1050-H18 Aluminum alloy,Aluminum 1050-H18 alloy,E FORU

### **1050-H18 Aluminum Alloy Product Introduction** **1. Overview** 1050-H18 is a strain-hardened temper of commercially pure 1050 aluminum alloy, representing the full-hard condition in the H1X temper series. As part of the 1xxx series of non-heat-treatable aluminum alloys, it achieves its highest possible strength through extensive cold working. The "H18" temper designation indicates the material has been strain-hardened to achieve maximum strength without subsequent thermal treatment. This temper offers the highest mechanical strength among the standard strain-hardened tempers for 1050 aluminum, while maintaining the fundamental benefits of pure aluminum. **2. Chemical Composition (Typical, % by Weight)** The chemical composition follows the standard 1050 aluminum specification with high purity requirements. | Element | Content (%) | |---------|-------------| | **Aluminum (Al)** | ≥99.50 | | **Iron (Fe)** | ≤0.40 | | **Silicon (Si)** | ≤0.25 | | **Copper (Cu)** | ≤0.05 | | **Manganese (Mn)** | ≤0.05 | | **Zinc (Zn)** | ≤0.07 | | **Other Elements (Each)** | ≤0.03 | | **Other Elements (Total)** | ≤0.10 | *Note: The high purity composition (99.5% min aluminum) ensures excellent corrosion resistance and formability despite the hard temper.* **3. Physical Properties** | Property | Value | |----------|-------| | **Density** | 2.71 g/cm³ | | **Melting Point** | 645-655°C | | **Electrical Conductivity** | 61% IACS | | **Thermal Conductivity** | 222 W/(m·K) | | **Coefficient of Thermal Expansion** | 23.6 × 10⁻⁶/K (20-100°C) | | **Modulus of Elasticity** | 70 GPa | **4. Mechanical Properties (Typical for H18 Temper)** The H18 temper provides the highest strength achievable through cold working for 1050 aluminum. | Property | Value | |----------|-------| | **Tensile Strength** | 150-180 MPa | | **Yield Strength (0.2% Offset)** | 140-165 MPa | | **Elongation (% in 50mm)** | 2-5% | | **Hardness (Brinell)** | 40-45 HB | *Key Characteristics of H18 Temper:* * **Maximum Strength**: Provides the highest mechanical strength among standard strain-hardened tempers * **Limited Formability**: Suitable only for very simple bending operations due to low elongation * **Excellent Flatness**: Maintains superior dimensional stability and flatness * **Good Surface Quality**: Retains excellent surface characteristics for finishing processes **5. Product Applications** 1050-H18 is primarily supplied as sheet, strip, and foil for applications requiring high strength and rigidity. * **Electronic Components**: Heat sinks, shielding covers, and structural components * **Architectural Applications**: Roofing sheets, wall panels requiring high stiffness * **Industrial Components**: Nameplates, tags, washers, and shims * **Packaging Materials**: Rigid packaging containers and protective covers * **Electrical Applications**: Busbar components and conductive parts requiring stiffness * **Reflectors**: Parabolic reflectors and light fixtures requiring shape stability **6. International Standards** 1050-H18 is recognized globally under various standardization systems. | Standard System | Designation | |-----------------|-------------| | **ISO** | Al99.5 H18 | | **EN (Europe)** | EN AW-1050A H18 | | **ASTM (USA)** | ASTM B491 1050 H18 | | **UNS (USA)** | UNS A91050 H18 | | **JIS (Japan)** | A1050 H18 | | **GB (China)** | 1050A H18 | --- **Summary** **1050-H18 Aluminum Alloy** represents the **full-hard temper** in the 1050 aluminum series, providing the **maximum strength achievable through cold working** while maintaining the essential characteristics of pure aluminum. This temper offers superior mechanical properties including high tensile and yield strength, excellent dimensional stability, and good surface quality. While its formability is limited compared to softer tempers, it serves critical applications where rigidity, flatness, and strength are paramount. The combination of high purity aluminum benefits with maximum strain-hardened strength makes 1050-H18 an ideal choice for structural components, architectural elements, and industrial applications demanding both performance and reliability.

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 1427 gallon liquid totes Special package is available on request.