6027 Aluminum alloy,Aluminum 6027 alloy,E FORU

### **Product Introduction: 6027 Aluminum Alloy** **6027 Aluminum Alloy** is a heat-treatable aluminum-magnesium-silicon (Al-Mg-Si) alloy specifically developed for automotive body sheet applications, offering an optimized balance of formability, bake-hardening response, and surface quality. This alloy is particularly designed for modern automotive manufacturing processes where consistent performance and weight reduction are critical requirements. --- ### **1. International Standards** 6027 Aluminum Alloy is recognized under the following international standards: - **AA (Aluminum Association, USA):** AA 6027 - **UNS (Unified Numbering System):** UNS A96027 - **ISO (International Organization for Standardization):** AlMg0.5Si - **ASTM:** ASTM B209 (Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate) --- ### **2. Chemical Composition** The chemical composition limits (in weight percentage) are specified as follows: | Element | Content (%) | |:---------|:------------| | **Aluminum (Al)** | Balance | | **Silicon (Si)** | 0.60 - 1.0 | | **Magnesium (Mg)** | 0.35 - 0.6 | | **Manganese (Mn)** | 0.10 - 0.4 | | **Copper (Cu)** | ≤ 0.15 | | **Iron (Fe)** | ≤ 0.20 | | **Chromium (Cr)** | ≤ 0.10 | | **Zinc (Zn)** | ≤ 0.10 | | **Titanium (Ti)** | ≤ 0.08 | | **Others (each)** | ≤ 0.05 | | **Others (total)** | ≤ 0.15 | **Key Takeaway:** The carefully balanced silicon and magnesium content provides reliable age-hardening response, while the low copper and iron content ensures excellent surface quality and corrosion resistance for automotive exterior applications. --- ### **3. Physical Properties** The typical physical properties of 6027 aluminum alloy are: | Property | Metric Value | Imperial Value | |:----------|:-------------|:---------------| | **Density** | 2.70 g/cm³ | 0.0975 lb/in³ | | **Melting Range** | 605 - 650 °C | 1121 - 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 stamping and forming processes: **Temper: T4** (Solution heat-treated and naturally aged) - **Tensile Strength:** 170 - 220 MPa (25 - 32 ksi) - **Yield Strength (0.2% Offset):** 70 - 120 MPa (10 - 17 ksi) - **Elongation (% in 50mm):** 24-30% - **Strain-Hardening Exponent (n-value):** 0.23 - 0.27 - **Plastic Strain Ratio (r-value):** 0.70 - 0.85 **After Paint-Bake Cycle** (185°C/365°F for 20-30 minutes): - **Yield Strength Increase:** 60 - 100 MPa (9 - 15 ksi) - **Final Yield Strength:** 130 - 220 MPa (19 - 32 ksi) - **Final Tensile Strength:** 200 - 280 MPa (29 - 41 ksi) --- ### **5. Product Applications** 6027 Aluminum Alloy is primarily used in automotive body panel applications: - **Automotive Outer Body Panels:** - Door outer panels - Hood outer panels - Fender panels - Quarter panels - Roof panels - **Automotive Closure Systems:** - Trunk lids - Liftgate panels - Tailgate components - Hinge reinforcement areas - **General Automotive Applications:** - Body side panels - Wheel arch panels - Non-structural body components - Exterior trim components - **Specific Use Cases:** - Applications requiring excellent surface quality - Components with deep-drawing requirements - Parts where consistent formability is essential - Automotive panels requiring Class A surface finish --- ### **6. Key Characteristics & Advantages** - **Excellent Formability:** Superior deep-drawing and stretch-forming capabilities, allowing for manufacturing of complex automotive panels with minimal risk of splitting or cracking. - **Good Surface Quality:** Excellent surface characteristics with minimal roping, streaking, or orange peel effect, suitable for Class A automotive body panels. - **Adequate Bake-Hardening Response:** Provides sufficient strength increase during automotive paint-bake cycles to meet dent resistance requirements for outer body panels. - **Superior Corrosion Resistance:** The low copper content ensures excellent resistance to atmospheric corrosion, making it ideal for automotive exterior applications. - **Excellent Hemming Performance:** Reliable edge-hemming characteristics with minimal risk of cracking, crucial for automotive closure panel assemblies. - **Consistent Mechanical Properties:** Highly reproducible behavior in high-volume automotive production environments. - **Weight Reduction Capability:** Enables significant mass reduction while maintaining required performance characteristics. --- ### **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 24-48 hours at room temperature - Paint-Bake Response: Effective at standard automotive curing temperatures (165-190°C) **Forming Guidelines:** - Excellent deep-drawing capability with drawing ratios up to 2.4 - Low springback characteristics for improved dimensional accuracy - Suitable for high-speed automated stamping operations - Compatible with all standard automotive stamping lubricants **Surface Treatment:** - Excellent paint adhesion characteristics - Suitable for various automotive pre-treatment processes - Good performance with cathodic electrocoating systems - Maintains surface quality through entire painting process --- ### **8. Comparative Advantages** **vs. 6016 Alloy:** - Better deep-drawing capability - Superior surface quality - More consistent forming behavior - Enhanced hemming performance **vs. 6022 Alloy:** - Better formability characteristics - Superior surface quality - More suitable for complex panel geometries - Enhanced manufacturing consistency **vs. 6111 Alloy:** - Superior formability - Better surface characteristics - More consistent in high-volume production - Lower strength but improved manufacturability --- ### **9. Automotive 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 **Quality Assurance:** - Meets automotive OEM specifications for body panels - Consistent mechanical properties lot-to-lot - Predictable aging behavior - Reliable performance in high-volume production --- ### **10. Economic and Performance Benefits** **Cost Effectiveness:** - Competitive material pricing - Reduced tooling maintenance costs - Lower rejection rates in production - Efficient material utilization **Performance in Service:** - Good dent resistance for outer body panels - Excellent corrosion performance in automotive environments - Maintains dimensional stability in service - Suitable for various climatic conditions --- ### **Summary** **6027 Aluminum Alloy** represents an optimized automotive body sheet material that prioritizes formability, surface quality, and manufacturing consistency. Its balanced properties 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. The alloy's excellent deep-drawing capability, combined with good bake-hardening response and superior surface characteristics, positions it as an ideal choice for modern automotive production where complex panel geometries, high-volume manufacturing efficiency, and consistent quality are essential requirements. As the automotive industry continues to pursue lightweighting strategies, 6027 aluminum alloy offers a reliable and cost-effective solution for exterior body panel 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 1975 gallon liquid totes Special package is available on request.