How close can to Pipe Butt Welds Be?
How close can to Pipe Butt Welds Be?
(OP)
Can anyone tell me if there is a restriction on how close 2 pipe butt welds can be per B31.1
Thanks
Thanks
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How close can to Pipe Butt Welds Be?
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RE: How close can to Pipe Butt Welds Be?
"Minimum distance between Welds"
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RE: How close can to Pipe Butt Welds Be?
Thats what I thought, so many times I have been told about a "minimum distance" but know one can be definitive.
Thanks
RE: How close can to Pipe Butt Welds Be?
RE: How close can to Pipe Butt Welds Be?
Avoiding HAZ overlap has always been my RoT for minimum spacing of welds. However the actual value has generally been based on observation and measurement. This is generally easy with SS tube, the HAZ is quite obvious. I apreciate the HAZ will be govererned by weld procedure, what RoT do you use?
Cheers
Mark Hutton
RE: How close can to Pipe Butt Welds Be?
If they're butt welds, I'd say the minimum distance between welds is determined by what you can RT and get reliable results from.
RE: How close can to Pipe Butt Welds Be?
In my opinion, NDT has nothing to do with this because you can sequence the NDT for each weld (no different than multiple NDT cycles of repair welds).
RE: How close can to Pipe Butt Welds Be?