Non-destructive ferrite content testing

Steel is often used in places where it needs to resist corrosion and acid, often also at high temperatures.
Our solution: the Feritscope® FMP30, a handheld gauge for accurate measurement of ferrite content.

Our ferrite content testers and accessories

  • Feritscope FMP30


    Ferrite content measurement handheld gauge with interchangeable probes, covering a wide range of applications.

  • Feritscope probes


    Interchangeable probes for numerous measurement applications.

  • Feritscope calibration standards

    Calibration Standards

    Wide range of calibration standards for precise Ferrite content determination.

The Feritscope® FMP30 is a robust and mobile device that is suitable for both on-site and laboratory measurement. It is a welding industry recognised and proven tool with over 40 years in service. The Feritscope® FMP30 measures the ferrite content in austenitic and duplex steels according to the magnetic induction method.

It is suited for measurements according to the Basler- Standard and according to DIN EN ISO 17655. Feritscope® FMP30 is extremely suited for measurements of austenitic platings as well as weld seams in stainless steel pipes, containers, boilers or other products made of austenitic or duplex steels.

Ferrit Scheme 3D

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Features and benefits of our FMP30 ferrite content testing machine

  • Non-destructive measurement of the ferrite content
    in a range from 0.1 to 80 % Fe or 0.1 to 110 FN
  • Display of the measured value in Ferrite percentage (% Fe) or as Ferrite number (FE)
  • Large and easily readable display with comprehensive functions
  • Measures automatically as soon as the probe is applied
  • Various probes available for reliable measurement even in hard-to-reach areas
  • Large choice of calibration materials available
  • Just one calibration required for the entire measurement area
  • Statistical display of significant values such as mean value, standard deviation, min, max and range
  • Manufacturer’s certificate is included in the scope of supply
  • Extremely easy calibration and normalisation procedure
  • Measurement in “continuous display mode” for running a scan over a region of a surface.
  • Easily interchangeable units of measurement (μm or mils)
  • USB interface for data exporting together with a PC software is included with FMP30

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Probes for our ferrite content gauges

At Fischer, we are committed to cover the widest possible range of ferrite content measurement applications. Whether you need to measure on flat or curved surfaces, or inside bores and holes, the below list of probes will cover every case.

Our application specialists can help you select the most suitable probe for your particular measurement application.


Probes for our ferrite content gauges

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Calibration Standards

In order to obtain comparable measurement results, the instruments must be adjusted or calibrated using standards that can be traced to internationally recognised secondary standards. For this purpose, the IIW (International Institute of Welding, UK) developed secondary standards that have been determined by the TWI (The Welding Institute, UK) according to the method described in DIN EN ISO 8249 and ANSI/AWS A4.2. Helmut Fischer offers certified calibration standard sets that are traceable to the TWI secondary standards for corrective and master calibrations. The standards of the FISCHER calibration standard sets list in addition to the Ferrite numbers FN and also the % Fe values.

Contact us now for more information

Whether you know what type of machine you require or have questions surrounding our product range, we are always happy to assist.

Get in touch and we will help you find the ferrite testing solution that best suits your needs. Our team has many years of experience and is always happy to answer your questions.

01386 577370

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