Drill Casing.
Oil field drill casing.
The casings are used for down hole operations, they have been coated but
are cleaned.
They are sold off by the pound when they no longer have the quality
required for down hole shots or for pumping oil out of a well, water or
steam into an oil well.
Nothing wrong with the pipe, its good stuff.
We use bunches of it down here in Texas for Horse Fences, Headache Racks
for trucks and just general farm and ranch uses.
As you know already the ASTME Schedule 40 pipe is termed "Standard Pipe".
The oil field pipe is manufactured to more exacting standards due to the
severe service it might receive at 14,000 feet pumping oil or such in the
oil industry.
It comes in diameters up to 14" in varying wall thicknesses.

Stan Wilder

On Wed, 11 Dec 2002 06:57:27 EST George Goff <THX0001@AOL.COM> writes:
> In a message dated 12/10/02 8:32:44 PM, vanagon@VOLKSWAGEN.ORG
> writes:
>
> << 'Schedule 40' 1.5" OD drill casing >>
>
> I know what Schedule 40 means, at least without quotation marks, but
> what is
> drill casing?
>
> George
>
>

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