1235-O Aluminum alloy,Aluminum 1235-O alloy,E FORU

### **1235-O Aluminum Alloy Product Introduction** **1. Overview** 1235-O is the annealed temper of a high-purity aluminum alloy from the 1xxx series, featuring excellent formability and good electrical conductivity. The "O" temper designation indicates that the material has been fully annealed to achieve maximum softness and workability. With its high aluminum content and optimized impurity control, 1235-O offers superior performance for applications requiring extreme forming operations while maintaining good electrical and thermal conductivity, making it particularly suitable for foil products and deep drawing applications. **2. Chemical Composition (Typical, % by Weight)** The composition features high purity with controlled impurity levels. | Element | Content (%) | |---------|-------------| | **Aluminum (Al)** | ≥99.35 | | **Iron (Fe)** | ≤0.40 | | **Silicon (Si)** | ≤0.25 | | **Copper (Cu)** | ≤0.05 | | **Manganese (Mn)** | ≤0.05 | | **Zinc (Zn)** | ≤0.06 | | **Other Elements (Each)** | ≤0.03 | | **Other Elements (Total)** | ≤0.10 | *Note: The high purity composition (99.35% min aluminum) ensures good electrical conductivity and superior formability in the annealed condition.* **3. Physical Properties** | Property | Value | |----------|-------| | **Density** | 2.71 g/cm³ | | **Melting Point** | 646-657°C | | **Electrical Conductivity** | 61% IACS | | **Thermal Conductivity** | 234 W/(m·K) | | **Coefficient of Thermal Expansion** | 23.4 × 10⁻⁶/K (20-100°C) | | **Modulus of Elasticity** | 69 GPa | **4. Mechanical Properties (Typical for O Temper)** The O temper provides the softest condition with maximum ductility for 1235 aluminum. | Property | Value | |----------|-------| | **Tensile Strength** | 70-95 MPa | | **Yield Strength (0.2% Offset)** | 25-40 MPa | | **Elongation (% in 50mm)** | 35-45% | | **Hardness (Brinell)** | 22-27 HB | *Key Characteristics of O Temper:* * **Exceptional Ductility**: High elongation capability for severe forming operations * **Excellent Formability**: Ideal for deep drawing, spinning, and complex forming * **Good Conductivity**: Reasonable electrical and thermal conductivity * **Low Strength**: Minimum mechanical strength with maximum workability **5. Product Applications** 1235-O is primarily supplied as foil, thin sheet, and strip for demanding forming applications. * **Packaging Industry**: Food packaging foil, container stock, and laminated materials * **Electrical Components**: Transformer windings, capacitor foils, and flexible conductors * **Deep Drawing Products**: Complex-shaped containers and precision components * **Heat Exchangers**: Fins and heat transfer components * **Chemical Equipment**: Lining materials and corrosion-resistant containers * **Decorative Applications**: Decorative trim and architectural elements * **General Manufacturing**: Prototypes and complex-shaped components **6. International Standards** 1235-O is recognized under major international standardization systems. | Standard System | Designation | |-----------------|-------------| | **ISO** | Al99.35 O | | **EN (Europe)** | EN AW-1235 O | | **ASTM (USA)** | ASTM B479 1235 O | | **UNS (USA)** | UNS A91235 O | | **JIS (Japan)** | A1235 O | | **GB (China)** | 1235 O | --- **Summary** **1235-O Aluminum Alloy** represents a **high-purity aluminum grade in the fully annealed condition**, offering **exceptional formability and good electrical conductivity**. With its high aluminum content (99.35% minimum) and optimized impurity control, this alloy provides excellent workability for demanding forming operations while maintaining good electrical and thermal performance. The O temper condition makes 1235-O particularly valuable for applications requiring severe deformation and complex shapes, such as packaging materials, electrical components, and deep-drawn products. Its combination of good formability, adequate conductivity, and excellent surface quality establishes 1235-O as a reliable material choice for various industrial applications, especially in the packaging and electrical industries where material purity and formability are essential requirements. The alloy's consistent performance and versatility make it a preferred choice for foil manufacturing and other applications demanding maximum workability.

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 1472 gallon liquid totes Special package is available on request.