WORLDWIDE MANUFACTURER and DISTRIBUTOR Since 1941Magnetic Shield Corporation, a division of Perfection Mica Company, is the premier supplier of custom magnetic shielding alloys and custom-built shields.
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All Categories > MuMETAL® Sheet and Foil 

MuMETAL® Sheet and Foil

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MuMETAL® Foil (MU004-8)


MuMETAL® Foil is used primarily in low intensity fields where the highest attenuation, highest initial permeability µ (Mu) and highest shielding efficiency are desired. MuMETAL® Foil is fully annealed and available in stock gauges from 0.002" to 0.010" thickness [0,05mm to 0,25mm].

Foils can be slit to a minimum width of 1/4" (6,35mm). Foil width tolerance is ±0.010" (0,25mm).

Unlike MuMETAL® Stress Annealed Sheet, our Foils do not require re-annealing unless severe forming or heliarc welding is performed.

Note: Priced per linear foot. Volume discounts available.

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MuMETAL® Stress Annealed Sheet (MU014-24-120)

MuMETAL® Stress Annealed Sheet

MuMETAL® is our most widely known brand, yet Magnetic Shield Corporation offers several other alloys which are used for similar, but different applications. MuMETAL® Stress Annealed sheet is used primarily in low intensity fields where high attenuation is desired (high initial permeability & high shielding efficiency). Available as stress annealed (partially annealed for ease of machinability). MuMETAL® is used for fabricated shields such as enclosures, cylinders, cans, channels or 3D boxes. Typically, atmospherically controlled Perfection Annealing is required after stamping, machining, bending, rolling or welding to provide maximum shielding performance.

MuMETAL® alloy is available in many forms, but most ...

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