View Full Version : are 7024 rods affected by moisture?
11-18-2008, 02:50 PM
I just purchased a 50 lb box of miller 7024 rods and they came from the factory in a cardboard box inside another cardboard box. They were NOT in a metal can and they were NOT wrapped in plastic. So that being said, I thought that they needed to be kept dry. My question is: do they need to be kept dry?
11-18-2008, 04:32 PM
7024 electrodes aren't a low hydrogen rod so moisture won't affect the quality of the weld. That being said, I had some here that were a few years old and left out exposed to the air. I had a hell of a time maintaining an arc until about a quarter of the rod was consumed and the rod had heated up. I have to assume moisture had something to do with that. Now I keep all of my electrodes in those sealed electrode containers.7024 sure lays down purdy beads.
11-18-2008, 05:37 PM
yes 7024 needs to be kept dry.
11-18-2008, 06:42 PM
I assume you don't have an electrode oven:rolleyes: Peter
11-18-2008, 06:58 PM
No I dont have an oven, i wish I did. I've been on the look out for one for cheap.... Anyone have a spare?
11-18-2008, 07:27 PM
you can build one on the cheap - google homemade rod ovens. Miller might even have plans on thier website
11-18-2008, 08:50 PM
An old refrigerator with just a 100 watt light bulb inside makes an excellent rod oven.
11-18-2008, 08:54 PM
Or an army ammo box with a lightbulb, if you need something smaller.
11-18-2008, 10:16 PM
I'm going to chime in on this...but I'll start a thread about ovens...over on the HOMESHOP WELDING FORUM...
11-19-2008, 07:37 AM
jcarter.. That is exactly the problems that I have with 7018s
11-19-2008, 11:49 AM
7018's are definitely sensitive to water absorption according to the Lincoln data sheet that came with some I have. What's more important is that they prescribe a very specific drying proceedure for that electrode (fairly high temp) and indicate specifically that the typical "keep warm for a long time" drying does not produce good results.
As I recall, the temp was up around 700 degrees for something like an hour....so you aren't going to dry them the right way in your home oven. I bought a bunch at a hock shop in an opened container and I figured I would just assume that they need dried. I think I can use a heat-treat oven here at work to do the job.