properties of vanadium permendur

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Super Alloy Vanadium Permendur

Chemistry Data

Cobalt

Iron

Vanadium

General Information

Principal Design Features

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

Applications

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

Machinability

Generally not produced in machinable forms.

Forming

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

Heat Treatment

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.

Cold Working

This material has a very high work hardening rate.

Annealing

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.

Physical Data

Density (lb / cu. in.)

0.292

Mean Coeff Thermal Expansion

9.8

Mechanical Data

Form

Strip

Condition

Annealed

Temper

70

Tensile Strength

175

Yield Strength

185

Elongation

1

Brinnell

35