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The main materials used for shieldings are:
- Supermumetal for applications in low fields requiring high permeability.
- Mumetal for conventional shielding applications in low fields (a few mT max) where a good attenuation is required.
- Iron-nickel alloys (36% or 50%) for shields in weak or strong fields with an intermediate attenuation.
- Pure iron for strong fields.
- Cryomumetal for shields operating at very low temperatures (a few Kelvin)
- Cobalt iron or silicon iron is sometimes used, but in very specific cases.
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The main thicknesses are:
- Low thickness: 25 micron, 0.1 mm
- Classic thickness: 0. 35 mm, 0.5 mm, 0.63 mm, 0.8 mm, 1 mm
- Large thicknesses: 1.5 mm, 2 mm and 3 mm
The main formats are:
- Width: 10 to 660 mm
- Length: made upon request but within a maximum of 2 meters in the form of a plate.
Other materials used:
- MMc regularly works with stainless steel, aluminium and sometimes copper
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