General Description

Permalloy 80 is a nickel-iron-molybdenum alloy with very high initial and maximum magnetic permeabilities and minimal core losses at low field strengths. This vacuum-melted product also offers the advantages of small size and weight in magnetic core and shielding materials. Due to its high magnetic permeability it is used in manufacturing transformers and inductors.

It's also used as a component for both saturating and non-saturating application. NiWire can not only produce E.I laminations, magnetic-shielding cases but also strip-wound cores. All of which are processed to optimize the excellent magnetic characteristics of permalloy.

Chemical Composition

Grade Ni% Mo% Fe%
Permalloy 80 78.5-80.0 3.8-4.1 Bal.

Physical Properties

Grade Density Melting Point Curie Specific Heat
Permalloy 80 8.7 g/cm3 1450 °C 420 °C 460 J/g•℃

Magnetic Properties

Grade Saturation induction
Bs/T
Rs
Br/Bm
Curie Temp
Tc/℃
Coercive force
Hc/A·m-1
Initial Permeability
mH·m-1
Max Permeability
μm/mH·m-1
Resistivity
μΩ·cm
Permalloy 80 0.75 450 4.8 15-32 87.5-275 55

Size Range

Permalloy 80 wire, rod, strip, sheet, tube are available.

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