NDT of Existing Framing
NDT of Existing Framing
(OP)
I have to come with a plan to investigate the capacity of an existing welded steel pipe framing. The structural framing is exposed in a marine environment, and have spots that are starting to rust and pit.
My main concern are the welded connections (pipe-to-pipe, and pipe-to-gusset plates). We are planning to NDT all the welds that show signs of corrosion, and my question is: What type of NDT should I use, and why?
Magnetic particle and colorant dying would test only the top 1/4" or so of the weld.
Ultrasonic and X-ray testing could be difficult in some places because of the framing geometry.
TIA
AEF
My main concern are the welded connections (pipe-to-pipe, and pipe-to-gusset plates). We are planning to NDT all the welds that show signs of corrosion, and my question is: What type of NDT should I use, and why?
Magnetic particle and colorant dying would test only the top 1/4" or so of the weld.
Ultrasonic and X-ray testing could be difficult in some places because of the framing geometry.
TIA
AEF





RE: NDT of Existing Framing
Always use proper personal protective gear and safe, approved working techniques.
Good luck and work safely.
Rod
RE: NDT of Existing Framing
UT can detect and measure corrosion. RT can show the extent of pitting. Sometimes a combination of methods is useful.
RE: NDT of Existing Framing
Recommend You submit this thread in the forum for NDT:
QC, Inspection & Testing engineering Forum Forum286
Regards, Wil Taylor
RE: NDT of Existing Framing
Thanks for your responses. They were very helpful.
I am considering ultrasonic testing for accessible places, and dye-pen testing in places where ultrasonic could not be used.
Most of the T and K connections in the piping frame are Ok. The pipe-to-gusset plate connections are the ones that show more signs of corrosion.
Thanks again
AEF