Logo
ProductsAbout UsCapabilitiesServicesIndustryInvestorsBlogsCareersContact

Foils/Sheets/Cable Shields

MuMETAL® Stress Annealed Sheet

High-Performance Magnetic Shielding for Sensitive Applications

Home Banner
Mobile Banner

Unmatched Shielding Performance in Low-Intensity Magnetic Fields

Precision stress-annealed for formability, ideal for fabrication of enclosures, cylinders, cans, and custom 3D shielding boxes.

The Fabrication Journey of MuMETAL® Shields

MuMETAL® Stress Annealed Sheets are partially annealed for ease of machining, bending, and shaping. These sheets must undergo final Perfection Annealing after fabrication for maximum magnetic performance.

1

Raw Material

High-grade MuMETAL® alloy is designed for high initial permeability and shielding efficiency in low-field environments.

2

Cutting & Forming

Sheets are cut and shaped into custom forms like boxes, cans, and shields using standard fabrication tools.

3

Welding or Stamping

Parts are joined or formed to meet precise enclosure designs. Post-fabrication annealing is recommended to restore shielding properties.

4

Final Annealing

A critical step—perfection annealing in an atmospherically controlled environment maximizes magnetic properties and shielding performance.

5

Inspection

Each shield is checked for dimensional integrity, surface condition, and material thickness uniformity.

6

Packing

Sheets and finished parts are carefully packed to prevent damage or deformation.

7

Dispatch

Parts are dispatched to meet your timelines-ready for integration in critical applications.

Benefits

Advantages of Using MuMETAL® Stress Annealed Sheets

1

Exceptional Magnetic Shielding

High initial permeability delivers superior attenuation in low-frequency magnetic fields.

2

Precision Fabrication-Ready

Partially annealed for easier stamping, machining, or shaping-before final annealing.

3

Versatile Applications

Ideal for enclosures in medical devices, transformers, sensors, and audio systems.

4

Thin Gauge Options

Available in gauges from 0.014" to 0.062" for design flexibility and performance.

5

Sustainable & Recyclable

MuMETAL® supports sustainable manufacturing with full recyclability and low environmental impact.

Sheet Availability

Available in multiple thicknesses, sizes, and item codes for design flexibility.

MuMETAL® Stress Annealed Sheet of Thickness 0.014
Item #ThicknessWidthLength
inches[mm]inches[mm]inches[mm]
MU014-12-1200.0140.355612.00304.81203048
MU014-12-600.0140.355612.00304.8601524
MU014-12-300.0140.355612.00304.830762
MU014-12-150.0140.355612.00304.815381
MU014-24-1200.0140.355624.00609.61203048
MU014-24-600.0140.355624.00609.6601524
MU014-24-300.0140.355624.00609.630762
MU014-24-150.0140.355624.00609.615381

MuMETAL® Stress Annealed Sheet of Thickness 0.020

MuMETAL® Stress Annealed Sheet of Thickness 0.020
Item #ThicknessWidthLength
inches[mm]inches[mm]inches[mm]
MU020-12-1200.0200.50812.00304.81203048
MU020-12-600.0200.50812.00304.8601524
MU020-12-300.0200.50812.00304.830762
MU020-12-150.0200.50812.00304.815381
MU020-24-1200.0200.50824.00609.61203048
MU020-24-600.0200.50824.00609.6601524
MU020-24-300.0200.50824.00609.630762
MU020-24-150.0200.50824.00609.615381

MuMETAL® Stress Annealed Sheet of Thickness 0.025

MuMETAL® Stress Annealed Sheet of Thickness 0.025
Item #ThicknessWidthLength
inches[mm]inches[mm]inches[mm]
MU025-12-1200.0250.63512.00304.81203048
MU025-12-600.0250.63512.00304.8601524
MU025-12-300.0250.63512.00304.830762
MU025-12-150.0250.63512.00304.815381
MU025-24-1200.0250.63524.00609.61203048
MU025-24-600.0250.63524.00609.6601524
MU025-24-300.0250.63524.00609.630762
MU025-24-150.0250.63524.00609.615381

MuMETAL® Stress Annealed Sheet of Thickness 0.030

MuMETAL® Stress Annealed Sheet of Thickness 0.030
Item #ThicknessWidthLength
inches[mm]inches[mm]inches[mm]
MU030-12-1200.0300.76212.00304.81203048
MU030-12-600.0300.76212.00304.8601524
MU030-12-300.0300.76212.00304.830762
MU030-12-150.0300.76212.00304.815381
MU030-24-1200.0300.76224.00609.61203048
MU030-24-600.0300.76224.00609.6601524
MU030-24-300.0300.76224.00609.630762
MU030-24-150.0300.76224.00609.615381

MuMETAL® Stress Annealed Sheet of Thickness 0.040

MuMETAL® Stress Annealed Sheet of Thickness 0.040
Item #ThicknessWidthLength
inches[mm]inches[mm]inches[mm]
MU040-12-1200.0401.01612.00304.81203048
MU040-12-600.0401.01612.00304.8601524
MU040-12-300.0401.01612.00304.830762
MU040-12-150.0401.01612.00304.815381
MU040-24-1200.0401.01624.00609.61203048
MU040-24-600.0401.01624.00609.6601524
MU040-24-300.0401.01624.00609.630762
MU040-24-150.0401.01624.00609.615381

MuMETAL® Stress Annealed Sheet of Thickness 0.050

MuMETAL® Stress Annealed Sheet of Thickness 0.050
Item #ThicknessWidthLength
inches[mm]inches[mm]inches[mm]
MU050-12-1200.0501.2712.00304.81203048
MU050-12-600.0501.2712.00304.8601524
MU050-12-300.0501.2712.00304.830762
MU050-12-150.0501.2712.00304.815381
MU050-24-1200.0501.2724.00609.61203048
MU050-24-600.0501.2724.00609.6601524
MU050-24-300.0501.2724.00609.630762
MU050-24-150.0501.2724.00609.615381

MuMETAL® Stress Annealed Sheet of Thickness 0.062

MuMETAL® Stress Annealed Sheet of Thickness 0.050
Item #ThicknessWidthLength
inches[mm]inches[mm]inches[mm]
MU050-12-1200.0501.2712.00304.81203048
MU050-12-600.0501.2712.00304.8601524
MU050-12-300.0501.2712.00304.830762
MU050-12-150.0501.2712.00304.815381
MU050-24-1200.0501.2724.00609.61203048
MU050-24-600.0501.2724.00609.6601524
MU050-24-300.0501.2724.00609.630762
MU050-24-150.0501.2724.00609.615381

Properties That Matter

Balanced Magnetic & Mechanical Performance

Stress-annealed MuMETAL® sheets offer an excellent balance of workability and shielding, ideal for intricate part fabrication requiring maximum permeability post-anneal.

1

High magnetic permeability

2

Low coercivity

3

Controlled mechanical strength

4

Stable grain structure for precision forming

5

Uniform thickness and flatness

Trust Precision & Performance

From MRI rooms and magnetometers to audiophile-grade electronics and aerospace shielding, MuMETAL® Foil is trusted globally for performance in high-sensitivity environments.

ISO 45001

ISO 45001

Occupational Health and Safety (OH&S) management systems

ISO 14001

ISO 14001

Environmental Management Systems (EMS)

ISO 9001

ISO 9001

Quality Management Systems (QMS)

IATF 16949

IATF 16949

International Standard for Automotive Management Systems

AS 9100

AS 9100

Aerospace Quality Management System (QMS)

Frequently Asked Questions

MuMETAL® is a nickel–iron soft magnetic alloy designed for maximum magnetic permeability and low coercivity, ideal for shielding low-frequency magnetic fields.

Related Products

University Lab Kit

University Lab Kit

Academic-Grade Magnetic Shielding Prototyping Kit

Basic Magnetic Shield Lab Kit

Basic Magnetic Shield Lab Kit

Your First Step to Hands-On Magnetic Shielding Prototyping

AC Probe-Axial 60 MV

AC Probe-Axial 60 MV

Precision AC Magnetic Field Probe with Axial Sensitivity

AC Probe-Transverse 60 MV

AC Probe-Transverse 60 MV

Precision AC Magnetic Field Probe with Transverse Sensitivity

Request a Quote

Pioneering cutting-edge technology to develop reliable, high-performance magnetic components and engineering solutions.