Friday, September 18, 2009

[MW:3241] Re: Shelf life of Low hydrogen electrodes

Bake the electrode as recommended by the manufacturer.  The recommendation is generally printed on the package itself. Normally 300degree C for 1 to 2 hours, Thereafter maintain a temperature of 100 deg. C in oven till use.
 
Gopu

--- On Thu, 17/9/09, Ravindra T <indra.tiru@gmail.com> wrote:

From: Ravindra T <indra.tiru@gmail.com>
Subject: [MW:3238] Shelf life of Low hydrogen electrodes
To: materials-welding@googlegroups.com
Date: Thursday, 17 September, 2009, 3:28 PM

Dear All
 
Our contractor has brought low hydrogen electrodes (E 7018 & 8018) which are manufactured in 2007 for welding station piping in one of our intermediate pump station of our cross country pipeline project. I would like to know whether these electrodes can be used now?. Is there any reference in ASME code regarding the expiry/ shelf life of Electrodes?
 
Please advise me in this regard.
 
Thanking you all in advance
 
Ravindra
Senior Project Engineer

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