Butt Weld Angle
Butt Weld Angle
(OP)
Hello,
I would need some help regarding butt weld specifications.
Could it be Butt weld regardless the angle of the pipe end. I mean, if no specification further than BW are indicated, could the pipe or accessory be supplied either with 37.5º or 0.5º?
I can't find the specifications in the ASME
Thanks and regards
I would need some help regarding butt weld specifications.
Could it be Butt weld regardless the angle of the pipe end. I mean, if no specification further than BW are indicated, could the pipe or accessory be supplied either with 37.5º or 0.5º?
I can't find the specifications in the ASME
Thanks and regards
RE: Butt Weld Angle
You may butt weld two pies with the plain end, i.e. 0-deg. But, the the joint quality factor (Ej) of the pipe will be reduced per B31 Code, which may not be aceptable by the engineering design.
RE: Butt Weld Angle
RE: Butt Weld Angle
The bevel angle is noted in the weld spec. If you try to weld square end pipe when the WPS calls for 37 degrees bevel then you are not following the WPS and your weld will probably fail the NDT.
The supplier doesn't know what you want the pipe for.
So the angle is part of your pipe specification/ data sheet.
BTW "...the ASME" is meaningless without at least the particular code number.
This question is all a bit silly as no one will weld pipe end like this
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
RE: Butt Weld Angle
luis
RE: Butt Weld Angle
RE: Butt Weld Angle
of course it depends on the thikness but the usual is whate I said
RE: Butt Weld Angle
Most bevels you see machined into pipe is probably 37.5 degrees with a small flat root as it is easy to cut or bevel.
But you do need to specify it on the pipe data sheet.
As the diagram says - these are "typical" - but they are a general ROT for the petrochem industry at least.
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
RE: Butt Weld Angle
Same goes for BW fittings....ASME B16.9 has dimensions for bevels.
RE: Butt Weld Angle
Should have mentioned location or region also as a contributing factor, apart from material and welding process...
The range 60° - 70° is what is used outside the USA, seldom any more.