6016A Aluminum alloy,Aluminum 6016A alloy,E FORU

### **Product Introduction: 6016A Aluminum Alloy** **6016A Aluminum Alloy** is an advanced, high-performance aluminum-magnesium-silicon (Al-Mg-Si) alloy specifically optimized for automotive body sheet applications. As an improved variant of standard 6016, this alloy offers an exceptional balance of formability, bake-hardening response, and surface quality, making it one of the preferred choices for modern automotive outer body panels, particularly in the European automotive industry. --- ### **1. International Standards** 6016A Aluminum Alloy is recognized under the following international standards: - **EN (European Norm):** EN AW-6016A - **AA (Aluminum Association, USA):** Modified AA 6016 composition - **VDA (German Association of the Automotive Industry):** VDA 239-100 - **ISO (International Organization for Standardization):** AlMg0.4Si - **ASTM:** ASTM B209 (Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate) --- ### **2. Chemical Composition** The chemical composition limits (in weight percentage) for EN AW-6016A are specified as follows: | Element | Content (%) | |:---------|:------------| | **Aluminum (Al)** | Balance | | **Silicon (Si)** | 1.0 - 1.5 | | **Magnesium (Mg)** | 0.25 - 0.6 | | **Manganese (Mn)** | ≤ 0.20 | | **Copper (Cu)** | ≤ 0.20 | | **Iron (Fe)** | ≤ 0.50 | | **Chromium (Cr)** | ≤ 0.20 | | **Zinc (Zn)** | ≤ 0.20 | | **Titanium (Ti)** | ≤ 0.15 | | **Others (each)** | ≤ 0.05 | | **Others (total)** | ≤ 0.15 | **Key Takeaway:** The higher silicon content (1.0-1.5%) combined with controlled magnesium levels provides excellent bake-hardening potential while maintaining superior formability. The low copper content ensures outstanding corrosion resistance. --- ### **3. Physical Properties** The typical physical properties of 6016A aluminum alloy are: | Property | Metric Value | Imperial Value | |:----------|:-------------|:---------------| | **Density** | 2.70 g/cm³ | 0.0975 lb/in³ | | **Melting Range** | 595 - 650 °C | 1103 - 1202 °F | | **Coefficient of Thermal Expansion** | 23.4 × 10⁻⁶/°C (20-100°C) | 13.0 × 10⁻⁶/°F (68-212°F) | | **Thermal Conductivity** | 170 - 190 W/m·K | 980 - 1100 BTU·in/(hr·ft²·°F) | | **Electrical Conductivity** | 44-48% IACS | 44-48% 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 requirements: **Temper: T4** (Solution heat-treated and naturally aged) - **Tensile Strength:** 160 - 210 MPa (23 - 30 ksi) - **Yield Strength (0.2% Offset):** 70 - 120 MPa (10 - 17 ksi) - **Elongation (% in 50mm):** 24-30% - **Strain-Hardening Exponent (n-value):** 0.24 - 0.28 - **Plastic Strain Ratio (r-value):** 0.65 - 0.80 **After Automotive Paint-Bake Cycle** (185°C/365°F for 20-30 minutes): - **Yield Strength Increase:** 80 - 120 MPa (12 - 17 ksi) - **Final Yield Strength:** 150 - 240 MPa (22 - 35 ksi) - **Final Tensile Strength:** 220 - 290 MPa (32 - 42 ksi) --- ### **5. Product Applications** 6016A is extensively used in modern automotive body construction: - **Automotive Outer Body Panels:** - Door outer panels (especially for complex designs) - Hood outer panels requiring excellent dent resistance - Fender panels with deep-drawn features - Roof panels and body side panels - **Automotive Closure Systems:** - Tailgate and liftgate panels - Hinge reinforcement areas - Complex closure panel assemblies - **Premium Automotive Applications:** - Luxury vehicle body panels - Electric vehicle body structures - High-end automotive exterior components - **Specific Use Cases:** - Applications requiring both deep-drawing and high surface quality - Components with severe forming requirements - Visible body panels demanding Class A surface finish --- ### **6. Key Characteristics & Advantages** - **Exceptional Formability:** Outstanding deep-drawing and stretch-forming capabilities, allowing for manufacturing of complex automotive panels with challenging geometries and reduced risk of splitting. - **Superior Bake-Hardening Response:** Excellent strength increase during automotive paint-bake cycles, providing good dent resistance for outer body panels while maintaining formability in T4 condition. - **Excellent Surface Quality:** Superior surface characteristics with minimal roping, streaking, or orange peel effect, making it ideal for Class A automotive body panels. - **Enhanced Hemming Performance:** Excellent edge-hemming characteristics with minimal risk of cracking, crucial for automotive closure panel assemblies. - **Good Corrosion Resistance:** The low copper content provides excellent resistance to atmospheric corrosion, suitable for automotive exterior applications. - **Consistent Mechanical Properties:** Tight control of composition and processing ensures reproducible behavior in high-volume automotive production. - **Weight Reduction Capability:** Enables significant mass reduction while meeting automotive structural and aesthetic requirements. --- ### **7. Processing Characteristics** **Heat Treatment Parameters:** - Solution Heat Treatment: 530-560°C (985-1040°F) - Quenching: Controlled cooling rate to optimize T4 properties - Natural Aging: Properties stabilize within 24-72 hours at room temperature - Paint-Bake Aging: Optimal response at 175-190°C (345-375°F) **Forming Guidelines:** - Excellent deep-drawing capability with drawing ratios up to 2.3 - Low springback characteristics for improved dimensional accuracy - Suitable for severe forming operations including complex geometries - Compatible with high-speed automated stamping processes **Surface Treatment:** - Excellent paint adhesion characteristics - Suitable for various pre-treatment processes - Good response to automotive E-coat systems - Maintains surface quality through entire painting process --- ### **8. Quality and Performance Standards** **Automotive Compliance:** - Meets VDA 239-100 standards for automotive sheet materials - Compliant with major European automotive OEM specifications - Suitable for safety-critical automotive applications **Surface Requirements:** - Excellent surface quality for exposed automotive panels - Low roping and streaking tendencies - Good paint adhesion characteristics - Suitable for high-gloss and metallic paint finishes --- ### **9. Comparative Advantages** **vs. Standard 6016:** - Improved consistency in mechanical properties - Enhanced surface quality - Better control of aging characteristics - More reliable in high-volume production **vs. 6014 Alloy:** - Superior bake-hardening response - Better surface quality - More consistent forming behavior - Higher strength after painting **vs. 6111 Alloy:** - Better formability and deep-drawing capability - Superior surface characteristics - More suitable for complex panel geometries - Better hemming performance --- ### **10. Manufacturing Benefits** **Production Efficiency:** - Reduced scrap rates due to excellent formability - Consistent performance in automated production lines - Minimal surface defects reducing rework requirements - Good compatibility with robotic handling systems **Cost Effectiveness:** - Competitive material cost - Reduced tooling wear due to good formability - Lower rejection rates in production - Efficient utilization in high-volume manufacturing In summary, **6016A Aluminum Alloy** represents a premium automotive body sheet material that delivers an optimal balance of formability, bake-hardening response, and surface quality. Its enhanced characteristics compared to standard 6016 make it particularly valuable for automotive manufacturers seeking to maximize weight reduction while ensuring excellent manufacturing reliability and superior final appearance in visible body panels, especially in the demanding European automotive market.

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 1962 gallon liquid totes Special package is available on request.