1145-H18 Aluminum alloy,Aluminum 1145-H18 alloy,E FORU

### **1145-H18 Aluminum Alloy Product Introduction** **1. Overview** 1145-H18 is a strain-hardened temper of a high-purity aluminum alloy from the 1xxx series, representing the full-hard condition. The "H18" temper designation indicates that the material has been strain-hardened to achieve maximum strength without subsequent thermal treatment. With its high aluminum content and full-hard temper, 1145-H18 offers an excellent combination of strength, formability for simple bends, and the characteristic benefits of pure aluminum, making it particularly suitable for packaging and electrical applications requiring rigidity. **2. Chemical Composition (Typical, % by Weight)** The composition adheres to high purity standards with tightly controlled impurities. | Element | Content (%) | | :--------------- | :----------------------- | | **Aluminum (Al)** | ≥ 99.45 | | **Iron (Fe)** | ≤ 0.30 | | **Silicon (Si)** | ≤ 0.25 | | **Copper (Cu)** | ≤ 0.05 | | **Manganese (Mn)**| ≤ 0.05 | | **Zinc (Zn)** | ≤ 0.05 | | **Other Elements (Each)** | ≤ 0.03 | | **Other Elements (Total)** | ≤ 0.10 | *Note: The high purity composition (99.45% min aluminum) ensures excellent corrosion resistance and formability, even in the hard temper.* **3. Physical Properties** | Property | Value | | :---------------------------- | :----------------- | | **Density** | 2.71 g/cm³ | | **Melting Point** | 646 - 657 °C | | **Electrical Conductivity** | 62% 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 H18 Temper)** The H18 temper provides the highest strength achievable through cold working for 1145 aluminum. | Property | Value | | :----------------------- | :----------- | | **Tensile Strength** | 150 - 180 MPa| | **Yield Strength (0.2% Offset)** | 140 - 170 MPa| | **Elongation (% in 50mm)**| 3 - 6 % | | **Hardness (Brinell)** | 40 - 46 HB | *Key Characteristics of H18 Temper:* * **High Strength**: Maximum strength for the alloy, suitable for rigid structures. * **Good Rigidity**: Excellent resistance to bending and deformation. * **Limited but Adequate Formability**: Can withstand simple bending and forming operations. * **Excellent Surface Quality**: Ideal for printing, coating, and other finishing processes. **5. Product Applications** 1145-H18 is primarily supplied as foil and thin sheet for applications requiring a combination of strength and specific functional properties. * **Packaging**: Rigid packaging foil, laminated containers, and lids. * **Electrical Applications**: Capacitor housings, conductive strips, and battery shells. * **Heat Exchangers**: Fins and components requiring specific stiffness. * **Insulation Materials**: Backing foils for insulating materials. * **Printing Industry**: Printing plates and decorative foils. * **Food Service**: Semi-rigid food containers and packaging. **6. International Standards** 1145-H18 is recognized under major international standardization systems. | Standard System | Designation | | :-------------- | :---------- | | **ISO** | Al99.45 H18 | | **EN (Europe)** | EN AW-1145 H18 | | **ASTM (USA)** | ASTM B479 / B491 1145 H18 | | **UNS (USA)** | UNS A91145 H18 | | **JIS (Japan)** | A1145 H18 | | **GB (China)** | 1145 H18 | --- **Summary** **1145-H18 Aluminum Alloy** is a **high-purity aluminum in the full-hard temper**, offering a **unique combination of high strength, good rigidity, and the intrinsic benefits of a pure aluminum base**. This makes it particularly valuable for applications in the packaging and electrical industries where material purity (important for food contact and corrosion resistance) must be paired with sufficient mechanical strength to maintain structure and shape. Its excellent surface quality also makes it a preferred choice for applications requiring printing, coating, or other decorative finishes.

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 1453 gallon liquid totes Special package is available on request.