Minimum space between two weld on pipe
Minimum space between two weld on pipe
(OP)
Hi
What is the minimum distance between two circumferential welds on pipe.Wich code cover that topic?
Thanks
What is the minimum distance between two circumferential welds on pipe.Wich code cover that topic?
Thanks





RE: Minimum space between two weld on pipe
For example, API 1104 is appliable for general welding quality results and acceptability for pipeline welds.
In general there is little that anything says about the allowed closeness of two welds, other than the recommendation that heat affected zones should not overlap.
Only put off until tomorrow what you are willing to die having left undone. - Pablo Picasso
RE: Minimum space between two weld on pipe
Steve Jones
Materials & Corrosion Engineer
http://www.linkedin.com/pub/8/83b/b04
RE: Minimum space between two weld on pipe
RE: Minimum space between two weld on pipe
RE: Minimum space between two weld on pipe
RE: Minimum space between two weld on pipe
Only put off until tomorrow what you are willing to die having left undone. - Pablo Picasso
RE: Minimum space between two weld on pipe
"Since welds are made to a qualified WPS/PQR are typically stronger than, and always as strong as, the basemetal, ASME sets no limits on weld spacing" - I would disagree. With pressure vessels there is allowances for weld efficiencies, which implies welds cannot be stronger than the base material, or as strong as. This may not be the actual fact in the real world, but for engineering it makes sense. The strenght of the weld is limited to the weakest part - so if the base material is weaker, then this is the limiting factor. Also, not all welds are free from inpurities - hence I guess why there is a weld effeciency allowance.
RE: Minimum space between two weld on pipe
RE: Minimum space between two weld on pipe
11echo, you say "in your end of the world". Do you refer to local rules, sound engineering practice or a Code? If the latter, what is the Code? - and where is your end of the world? (Generally speaking e.g. USA, North Sea etc.)
brimmer says 3*d in the code where he is. What is that Code?
I have looked through ASME B31.3 - 2010 and cannot find anything on this. It makes sense to have a rule of this type.
Thanks.
RE: Minimum space between two weld on pipe
RE: Minimum space between two weld on pipe
Go to the "Search" button in the header section and type in your question before you post it on the forum
I typed in "minimum distance between welds" and got lots of information.