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Cryoperm

Cryoperm is a soft magnetic nickel-iron alloy with about 80 % nickel, 4.2 – 5.2 % molybdenum, a saturation induction of approx. 8000 Gauss, the highest technically obtainable permeability, (Max > 350,000) and a very low coercive force. Cryoperm exhibits very high permeability at very low induction, yielding superior magnetic shielding attenuation of low flux density magnetic fields.

In addition, Cryoperm is the magnetic shielding alloy of choice for cryogenic applications. Cryoperm exhibits very high permeability at 4.2 – 10 degrees Kelvin.

Cryoperm