Block Alnico Magnet is composed primarily of Aluminum, Nickel. Cobalt, Copper and Iron. It have very good corrosion resistence and high max working temperature, can reach 550deg C. Although other materials offer greater energy and coercivity values, the high remanence and thermal stability of Alnico makes it the most cost effective material for certain applications, like generator, microphone lifting, voltmeters and measuring instruments. It is widely applied in high stability fields as aerospace, military, automobiles and security
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High Performance block Alnico Magnet is desirable for their high residual induction, high energies, corrosion resistance, and for the fact that they have the widest temperature stability out of any standard magnetic material.

• High performance block Alnico magnet  is known for their excellent temperature stability, high magnetic strength, and resistance to corrosion. Here are the typical technical parameters for  block Alnico magnets:
• 1. Material Composition: – Aluminum (Al): 8-12% – Nickel (Ni): 15-26% – Cobalt (Co): 5-24% – Copper (Cu): 6% – Iron (Fe): Balance – Titanium (Ti) or Niobium (Nb) may be included in small amounts to enhance specific properties.
• 2. Magnetic Properties: – Residual Induction (Br): 6,500 – 13,500 Gauss (0.65 – 1.35 Tesla) – Coercive Force (Hc)**: 640 – 1,800 Oersteds (51 – 143 kA/m) – Intrinsic Coercive Force (Hci)**: 600 – 1,200 Oersteds (48 – 95 kA/m) – Energy Product (BHmax)**: 5.5 – 9.5 MGOe (43.75 – 75.6 kJ/m³)
• 3. Physical Properties: – Density: 7.3 g/cm³ – Electrical Resistivity: 47 μΩ·cm – Thermal Conductivity: 46 W/(m·K) – Melting Point: ~1,350°C
• 4. Temperature Stability: – Maximum Operating Temperature: up to 540°C (1,004°F) – Curie Temperature: 850 – 900°C (1,562 – 1,652°F) – Alnico magnets exhibit minimal loss of magnetic properties over a wide temperature range, maintaining about 90% of their room-temperature magnetization at temperatures up to 500°C (932°F).
• 5. Mechanical Properties: – Hardness: Rockwell C 50-55 – Tensile Strength: 450 – 700 MPa – Compressive Strength: 700 – 1000 MPa
• 6. Tolerance: – Typical machining tolerance for Alnico magnets is ±0.1mm, but this can vary based on specific requirements and manufacturing capabilities.
• These parameters can vary depending on the specific grade of High Performance blcok Alnico Magnet and the manufacturer. Alnico magnets are often chosen for applications where high-temperature stability and strong magnetic performance are crucial, such as in electric motors, sensors, loudspeakers, and various types of scientific instruments.
• High performance block Alnico magnets are used in various applications that require strong magnetic fields, excellent temperature stability, and durability. Key applications include:
• 1. Electric Motors and Generators: High Performance block Alnico Magnets  are commonly used in high-performance electric motors and generators, particularly in applications where high temperature stability is crucial, such as in aerospace and industrial machinery.
• 2. Sensors and Actuators: Due to their stable magnetic properties over a wide temperature range, High Performance block Alnico Magnets  are used in various sensors and actuators, including those in automotive, aerospace, and industrial automation systems.
• 3. Loudspeakers and Audio Equipment:High Performance block Alnico Magnets  are favored in high-quality loudspeakers, headphones, and other audio equipment for their ability to produce clear, high-fidelity sound.
• 4. Magnetic Separators: In industrial applications, High Performance block Alnico Magnets  are used in magnetic separators to remove ferrous contaminants from materials, ensuring product purity in industries such as food processing and pharmaceuticals.
• 5. Magnetic Assemblies: They are utilized in custom magnetic assemblies where high performance and reliability are essential, such as in scientific instruments, magnetic chucks, and holding devices.
• 6. Measuring Instruments: High Performance block Alnico Magnets are integral to various measuring instruments and devices, including magnetometers and other magnetic field measuring equipment, due to their precision and stability.
• 7. Automotive Industry: These High Performance block Alnico Magnets are used in various automotive applications, including ignition systems, speedometers, and tachometers, where durability and temperature stability are required.
• 8. Medical Devices: High Performance block Alnico Magnets are used in certain medical devices and instruments, where consistent magnetic performance is necessary under varying temperature conditions.
• 9. Relays and Switches: In electrical engineering, High Performance block Alnico Magnets are used in relays and switches, providing reliable performance and high durabil…