8001-H18 Aluminum alloy,Aluminum 8001-H18 alloy，E FORU

### **Aluminum 8001-H18 Alloy Technical Datasheet** --- #### **1. Product Overview** **8001-H18** is a wrought aluminum alloy specifically designed for applications requiring excellent corrosion resistance and good formability. Unlike the more common 1000, 3000, or 5000 series alloys, 8001 belongs to a specialized category with unique composition characteristics. The H18 temper indicates the material has been heavily cold-worked to achieve the hardest temper normally available for this alloy, providing high strength while maintaining adequate formability for specific applications. --- #### **2. Chemical Composition (Weight %)** | Element | Composition Range | Typical Value | |---------|-------------------|---------------| | Aluminum (Al) | Balance | ≥98.5% | | Iron (Fe) | 0.5 - 1.0% | 0.7% | | Nickel (Ni) | 0.8 - 1.3% | 1.0% | | Silicon (Si) | ≤ 0.15% | 0.10% | | Copper (Cu) | ≤ 0.10% | 0.05% | | Manganese (Mn) | ≤ 0.10% | 0.05% | | Zinc (Zn) | ≤ 0.10% | 0.05% | | Other Elements | ≤ 0.05% each | - | **Key Features:** - Nickel addition provides improved strength and thermal stability - Controlled iron content for strength enhancement - Low copper and silicon for excellent corrosion resistance --- #### **3. Physical Properties** | Property | Metric Value | Imperial Value | |----------|--------------|----------------| | Density | 2.78 g/cm³ | 0.100 lb/in³ | | Melting Range | 645-655°C | 1193-1211°F | | Thermal Conductivity | 140 W/m·K | - | | Electrical Conductivity | 45% IACS | - | | Modulus of Elasticity | 69 GPa | 10.0 × 10⁶ psi | | Coefficient of Thermal Expansion | 23.6 × 10⁻⁶/°C | 13.1 × 10⁻⁶/°F | | Specific Heat Capacity | 900 J/kg·K | - | --- #### **4. Mechanical Properties** **Typical Properties in H18 Temper:** - **Tensile Ultimate Strength**: 150-180 MPa (22-26 ksi) - **Tensile Yield Strength (0.2% Offset)**: 130-160 MPa (19-23 ksi) - **Elongation in 50 mm**: 2-4% - **Shear Strength**: 90-110 MPa (13-16 ksi) - **Hardness (Brinell)**: 40-50 HB - **Fatigue Strength**: 60-70 MPa (9-10 ksi) - **Bearing Strength**: 220-260 MPa (32-38 ksi) --- #### **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 - **DIN 1725-1**: Wrought aluminum alloys - Chemical composition **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 - **EN 1396**: Aluminum and aluminum alloys - Coil coated sheet and strip for general applications --- #### **6. Product Applications** **Electrical & Electronics:** - Heat sink components - Electrical connector parts - Semiconductor manufacturing equipment - Electronic housing components - Battery casing materials **Thermal Management:** - Heat exchanger fins - Thermal transfer plates - Cooling system components - Heating element supports **General Engineering:** - Precision instrument components - Chemical processing equipment - Food processing machinery parts - Architectural trim components - Specialty packaging applications --- #### **7. Key Characteristics** **Advantages:** - Excellent corrosion resistance - Good thermal conductivity - Adequate electrical conductivity - Good formability in annealed conditions - Reasonable strength in hardened tempers - Good thermal stability - Nickel content provides unique property combination **Limitations:** - Limited availability compared to standard alloys - Higher cost than common aluminum alloys - Limited strength compared to other H18 temper alloys - Specialized processing requirements --- #### **8. Processing Characteristics** **Machining:** - Fair machinability rating: 40% (relative to 2011-T3=100%) - Recommended tools: Sharp high-speed steel or carbide - Cutting speeds: Moderate speeds with adequate cooling - Chip formation: Continuous chips requiring breakers **Forming:** - Best formability in O (annealed) condition - Limited cold forming capability in H18 temper - Annealing temperature: 345-415°C (650-775°F) - Hot working temperature: 260-425°C (500-800°F) **Joining:** - Good weldability using standard methods - Suitable for brazing and soldering - Can be adhesively bonded - Mechanical fastening requires care due to hardness --- #### **9. Corrosion Resistance** **Performance Characteristics:** - **Atmospheric Corrosion**: Excellent resistance - **Stress Corrosion Cracking**: Not susceptible - **Pitting Corrosion**: Good resistance - **Galvanic Corrosion**: Compatible with proper isolation - **Chemical Resistance**: Good resistance to many chemicals **Protection Methods:** - Chemical conversion coatings - Anodizing (produces good results) - Paint and powder coating - Usually used without protection in many applications --- #### **10. Heat Treatment & Tempers** **Available Tempers:** - **O (Annealed)**: Soft condition for maximum formability - **H12**: Quarter-hard strain hardened - **H14**: Half-hard strain hardened - **H16**: Three-quarter hard strain hardened - **H18**: Full-hard strain hardened **Heat Treatment:** - Non-heat-treatable alloy (strengthened by cold working only) - Annealing: 345°C (650°F) for 2-3 hours - Stress relief: 230-260°C (450-500°F) for 1-2 hours --- #### **11. Quality Assurance** **Testing Requirements:** - Chemical analysis verification - Mechanical property testing - Surface quality inspection - Dimensional verification - Corrosion testing when specified **Certification:** - Mill test certificate to applicable standards - Material traceability - Compliance with RoHS and REACH regulations - Customer-specific certifications available --- #### **12. Comparison with Similar Alloys** | Property | 8001-H18 | 1100-H18 | 3003-H18 | |----------|----------|----------|----------| | Tensile Strength (MPa) | 150-180 | 150-165 | 185-200 | | Yield Strength (MPa) | 130-160 | 150-165 | 170-185 | | Corrosion Resistance | Excellent | Excellent | Very Good | | Thermal Conductivity | Very Good | Excellent | Good | | Cost | Higher | Lower | Moderate | --- #### **Conclusion** Aluminum 8001-H18 alloy offers a unique combination of properties that make it particularly suitable for specialized applications in electrical, thermal management, and corrosion-resistant components. The nickel content distinguishes it from other aluminum alloys, providing enhanced strength and thermal stability while maintaining good corrosion resistance. While not as widely available as some standard aluminum alloys, 8001-H18 serves important niche applications where its specific property combination provides optimal performance. The H18 temper delivers the highest strength available for this alloy while maintaining sufficient workability for many industrial applications.

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 2220 gallon liquid totes Special package is available on request.