DMW
DMW
(OP)
Other threads have approached the subject and in my case a client used 309 filler metal to weld about 25 different 316ss Thermowells in crude and reformer sections of their refinery. Some lines are CS and others are 1-1/4cr and 2-1/4cr. They have lots of cracking issues after startup and first few weeks of run time. Service temps are from 400°f to 675°f.
I suggested they replace and use Inconel 82 ErNiCr-3 and Inconel 182 ENiCrFe-3 filler metal across the board to be safe.
They asked if there is any data supporting the use of 309 filler in this application. In the CS maybe at the lower temp ranges?
References and advice is appreciated
I suggested they replace and use Inconel 82 ErNiCr-3 and Inconel 182 ENiCrFe-3 filler metal across the board to be safe.
They asked if there is any data supporting the use of 309 filler in this application. In the CS maybe at the lower temp ranges?
References and advice is appreciated





RE: DMW
RE: DMW
RE: DMW
RE: DMW
GTAW and SMAW
Like Metengr said technique is likely as much the culprit as anything. Does anyone know when the temp limitations on DMW with 309 came about?
RE: DMW
RE: DMW