Thin and ultra-thin magnetized and non-magnetized metals


Proven in the most demanding applications


Efficiency gains for your motor and transformer designs

Ultra Thin Gauge Alloy Strip and Foil

The Precision Thin Metals (PTM) division of Arnold Magnetic Technologies produces thin and ultra-thin alloys that improve the power density of motors, transformers, batteries and many other applications in automotive, aerospace, energy exploration, industrial and medical markets.

For example, our Silicon Steels improve the power density of motors and transformers, our ultra-thin Ni, Al and Cu are facilitating the development of tomorrow’s batteries, while our thin Titanium strip is both strengthening and lightening components used in the aerospace industry.


Thinness is a relative term and we’re often asked how we categorize the end-product’s thinness or gauge. We define thin and ultra-thin this way:

Thin gauge

0.060″ to 0.0005″
1.524mm to 0.013mm

Ultra-Thin / Foil

0.00049″ to 0.000069″
0.01245mm to 0.00175mm

Arnold’s Precision Thin Metals manufacturing processes allow us to control the properties of a wide range of materials to meet your required specifications. Our metallurgists and engineers are experienced in designing solutions for your most demanding applications.

The Precision Thin Metals division is ISO 9001, AS9100, and Nadcap certified for heat treatment, demonstrating our commitment to quality processes and continuous improvement.

Arnold is your non-traditional trusted partner, registered with ITAR and can adhere to DFARS clauses.


  • Titanium Foils and Alloys

    Titanium Foils and Alloys

    The exceptional characteristics for high overall strength, biocompatibility, corrosion resistance, and workability make titanium ideal for hundreds of applications ranging from E-beam shielding to drug delivery to aerospace surfaces and structures. Titanium sheet and foil materials are available in a number of grades.

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  • Stainless Steel & Its Alloys

    Stainless Steel & Its Alloys

    Excellent corrosion resistance and good workability make stainless steel the obvious choice for commercial and defense aviation devices, precision instruments and components, solar panels and other energy generation apparatus and more. It’s rolled to precise tolerances for thinness and flatness.

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  • Nickel Irons & Soft Magnetics

    Nickel Irons & Soft Magnetics

    Thin-rolled nickel-iron alloys and soft magnetic materials used for efficient energy storage and transfer. Nickel-iron alloys are characterized by relatively high permeability and low core losses. Their overall high saturation flux density means high performance energy storage and transfer over low to middle frequencies.

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  • Nickel & Its Alloys

    Nickel & Its Alloys

    High quality grades of nickel and nickel alloys rolled and fabricated to meet the most demanding specifications. Nickel is ideal for applications ranging from rechargeable battery technologies to microphone capsules to strain gauges, instrumentation sensors, gaskets, motor valves, and other devices.

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  • Inconel


    Known for its strength, and high temperature and corrosion resistance, makes it an excellent material choice for many applications in the aerospace and chemical industries including: aviation thrust reversers and ductwork, industrial pressure sensors and gauges, and sodium sulfide manufacturing applications.

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  • Grain Oriented Electrical Steel (GOES)

    Grain Oriented Electrical Steel (GOES)

    Arnold Magnetic Technologies’ thin Grain Oriented Electrical Steel (GOES) is 3% silicon steel which is processed under carefully controlled conditions. Arnold produces GOES from several different grades of Silicon steel, all of which are produced in the USA and are DFARS compliant.

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  • Copper & Copper Alloys

    Copper & Copper Alloys

    Thin-rolled copper and copper alloys serve a broad range of needs. This versatile material is used in a variety of electrical products, heat exchangers, solar collectors, piping and other applications that require strength and corrosion resistance.

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  • Carbon Steel

    Carbon Steel

    High quality thin and ultra- thin carbon steel comes in various grades, rolled to precise tolerances for thinness and flatness. Its excellent workability makes carbon steel the obvious choice in numerous commercial, automotive and defense applications.

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  • Arnon (NGOES) Electrical Steel

    Arnon (NGOES) Electrical Steel

    Arnold Magnetic Technologies Non Grain Oriented (NGOES) Electrical Steels optimized by thickness and finish to meet your most demanding needs for high speed, high efficiency motors and high efficiency transformer applications. When optimally applied, NGOES offers reduced eddy currents which translate into energy savings.

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  • Aluminum & Its Alloys

    Aluminum & Its Alloys

    Thin-rolled aluminum and aluminum alloys are versatile and lightweight and used in a variety of electrical products packaging and other applications. Aluminum is often the best solution when reduced weight, good conductivity, and high formability are desirable characteristics.

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Precision Thin Metals and Materials

Call or message your Arnold representative today.


Arnold’s world-class team of Engineers, Designers, and Project Managers direct the production of products and assemblies at our facilities. You will receive outstanding support at every stage of your project, no matter what material you choose or how complex your design.


The thin and ultra-thin alloys produced by the Precision Thin Metals (PTM) business are used in a wide range of markets and applications. Most applications are geared toward enabling customers’ designs to be lighter, smaller, and more efficient. PTM materials are used extensively in: