Loading…
4
Update: I thought pre-heating a 3/4 inch plate for a patch was a waste of time until a job in Gary.
We had a cold crack run six inches on a seam I swore was solid, and the foreman just said 'told you so' with a grunt. Anyone else run into that on older pressure vessels?
3 comments
Log in to join the discussion
Log In3 Comments
jennyt836mo ago
Man, that's rough. So the crack ran along the weld itself, not the base metal? Makes you wonder about the original heat treatment on that old steel. What kind of pressure were you guys working under when it let go?
5
the_gray6mo ago
Ugh, tell me about it, @jennyt83. That old steel was probably brittle from day one. The weld was just the weak spot that finally gave up.
8
lily_sullivan824mo ago
Was the pressure cycling a lot before it let go, @jennyt83? Fatigue cracks love old welds that never got stress relieved properly. Either way glad nobody got hurt.
4