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Re: [Fwd: Really Questioning 9-11 [Book]]

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The steel did not melt. You only have to heat steel to 700 degrees F to start loosing strength. At 800 degrees, steel looses most tensile strength. You don't have to melt steel to cause a structural failure.

I don't recall any pools of molten steel at the bottom of the pile. But keep in mind that there was fuel storage in the sub levels of the WTC for emergency power. That was the perceived culprit at WTC 7.

Regards,
Harold Sprague




From: Charley Hamilton <chamilto(--nospam--at)uci.edu>
Reply-To: <seaint(--nospam--at)seaint.org>
To: seaint(--nospam--at)seaint.org
Subject: Re: [Fwd: Really Questioning 9-11 [Book]]
Date: Fri, 18 Mar 2005 09:22:24 -0800

Neglecting whatever else might be wrong (or questionable) in the
Op Ed piece, I have to admit I'm more than slightly confused by these
two pieces of "information":

(1)
*Furthermore, it takes a temperature
of 2,795 degrees to melt construction grade steel, yet the highest
temperature jet fuel can reach is 1,517 degrees.*

(2)
*how do we explain the pools of molten steel which were
found bubbling 70 feet beneath the towers five weeks after 9-11? *
Incidentally, a temperature of 5,182 degrees is needed to transform
steel into a liquefied state.

Wait a minute, if steel melts at 2795 degF, why does it take a temperature
of 5182 degF "to transform steel into a liquefied state."

Either it melts at 2795 or not.  Unless there's some other meaning to
"melt" than "transform into a liquefied state".

*Sheesh*

Charley

--
Charles Hamilton, PhD EIT               Faculty Fellow
Department of Civil and                 Phone: 949.824.3752
    Environmental Engineering           FAX:   949.824.2117
University of California, Irvine        Email: chamilto(--nospam--at)uci.edu



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