What is the pipe material?
What is the pipe material?
(OP)
Hi Everyone,
I am working in a Thermal Oil system piping retrofit project in a Sawmill. The original system was installed in 1987. There is no documentation whatsoever available at this point. None! I'm collecting some data from equipment nameplates and come across this pipe with original stensill mark.
It looks like this particular pipe has diameter of 6.625 (6" nominal) and wall thickness of 7.1 mm ( 6" x Schedule 30). However, what is X818128, 87-55, or NNC16 means? See attached picture.
Thanks,
Curtis
I am working in a Thermal Oil system piping retrofit project in a Sawmill. The original system was installed in 1987. There is no documentation whatsoever available at this point. None! I'm collecting some data from equipment nameplates and come across this pipe with original stensill mark.
It looks like this particular pipe has diameter of 6.625 (6" nominal) and wall thickness of 7.1 mm ( 6" x Schedule 30). However, what is X818128, 87-55, or NNC16 means? See attached picture.
Thanks,
Curtis





RE: What is the pipe material?
A little google search says me that could be mechanical tube or API 5L Gr. B.
RE: What is the pipe material?
There is another picture of different spool. It could be API 5L Grade B/X42 indeed. It could be also CSA Z245.1 Grade 290.
What do you think?
Thanks,
Curtis
RE: What is the pipe material?
RE: What is the pipe material?
The basic data is there now the second bit has been revealed, the other numbers are the vendors markings which meant something at the time.
NNC could be anything (no coating maybe?)
87-55 would appear to refer tot he year and possibly the batch number that year.
It's ERW pipe manufacture.
Looks in quite good condition, at least externally.
Keeping it in place and modifying is one thing, but re-use might be problematic without material certificates.
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
RE: What is the pipe material?