Soft Magnetic Alloys with Constant Permeability

1J66

Soft magnetic alloys with constant permeability have little change in permeability in a wide range of magnetic field temperature and frequency. Used for manufacturing constant inductance components.

Chemical Composition, %

AlloyCPSSiMnNiFe
1J66≤0.03≤0.02≤0.02≤0.100.70-1.1064.5-65.5Rest

Magnetic Properties

AlloyThickness, mmClassPermeability induction, μL(mH/m)Ac stable value
α ~%
Ac/Dc stable value
α ~%
Temp. Stable value
αT%
1J660.05-0.10
≥2800(3.50)
≥3000(3.75)
≤10
≤7
≤9
≤6
≤8
≤5

Typical Physical Constants and Mechanical Properties

AlloyDensity, g/cm3Curie Point, Tensile Strength, MPaYield Strength, MPaElongation, %
1J668.25600

Available Products and Specifications

Rod, Bar, Wire and ForgingsGB/T 15003-94, GB/T 32286.1-2015
Plate, Sheet and StripGB/T 15003-94, GB/T 32286.1-2015
Pipe and TubeGB/T 15003-94, GB/T 32286.1-2015
Welding Product
Others

Features

In a relatively wide magnetic interpolation range, a certain wide temperature and frequency range, the permeability is basically unchanged.

Applications

Constant inductance coil and filter choke core, broadband transformer core and medium power monopole pulse transformer core.