Mu Metal Foil
Based in the UK, Magnetic Shields Limited has supplied magnetic shielding components and materials to a wide range of clients for over fifty years including industry, research, medical and many OEM’s.
Magnetic Shields holds the largest stock of shielding materials in Europe and can supply many different gauges of foil in cold rolled, stress annealed mu metal (80% Ni) to ASTM A753-97 Alloy 4 down to 0.05mm thickness direct from stock.
Mumetal foil is typically used in delicate applications where the highest permeabilities combined with the lowest coercive forces and magnetic losses in the low frequency range are required.
With in-house coil slitting machinery we can offer a wide range of custom slit widths* on foils to suit individual requirements
*Minimum width 6.35mm on 0.2mm material
Foils can also be offered with a magnesium methylate coating or self-adhesive backing. Please contact our sales team for further information and availability.
All of these materials are stress annealed for stamping/fabrication purposes and should receive a final anneal to achieve optimum magnetic properties after fabrication. Magnetic Shields can offer a full range of hydrogen heat treatment services and can supply sheet in final magnetic anneal condition in restricted lengths. If you wish to purchase foil in this condition please consult our sales team for information on the maximum length that can be heat treated in one piece and to gain advice on suitability for your particular application.
Magnetic Shields Limited is a registered ISO 9001:2008 company and all materials can be supplied with complete certificates of analysis and conformity upon request.
In addition to the supply of foils, sheet material, tubes and wires, Magnetic Shields can offer full in-house production of fabricated components including final heat treatment.
