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RE: Oil Drilling Pipe

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Oops...sorry for the blank post.

If this pipe is to be welded, another thing to beware is the carbon 
equivalent.  If this material is manufactured to API 5CT (casing or 
tubing) it may be difficult to weld.  If I remember correctly, API 5CT has 
no limits on the chemistry.

And then there's straightness...

Dave Evans, P.E.
TNH, Inc.



From:           	"Lutz, James" <James.Lutz(--nospam--at)earthtech.com>
To:             	seaint(--nospam--at)seaint.org
Subject:        	RE: Oil Drilling Pipe
Date sent:      	Fri, 20 Jun 2003 13:03:21 -0700
Send reply to:  	<seaint(--nospam--at)seaint.org>
Organization:   	http://www.seaint.org

> As a side issue on this pipe, I recall reading somewhere that sometimes
> salvaged oil drilling pipe is contaminated with Radon that is brought up
> during the pumping process. The oil companies have been known to ship this
> pipe to Asia to get rid of it, and whose steel it ends up in afterwards is
> anybody's guess. The issue of steel contamination with radioactive scrap is
> not a widespread problem, but it occurs from time to time. You might want to
> investigate the pedigree of your material.
> 
> -----Original Message-----
> From: richard lewis [mailto:rlewistx(--nospam--at)juno.com]
> Sent: Friday, June 20, 2003 11:20 AM
> To: seaint(--nospam--at)seaint.org
> Subject: Oil Drilling Pipe
> 
> 
> I have a client who wants to build a maintenance shed out of used oil
> drilling pipe.  The OD of the pipe to be used for columns is 6 inches. 
> The wall thickness is about 0.245 inches.  This is not a standard pipe in
> the AISC manual.  Can someone give me some information on this pipe?  I
> would like to know what the standard steel yield strength is for a pipe
> like this.
> 
> Thanks.
> 
> Rich
> 
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