Ferrite test is a method used to analyze the delta ferrite content in austenitic, duplex materials, which are susceptible to intergranular corrosion. The test can be performed with portable equipment called a ferrite scope. Ferrite reading is normally read out either in ferrite percentage or as ferrite number. Ferrite formation in the material higher than required level may lead to the corrosion cracking phenomenon.

Interface technical Inspection has a vital crew to perform the advanced testing methods with proper training and having good knowledge in the field of metallurgy and they are alert to face the new challenging testing trends from the field.