8030-H221 Aluminum alloy,Aluminum 8030-H221 alloy，E FORU

### **Aluminum 8030-H221 Alloy Technical Datasheet** --- #### **1. Product Overview** **Aluminum 8030-H221** is a specialized wrought aluminum alloy from the 8000 series, supplied in a specific strain-hardened and partially annealed temper. The H221 temper indicates the material has been strain hardened to a quarter-hard level and then partially annealed to achieve improved formability while maintaining controlled strength properties. This alloy is particularly designed for electrical applications requiring optimal balance between conductivity, mechanical properties, and formability. --- #### **2. Chemical Composition (Weight %)** | Element | Composition Range | Typical Value | |---------|-------------------|---------------| | Aluminum (Al) | Balance | ≥98.8% | | Iron (Fe) | 0.25 - 0.45% | 0.35% | | Silicon (Si) | 0.15 - 0.30% | 0.22% | | Copper (Cu) | ≤ 0.05% | 0.03% | | Manganese (Mn) | 0.05 - 0.15% | 0.10% | | Zinc (Zn) | ≤ 0.05% | 0.03% | | Magnesium (Mg) | ≤ 0.05% | 0.03% | | Boron (B) | 0.01 - 0.04% | 0.02% | | Titanium (Ti) | ≤ 0.03% | 0.02% | | Other Elements (each) | ≤ 0.02% | - | | Total Other Elements | ≤ 0.08% | - | **Key Composition Features:** - Optimized for electrical conductivity applications - Enhanced purity with ultra-low copper content - Boron addition for improved conductivity and grain refinement - Specifically designed for H221 temper processing - Controlled impurity levels for consistent performance --- #### **3. Physical Properties** | Property | Metric Value | Imperial Value | |----------|--------------|----------------| | Density | 2.70 g/cm³ | 0.0975 lb/in³ | | Melting Range | 655-660°C | 1211-1220°F | | Thermal Conductivity | 220-230 W/m·K | - | | Electrical Conductivity | 58-62% 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 | 28-31 nΩ·m | - | --- #### **4. Mechanical Properties (H221 Temper)** **Typical Mechanical Properties:** - **Tensile Ultimate Strength**: 125-145 MPa (18-21 ksi) - **Tensile Yield Strength (0.2% Offset)**: 105-125 MPa (15-18 ksi) - **Elongation in 50 mm**: 14-18% - **Shear Strength**: 85-100 MPa (12-15 ksi) - **Hardness (Brinell)**: 38-48 HB - **Fatigue Strength**: 70-80 MPa (10-12 ksi) - **Bearing Strength**: 230-260 MPa (33-38 ksi) **H221 Temper Specific Characteristics:** - **Reduced Directional Properties** compared to H12 temper - **Improved Formability** over fully strain-hardened tempers - **Consistent Springback** characteristics - **Good Thermal Stability** - **Reduced Risk of Luders Lines** --- #### **5. International Standards** **Primary Specifications:** - **IEC 60228**: Conductors of insulated cables - **EN 573-3**: Aluminum and aluminum alloys - Chemical composition - **ISO 209**: Wrought aluminum and aluminum alloys **Electrical Standards:** - **IEC 60121**: International standard for electrical aluminum alloys - **ASTM B230**: Aluminum 1350-H19 Wire for Electrical Purposes - **BS 215**: Aluminum conductors in insulated cables **Temper Standards:** - **EN 515**: Aluminum and aluminum alloys - Temper designations - **ASTM B296**: Standard Practice for Temper Designations - **ISO 2107**: Aluminum temper designations --- #### **6. Product Applications** **Electrical Conductors:** - Building wire applications - Power distribution cables - Electrical motor windings - Transformer windings - Bus bar systems **Electrical Components:** - Electrical connector parts - Switchgear components - Circuit breaker parts - Electrical enclosure components - Power distribution equipment **Automotive Electrical:** - Automotive wiring systems - Electrical vehicle components - Sensor and control systems - Lighting system components - Power distribution modules **General Applications:** - Formed electrical components - Electrical hardware - Control system components - Instrumentation parts - General electrical fabrication --- #### **7. Key Characteristics** **H221 Temper Advantages:** - **Optimal Balance** of strength and formability - **Excellent Electrical Conductivity** - **Good Thermal Conductivity** - **Reduced Springback** compared to H12 temper - **Improved Forming Characteristics** - **Consistent Mechanical Properties** **Electrical Performance:** - **High Current Carrying Capacity** - **Low Electrical Losses** - **Stable Electrical Properties** - **Good Contact Resistance Characteristics** - **Reliable Long-term Performance** --- #### **8. Processing Characteristics** **Forming Operations in H221 Temper:** - **Good Bendability** - minimum bend radius: 1t - **Adequate Deep Drawing** capability - **Easy Roll Forming** characteristics - **Good Stamping** performance - **Reduced Springback** compared to H12 **Machining:** - Good machinability rating: 58% - Consistent chip formation - Recommended cutting speed: 120-250 m/min - Good surface finish achievable - Standard tooling requirements **Joining Methods:** - **Excellent Weldability** - all conventional methods - **Superior Brazing** characteristics - **Excellent Soldering** performance - **Good Compression Joint** performance - **Reliable Mechanical Connections** --- #### **9. Corrosion Resistance** **Performance Characteristics:** - **Atmospheric Corrosion**: Excellent resistance - **Oxidation Resistance**: Very good - **Stress Corrosion Cracking**: Not susceptible - **Galvanic Corrosion**: Requires proper design considerations - **Industrial Environment**: Good performance **Electrical Contact Properties:** - Stable contact resistance - Good surface oxide characteristics - Consistent electrical performance - Reliable long-term service --- #### **10. Thermal Treatment & Stability** **H221 Temper Process:** - Initial strain hardening to quarter-hard level - Partial annealing at controlled temperature - Stabilization to achieve final properties - Quality verification and testing **Service Temperature Range:** - Continuous service: Up to 150°C (300°F) - Good thermal stability for electrical applications - Minimal property changes at elevated temperatures - Suitable for most electrical service conditions --- #### **11. Quality Assurance** **Testing Requirements:** - Electrical conductivity verification - Mechanical property testing - Formability testing - Surface quality inspection - Dimensional accuracy verification **Certification:** - Mill test certificates with electrical properties - Material traceability documentation - Electrical performance certification - Compliance with international standards - Customer-specific requirements --- #### **12. Comparison with Similar Tempers** | Property | 8030-H221 | 8030-H12 | 8030-H22 | |----------|------------|-----------|-----------| | Tensile Strength (MPa) | 125-145 | 130-150 | 120-140 | | Yield Strength (MPa) | 105-125 | 110-130 | 100-120 | | Elongation (%) | 14-18 | 12-16 | 15-20 | | Electrical Conductivity (% IACS) | 58-62 | 58-62 | 58-62 | | Formability | Very Good | Good | Excellent | --- #### **Conclusion** Aluminum 8030-H221 alloy represents an optimized material solution for electrical applications requiring a precise balance between mechanical properties, formability, and electrical performance. The specialized H221 temper process provides more uniform mechanical properties and improved forming characteristics compared to standard strain-hardened tempers, while maintaining the high electrical conductivity essential for electrical applications. This combination makes it particularly valuable for building wires, power distribution components, and various electrical system applications where both reliable electrical performance and manufacturing efficiency are critical. The consistent quality and predictable behavior of 8030-H221 alloy ensure reliable performance in electrical applications, making it a preferred choice for engineers and manufacturers working with electrical power systems and components.

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 2247 gallon liquid totes Special package is available on request.