WMBU P4 Superheater Lower Bend
WMBU P4 Superheater Lower Bend
(OP)
Primary Superheater lower bend (SA-213-T11) 2 1/2" X 0.220” was incorrectly weld repaired (weld metal build-up) using E7018-A1. Area welded was approximately 2" x 8" Long. Primary Superheater is in a very hot location of the boiler. Client is aware of the situation. Is this something that should be address immediately or can it wait until next scheduled outage.





RE: WMBU P4 Superheater Lower Bend
B.E.
You are judged not by what you know, but by what you can do.
RE: WMBU P4 Superheater Lower Bend
Be a smelt water
Reaction Explosion
RE: WMBU P4 Superheater Lower Bend
RE: WMBU P4 Superheater Lower Bend
RE: WMBU P4 Superheater Lower Bend
RE: WMBU P4 Superheater Lower Bend
RE: WMBU P4 Superheater Lower Bend
Weld repair is on the outside of the pipe bend though, so the creep is reversed from the above, isn't it?
(Softer material is on the outside of the pipe, so it is NOT restraining the stressed inner higher-strength material, but instead will simply "give" immediately as fast as the inner material yields over time. )
So the weld repair does not appear to give you more time, but may have removed margin you previously had.
RE: WMBU P4 Superheater Lower Bend