1350-H18 Aluminum alloy,Aluminum 1350-H18 alloy,E FORU

### **1350-H18 Aluminum Alloy Product Introduction** **1. Overview** 1350-H18 is a strain-hardened temper of the electrical conductor grade 1350 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 reasonable electrical conductivity, making it suitable for electrical applications requiring maximum rigidity and tensile strength. **2. Chemical Composition (Typical, % by Weight)** The composition maintains the high purity standards of 1350 aluminum alloy with controlled impurities. | Element | Content (%) | |---------|-------------| | **Aluminum (Al)** | ≥99.50 | | **Iron (Fe)** | ≤0.25 | | **Silicon (Si)** | ≤0.15 | | **Copper (Cu)** | ≤0.03 | | **Manganese (Mn)** | ≤0.02 | | **Zinc (Zn)** | ≤0.05 | | **Other Elements (Each)** | ≤0.03 | | **Other Elements (Total)** | ≤0.10 | *Note: The strictly controlled composition ensures optimal balance between electrical conductivity and mechanical properties.* **3. Physical Properties** | Property | Value | |----------|-------| | **Density** | 2.71 g/cm³ | | **Melting Point** | 646-657°C | | **Electrical Conductivity** | 59% IACS | | **Thermal Conductivity** | 225 W/(m·K) | | **Coefficient of Thermal Expansion** | 23.3 × 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 1350 aluminum. | Property | Value | |----------|-------| | **Tensile Strength** | 155-180 MPa | | **Yield Strength (0.2% Offset)** | 145-170 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 * **Good Electrical Conductivity**: Maintains adequate conductivity for electrical applications * **Limited Formability**: Suitable only for very simple bending operations * **Excellent Rigidity**: Superior dimensional stability and resistance to deformation **5. Product Applications** 1350-H18 is primarily supplied as wire, busbar, and conductors for demanding electrical applications. * **High-Strength Busbars**: Extra-stiff busbars for heavy-duty power distribution * **Transmission Conductors**: Overhead transmission lines requiring maximum tensile strength * **Electrical Machinery**: Components needing high rigidity and strength * **Supporting Conductors**: Structural elements in electrical switchgear and substations * **Power Cables**: Cable cores where maximum mechanical strength is required * **Electrical Hardware**: High-strength electrical connectors and components * **Industrial Applications**: Demanding electrical applications in harsh environments **6. International Standards** 1350-H18 is recognized under major international standardization systems. | Standard System | Designation | |-----------------|-------------| | **EN (Europe)** | EN AW-1350A H18 | | **IEC** | IEC 60104 | | **ASTM (USA)** | ASTM B230/B231 1350 H18 | | **UNS (USA)** | UNS A91350 H18 | | **JIS (Japan)** | A1350 H18 | | **GB (China)** | 1350 H18 | --- **Summary** **1350-H18 Aluminum Alloy** represents the **full-hard temper** in the 1350 aluminum series, providing the **maximum strength achievable through cold working** while maintaining adequate electrical conductivity. 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, tensile strength, and resistance to deformation are paramount in electrical systems. The combination of high strength characteristics with maintained electrical conductivity makes 1350-H18 an ideal choice for heavy-duty busbars, transmission conductors, and electrical components operating in demanding conditions where both mechanical integrity and electrical performance are essential requirements.

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 1485 gallon liquid totes Special package is available on request.