1100-H18 Aluminum alloy,Aluminum 1100-H18 alloy,E FORU

### **1100-H18 Aluminum Alloy Product Introduction** **1. Overview** 1100-H18 is a strain-hardened temper of the commercially pure 1100 aluminum alloy, representing the full-hard condition in the H1X temper series. The "H18" temper designation indicates that the material has been strain-hardened to achieve maximum strength without subsequent thermal treatment. This temper offers the highest possible mechanical strength while maintaining the fundamental characteristics of pure aluminum, making it suitable for applications requiring maximum rigidity, dimensional stability, and resistance to deformation. **2. Chemical Composition (Typical, % by Weight)** The composition follows the standard 1100 aluminum specification with controlled impurities. | Element | Content (%) | |---------|-------------| | **Aluminum (Al)** | ≥99.00 | | **Iron (Fe)** | ≤0.45 | | **Silicon (Si)** | ≤0.30 | | **Copper (Cu)** | 0.05-0.20 | | **Manganese (Mn)** | ≤0.05 | | **Zinc (Zn)** | ≤0.07 | | **Other Elements (Each)** | ≤0.03 | | **Other Elements (Total)** | ≤0.10 | *Note: The copper content (0.05-0.20%) contributes to the maximum strength achievable through strain hardening.* **3. Physical Properties** | Property | Value | |----------|-------| | **Density** | 2.71 g/cm³ | | **Melting Point** | 643-657°C | | **Electrical Conductivity** | 57% IACS | | **Thermal Conductivity** | 215 W/(m·K) | | **Coefficient of Thermal Expansion** | 23.6 × 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 1100 aluminum. | Property | Value | |----------|-------| | **Tensile Strength** | 150-180 MPa | | **Yield Strength (0.2% Offset)** | 140-170 MPa | | **Elongation (% in 50mm)** | 4-8% | | **Hardness (Brinell)** | 42-48 HB | *Key Characteristics of H18 Temper:* * **Maximum Strength**: Highest mechanical strength among standard strain-hardened tempers * **Excellent Rigidity**: Superior dimensional stability and flatness * **Limited Formability**: Suitable only for very simple bending operations * **Good Surface Quality**: Maintains excellent surface characteristics for finishing **5. Product Applications** 1100-H18 is primarily supplied as sheet, strip, and foil for applications requiring maximum strength and flatness. * **Electronic Components**: Heat sinks, shielding covers, and rigid structural parts * **Architectural Applications**: Roofing sheets, wall panels requiring maximum stiffness * **Industrial Components**: Nameplates, tags, washers, and shims * **Signage Industry**: Rigid sign boards and identification plates * **Electrical Applications**: Busbar components requiring high stiffness * **Packaging Materials**: Rigid packaging containers and protective covers * **Consumer Products**: Appliance components and durable goods **6. International Standards** 1100-H18 is recognized globally under various standardization systems. | Standard System | Designation | |-----------------|-------------| | **ISO** | Al99.0Cu H18 | | **EN (Europe)** | EN AW-1100A H18 | | **ASTM (USA)** | ASTM B209 1100 H18 | | **UNS (USA)** | UNS A91100 H18 | | **JIS (Japan)** | A1100 H18 | | **GB (China)** | 1100 H18 | --- **Summary** **1100-H18 Aluminum Alloy** represents the **full-hard temper** in the 1100 aluminum series, providing the **maximum strength achievable through cold working** while maintaining the essential benefits of commercially 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 maximum rigidity, flatness, and strength are paramount. The combination of high strength characteristics with the inherent corrosion resistance and workability of the 1100 base alloy makes 1100-H18 an ideal choice for structural components, electronic enclosures, architectural elements, and industrial applications demanding both high 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 1448 gallon liquid totes Special package is available on request.