6043 Aluminum alloy,Aluminum 6043 alloy,E FORU

### **Product Introduction: 6043 Aluminum Alloy** **6043 Aluminum Alloy** is a specialized heat-treatable aluminum-magnesium-silicon (Al-Mg-Si) alloy developed for architectural and structural applications requiring excellent extrudability, good surface finish, and superior anodizing characteristics. This alloy is particularly designed for applications where aesthetic appearance, corrosion resistance, and structural integrity are equally important. --- ### **1. International Standards** 6043 Aluminum Alloy is recognized under the following international standards: - **AA (Aluminum Association, USA):** AA 6043 - **UNS (Unified Numbering System):** UNS A96043 - **ISO (International Organization for Standardization):** AlMg0.7Si - **ASTM:** ASTM B221 (Standard Specification for Aluminum and Aluminum-Alloy Extruded Bars, Rods, and Profiles) - **EN (European Norm):** EN AW-6043 --- ### **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)** | 0.40 - 0.9 | | **Manganese (Mn)** | ≤ 0.45 | | **Copper (Cu)** | ≤ 0.15 | | **Iron (Fe)** | ≤ 0.30 | | **Chromium (Cr)** | ≤ 0.15 | | **Zinc (Zn)** | ≤ 0.10 | | **Titanium (Ti)** | ≤ 0.10 | | **Others (each)** | ≤ 0.05 | | **Others (total)** | ≤ 0.15 | **Key Takeaway:** The carefully controlled low copper and iron content ensures excellent corrosion resistance and superior surface quality for anodizing, while the balanced magnesium-silicon ratio provides adequate age-hardening response for structural applications. --- ### **3. Physical Properties** The typical physical properties of 6043 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** | 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 are optimized for architectural applications: **Temper: T5** (Cooled from an elevated temperature shaping process and artificially aged) - **Tensile Strength:** 180 - 230 MPa (26 - 33 ksi) - **Yield Strength (0.2% Offset):** 120 - 170 MPa (17 - 25 ksi) - **Elongation (% in 50mm):** 10-14% **Temper: T6** (Solution heat-treated and artificially aged) - **Tensile Strength:** 220 - 270 MPa (32 - 39 ksi) - **Yield Strength (0.2% Offset):** 190 - 240 MPa (28 - 35 ksi) - **Elongation (% in 50mm):** 10-14% - **Hardness (Brinell):** 70 - 80 HB --- ### **5. Product Applications** 6043 Aluminum Alloy is primarily used in architectural and aesthetic applications: - **Architectural Structures:** - Window and door frames - Curtain wall systems - Architectural glazing systems - Building facades and cladding - **Decorative Applications:** - Architectural trim and moldings - Decorative structural elements - Interior design components - Exhibition and display structures - **Consumer Products:** - Furniture frames and components - Consumer electronics housings - Appliance trim and components - Luxury goods components - **Special Applications:** - Signage and display frames - Lighting system components - Architectural hardware - Premium structural components --- ### **6. Key Characteristics & Advantages** - **Excellent Extrudability:** Superior extrusion characteristics allowing for complex profiles with sharp details and thin walls. - **Outstanding Anodizing Response:** Exceptional surface quality after anodizing with bright, uniform appearance and excellent color consistency. - **Superior Surface Finish:** Excellent natural surface quality with minimal defects, suitable for high-visibility applications. - **Excellent Corrosion Resistance:** Very good resistance to atmospheric corrosion, making it ideal for architectural applications. - **Good Weldability:** Can be readily welded using conventional methods without significant degradation of properties. - **Aesthetic Versatility:** Suitable for various surface treatments including anodizing, painting, and powder coating. - **Consistent Performance:** Reliable and predictable behavior in manufacturing processes. --- ### **7. Processing Characteristics** **Extrusion Performance:** - Excellent extrusion speed capabilities - Suitable for complex, thin-walled profiles - Good surface finish as-extruded - Minimal die lines and surface defects **Anodizing Characteristics:** - **Anodizing Quality:** Excellent for both clear and color anodizing - **Surface Brightness:** Superior pre-anodizing surface quality - **Color Uniformity:** Excellent consistency in colored anodizing - **Coating Adhesion:** Very good anodic coating adhesion **Forming and Fabrication:** - Good bendability in appropriate tempers - Suitable for mechanical joining methods - Compatible with various fabrication techniques - Good machinability for secondary operations --- ### **8. Corrosion Performance** - **Atmospheric Corrosion:** Excellent resistance to urban and rural environments - **Marine Environments:** Good performance with proper design and protection - **Industrial Atmospheres:** Adequate resistance for most applications - **Galvanic Corrosion:** Standard aluminum precautions apply **Protection Methods:** - Anodizing (sulfuric and chromic acid) - Powder coating and painting - Chemical conversion coatings - Electrostatic coating applications --- ### **9. Comparative Advantages** **vs. 6063 Alloy:** - Superior anodizing characteristics - Better surface quality - Enhanced extrusion performance for complex profiles - More consistent aesthetic results **vs. 6463 Alloy:** - Higher strength capabilities - Better for structural applications - More versatile application range - Enhanced mechanical properties **vs. 6005 Alloy:** - Better surface quality and anodizing response - Superior for architectural applications - More suitable for visible, aesthetic components --- ### **10. Quality and Architectural Standards** **Architectural Compliance:** - Meets AAMA (Architectural Aluminum Manufacturers Association) standards - Compliant with major architectural specifications - Suitable for high-end architectural applications - Consistent quality for premium projects **Quality Assurance:** - Strict surface quality control - Consistent mechanical properties - Comprehensive anodizing quality testing - Full material traceability --- ### **Summary** **6043 Aluminum Alloy** represents a premium architectural-grade aluminum alloy specifically engineered for applications where aesthetic excellence, superior surface quality, and excellent anodizing characteristics are paramount. Its optimized chemical composition and processing characteristics make it particularly valuable for high-end architectural projects, decorative applications, and premium consumer products where visual appearance is as important as structural performance. The alloy's exceptional extrudability allows for the creation of complex, detailed profiles while maintaining excellent surface quality for anodizing and other finishing processes. While offering moderate strength compared to some other 6000-series alloys, 6043 provides unmatched surface characteristics and anodizing performance, making it the material of choice for architects, designers, and manufacturers seeking the highest quality finish in visible aluminum components.

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 1982 gallon liquid totes Special package is available on request.