MuMetal wire offers important electromagnetic field shielding characteristics, including very high magnetic permeability - its ability to absorb magnetic energy. The unique properties of MuMetal wire results in the highest possible attenuation, making these shielding alloys the materials of choice for reducing low-frequency electromagnetic interference (EMI).
Wire: Diameter: 0.05mm-10mm. 0.02Inch-0.3937Inch
Material | Mu-metal |
Specifications | ASTM A-753, Alloy 4; MIL N-14411C Composition 1 |
Typical Chemistry (Wt.%) of MuMetal wire:
Ni | Fe | Mo | Cr | C | Mn | Si | P | S | Al | Co |
80.20 | Balance | 4.85 | 0.02 max | 0.015 | 0.50 | 0.30 | 0.005 max | 0.001 max | 0.01 max | 0.02 max |
Typical Annealed Properties of MuMetal wire:
|
Density | 0.316 lb/in3 (8.25g/cm3) |
Melting point | 2650°F (1454°C) |
Curie temperature | 860°F (460°C) |
0.2% Yield Strength | 49ksi(338MPa) |
Tensile Strength | 99ksi (682MPa) |
Electrical Resistivity | 47microhm cm |
Elongation | 32% in 2" (51 mm) |
Grain Size | ASTM 7 or finer(Mill annealed) |
Hardness | 15T 85 |
Uses and properties of MuMetal wire:
Mu-metal is used to shield equipment from magnetic fields. For example:
1.Electric power transformers, which are built with mu-metal shells to prevent them from affecting nearby circuitry
2.Hard Drives, which have mu-metal backings to the magnets found in the drive to keep the magnetic field away from the disk.
3.Cathode-ray tubes used in analogue oscilloscopes
4.Magnetic phonograph cartridges, which have a mu-metal case to reduce interference when LPs are played back
5.Magnetic resonance imaging equipment
6.The magnetometers used in magnetoencephalography and magnetocardiography
Photomultiplier tubes
7. Vacuum chambers for experiments with low-energy electrons, for example photoelectron spectroscopy
8.Superconducting circuits and especially Josephson junction circuits
Wire Further Processing | Cut to length Wire |
Flat Wire |
Square and Shaped Wire |
Rewinding and spooling |
Polishing and cleaning |
Packaging: Seal up, with plastic inside and wooden case or carton outside; or according to the customer's requirements.
Transportation: By air: Beijing International Airport OR By sea: Trianjin Seaport