20th International Forgemasters Meeting - IFM 2017

The Ultrasonic Examination of Austenitic Stainless Steel (A.S.S.) Forgings for critical application is a challenge, due to high thickness, isolated coarse grain structure and its complex configurations. To detect and characterize defects in these A.S.S. forgings, we at L&T Special Steels and Heavy Forgings (LTSSHF) have done study for ultrasonic examination technique based on stringent acceptance and reporting criteria by conventional manual scanning for thickness ranging from 350mm to 900mm. This paper gives details of Demonstration, Reference UT Blocks, Equipment, Search Unit, Couplant used and Extent of Examination with respect to complex configuration of the forgings.