Nickel Vanadium Permendur (tm)

Annealing Procedure

This is a 49% Ni/ Co alloy with 2% vanadium. It possesses excellent magnetic and physical properties including high saturation flux density, low DC coercive force and high permeability at high inductions.

Applications

This alloy is used in motor laminations, transducers, poles and cores as well as transformer and head laminations.

Cold Workability

This material has a very high work hardening rate.

Formability

Due to its high cobalt content, this alloy can be quite difficult to form.

Heat Treatability

For optimum properties, it is essential that proper post work annealing be performed. Heat to 1540 F for 2 hours in pure hydrogen and cool slowly at a rate of 180 to 200 F per hour. Temperatures above 1600 F will cause damage to the material's potential properties.

Machinability

Generally not produced in machinable forms.

Principle Design Features

Soft magnetic alloy, 49% Fe-, 9% Co, 2% V. Very easily cracked in forging.