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    AI Overview
    Mu-Metal Magnetic Shielding Explained | The Powerful ...
    Nickel-based MuMetal shielding cases, made from $\sim$80% nickel-iron alloy, provide high-permeability magnetic shielding for sensitive components like sensors and transformers. These cases attenuate low-frequency magnetic fields by providing a high-permeability path, redirecting magnetic flux around the shielded area. They are commonly used in round or rectangular forms to protect against EMI. 
    Key Features and Benefits 
    • High Permeability: MuMetal offers very high magnetic permeability (
      μmu
      𝜇
      ), often in the range of 80,000–100,000, making it far more effective than steel for redirecting magnetic field lines.
    • Material Composition: Typically composed of 77% to 82% nickel, along with iron and other elements.
    • Applications: Ideal for shielding sensitive electronics, medical devices, magnetic sensors, and transformers from low-frequency magnetic interference.
    • Design Flexibility: Available in various configurations, including 5-sided cans with lids, customized for component-level protection.
    • Effectiveness: These shields are particularly effective at redirecting magnetic fields rather than blocking them, acting as a "magnetic vacuum" to draw in flux. 
    Material Properties and Limitations 
    • Saturation: While highly effective, MuMetal saturates at a relatively low magnetic flux density (
      <0.5
      T
      ) compared to electrical steel.
    • Thickness Options: Common thicknesses for fabricated cans range from
      0.014
      in
      (
      0.36
      mm
      )
       up to
      0.062
      in
      (
      1.58
      mm
      )
      .
    • Fabrication: To maintain maximum shielding efficiency, MuMetal often requires annealing to restore its high-permeability properties after being stamped or formed. 
    For sourcing and technical specifications, explore options from Magnetic Shield Corporation or learn more about material selection from MuShield and Eagle Magnetic. For, low-cost options, you can review discussions on the EEVblog forum. 
    • Nickel Based Mu Metal Shielding Case - Hongertech.com
      Nickel Based Mu Metal Shielding Case. Small components regularly require shielding and HONGER manufactures a wide range of Mumetal...
      Jiangsu Hongyun Precision Industry Co., Ltd.
    • Shielding Cases / Boxes / Cans - Hongertech.com
      Mu Metal Shielding cans are typically manufactured from high permeability Mu Metal and provide excellent low frequency magnetic fi...
      Jiangsu Hongyun Precision Industry Co., Ltd.
    • MuMETAL® Cans & Lids
      MuMETAL® is a high permeability (µ) 80% nickel-iron shielding alloy. MuMETAL® shielding cans are available in standard round and r...
      Magnetic Shield Corporation
    Show all
    • Nickel Based Mu Metal Shielding Case - Hongertech.com
      Nickel Based Mu Metal Shielding Case. Small components regularly require shielding and HONGER manufactures a wide range of Mumetal...
      Jiangsu Hongyun Precision Industry Co., Ltd.
    • Shielding Cases / Boxes / Cans - Hongertech.com
      Mu Metal Shielding cans are typically manufactured from high permeability Mu Metal and provide excellent low frequency magnetic fi...
      Jiangsu Hongyun Precision Industry Co., Ltd.
    • MuMETAL® Cans & Lids
      MuMETAL® is a high permeability (µ) 80% nickel-iron shielding alloy. MuMETAL® shielding cans are available in standard round and r...
      Magnetic Shield Corporation
    • Mu-metal - Wikipedia
      Mu-metal typically has relative permeability values of 80,000–100,000 compared to several thousand for ordinary steel. It is a "so...
      Wikipedia
    • Low Cost Magnetic + Electrical Shielding Enclosure - EEVblog
      Aug 23, 2025 — To work as a shield, this larger B field must be less than the saturation B field (roughly 2 T for iron alloys or 0.5 T for nickel...
      EEVblog
    • 77 to 82% Nickel-Iron Alloys | VAC - Vacuumschmelze
      Highest Permeability for Demanding Magnetic Sensor and Shielding Applications. Sheets made of Nickel-Iron. In 77 % to 82% nickel i...
      vacuumschmelze (vac)
    • MuMetal Shielding Performance
      MuMETAL® High Permeability Magnetic Shielding Alloy ASTM A753. Shielding Fundamentals Magnetic shielding materials re-direct a mag...
      www.mu-metal.com
    • MuMETAL | K&J Magnetics Blog
      MuMETAL has a much higher permeability at lower magnetizing force, but saturates at a much lower flux density compared to steel. T...
      K&J Magnetics
    • Magnetic Motor - Shielding with MuMetal
      Feb 2, 2017 — hello viewers today I will try to explain you magnetic shielding. and I will show you that on Christopher Gitson magnetic motor my...
      5:01
      YouTube·Mario Gudec
    • Choosing the Right Material for Magnetic Shielding: MuMetal vs ...
      Nickel's resistance to corrosion means it holds up well in long-term use, especially in housings or enclosures exposed to heat, hu...
      eaglemagnetic.com
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    Web results

    Nickel Based Mu Metal Shielding Case


    Jiangsu Hongyun Precision Industry Co., Ltd.
    https://www.hongertech.com › nickel-based-mu-metal-s...
    Jiangsu Hongyun Precision Industry Co., Ltd.
    https://www.hongertech.com › nickel-based-mu-metal-s...
    HONGER manufactures a wide range of Mumetal shielding cases for protecting small devices from magnetic interference.Read more

    Low Cost Magnetic + Electrical Shielding Enclosure


    EEVblog
    https://www.eevblog.com › forum › metrology › low-c...
    EEVblog
    https://www.eevblog.com › forum › metrology › low-c...
    Aug 23, 2025 — Planning on creating my own custom magnetic + electrical shielding enclosure to perform more metrology-grade measurements.Read more

    MuMetal® Magnetic Shielding for Sensitive Environments


    Magnetic Shields USA
    https://magneticshields-usa.com › mumetal-magnetic-sh...
    Magnetic Shields USA
    https://magneticshields-usa.com › mumetal-magnetic-sh...
    MuMETAL® Foil is a fully annealed, high-permeability nickel iron alloy designed for applications requiring the highest magnetic attenuation and shielding ...Read more
    Videos
    MuMetal, Soft Magnetic Iron Nickel Alloy, FeNi80Mo5 ...
    YouTube · DALI ELECTRONICS
    Apr 21, 2023
    YouTube · DALI ELECTRONICS
    6:17
    Mu metal is a soft magnetic nickel-iron alloy with 80% nickel, 5% molybdenum, and balance iron, used for shielding against magnetic fields.
    DALI ELECTRONICS
    YouTube·
    Apr 21, 2023

    MuMetal, Soft Magnetic Iron Nickel Alloy, FeNi80Mo5 ...

    YouTube·DALI ELECTRONICS·Apr 21, 2023
    YouTube
    In this video
    • 01:58
      Heat Treatment
    • 03:43
      Frequently Asked Questions
    • 05:53
      Other Shielding Products
    How is Soft Magnetic Iron Nickel Alloy Commonly known as ...
    YouTube · DALI ELECTRONICS
    Sep 28, 2020
    YouTube · DALI ELECTRONICS
    1:59
    DALI ELECTRONICS
    YouTube·
    Sep 29, 2020

    How is Soft Magnetic Iron Nickel Alloy Commonly known as ...

    YouTube·DALI ELECTRONICS·Sep 29, 2020
    YouTube
    Test:9.5 Magnetizing Experiments : Testing Shielding ...
    YouTube · RWGresearch
    May 28, 2015
    YouTube · RWGresearch
    7:59
    Mu metal shielded a magnet, resulting in one side measuring 4.8 and the other 1.8 on a 20K meter.
    RWGresearch
    YouTube·
    May 29, 2015

    Test:9.5 Magnetizing Experiments : Testing Shielding ...

    YouTube·RWGresearch·May 29, 2015
    YouTube
    View all

    Web results

    Shielding Cases / Boxes / Cans


    Jiangsu Hongyun Precision Industry Co., Ltd.
    https://www.hongertech.com › shielding-cases-boxes-ca...
    Jiangsu Hongyun Precision Industry Co., Ltd.
    https://www.hongertech.com › shielding-cases-boxes-ca...
    Mu Metal Shielding cans are typically manufactured from high permeability Mu Metal and provide excellent low frequency magnetic field attenuation with low ...Read more

    4 Ways of Reducing Cost of Magnetic Shielding


    Integran Technologies
    https://www.integran.com › post › 4-ways-of-reducing-...
    Integran Technologies
    https://www.integran.com › post › 4-ways-of-reducing-...
    Feb 4, 2013 — MuMetal and other high nickel content specialty metal alloys are commonly used for high performance magnetic shielding (aka ELF shielding or ...

    77 to 82% Nickel-Iron Alloys | VAC


    vacuumschmelze (vac)
    https://vacuumschmelze.com › products › 77-to-82-nic...
    vacuumschmelze (vac)
    https://vacuumschmelze.com › products › 77-to-82-nic...
    Highest Permeability for Demanding Magnetic Sensor and Shielding Applications. Sheets made of Nickel-Iron. In 77 % to 82% nickel iron alloys ...Read more
    Missing: Mu ‎| Show results with: Mu

    Scholarly articles for Nickel Based Mu Metal Magnetostatic Shielding Case

    Passive magnetic shielding in MRI-Linac systems - ‎Whelan - Cited by 23
    … of static magnetic fields with Mu-metal cage shielding - ‎Bajtos - Cited by 3
    … and mechanical strain on Ni-Fe alloy CRYOPHY for … - ‎Arpaia - Cited by 17

    Web results

    MuMETAL® Cans & Lids


    Magnetic Shield Corporation
    https://www.magnetic-shield.com › mumetal-cans-lids-r...
    Magnetic Shield Corporation
    https://www.magnetic-shield.com › mumetal-cans-lids-r...
    We offer a wide range of standard MuMETAL® Shielding Cans in either ROUND or RECTANGULAR shapes. All MuCans are 5-sided and most sizes offer optional Lids.Read more

    Mumetal Shielding Box(982)


    Alibaba.com
    https://www.alibaba.com › ... › Paper Boxes
    Alibaba.com
    https://www.alibaba.com › ... › Paper Boxes
    Mu-metal should contain ~80% nickel with precise alloying elements for maximum permeability. Ensures optimal magnetic shielding performance; inferior alloys may ...Read more

    Mu metal


    Practical Machinist
    https://www.practicalmachinist.com › ... › General
    Practical Machinist
    https://www.practicalmachinist.com › ... › General
    Jun 16, 2009 — Mu-metal should have range of nickel-iron alloys, it should also notable for their high magnetic permeability. Normally it is composed of 76% nickel, 16% iron, ...Read more
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