02:06 May-05-2003 mike macke NDT Inspector GE Inspection Services, USA, Joined Aug 2001 8
Measuring Stainless overlay 309L, 347L, 317L,316 etc.
Hello from South Carolina!!! well, once a year I go out to you all for you opinons on the above subject. Is there a system out there that can measure the thickness of Austentic overlay(ferrite)0.8 to 7.8 and it will vary. The welding application can vary also, but it is mostly automated. The backing is SA 285C or 516-70 mild steel (pressure vessels)or SA210 boiler tubes.For UT, the Z's factor is only 2. For magnetic induction or eddy current, the ferrite is the problem. We still measure befor overlay and after. The thickness will range from 1mm to 12mm.
08:44 Jun-05-2003 Doug Breeze Director, Consultant; R&D Inspection Software Limited, United Kingdom, Joined May 2000 20
Re: Measuring Stainless overlay 309L, 347L, 317L,316 etc. In response to Mike Macke's question a few weeks ago Dinsley Devices and Inspection Software have recently installed an automated system to measure Inconel cladding in the bore of 125mm - 300mm carbon steel pipe. Cladding thickness 0mm - 10mm, +/- 0.1mm. Should be suitable for other similar materials.