Mu Metal


Mu Metal

Specifications

Specific Gravity 8.7g/cm
Curie Temperature 830°F (410°C)
Electrical Resistivity 349 ohm circ mil/foot 0.55 ohm mm²m
Density lb/cu.in 316
Thermal Conductivity 134 btu-inch/ft hour °F 0.32 W/cm °C

Mumetal is available in Mumetal wire, Mumetal Round bar, Mumetal Forged bar, Mumetal hex bar, Mumetal Flat bar, Mumetal Circles, Mumetal Ring, Mumetal Tube, Mumetal seamless Pipe, Mumetal Welded / ERW Pipe, Mumetal Sheet, Mumetal Plate, Mumetal Coil, Mumetal Flanges, Mumetal fasteners, Mumetal Socket weld Fittings, Mumetal ferrule fittings, Mumetal Buttweld fittings Like cap, elbow, tee, Reducer.

Mumetal is 80% nickel with additions of iron and molybdenum as main elements in turn this alloy offers an extremely high initial permeability. It is only moderately resistant to moisture and atmospheric corrosion, it used mainly in in transformer cores but is well known for its magnetic properties which are used for shielding electrical components from magnetic fields. "HYMU 80" has a minimum DC permeability of 80,000 at a flux density of 40 gauss when heat treated by the recommended procedure and test in accordance with ASTM 596

Physical Properties (Annealed Condition)

  • Coefficient of Thermal Expansion, in./in. °F x 10
  • 7.2in/in °F x 10-6 between 70 and 400F
  • 13cm/cm/ °C 10-6 between 30 and 204 °C


Specifications

  • Permalloy
  • HYMU 80
  • MAG 7904
  • MIL N 14411 C, COMP. 1
  • ASTM A753-78 and ASTM 596

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