Mu Metal Vs Ferrite Sheet

6 3 10 2.

Mu metal vs ferrite sheet.

Iron 99 8 pure 6 3 10 3. A ratio used to measure the effectiveness of a given shield. You want to see a weaker magnetic field on the far side of the metal. The first is permeability.

Mu metal is a unoriented nickel iron soft ferromagnetic alloy with very high permeability suitable for sensitive electronic equipment shielding. Anything below 0 020 thick is difficult to weld other than with spot welding. Magnetic capabilities and mechanical properties of mu metal. The treatment of a metal alloy or other material by heating to a predetermined temperature holding for a certain time and then cooling to room temperature.

Ferromagnetism is derived from the unpaired electron spins in only a few metal atoms these being iron cobalt nickel manganese and some rare earth elements. The resulting field strength at the. One such composition is approximately 77 nickel 16 iron 5 copper and 2 chromium or molybdenum. You should keep that in mind making your selection.

Mumetal doesn t block as much field strength as regular steel. The difference in properties and performance of ferrites as compared with most other magnetic materials is due to the fact that the ferrites are oxide materials rather than metals. Although mu metal comes in various thicknesses it is a rather soft material and may prove to be difficult to work with if it is too thin. For example let s say you place a sheet of metal right next to a neodymium magnet.

For pefect shielding of magnetic field of neodymium magnet use 10 layers of our 0 35mm thickness mumetal. Mumetal magnetic shielding alloy mu metal grade astm a753 alloy 4 uns n14080 80nife is our most widely known brand. 2 5 10 2. The ratio is expressed as the field strength at a given point vs.

In this particular case steel is usually the better choice. 4000 failed verification at 0 002 t ferritic stainless steel annealed 1 26 10 3 2 26 10 3. Mumetal nickel permalloy sheet for magnetic field shielding 0 2t 30 90cm. More recently mu metal is considered to be astm a753 alloy 4 and is.

Mumetal chemical composition in weight nickel ni 80 82 molybdenum mo 3 5 6. Ferrite magnet 300g. Our mu metal items on ebay. At 0 002 t cobalt iron high permeability strip material 2 3 10 2.