There are moments in high-precision industries when even the slightest magnetic disturbance can bring an entire operation to a halt.
A misaligned reading in an MRI room, a fluctuating sensor in an aerospace test unit, or an unexpected EMI spike in a semiconductor line—these real-world disruptions cost time, money, and trust. That’s where DOMADIA™ FeNi80Mo5 (UNS N14080) quietly steps in—yet its impact is anything but quiet.
This alloy has become the gold standard for ultra-sensitive, low-frequency magnetic shielding, delivering stability, repeatability, and unmatched performance across demanding global industries.

What is DOMADIA™ FeNi80Mo5 (UNS N14080)?

DOMADIA™ FeNi80Mo5 is a high-permeability soft magnetic nickel-iron alloy, engineered specifically to attenuate low-frequency magnetic fields.
It is known globally as:

Alloy NameUNS NumberASTM StandardOther Standards
DOMADIA™ FeNi80Mo5N14080ASTM A753 Alloy 4MIL-N-14411C, DIN 17405, IEC 404, JIS C2531

This alloy is widely referred to as MuMetal—yet DOMADIA™ elevates it with advanced processing, tight quality control, and precision engineering.

It is also used alongside Permimphy, Cryophy, Copper, Brass, and Aluminum, depending on the desired shielding configuration.

Chemical Composition

ElementPercentage (%)
Nickel (Ni)~80%
Iron (Fe)Balance
Molybdenum (Mo)~5%
Manganese (Mn)≤ 1%
Silicon (Si)≤ 0.5%
Carbon (C)≤ 0.03%

This composition enables very high initial and maximum magnetic permeability, essential for low-frequency EMI attenuation.

Core Properties of DOMADIA™ FeNi80Mo5

Magnetic Properties

  • Extremely high initial permeability
  • High maximum permeability
  • Low coercive force
  • Excellent attenuation of low-frequency magnetic fields

Mechanical Properties

  • Good ductility
  • Easy to form into complex geometries
  • Suitable for deep drawing, stamping, welding

Thermal Properties

  • Low Curie temperature (critical during coating/finishing)
  • Predictable magnetic behavior across temperature changes

Corrosion Resistance

  • Enhanced by nickel content
  • Can be improved with plating or protective coatings

Available Shapes at DOMADIA™

DOMADIA™ supplies FeNi80Mo5 in multiple forms:

  • Sheets
  • Coils
  • Strips
  • Foils
  • Bars
  • CNC-machined parts
  • Custom fabricated housings & enclosures
  • Complete shielding assemblies

Comprehensive Manufacturing Process: From Design to Delivery

The strength of DOMADIA™ FeNi80Mo5 lies not only in the alloy, but in the process mastery behind every product.

1. Consultation & Magnetic Simulation

  • Expert project management
  • Magnetic modelling using COMSOL
  • Mechanical modeling with SolidWorks

2. Rapid Prototyping

  • Quick iterations based on required shielding factors
  • Selection of optimal thickness & geometry
  • Heat-treatment recommendations baked into early design

3. Custom Industrial Fabrication

Using advanced manufacturing techniques:

  • Laser cutting
  • TIG and laser welding
  • Stamping
  • Spinning
  • Sheet metal operations
  • CNC machining

DOMADIA™ ensures perfect magnetic continuity and minimal air gaps.

Heat Treatment: The Game-Changer for Shielding Performance

Heat treatment directly influences magnetic permeability.

DOMADIA™ uses:

  • Vacuum or hydrogen furnace annealing
  • Precisely controlled cycles
  • In-house and certified partner facilities
  • Internal SOPs ensuring consistent repeatability

Results:

  • Improved grain structure
  • Minimized mechanical stress
  • Maximum shielding efficiency

Surface Finishing & Protection

To prevent corrosion and avoid exceeding the Curie temperature, DOMADIA™ employs:

  • Nickel plating
  • Tin plating
  • Powder coating
  • Liquid coating
  • Special anti-oxidation finishes
  • Environmental protective layers

Each finish is engineered to preserve magnetic properties.

Quality Control & Traceability

DOMADIA™ implements industry-leading quality assurance:

  • Calibration via COFRAC-certified metrology labs
  • Detailed magnetic property testing
  • Dimensional inspection & 3D scanning
  • Mechanical and environmental tests
  • Full traceability from raw material to shipment

Packaging & Sustainability

Because FeNi80Mo5 shields are delicate, DOMADIA™ uses:

  • Custom protective crates
  • Anti-static, cushioned packaging
  • Recyclable shuttle boxes for recurring shipments

This reduces damage, cost, and long-term environmental footprint.

Applications of DOMADIA™ FeNi80Mo5

Used across industries that require ultra-sensitive magnetic shielding:

  • MRI Rooms & Medical Devices
  • Aerospace & Aviation Sensors
  • Semiconductor Fabrication Lines
  • Audio Engineering & High-End Acoustics
  • Quantum Computing & Cryogenic Systems
  • Power Electronics & Inverters
  • Telecommunication Equipment
  • Defense & Radar Systems
  • Transformers, Inductors, Magnetic Cores

Conclusion: The Future of Low-Frequency Shielding Belongs to DOMADIA™ FeNi80Mo5

From design and simulation to heat treatment, assembly, and packaging—DOMADIA™ FeNi80Mo5 (UNS N14080) stands as a complete magnetic shielding ecosystem, not just an alloy.

Focus Phrase:DOMADIA™ FeNi80Mo5 low-frequency magnetic shielding With unmatched permeability, precision manufacturing, and global standards compliance, it remains the ultimate choice for low-frequency magnetic shielding, protecting sensitive instruments and supporting next-generation engineering.

Ready to strengthen your low-frequency magnetic shielding?

Connect with DOMADIA™ and get engineered precision for every application.

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