If the well heads are being welded to code, API 1104, then there is a welder who is not in compliance. At least, not the code I'm reading. The whole point of welding is to make two, or sometimes more, separate pieces of metal into one.
However, there is a consideration to everything, such as, WHY?
1-Is the weld metal of the cap/cover too low and there is a need to fill it up?
The weld should be a maximum of 1/8" above the base metal.
2-Is the completed weld leaving the edges of the bevel exposed and not part of the weld? An inspector would interpret this as lack of fusion or under fill.
The weld should be 1/64" over, or past, the top edge of the bevel on each side.
There's an old saying that the cover pass should be a "Dime high and nickel wide".
As for tempering a weld? There is Pre/Post Weld Heat Treatment. |