×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Help - Need to find a pipe supplier!

Help - Need to find a pipe supplier!

Help - Need to find a pipe supplier!

(OP)
I need to find a pipe supplier to get a piece of SA 106 GR B pipe to machine down to 8.250 ID x 9.250 OD x .500 nom. thk.

I currently have taken a piece of 8" sch 80 (.500 nom.)and expanded it to 8.250 ID.  I am having it magnaflux tested to check for cracks.  After expanding, the material thickness thinned down to .450 thk..  I figure the percentage of expanding is 7.145%.

The customer also states SA 106 GR B as "tubing".  I my book SA 106 GR B is seamless pipe.  They stated their previous vessel supplier is using it why can't you.  I asked for them to supply me with the supplier info but they can't do that.

This is being used as a shell section in a pressure vessel.  Any comments or help would be greatly appreciated.

Thanks,

Ben

RE: Help - Need to find a pipe supplier!

sounds like you're doing it the hard way - why not roll up & weld some 1/2" plate to suit?

RE: Help - Need to find a pipe supplier!

There's got to be a better way to accomplish the end result.  The first thought is re-engineer the end product to fit the pipe, rather than having to make pipe to fit the product.

Although not as common as pipe, you can buy mechanical tubing in some odd sizes.  I don't know that any of it meets A106 spec, necessarily.

http://www.ryersontull.com/stocklist/RedbookServlet?COM=GetTable&ID=1749

Shows a 9.25" OD x 8.25" ID x 1/2" wall mechanical tubing as a stock item.

RE: Help - Need to find a pipe supplier!

(OP)
Arto,

We have used 1/2" rolled and welded shell in previous design's but I was trying to exhaust all avenues to take cost out of fabricating and machining.  I was also trying to do the "If they can do it, then I can do it" scenario.  

Thanks to everyone for their response,

Ben

RE: Help - Need to find a pipe supplier!

BTJLPI,
From an AI's standpoint I would concur with JStephen's post.  Such an approach would save you a lot of headaches ( and money ), if feasible.
Regards,
Ron

RE: Help - Need to find a pipe supplier!

try Admiral Metals.  they have an extensive line

www.admiralmetals.com

RE: Help - Need to find a pipe supplier!

May try getting 1018 tubing material, which is made in all sizes, may still have to get it machine.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources