1290 Aluminum alloy,Aluminum 1290 alloy,E FORU

### **1290 Aluminum Alloy Product Introduction** **1. Overview** 1290 Aluminum Alloy is an ultra-high purity aluminum grade from the 1xxx series, featuring exceptional aluminum content that makes it particularly suitable for applications requiring maximum electrical conductivity and superior corrosion resistance. As a non-heat-treatable alloy, it offers excellent formability in the annealed condition and can be strain-hardened to achieve various strength levels. This alloy is especially valued for specialized electrical, electronic, and high-purity applications where material purity directly impacts performance. **2. Chemical Composition (Typical, % by Weight)** The composition represents one of the highest purity levels in commercial aluminum production. | Element | Content (%) | |---------|-------------| | **Aluminum (Al)** | ≥99.90 | | **Iron (Fe)** | ≤0.05 | | **Silicon (Si)** | ≤0.05 | | **Copper (Cu)** | ≤0.01 | | **Manganese (Mn)** | ≤0.01 | | **Zinc (Zn)** | ≤0.01 | | **Other Elements (Each)** | ≤0.01 | | **Other Elements (Total)** | ≤0.02 | *Note: The ultra-high purity composition (99.90% min aluminum) ensures maximum electrical conductivity and superior corrosion resistance.* **3. Physical Properties** | Property | Value | |----------|-------| | **Density** | 2.71 g/cm³ | | **Melting Point** | 646-657°C | | **Electrical Conductivity** | 67% IACS | | **Thermal Conductivity** | 246 W/(m·K) | | **Coefficient of Thermal Expansion** | 22.8 × 10⁻⁶/K (20-100°C) | | **Modulus of Elasticity** | 69 GPa | **4. Mechanical Properties (Typical)** Properties vary significantly with temper condition, offering flexibility for different manufacturing requirements. | Temper | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | |--------|------------------------|----------------------|----------------| | **O (Annealed)** | 50-70 | 10-20 | 45-60 | | **H14 (Half-Hard)** | 95-120 | 80-105 | 15-25 | | **H18 (Full-Hard)** | 135-160 | 125-145 | 8-15 | *Key Characteristics:* * **Exceptional Conductivity**: Excellent electrical and thermal conductivity * **Superior Corrosion Resistance**: Outstanding performance in various environments * **Excellent Formability**: Ideal for forming operations in annealed condition * **Good Weldability**: Suitable for all conventional welding methods **5. Product Applications** 1290 aluminum is supplied in various forms including foil, sheet, wire, and strip for specialized applications. * **Electrical Conductors**: Ultra-high efficiency power transmission lines and busbars * **Electronics**: Ultra-pure capacitor foils and transformer windings * **Chemical Processing**: Equipment for ultra-pure chemical production and storage * **Food and Pharmaceutical**: High-purity packaging and processing equipment * **Heat Exchangers**: High-efficiency thermal transfer components * **Research Equipment**: Scientific instruments and laboratory apparatus * **Optical Applications**: High-reflectivity mirrors and precision components **6. International Standards** 1290 aluminum is recognized under major international standardization systems. | Standard System | Designation | |-----------------|-------------| | **ISO** | Al99.90 | | **EN (Europe)** | EN AW-1290 [Al99.90] | | **ASTM (USA)** | ASTM B230/B231 1290 | | **UNS (USA)** | UNS A91290 | | **JIS (Japan)** | A1290 | | **GB (China)** | 1290 | --- **Summary** **1290 Aluminum Alloy** represents an **ultra-high purity aluminum grade** that offers **exceptional electrical conductivity and superior corrosion resistance**. With its 99.90% minimum aluminum content, this alloy provides the highest level of performance characteristics for demanding electrical, electronic, and chemical applications. The combination of maximum conductivity, excellent formability in the annealed condition, and the ability to achieve higher strength through strain hardening makes 1290 aluminum a premium choice for specialized industrial applications. Its exceptional purity and reliable performance establish 1290 as a valuable material for applications where maximum material purity and electrical performance are critical factors, particularly in advanced electronics, high-purity chemical processing, and specialized research 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 1476 gallon liquid totes Special package is available on request.