Subject: Schedule XX pipe

From: Dave <[email-masked]>
Date: Sun, 4 Aug 1996 23:31:37 -0500

To all:

I hve gained a passable, albeit incomplete, understanding of the numbering
system for iron (e.g. 1018, 1040, etc. . .) but have no idea about the
meaning of the various "schedule XX" designations for pipe.  In other words,
just what does "schedule 40 pipe" mean?

Thnx in advance.

Dave Brown
Heritage 'Smithing
Heritage Hill State Historical Park
Green Bay, WI

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From: Bill Hornaday <[email-masked]>
Date: Mon, 05 Aug 1996 09:54:11 -0700

If you havbe a passable understanding of the numbering system for iron, why
don't you set it out.  It gives me a start, and if there are any
misunderstandings, someone will correct it.

Thanks,

Bill Hornaday

At 11:31 PM 8/4/96 -0500, you wrote:
>.-

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From: Charlie McKinney <[email-masked]>
Date: Mon, 5 Aug 1996 20:16:06 -0000

Sch 40 pipe is pretty much called "standard", or "standard black" if you're working carbon pipe in the industry.  Industry is process piping and plumbing.  The gas line into your house is schedule 40.  XX or XXstrong is schedule 80, or double the wall thickness of schedule 40.  This is used in hydryaulics, and some steam lines.  There is schedule 120 and sch 160,  called double extra strong, etc.  Likewise there is a schedule 20, and sch. 10  normally used in stainless steel pipe, since the strength is much greater, it allows thinner wall thickness.  I don't have a pipe book handy, but the only way to tell the exact thickness of a sch. of pipe is to have one.  The wall thickness of 1/2" sch. 40 is thinner than 3" sch. 40 I believe.

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From: 	Dave[SMTP:[email-masked]]
Sent: 	Monday, August 05, 1996 4:31 AM
To: 	[email-masked]
Subject: 	Schedule XX pipe

To all:

Thnx in advance.

Dave Brown
Heritage 'Smithing

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From: "David C. Hufford" <[email-masked]>
Date: Tue, 06 Aug 1996 06:42:29 -0400 (EDT)

The summer 92 Anvil's Ring has an article by Peter Happny on pipe 
forging.  It includes a table of dimensions for schedule 40, 80, and 
120.  Peter demonstated pipe forging at the Alfred conference.

D.C. Hufford

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From: [email-masked]
Date: Tue, 6 Aug 1996 23:35:12 -0400

Look in Machinery's Handbook (yes, the big thick one with 2500 plus pages)
for pipe schedules and sizes.  It also has a lot of answers to various
questions I have seen posted here.  Mine is several years old and they are
probably worth $80 or more now, but they are well worth it.

hollis