Hi, Christopher:
"The thermal expansion coefficients for steel doesn't vary with time" is not true. In fact, there is a significant change in B31.1 (not B31.3) recently, for example:
Deg F B31.1-2001 B31.3-1998
200 6.7 6.38 300 6.9 6.60 400 7.1 6.82 500 7.3 7.02
I just would like to know if there was a similar change 20 years ago!
-----Original Message-----
From: Christopher Wright [mailto:chrisw@skypoint.com]
Sent: Tuesday, November 12, 2002 11:47 AM
To: ?
Subject: Re: [PipingDesign] Thermal expansion coefficients for low carbo
>Does anybody have the data for the captioned subject (prior to 1982)?
The thermal expansion coefficients for steel doesn't vary with time. It
was the same before 1982 as it is now: 6.54E-6/degF. You can find Code
snction values for all materials used in pressure vessel and piping
design in Section II of the ASME Code.
Christopher Wright P.E. |"They couldn't hit an elephant at chrisw@skypoint.com | this distance" (last words of Gen. ___________________________| John Sedgwick, Spotsylvania 1864)http://www.skypoint.com/~chrisw
Discussion List sponsor: Texas Flange - a good source for information on
industrial flanges, all they ask is for referrals for designs they help
with.
877-610-8924.
www.texasflange.com
Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
The information contained in this e-mail is intended only for the individual or
entity
to whom it is addressed. Its contents (including any attachments) are
confidential and
may contain privileged information. If you are not an intended recipient you
must not
use, disclose, disseminate, copy or print its contents. If you receive this
e-mail in
error, please notify the sender by reply e-mail and delete and destroy the
message.
[Non-text portions of this message have been removed] Received on Tue Nov 12 14:07:00 2002
This archive was generated by hypermail 2.1.8 : Mon Oct 27 2008 - 20:23:58 EDT