Number of welds to make pipe from plate.
Number of welds to make pipe from plate.
(OP)
Our sub-supplier are making a 52" pipe for us of ASTM A516 material. Do anybody know if there are any restrictions on the number of longitudinal welds to make such a pipe?
Do you know if this is written in ASME B31.3?
Any help is appreciated
Do you know if this is written in ASME B31.3?
Any help is appreciated





RE: Number of welds to make pipe from plate.
Do you mean weld passes per seam or number of seams?
RE: Number of welds to make pipe from plate.
RE: Number of welds to make pipe from plate.
I was thinking about how many longitudinal seams to weld the pipe together from ASTM A516 plate is allowed according to code.
The Outer diameter is 52" and the thickness is 50 mm.
Best regards,
Torgeir
www.propure.com
RE: Number of welds to make pipe from plate.
RE: Number of welds to make pipe from plate.
Thank you for your reply.
The ASTM A672 handles the electric fusion welded pipes.
Are there a standard for saw (sub arc welding)released from ASTM?
Regards,
Torgeir
RE: Number of welds to make pipe from plate.
Steve Jones
Materials & Corrosion Engineer
http://www.pdo.co.om/pdoweb/
RE: Number of welds to make pipe from plate.
Thanks a lot for your helpful reply.
Best regards,
Torgeir
RE: Number of welds to make pipe from plate.
I have bought and read throug ASTM A672.
The standard does not say anything about number of seams/plates to form a pipe.
Is it then resonable to say it is allowed, since it according to the standard is not disallowed to form a pipe from two plate segments?
Best regards,
Torgeir
RE: Number of welds to make pipe from plate.
I hope your fabricator is planning on forming each section in 360 degree portion and not two (2) 180 degree portions.
RE: Number of welds to make pipe from plate.
RE: Number of welds to make pipe from plate.
Steve Jones
Materials & Corrosion Engineer
http://www.pdo.co.om/pdoweb/
RE: Number of welds to make pipe from plate.