Fisher - FMP 30 Feritscope

PRODUCT DESCRIPTION

The FERITSCOPE® measures the ferrite content in austenitic and duplex steel according to the magnetic induction method. All magnetizable structure sections are measured i.e, in addition to delta ferrite also strain-induced martensite, for example, or other ferritic phases. The instrument is suitable for measurements according to the DIN EN ISO 17655. Areas of application are on-site measurements, e.g.,of austenitic platings as well as weld seams in stainless steel pipes, containers, boilers or other products made of austenitic or duplex steel.
Duplex steel is used increasingly in the chemical and petrochemical industries, e. g., for boilers and pipelines. A ferrite deficit in the weld seam area leads to strength reduction, whereas, an excess of ferrite content leads to a reduction in toughness and ductility. In particular when welding duplex steel, the ferrite content in the welding area can easily assume unfavorable values either due to unsuitable welding filler materials or through poor heat input or heat removal. Only an onsite measurement can provide the assurance that the processing did not change the optimum ferrite content in an unfavorable manner at the expense of mechanical or corrosion-resistance properties.