6014 Aluminum alloy,Aluminum 6014 alloy,E FORU

### **Product Introduction: 6014 Aluminum Alloy** **6014 Aluminum Alloy** is a heat-treatable aluminum-magnesium-silicon (Al-Mg-Si) alloy specifically developed for automotive body sheet applications. It offers an excellent balance of formability, strength after paint-bake hardening, and surface quality, making it particularly suitable for automotive outer body panels where dent resistance and aesthetic appearance are critical requirements. --- ### **1. International Standards** 6014 Aluminum Alloy is recognized under the following international standards: - **AA (Aluminum Association, USA):** AA 6014 - **UNS (Unified Numbering System):** UNS A96014 - **EN (European Norm):** EN AW-6014 - **ISO (International Organization for Standardization):** AlMg0.4Si - **VDA (German Association of the Automotive Industry):** VDA 239-100 --- ### **2. Chemical Composition** The chemical composition limits (in weight percentage) are specified as follows: | Element | Content (%) | |:---------|:------------| | **Aluminum (Al)** | Balance | | **Silicon (Si)** | 0.30 - 0.7 | | **Magnesium (Mg)** | 0.30 - 0.6 | | **Manganese (Mn)** | 0.10 - 0.4 | | **Copper (Cu)** | ≤ 0.25 | | **Iron (Fe)** | ≤ 0.30 | | **Chromium (Cr)** | ≤ 0.20 | | **Zinc (Zn)** | ≤ 0.10 | | **Titanium (Ti)** | ≤ 0.10 | | **Others (each)** | ≤ 0.05 | | **Others (total)** | ≤ 0.15 | **Key Takeaway:** The relatively low magnesium and silicon content compared to other 6000-series automotive alloys provides enhanced formability while maintaining adequate bake-hardening response. The controlled copper content ensures good corrosion resistance. --- ### **3. Physical Properties** The typical physical properties of 6014 aluminum alloy are: | Property | Metric Value | Imperial Value | |:----------|:-------------|:---------------| | **Density** | 2.70 g/cm³ | 0.0975 lb/in³ | | **Melting Range** | 615 - 655 °C | 1140 - 1210 °F | | **Coefficient of Thermal Expansion** | 23.4 × 10⁻⁶/°C (20-100°C) | 13.0 × 10⁻⁶/°F (68-212°F) | | **Thermal Conductivity** | 180 - 200 W/m·K | 1040 - 1155 BTU·in/(hr·ft²·°F) | | **Electrical Conductivity** | 48-52% IACS | 48-52% IACS | | **Modulus of Elasticity** | 69 GPa | 10,000 ksi | | **Shear Modulus** | 26 GPa | 3,770 ksi | --- ### **4. Mechanical Properties** Mechanical properties vary with temper condition, optimized for automotive forming: **Temper: T4** (Solution heat-treated and naturally aged) - **Tensile Strength:** 180 - 230 MPa (26 - 33 ksi) - **Yield Strength (0.2% Offset):** 90 - 140 MPa (13 - 20 ksi) - **Elongation (% in 50mm):** 20-26% - **Strain-Hardening Exponent (n-value):** 0.22 - 0.26 - **Plastic Strain Ratio (r-value):** 0.65 - 0.80 **After Paint-Bake Cycle** (185°C/365°F for 20-30 minutes): - **Yield Strength Increase:** 70 - 100 MPa (10 - 15 ksi) - **Final Yield Strength:** 160 - 240 MPa (23 - 35 ksi) - **Final Tensile Strength:** 220 - 290 MPa (32 - 42 ksi) --- ### **5. Product Applications** 6014 Aluminum Alloy is primarily used in automotive body panel applications: - **Automotive Outer Body Panels:** - Door outer panels - Hood outer panels - Trunk lids and deck lids - Fender panels - Roof panels - **Automotive Applications Requiring:** - Excellent surface quality for Class A surfaces - Good dent resistance - Complex forming operations - High aesthetic appearance after painting - **Specific Automotive Uses:** - Visible body panels requiring minimal surface distortion - Panels with complex curvature and deep draws - Components where formability is prioritized over maximum strength --- ### **6. Key Characteristics & Advantages** - **Excellent Formability:** Superior deep-drawing and stretch-forming capabilities compared to higher-strength 6000-series alloys, allowing for manufacturing of complex automotive panels with reduced risk of splitting. - **Good Surface Quality:** Excellent surface characteristics suitable for Class A automotive body panels with minimal roping or streaking tendencies. - **Adequate Bake-Hardening Response:** Provides sufficient strength increase during automotive paint-bake cycles to meet dent resistance requirements for outer body panels. - **Superior Hemming Performance:** Excellent edge-hemming characteristics with minimal risk of cracking or surface defects. - **Good Corrosion Resistance:** The low copper content provides good resistance to atmospheric corrosion, suitable for automotive applications. - **Weight Reduction:** Enables significant weight savings compared to steel while maintaining required performance characteristics. - **Consistent Performance:** Reliable and predictable behavior in high-volume automotive production environments. --- ### **7. Processing Characteristics** **Heat Treatment Parameters:** - Solution Heat Treatment: 530-550°C (985-1020°F) - Quenching: Controlled cooling to optimize T4 properties - Natural Aging: Properties stabilize within 24-72 hours at room temperature - Paint-Bake Aging: Effective response at standard automotive paint-bake temperatures (165-190°C) **Forming Guidelines:** - Excellent formability in T4 temper condition - Suitable for deep-drawing operations with drawing ratios up to 2.3 - Low springback characteristics for improved dimensional accuracy - Compatible with all standard automotive stamping lubricants and processes **Surface Treatment:** - Excellent paint adhesion characteristics - Suitable for various pre-treatment processes (phosphating, chromating) - Good response to automotive E-coat systems - Maintains surface quality through entire painting process --- ### **8. Comparative Advantages** **vs. 6016 Alloy:** - Slightly higher strength after baking - Better dent resistance - Maintains excellent formability **vs. 6011 Alloy:** - Better surface quality - Superior formability - More suitable for outer body panels **vs. 6022 Alloy:** - Enhanced formability - Better surface characteristics - More forgiving in severe forming operations **vs. 6111 Alloy:** - Superior formability - Better surface quality - Lower strength but more consistent in production --- ### **9. Automotive Performance** **Dent Resistance:** - Adequate dent resistance for outer body panels after paint-bake hardening - Good balance between formability and final strength - Suitable for door and hood applications **Fatigue Performance:** - Good fatigue resistance for automotive body panel applications - Meets automotive industry standards for durability - Suitable for dynamically loaded closure panels **Quality Requirements:** - Meets VDA 239-100 standards for automotive sheet materials - Compliant with major automotive OEM specifications - Consistent quality for high-volume production --- ### **10. Manufacturing Benefits** **Production Efficiency:** - Reduced scrap rates due to excellent formability - Consistent performance in high-speed stamping operations - Minimal surface defects reducing rework requirements - Good compatibility with automated production 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, **6014 Aluminum Alloy** represents an optimized automotive body sheet material that prioritizes formability and surface quality while maintaining adequate strength for outer body panel applications. Its balanced properties make it particularly valuable for automotive manufacturers seeking to maximize weight reduction while ensuring manufacturing reliability and excellent final appearance in visible body panels.

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 1960 gallon liquid totes Special package is available on request.