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Posted by Glen Id [70.41.247.101] on Sunday, May 15, 2011 at 11:23:40 :
In Reply to: Re: OT old welding rods posted by John S [71.253.7.219] on Sunday, May 15, 2011 at 07:52:46 :
Good,
The 7018 is 70 thousand tinsel strength, all position, low hydrogen. Low hydrogen is for reduced cracking in carbon steels. as we all know water is part hydrogen so the 7018 must be dry.
7014 is also 70 thousand, all position but is iron powder for fast fill as designated by the 4.I think it also runs better on AC and flat or horizontal positions
6011 and 6013 are 60 thousand tensil strength and is good for mild steel a36 steel is 60 thousand. If i remember correctly both of those electrodes are ran on AC. When I was welding pipe that had to pass xray I used 6010 for penetration and no slag inclusion on DC reverse polarity for the root pass and finished with 7018. I still like the 6010 over the 6011 and 6013 but it makes a lot of spatter and because of that it isn't popular.
Burn up the rod after you dry it out but get some good rod for anything important.