Why is Mumetal® so expensive?
There are two reasons why high permeability magnetic shielding materials are expensive relative to other alloys: 1) It is an alloy made up primarily of nickel (80%), and 2) it is made in relatively small batches by a handful of specialty steel mills around the world. When the application permits, we will recommend other lower cost alloys for shielding. High permeability materials are the best materials for redirecting and absorbing magnetic flux.
