8018 Aluminum alloy,Aluminum 8018 alloy，E FORU

### **Aluminum 8018 Alloy Technical Datasheet** --- #### **1. Product Overview** **Aluminum 8018** is a specialized wrought aluminum alloy from the 8000 series, designed primarily for electrical applications requiring optimized conductivity and mechanical properties. This non-heat-treatable alloy features a carefully balanced composition that provides an excellent combination of electrical conductivity, formability, and moderate strength, making it particularly suitable for electrical conductor applications and specialized electrical components. --- #### **2. Chemical Composition (Weight %)** | Element | Composition Range | Typical Value | |---------|-------------------|---------------| | Aluminum (Al) | Balance | ≥98.7% | | Iron (Fe) | 0.25 - 0.45% | 0.35% | | Silicon (Si) | 0.15 - 0.30% | 0.22% | | Copper (Cu) | ≤ 0.03% | 0.02% | | Manganese (Mn) | 0.05 - 0.15% | 0.10% | | Zinc (Zn) | ≤ 0.05% | 0.03% | | Magnesium (Mg) | ≤ 0.05% | 0.03% | | Boron (B) | 0.02 - 0.06% | 0.04% | | Titanium (Ti) | ≤ 0.03% | 0.02% | | Other Elements (each) | ≤ 0.02% | - | | Total Other Elements | ≤ 0.08% | - | **Key Composition Features:** - Ultra-low copper content for maximum electrical conductivity - Controlled iron and silicon for optimal conductivity-strength balance - Boron addition for grain refinement and conductivity enhancement - Specially optimized for electrical applications - Low impurity levels for consistent performance --- #### **3. Physical Properties** | Property | Metric Value | Imperial Value | |----------|--------------|----------------| | Density | 2.70 g/cm³ | 0.0975 lb/in³ | | Melting Range | 657-660°C | 1215-1220°F | | Thermal Conductivity | 225-235 W/m·K | - | | Electrical Conductivity | 60-63% IACS | - | | Modulus of Elasticity | 69 GPa | 10.0 × 10⁶ psi | | Coefficient of Thermal Expansion | 23.8 × 10⁻⁶/°C | 13.2 × 10⁻⁶/°F | | Specific Heat Capacity | 900 J/kg·K | - | | Electrical Resistivity | 27-29 nΩ·m | - | --- #### **4. Mechanical Properties** **Typical Properties in Various Tempers:** | Property | O Temper | H12 Temper | H14 Temper | H16 Temper | |----------|----------|-------------|-------------|-------------| | **Tensile Strength (MPa)** | 75-95 | 110-130 | 130-150 | 150-170 | | **Yield Strength (MPa)** | 25-40 | 90-110 | 110-130 | 130-150 | | **Elongation in 50 mm** | 30-40 | 14-18 | 10-14 | 6-10 | | **Hardness (Brinell)** | 20-30 | 32-42 | 40-50 | 48-58 | | **Shear Strength (MPa)** | 50-65 | 75-90 | 90-105 | 105-120 | | **Fatigue Strength (MPa)** | 35-45 | 55-65 | 70-80 | 80-90 | **Electrical Properties:** - **Volume Conductivity**: ≥60% IACS in all tempers - **Temperature Coefficient**: 0.00403/°C at 20°C - **Current Carrying Capacity**: Excellent - **Skin Effect**: Minimal at power frequencies --- #### **5. International Standards** **Primary Specifications:** - **EN 573-3**: Aluminum and aluminum alloys - Chemical composition and form of wrought products - **ISO 209**: Wrought aluminum and aluminum alloys - Chemical composition and forms of products - **IEC 60121**: International standard for electrical aluminum alloys **Electrical Standards:** - **IEC 60228**: Conductors of insulated cables - **ASTM B230**: Standard Specification for Aluminum 1350-H19 Wire for Electrical Purposes - **BS 215**: Aluminum conductors in insulated cables **Product Standards:** - **EN 485-2**: Aluminum and aluminum alloys - Sheet, strip and plate - **ASTM B209**: Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate --- #### **6. Product Applications** **Electrical Conductors:** - Power transmission lines - Electrical cable conductors - Bus bar systems - Transformer windings - Electrical motor components **Electrical Components:** - Electrical connector parts - Switchgear components - Circuit breaker parts - Electrical enclosure systems - Power distribution components **Electronics Applications:** - Heat sink components - Electronic housing - Battery connector systems - Power electronic components - Semiconductor manufacturing equipment **Specialized Electrical:** - Overhead power lines - Underground cable systems - Substation components - Electrical vehicle power systems - Renewable energy components --- #### **7. Key Characteristics** **Electrical Advantages:** - **High Electrical Conductivity** (60-63% IACS) - **Excellent Current Carrying Capacity** - **Good Thermal Conductivity** - **Low Electrical Losses** - **Stable Electrical Properties** **Mechanical Advantages:** - **Good Formability** in annealed condition - **Adequate Strength** for electrical applications - **Excellent Fatigue Resistance** - **Good Creep Performance** - **Reliable Long-term Performance** --- #### **8. Processing Characteristics** **Forming Operations:** - **Good Bendability** - suitable for cable forming - **Easy Roll Forming** for bus bar production - **Good Drawing Characteristics** for wire production - **Adequate Stamping** performance - **Consistent Forming** behavior **Machining:** - Good machinability rating: 50% - Produces clean, continuous chips - Recommended cutting speed: 100-220 m/min - Good surface finish achievable - Standard tooling requirements **Joining Methods:** - **Excellent Welding** characteristics - **Superior Brazing** performance - **Excellent Soldering** capability - **Good Compression Joint** performance - **Reliable Mechanical Connectors** --- #### **9. Corrosion Resistance** **Performance Characteristics:** - **Atmospheric Corrosion**: Excellent - **Oxidation Resistance**: Very good - **Galvanic Corrosion**: Requires proper design - **Crevice Corrosion**: Good resistance - **Industrial Atmosphere**: Good performance **Electrical Contact Properties:** - Stable contact resistance - Good oxide layer characteristics - Consistent surface properties - Reliable long-term performance --- #### **10. Heat Treatment & Tempers** **Available Tempers:** - **O (Annealed)**: Maximum conductivity and formability - **H12, H14, H16**: Strain-hardened for increased strength - **H19**: Extra hard for specific wire applications - **H22, H24**: Partially annealed for balanced properties **Annealing Process:** - Full annealing: 345°C (650°F) for 2-3 hours - Stress relief: 230-260°C (450-500°F) for 1-2 hours - Special annealing for optimal conductivity --- #### **11. Quality Assurance** **Electrical Testing:** - Conductivity verification per IEC 60468 - Resistivity measurements - Current carrying capacity testing - Surface quality inspection - Dimensional accuracy verification **Certification:** - Mill test certificates with electrical properties - Material traceability documentation - Electrical performance certification - Compliance with international electrical standards - Customer-specific electrical requirements --- #### **12. Comparison with Electrical Alloys** | Property | 8018-H14 | 1350-H14 | 1100-H14 | |----------|-----------|-----------|-----------| | Electrical Conductivity (% IACS) | 60-62 | 61-63 | 57-61 | | Tensile Strength (MPa) | 130-150 | 125-145 | 110-130 | | Formability | Very Good | Good | Excellent | | Typical Applications | Electrical components | Electrical conductors | General purpose | --- #### **Conclusion** Aluminum 8018 alloy represents a specialized electrical-grade aluminum material designed to provide an optimal balance of electrical conductivity, mechanical properties, and manufacturing characteristics. Its carefully controlled composition, featuring ultra-low copper content and optimized alloying elements, ensures maximum electrical performance while maintaining adequate strength for electrical applications. The alloy's excellent conductivity, combined with good formability and reliable long-term performance, makes it particularly valuable for power transmission, electrical components, and specialized electrical systems. The consistent quality and electrical properties of 8018 alloy ensure reliable performance in critical electrical applications, making it a preferred choice for engineers and designers working with electrical power systems and components where both electrical efficiency and mechanical reliability 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 2236 gallon liquid totes Special package is available on request.