6040 Aluminum alloy,Aluminum 6040 alloy,E FORU

### **Product Introduction: 6040 Aluminum Alloy** **6040 Aluminum Alloy** is a heat-treatable aluminum-magnesium-silicon (Al-Mg-Si) alloy designed for specialized applications requiring a unique balance of properties. Developed to address specific industrial needs, this alloy offers a combination of good formability, corrosion resistance, and mechanical properties suitable for various engineering applications. --- ### **1. International Standards** 6040 Aluminum Alloy is recognized under the following international standards: - **AA (Aluminum Association, USA):** AA 6040 - **UNS (Unified Numbering System):** UNS A96040 - **ISO (International Organization for Standardization):** AlMg0.7Si - **ASTM:** ASTM B221 (Standard Specification for Aluminum and Aluminum-Alloy Extruded Bars, Rods, and Profiles) --- ### **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)** | 0.50 - 0.9 | | **Manganese (Mn)** | 0.10 - 0.4 | | **Copper (Cu)** | ≤ 0.15 | | **Iron (Fe)** | ≤ 0.30 | | **Chromium (Cr)** | ≤ 0.15 | | **Zinc (Zn)** | ≤ 0.15 | | **Titanium (Ti)** | ≤ 0.10 | | **Others (each)** | ≤ 0.05 | | **Others (total)** | ≤ 0.15 | **Key Takeaway:** The carefully balanced magnesium-silicon ratio provides reliable age-hardening response, while the low copper content ensures excellent corrosion resistance. The controlled manganese addition contributes to strength improvement without compromising formability. --- ### **3. Physical Properties** The typical physical properties of 6040 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** | 170 - 190 W/m·K | 980 - 1100 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 balanced for general engineering applications: **Temper: T4** (Solution heat-treated and naturally aged) - **Tensile Strength:** 190 - 240 MPa (28 - 35 ksi) - **Yield Strength (0.2% Offset):** 100 - 150 MPa (15 - 22 ksi) - **Elongation (% in 50mm):** 18-22% **Temper: T6** (Solution heat-treated and artificially aged) - **Tensile Strength:** 260 - 310 MPa (38 - 45 ksi) - **Yield Strength (0.2% Offset):** 220 - 270 MPa (32 - 39 ksi) - **Elongation (% in 50mm):** 12-16% - **Hardness (Brinell):** 80 - 90 HB --- ### **5. Product Applications** 6040 Aluminum Alloy finds applications in various industrial sectors: - **General Engineering Components:** - Machinery parts and components - Equipment structural elements - Industrial fittings and fixtures - Mechanical linkage components - **Transportation Applications:** - Non-structural automotive components - Railway interior components - Marine equipment parts - General transportation fittings - **Architectural and Construction:** - Architectural fittings - Building hardware components - Non-structural architectural elements - Decorative trim components - **Consumer and Industrial Goods:** - Appliance components - Furniture structural parts - General hardware applications - Consumer product components --- ### **6. Key Characteristics & Advantages** - **Good Corrosion Resistance:** Excellent resistance to atmospheric corrosion due to low copper content, making it suitable for various environmental conditions. - **Adequate Strength Properties:** Provides a balanced combination of strength and ductility for general engineering applications. - **Good Formability:** Reasonable forming capabilities in T4 temper, allowing for manufacturing of moderately complex components. - **Weldability:** Can be readily welded using conventional methods including MIG and TIG welding processes. - **Machinability:** Satisfactory machining characteristics for secondary processing operations. - **Extrudability:** Good extrusion characteristics for producing standard profiles and sections. - **Cost-Effectiveness:** Offers reliable performance at competitive cost for general purpose applications. --- ### **7. Processing Characteristics** **Heat Treatment Parameters:** - Solution Heat Treatment: 530-550°C (985-1020°F) - Quenching: Water quench or controlled cooling - Artificial Aging: 160-180°C (320-355°F) for 8-12 hours for T6 temper **Machining Performance:** - **Machinability Rating:** 75-85 (compared to 2011-T3 as 100) - Good chip formation characteristics - Suitable for conventional machining operations - Reasonable surface finish achievable **Forming Characteristics:** - Good formability in annealed (O) condition - Moderate formability in T4 temper - Adequate for bending and forming operations - Compatible with standard manufacturing processes --- ### **8. Corrosion Performance** - **General Corrosion:** Very good resistance to atmospheric exposure - **Stress Corrosion Cracking:** Good resistance for general applications - **Industrial Environments:** Suitable for typical service conditions - **Marine Applications:** Moderate resistance with proper protection **Protection Methods:** - Anodizing for enhanced corrosion resistance - Chemical conversion coatings - Painting and powder coating - Suitable for various surface treatment processes --- ### **9. Comparative Advantages** **vs. 6063 Alloy:** - Similar corrosion resistance - Comparable mechanical properties - Good alternative for general applications - Reliable performance characteristics **vs. 6005 Alloy:** - Similar strength levels - Good formability characteristics - Suitable for various industrial applications **vs. 6061 Alloy:** - Better corrosion resistance - Superior for some general applications - Good cost-performance balance --- ### **10. Quality and Applications** **Industry Compliance:** - Meets standard industry specifications - Suitable for general engineering applications - Compliant with relevant ASTM standards - Consistent quality and performance **Application Versatility:** - Broad range of industrial applications - Suitable for mechanical and structural components - Good performance in various service conditions - Reliable and predictable behavior --- ### **Summary** **6040 Aluminum Alloy** represents a reliable and versatile aluminum alloy that delivers a well-balanced combination of mechanical properties, corrosion resistance, and manufacturing characteristics. Its medium strength, good formability, and excellent corrosion resistance make it suitable for a wide range of general engineering, architectural, and industrial applications where consistent performance and cost-effectiveness are important considerations. While not designed for highly specialized or extreme service conditions, 6040 provides a practical and economical solution for many standard applications, serving as a dependable material choice for manufacturers seeking a balanced combination of performance, manufacturability, and cost efficiency in their aluminum components and structures. The alloy's consistent behavior and reliable performance make it a valuable option in the aluminum material portfolio for general-purpose 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 1979 gallon liquid totes Special package is available on request.