | 0.05 - 0.20 | | **Copper (Cu)** | ≤ 0.15 | | **Iron (Fe)** | ≤ 0.25 | | **Chromium (Cr)** | ≤ 0.10 | | **Zinc (Zn)** | ≤ 0.08 | | **Titanium (Ti)** | ≤ 0.08 | | **Others (each)** | ≤ 0.05 | | **Others (total)** | ≤ 0.15 | **Key Takeaway:** The carefully controlled chemistry with low copper and manganese content ensures excellent corrosion resistance and consistent formability. The balanced magnesium-silicon ratio provides reliable bake-hardening response while maintaining good weldability. --- ### **3. Physical Properties** The typical physical properties of 6015 aluminum alloy are: | Property | Metric Value | Imperial Value | |:----------|:-------------|:---------------| | **Density** | 2.70 g/cm³ | 0.0975 lb/in³ | | **Melting Range** | 615 - 650 °C | 1140 - 1202 °F | | **Coefficient of Thermal Expansion** | 23.4 × 10⁻⁶/°C (20-100°C) | 13.0 × 10⁻⁶/°F (68-212°F) | | **Thermal Conductivity** | 175 - 195 W/m·K | 1010 - 1130 BTU·in/(hr·ft²·°F) | | **Electrical Conductivity** | 46-50% IACS | 46-50% IACS | | **Modulus of Elasticity** | 69 GPa | 10,000 ksi | | **Shear Modulus** | 26 GPa | 3,770 ksi | --- ### **4. Mechanical Properties** Mechanical properties are optimized for automotive manufacturing processes: **Temper: T4** (Solution heat-treated and naturally aged) - **Tensile Strength:** 170 - 220 MPa (25 - 32 ksi) - **Yield Strength (0.2% Offset):** 80 - 130 MPa (12 - 19 ksi) - **Elongation (% in 50mm):** 22-28% - **Strain-Hardening Exponent (n-value):** 0.23 - 0.27 - **Plastic Strain Ratio (r-value):** 0.70 - 0.85 **After Standard Paint-Bake Cycle** (185°C/365°F for 20-30 minutes): - **Yield Strength Increase:** 60 - 90 MPa (9 - 13 ksi) - **Final Yield Strength:** 140 - 220 MPa (20 - 32 ksi) - **Final Tensile Strength:** 200 - 270 MPa (29 - 39 ksi) --- ### **5. Product Applications** 6015 Aluminum Alloy finds primary use in automotive body construction: - **Automotive Inner Panels:** - Door inner panels - Hood inner panels - Trunk lid inners - Body structural reinforcements - **Automotive Outer Panels:** - Roof panels - Body side panels - Non-critical outer panels - **General Automotive Applications:** - Bracket components - Reinforcement members - Non-structural body components - **Specific Use Cases:** - Applications requiring deep-drawing capability - Components with complex geometries - Parts where consistent formability is critical --- ### **6. Key Characteristics & Advantages** - **Excellent Deep-Drawing Capability:** Superior formability characteristics allowing for complex part geometries and deep-drawn components with minimal risk of splitting or cracking. - **Consistent Mechanical Properties:** Highly reproducible behavior in high-volume production environments, ensuring reliable manufacturing performance. - **Good Surface Quality:** Excellent surface characteristics with minimal roping or streaking, suitable for both painted and unpainted applications. - **Superior Corrosion Resistance:** The low copper and controlled chemistry provides excellent resistance to atmospheric corrosion, making it suitable for automotive applications. - **Excellent Weldability:** Can be readily spot-welded, MIG welded, and laser welded using standard automotive welding parameters. - **Good Hemming Performance:** Reliable edge-hemming characteristics suitable for closure panel assemblies. - **Cost-Effective Production:** Consistent performance reduces scrap rates and improves manufacturing efficiency. --- ### **7. Processing Characteristics** **Heat Treatment Parameters:** - Solution Heat Treatment: 530-550°C (985-1020°F) - Quenching: Controlled cooling rate optimization - Natural Aging: Stable T4 properties achieved within 24-48 hours - Paint-Bake Response: Effective at standard automotive curing temperatures **Forming Characteristics:** - Excellent deep-drawing capability with drawing ratios up to 2.4 - Low springback for improved dimensional accuracy - Consistent performance across different production batches - Suitable for high-speed stamping operations **Joining Capabilities:** - Excellent spot weldability with consistent nugget formation - Compatible with self-piercing rivets (SPR) - Good performance in adhesive bonding applications - Suitable for mechanical fastening methods --- ### **8. Comparative Analysis** **vs. 6014 Alloy:** - Better deep-drawing capability - More consistent mechanical properties - Superior surface quality - Slightly lower strength but more reliable formability **vs. 6016 Alloy:** - Enhanced formability - Better consistency in production - More suitable for complex deep-drawn parts - Similar corrosion performance **vs. 6022 Alloy:** - Superior deep-drawing characteristics - Better surface quality - More forgiving in severe forming operations - Lower strength but improved manufacturability --- ### **9. Automotive Manufacturing Benefits** **Production Efficiency:** - Reduced setup time and adjustments - Consistent behavior in automated production lines - Minimal requirement for process parameter optimization - High production yield rates **Quality Assurance:** - Consistent mechanical properties lot-to-lot - Predictable aging behavior - Reliable performance in high-volume production - Meets automotive OEM quality standards **Cost Considerations:** - Competitive material cost - Reduced scrap and rework costs - Lower tooling maintenance requirements - Efficient material utilization --- ### **10. Performance in Service** **Durability Characteristics:** - Adequate dent resistance for intended applications - Good fatigue performance for body panel applications - Maintains dimensional stability in service - Resistant to automotive environmental exposure **Corrosion Performance:** - Excellent resistance to road salt exposure - Good performance in humid environments - Suitable for unpainted interior applications - Compatible with automotive corrosion protection systems --- ### **Summary** **6015 Aluminum Alloy** represents a well-balanced automotive body sheet material that prioritizes manufacturing reliability and consistent performance. Its optimized chemistry and processing characteristics make it particularly valuable for automotive applications where deep-drawing capability, consistent behavior in high-volume production, and excellent surface quality are paramount. While offering slightly lower strength compared to some other 6000-series alloys, 6015 provides superior formability and manufacturing consistency, making it an excellent choice for complex automotive body panels and components where reliable production performance is essential.

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 1961 gallon liquid totes Special package is available on request.