Product introduction

80% Nickel Permalloy is a soft magnetic alloy primarily composed of approximately 80% nickel and 15% iron, featuring ultra-high initial permeability and extremely low coercivity, making it one of the most excellent soft magnetic materials for weak magnetic field applications. Our 80% Nickel Permalloy bars are available in typical grades 1J79 and 1J85. Manufactured using vacuum melting and hot forging/hot rolling processes, our bars are offered in various specifications including round bars, square bars, and flat bars, suitable for various precision magnetic structures and electromagnetic components.

KEY FEATURES:

• Ultra-high initial permeability, μi up to 30,000–100,000+, offering extremely sensitive response in weak magnetic fields;

• Extremely low coercivity, Hc as low as 1.6 A/m, minimizing energy loss during magnetization and demagnetization;

• Near-zero magnetostriction, ensuring minimal dimensional change during magnetization and excellent dimensional stability;

• Excellent magnetic aging stability, with low magnetic performance degradation over long-term use;

• Resistivity of approximately 55–60 μΩ·cm, effectively reducing eddy current losses;

• Excellent machinability, supporting turning, milling, drilling, grinding, and other processing methods.

TYPICAL APPLICATIONS:

• Magnetic shielding structural components and mounting brackets, for magnetic shielding systems in precision electronic equipment, medical MRI devices, and avionics navigation instruments;

• Precision sensor cores and pole pieces, for fluxgate magnetometers, magnetoresistive sensors, and other weak magnetic field detection applications;

• Solenoid valves and magnetic circuit structural components, for high-sensitivity electromagnetic actuators and magnetic circuit systems;

• Military and aerospace structural components, for gyroscope shielding assemblies, satellite electromagnetic shielding components, and other demanding magnetic shielding applications.

Product type

Bars

Product specification model

Customizable according to requirements