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https://www.ste-mart.com/ferrite-testing.htm

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Ferrite is a kind of crystalline structure found in microstructure of both austenitic and duplex stainless steel or welds, and its content determines the mechanical properties, weldability, durability, toughness, crack prevention and corrosion resistance of the base metal and welds to a certain extent. Sometimes, too high ferrite content will have adverse effect on the properties of steel, such as destroying the uniformity of the structure, reducing the plasticity and toughness of the material, accelerating the aging rate of the material during creep and reducing the service life of the material. Therefore, it is important to control a proper ferrite content.

Ferrite testing is a rapid, accurate inspection method used to determine the content of delta ferrite on austenitic and duplex stainless steel materials without leaving markings on the test specimen.

STEMart can carry out ferrite testing on austenitic and duplex stainless steel to help manufacturer avoid pote