1045 Aluminum alloy,Aluminum 1045 alloy,E FORU

**1045 Aluminum Alloy Product Introduction** **1. Overview** 1045 aluminum alloy is a commercially pure aluminum grade from the 1xxx series. It is characterized by its excellent electrical and thermal conductivity, high corrosion resistance, and good workability. With a slightly higher minimum aluminum content than 1035, it offers marginally improved conductivity and corrosion resistance. Like all 1xxx series alloys, it is non-heat-treatable, and its strength is increased primarily through cold working (strain hardening). It is commonly used in applications where formability and conductivity are more critical than high strength. **2. Chemical Composition (Typical, % by Weight)** The composition conforms to standards such as ASTM B491 and EN AW-1045. | Element | Content (%) | | :--- | :--- | | **Aluminum (Al)** | **99.45 min** | | **Iron (Fe)** | 0.0 - 0.55 | | **Silicon (Si)** | 0.0 - 0.35 | | **Copper (Cu)** | 0.0 - 0.10 | | **Manganese (Mn)** | 0.0 - 0.05 | | **Zinc (Zn)** | 0.0 - 0.05 | | **Other Elements (Each)** | ≤ 0.03 | | **Other Elements (Total)** | ≤ 0.10 | *Note: The key distinction from 1035 is the higher minimum aluminum content (99.45%), which directly enhances its electrical and thermal conductivity.* **3. Physical Properties** | Property | Value / Description | | :--- | :--- | | **Density** | 2.71 g/cm³ (0.098 lb/in³) | | **Melting Point** | ~ 646 °C (~1195 °F) | | **Electrical Conductivity** | **62% IACS** (International Annealed Copper Standard) | | **Thermal Conductivity** | ~238 W/m·K | | **Coefficient of Thermal Expansion** | 23.2 µm/m·K (20-100°C) | | **Modulus of Elasticity** | 69 GPa (10,000 ksi) | **4. Mechanical Properties (Typical)** Properties are primarily determined by the temper (condition). | Temper | Tensile Strength (MPa) | Yield Strength (0.2% Offset, MPa) | Elongation (% in 50mm) | | :--- | :--- | :--- | :--- | | **O (Annealed)** | 75 - 105 | 25 - 40 | 30 - 40 | | **H14 (Work Hardened)** | 120 - 145 | 105 - 125 | 6 - 12 | | **H18 (Full Hard)** | 155 - 180 | 145 - 165 | 2 - 5 | *Key Characteristics:* * **Excellent Electrical Conductivity:** Its high purity makes it one of the best conductive aluminum alloys, ideal for electrical applications. * **Superior Corrosion Resistance:** The protective oxide layer provides excellent resistance to atmospheric corrosion. * **High Formability:** In the annealed (O) condition, it is very soft and ductile, suitable for deep drawing and severe forming. * **Good Surface Finish:** It can be easily polished, anodized, and coated. **5. Product Applications** 1045 aluminum is typically supplied as wire, busbars, sheet, and strip for specific applications that leverage its high conductivity and formability. * **Electrical Conductors:** Primarily used for **electrical busbars**, power transmission lines, and magnet wire. * **Heat Exchangers:** Its high thermal conductivity makes it suitable for radiator fins and heat transfer components. * **Chemical Equipment:** Tanks and piping for handling certain chemicals and explosives. * **Reflectors:** For light fixtures and decorative purposes due to its excellent reflectivity and surface finishing quality. * **Packaging:** Foil and closures where high purity is beneficial. * **Decorative Parts:** Nameplates, trim, and architectural accents. **6. International Standards** 1045 aluminum is recognized under various international standard systems. | Standard System | Equivalent Designation | | :--- | :--- | | **ISO** | Al 99.45 (ISO 209) | | **ASTM (USA)** | ASTM B491 (Wire), 1045 | | **EN (Europe)** | EN AW-1045 [Al99.45] | | **UNS (USA)** | UNS A91045 | | **JIS (Japan)** | A1045 | | **GB (China)** | 1045 | --- **Summary:** **1045 Aluminum Alloy** is a high-purity aluminum grade prized for its **superior electrical conductivity, excellent corrosion resistance, and good formability**. It is a critical material for the electrical industry, particularly for busbars and conductors, where its performance is a key advantage over lower-purity grades. Its compliance with major international standards ensures its reliable performance in global markets.

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 1423 gallon liquid totes Special package is available on request.