A-6S Alnico Magnetic Material,E FORU

### **Product Introduction: A-6S Alnico Magnetic Material** **A-6S Alnico** is a high-performance anisotropic permanent magnet material that represents an enhanced version within the Alnico 6 family, offering superior magnetic consistency and improved mechanical properties. The "S" designation indicates a specialized formulation with optimized processing for enhanced structural integrity and more reliable magnetic performance, making it particularly suitable for applications requiring precise magnetic characteristics and long-term stability in challenging operating conditions. This advanced material maintains the fundamental advantages of traditional Alnico magnets while delivering improved consistency and reliability through controlled manufacturing processes and enhanced quality assurance measures. --- #### **1. Chemical Composition (Weight %)** The typical chemical composition of A-6S Alnico is as follows: | Element | Content (%) | |---------|-------------| | **Iron (Fe)** | Balance | | **Aluminum (Al)** | 7.8 - 8.8 | | **Nickel (Ni)** | 14.5 - 16.5 | | **Cobalt (Co)** | 23.8 - 25.5 | | **Copper (Cu)** | 3.0 - 3.9 | | **Titanium (Ti)** | 0.5 - 1.0 | | **Niobium (Nb)** | 0.9 - 1.6 | | **Silicon (Si)** | 0.15 - 0.45 | | **Other Elements** | ≤ 0.25 | --- #### **2. Physical & Magnetic Properties** **Magnetic Properties (Typical at 20°C):** | Property | Value (Typical) | Unit | |----------|-----------------|------| | **Residual Induction (Bᵣ)** | 10.2 - 10.8 | kG | | **Coercivity (Hᶜ)** | 1.75 - 1.95 | kOe | | **Intrinsic Coercivity (Hᶜⱼ)** | 1.85 - 2.05 | kOe | | **Maximum Energy Product ((BH)ₘₐₓ)** | 4.5 - 5.2 | MGOe | **Physical & Mechanical Properties:** | Property | Value | Unit | |----------|-------|------| | **Density** | 7.28 - 7.38 | g/cm³ | | **Coefficient of Thermal Expansion** | 11.5 - 12.2 | μm/m·°C | | **Curie Temperature** | 845 - 865 | °C | | **Maximum Operating Temperature** | 510 - 530 | °C | | **Vickers Hardness** | 530 - 610 | HV | | **Electrical Resistivity** | 80 - 98 | μΩ·cm | | **Compressive Strength** | 980 - 1180 | MPa | | **Flexural Strength** | 190 - 250 | MPa | | **Temperature Coefficient of Bᵣ** | -0.017 to -0.021 | %/°C | --- #### **3. Key Characteristics & Product Applications** **Key Characteristics:** - **Anisotropic Excellence**: Delivers optimal magnetic performance when magnetized along preferred orientation - **Enhanced Mechanical Properties**: Superior structural integrity and resistance to mechanical stress - **Excellent Thermal Stability**: Maintains magnetic properties at elevated temperatures up to 530°C - **Superior Consistency**: More uniform magnetic characteristics across production batches - **Good Corrosion Resistance**: Naturally stable in various environments without protective coatings - **Improved Coercivity**: Enhanced resistance to demagnetization compared to standard grades **Product Applications:** A-6S Alnico is particularly suitable for high-reliability applications requiring precise magnetic performance: - **Precision Instrumentation**: - Analytical instruments and laboratory equipment - Measurement and testing devices - Scientific research apparatus - Calibration equipment - **Industrial Control Systems**: - Process control sensors - Position detection systems - Speed measurement devices - Industrial automation components - **Aerospace Applications**: - Aircraft instrumentation - Navigation system components - Sensor applications - Control system elements - **Medical Equipment**: - Diagnostic device components - Medical instrument sensors - Therapeutic equipment - Laboratory analysis instruments --- #### **4. International Standards & Specifications** A-6S Alnico conforms to the following international standards: - **IEC 60404-8-1**: International standard for permanent magnet materials - **ASTM A894/A894M**: Standard specification for aged permanent magnet alloys - **ISO 17556**: International standard for permanent magnet materials - **Regional Standards**: - **Europe**: EN 10303 equivalent specifications - **Japan**: JIS C 2502 compliant - **China**: GB/T 17951.7 similar classification - **Industry Certifications**: - Meets industrial quality standards - Compliant with RoHS and REACH requirements - Suitable for precision instrument applications --- #### **Summary of Key Advantages** - **Enhanced Magnetic Consistency**: Superior batch-to-batch uniformity in magnetic properties - **Excellent Thermal Performance**: Reliable operation up to 530°C continuous service - **Improved Mechanical Strength**: Enhanced durability and structural integrity - **Superior Anisotropic Characteristics**: Optimal magnetic performance in preferred orientation - **Proven Reliability**: Long-term stability with minimal performance degradation - **Precision Performance**: Consistent magnetic characteristics for critical applications **Technical Note**: The A-6S grade maintains the anisotropic nature of Alnico materials while offering improved consistency and reliability through enhanced manufacturing controls. This makes it particularly suitable for applications where precise magnetic performance and long-term stability are essential. Proper orientation during magnetization is crucial to achieve optimal anisotropic properties. Like all Alnico materials, it requires diamond tools for machining and careful handling to prevent damage due to its brittle nature. The material's performance is optimized through precise heat treatment processes that ensure consistent magnetic characteristics.

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 3148 gallon liquid totes Special package is available on request.