6022 Aluminum alloy,Aluminum 6022 alloy,E FORU

### **Product Introduction: 6022 Aluminum Alloy** **6022 Aluminum Alloy** is a heat-treatable aluminum-magnesium-silicon (Al-Mg-Si) alloy specifically designed for automotive body sheet applications, particularly for closure panels and structural components. It offers an excellent combination of high strength after paint baking, good formability, and superior surface quality, making it particularly suitable for demanding automotive applications where both mechanical performance and aesthetic appearance are critical. --- ### **1. International Standards** 6022 Aluminum Alloy is recognized under the following international standards: - **AA (Aluminum Association, USA):** AA 6022 - **UNS (Unified Numbering System):** UNS A96022 - **ASTM:** ASTM B209 (Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate) - **ISO (International Organization for Standardization):** AlMg0.8Si --- ### **2. Chemical Composition** The chemical composition limits (in weight percentage) are specified as follows: | Element | Content (%) | |:---------|:------------| | **Aluminum (Al)** | Balance | | **Silicon (Si)** | 0.8 - 1.3 | | **Magnesium (Mg)** | 0.45 - 0.7 | | **Manganese (Mn)** | 0.10 - 0.4 | | **Copper (Cu)** | 0.05 - 0.15 | | **Iron (Fe)** | ≤ 0.20 | | **Chromium (Cr)** | ≤ 0.10 | | **Zinc (Zn)** | ≤ 0.10 | | **Titanium (Ti)** | ≤ 0.10 | | **Others (each)** | ≤ 0.05 | | **Others (total)** | ≤ 0.15 | **Key Takeaway:** The higher silicon content combined with controlled magnesium levels provides excellent bake-hardening response, while the very low copper and iron content ensures superior surface quality and corrosion resistance. --- ### **3. Physical Properties** The typical physical properties of 6022 aluminum alloy are: | Property | Metric Value | Imperial Value | |:----------|:-------------|:---------------| | **Density** | 2.70 g/cm³ | 0.0975 lb/in³ | | **Melting Range** | 600 - 650 °C | 1112 - 1202 °F | | **Coefficient of Thermal Expansion** | 23.4 × 10⁻⁶/°C (20-100°C) | 13.0 × 10⁻⁶/°F (68-212°F) | | **Thermal Conductivity** | 160 - 180 W/m·K | 925 - 1040 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 closure panel applications: **Temper: T4** (Solution heat-treated and naturally aged) - **Tensile Strength:** 200 - 250 MPa (29 - 36 ksi) - **Yield Strength (0.2% Offset):** 100 - 150 MPa (15 - 22 ksi) - **Elongation (% in 50mm):** 20 - 26% - **Strain-Hardening Exponent (n-value):** 0.20 - 0.24 - **Plastic Strain Ratio (r-value):** 0.60 - 0.75 **After Paint-Bake Cycle** (185°C/365°F for 20-30 minutes): - **Yield Strength Increase:** 90 - 130 MPa (13 - 19 ksi) - **Final Yield Strength:** 190 - 280 MPa (28 - 41 ksi) - **Final Tensile Strength:** 260 - 330 MPa (38 - 48 ksi) --- ### **5. Product Applications** 6022 Aluminum Alloy is extensively used in automotive body applications: - **Automotive Closure Panels:** - Hood outer panels - Door outer panels - Trunk lids - Liftgates and tailgates - **Structural Body Panels:** - Body side panels - Roof panels - Quarter panels - Fender panels - **High-Strength Applications:** - Reinforcement components - Bumper reinforcements - Structural body members - Crash management components - **Premium Applications:** - Luxury vehicle body panels - High-end automotive exteriors - Electric vehicle body components --- ### **6. Key Characteristics & Advantages** - **Excellent Bake-Hardening Response:** Provides superior strength increase during automotive paint-bake cycles, achieving high final strength levels suitable for structural applications. - **Good Formability:** Maintains excellent forming characteristics in T4 temper, allowing for manufacturing of complex automotive panels. - **Superior Surface Quality:** Exceptional surface characteristics with minimal roping or streaking, making it ideal for Class A automotive body panels. - **Enhanced Dent Resistance:** The high strength after baking provides excellent dent resistance for outer body panels. - **Outstanding Corrosion Resistance:** Very low copper content ensures excellent resistance to atmospheric corrosion. - **Good Hemming Performance:** Reliable edge-hemming characteristics suitable for closure panel assemblies. - **Consistent Mechanical Properties:** 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 rate optimization - Natural Aging: Properties stabilize within 24 - 72 hours - Paint-Bake Aging: Optimal response at 175 - 190°C (345 - 375°F) **Forming Guidelines:** - Good deep-drawing capability with drawing ratios up to 2.2 - Moderate springback characteristics - Suitable for complex stamping operations - Compatible with high-speed automated production **Surface Treatment:** - Excellent paint adhesion characteristics - Suitable for various pre-treatment processes - Good response to automotive E-coat systems - Maintains superior surface quality through painting process --- ### **8. Comparative Advantages** **vs. 6016 Alloy:** - Higher strength after paint baking - Better dent resistance - Superior bake-hardening response - More suitable for structural applications **vs. 6111 Alloy:** - Better corrosion resistance - Superior surface quality - More consistent forming behavior - Enhanced hemming performance **vs. 6021 Alloy:** - Higher strength potential - Better bake-hardening response - Superior for closure panel applications - Enhanced structural performance --- ### **9. Automotive Performance** **Structural Performance:** - Excellent for body-in-white applications - Good energy absorption characteristics - Suitable for safety-critical components - Meets automotive crash performance requirements **Durability Characteristics:** - Good fatigue resistance for automotive applications - Maintains performance under dynamic loading - Excellent long-term durability - Resistant to automotive environmental conditions --- ### **10. Manufacturing and Economic Benefits** **Production Efficiency:** - Good compatibility with automated production systems - Consistent performance in high-volume manufacturing - Reduced scrap rates due to reliable formability - Efficient material utilization **Economic Advantages:** - Competitive material cost for performance level - Reduced warranty issues due to excellent corrosion resistance - Lower total lifecycle costs - Good value proposition for automotive applications --- ### **Summary** **6022 Aluminum Alloy** represents a high-performance automotive body sheet material that delivers an exceptional balance of strength, formability, and surface quality. Its optimized chemistry and processing characteristics make it particularly valuable for automotive closure panels and structural body components where high strength after paint baking, excellent dent resistance, and superior surface quality are essential requirements. The alloy's consistent performance and reliable manufacturing characteristics position it as a premium choice for automotive manufacturers seeking to maximize weight reduction while maintaining structural integrity, aesthetic appeal, and long-term durability in demanding automotive 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 1970 gallon liquid totes Special package is available on request.