1040 Aluminum alloy,Aluminum 1040 alloy,E FORU

**1040 Aluminum Alloy: High-Purity Performance for Versatile Applications** The **1040 Aluminum Alloy** (also known as Aluminum 1040) is a member of the 1000 series, celebrated for its high purity (≥99.4% aluminum) and exceptional balance of mechanical, physical, and corrosion-resistant properties. This alloy is widely used in industries where lightweight design, thermal/electrical conductivity, and cost-effectiveness are critical. Below is a detailed overview: ### **Chemical Composition** The composition of 1040 Aluminum Alloy is defined by its high aluminum content and strict impurity limits: - **Aluminum (Al):** ≥99.4% (minimum) - **Iron (Fe):** ≤0.50% - **Silicon (Si):** ≤0.30% - **Copper (Cu):** ≤0.10% - **Manganese (Mn):** ≤0.05% - **Magnesium (Mg):** ≤0.05% - **Zinc (Zn):** ≤0.10% - **Other Elements:** Each ≤0.03%, Total ≤0.15% This purity ensures the alloy retains the inherent benefits of pure aluminum while offering improved mechanical properties compared to commercially pure grades like 1060. ### **Physical and Mechanical Properties** #### **Physical Properties** - **Density:** 2.705 g/cm³ (significantly lighter than steel, which is ~7.85 g/cm³) - **Melting Point:** 660.3°C (1220.5°F) - **Thermal Conductivity:** ~237 W/m·K (excellent heat dissipation) - **Electrical Conductivity:** ~63% IACS (International Annealed Copper Standard) - **Reflectivity:** Polished surfaces reflect over 80% of visible light #### **Mechanical Properties (Typical Values)** - **Tensile Strength:** 120–200 MPa (17,400–29,000 psi) - **Yield Strength (0.2% Offset):** 35–110 MPa (5,080–15,960 psi) - **Elongation at Break:** ≥25% (excellent ductility) - **Hardness:** 20–38 HB (Brinell) *Note: Properties vary with processing conditions (e.g., cold working or annealing).* ### **Key Characteristics** 1. **Corrosion Resistance:** The alloy forms a dense, self-healing oxide layer (Al₂O₃) that protects against atmospheric, water, and chemical corrosion. It is particularly suitable for outdoor and marine environments. 2. **Formability:** High ductility allows easy shaping via rolling, extrusion, bending, and deep drawing. It is ideal for complex geometries. 3. **Weldability:** Readily weldable using techniques like TIG, MIG, and resistance welding. Post-weld properties remain consistent. 4. **Low-Temperature Performance:** Strength and ductility increase at sub-zero temperatures, making it suitable for cryogenic applications. 5. **Non-Magnetic and Non-Sparking:** Safe for use in environments with explosive risks or sensitive electronics. ### **Product Applications** 1. **Electrical and Electronics:** - Power transmission lines, busbars, and electrical components due to high conductivity. - Heat sinks for electronics and LED lighting. 2. **Automotive and Transportation:** - Lightweight structural parts (e.g., body panels, engine components) to improve fuel efficiency. - Radiators and heat exchangers for thermal management. 3. **Construction and Architecture:** - Window frames, curtain walls, and roofing due to corrosion resistance and aesthetic appeal. - Decorative trims and signage. 4. **Packaging:** - Food and beverage containers, foil, and cans (safe for direct food contact). 5. **Aerospace:** - Non-critical structural components, interior fittings, and heat-resistant parts. 6. **General Engineering:** - Chemical storage tanks, pipelines, and equipment in corrosive environments. - Kitchenware and medical devices requiring hygiene and corrosion resistance. ### **International Standards** 1. **ASTM Standards (USA):** - **ASTM B209/B209M-21:** Specification for Aluminum and Aluminum-Alloy Sheet and Plate (covers 1040 in various tempers). - **UNS A91040:** Unified Numbering System designation for 1040 Aluminum Alloy. 2. **EN Standards (Europe):** - **EN 573-3:** Aluminum and Aluminum Alloys – Chemical Composition Limits (equivalent to AA 1040). 3. **ISO Standards (International):** - **ISO 209:2007:** Aluminum and Aluminum Alloys – Chemical Composition Cross-Reference Table (includes 1040). 4. **Chinese Standards:** - **GB/T 3190:** Chemical Composition of Wrought Aluminum and Aluminum Alloys (1040 corresponds to L4). ### **Processing and Fabrication** - **Forming:** Cold rolling, extrusion, and stamping are common methods. Annealing (350–370°C) restores ductility after cold working. - **Machining:** Requires sharp tools and moderate cutting speeds due to its softness. Lubrication improves surface finish. - **Surface Treatments:** Anodizing enhances corrosion resistance and appearance. Powder coating or painting is also applied for decorative purposes. ### **Conclusion** 1040 Aluminum Alloy stands out for its high purity, lightweight design, and versatility across industries. Its combination of corrosion resistance, conductivity, and formability makes it a preferred choice for applications where cost-effective performance is essential. Whether in electrical systems, automotive components, or architectural structures, 1040 Aluminum Alloy delivers reliable and efficient solutions.

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 1422 gallon liquid totes Special package is available on request.