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[TowerTalk] Rebar In Tower Base

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Subject: [TowerTalk] Rebar In Tower Base
From: (Ron Jones)
Date: Thu, 2 Apr 1998 12:41:39 -0500
Common rebar today is 60,000 PSI or Grade 60.  This rebar is hard to 
weld, even tack welds will break loose.  You can get weldable grade 
rebar, but it is not normaly stocked at the fabricator, and may 
require a special mill order (if you want to buy enough 'tons' of 
it).  Even when this rebar is welded, welders usually need the mill 
test reports of the rebar for the chemical analysis. 
The weldable ASTM A706 rebar may be found  at misc metals shops where 
they do weld rebar to plates, etc.
Heating the bars will weaken it.
Ron  K4YN

> Word is (from welders) that welding to ordinary re-bar weakens it at the
> weld point.  Then, did HyGain use "special" re-bar in the welded cages
> they have sold me as HG-70HD bases???
> Does anybody know anything, for sure?  K4VU
> D

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