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RE: Full Pen Weld at Channel

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You can do any kind of weld you want, but you are limited on what prequalified welds are available.  You can qualify any weld, but that takes some time.  I just try to specify something that can be done by most shops, inspected by any inspector, and gets me to happy hour ASAP.

Harold Sprague

> Date: Tue, 14 Oct 2008 23:10:11 -0700
> From: m_k_gilligan(--nospam--at)
> Subject: Re: RE: Full Pen Weld at Channel
> To: seaint(--nospam--at)
> While the partial pen weld may sidestep several issues I am not convinced that you cannot produce a full pen weld without weld access holes.  I would appreciate reasons why this is not possible.
> While the weld may not be pre-qualified it is not clear why a weld  without a weld access hole cannot be qualified.
> Weld access holes are needed to allow access of the electrode but if you can weld from outside you could sidestep this requirement.  This might result in a larger weld volume on one side in order to get access but it appears doable.
> If you weld the web after the flanges are welded you  have an opportunity to deal with defects in the root.  This might not be elegant and may require a fair amount of grinding but it might be the answer in some situations where weld access holes are not visually acceptable.
> In some ways UT might be easier without weld access holes since you do not need to deal with the discontinuity due to the 90 degree connection and the use of weld tabs that are left in place.
> Of coarse the other option would be to use the weld access holes and fill it with bondo..  It intrigues me that this is not used more often for architectural steel.  Any suggestions on how to specify bondo.
> Mark Gilligan
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