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RE: Welding galvanized steel

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Additionally, the contractor will need to regalvanize the entire area, as
the weld will not be galvanized and the area of steel immediately around the
weld will have its coating ruined.  Also, the weld will represent a
connection between two members that may not have originally been intended to
be joined, or a connection at a point where they were not intended to be
joined.  Depending on the application, this in and of itself may cause
undesirable behavior.  It seems like even if it is okay, which is an open
question, there is probably an easier way to do it.  

-----Original Message-----
From: Al Greene [mailto:agreene(--nospam--at)bigge.com]
Sent: Friday, September 15, 2000 9:36 AM
To: 'seaint(--nospam--at)seaint.org'
Subject: Welding galvanized steel


I have a contractor who wants to make nonstructural weather-seal welds of
galvanized steel without grinding off the zinc coating.  He says that it's
done all the time.  I am concerned about the galvanic degradation of the
weld over time with the zinc mixed into the weld metal as well as the zinc
fume problem.  Has anyone run into this question before?  Thanks in advance
for any responses.

Al Greene, PE

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