New products are now offered in our MuMETAL® and Co-NETIC® brand lines, thinner foil, pressure sensitive adhesive foil, thicker plate form, and addition of a new material type CRYO-NETIC® Sheet.
- We stock the thinnest size .002” MuMETAL® Perfection Annealed Foil either uncoated, or our new MUT Series gauges with thick acrylic adhesive backing. Application use is primarily for low intensity fields where the highest attenuation, and highest initial permeability µ (Mu) is required.
- Our new line MuMETAL® Stress Annealed Plate thickness ranges from 0.098″ to 0.197″. Plates are stress annealed or partially annealed for ease of machinability and fabrication. MuMETAL® alloy is used for fabricated shields such as enclosures, cylinders, cans, channels or 3D boxes. MuMETAL® conforms to ASTM A753 Alloy 4, and MIL-N-14411C Comp 1.
- Co-NETIC® B Stress Annealed Plate, our new sheet form offered in thicker gauges is useful when medium permeability is needed. Select stock gauges from 0.020″ to 0.098″ are stress annealed for ease of tooling, manufacturing, and fabrication. Co-NETIC® B conforms to ASTM A753 Alloy 2, and MIL-N-14411C Comp 3.
- CRYO-NETIC® is our proprietary nickel-iron soft magnetic alloy that is ideal for shielding unwanted magnetic fields at extremely low temperatures, typically 77 Kelvin (liquid nitrogen) and 4 Kelvin (liquid helium). High energy physics research applications are conducted under cryogenic temperatures requiring shielding with increasing permeability as temperature decreases. Stress Annealed Sheets are soft tempered for ease of fabricating shields.
For stress annealed alloys, atmospherically controlled Perfection Annealing is required as a final process after severe stamping, bending, welding or other processes. Our proprietary hydrogen furnace heat treatment is critical to achieving the maximum magnetic shielding properties.
Contact our Shielding Engineer Don with technical questions.
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