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Country Discussion Topics
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A welding question...bar
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DavePA    Posted 03-27-2003 at 13:37:57       [Reply]  [Send Email]
Will be helping to put the second story on a garage. Concrete block with 3/8 metal plate on top which will be welded to 3/8 thickness bar joice. Which rod would be better 7018 or 6011? The metal will be clean no rust. AC or DC.
thanks DavePA


markct    Posted 03-27-2003 at 19:46:30       [Reply]  [No Email]
yea i agree,as long as the metal is clean use 7018, it is a low hydrogen rod so it is less suceptible to hydrogen imbrittlement which can make a nice looking weld break right in half


DavePA    Posted 03-28-2003 at 12:40:41       [Reply]  [No Email]
thanks for the information.. does ac or dc make much difference with the quality of the weld?


Clipper    Posted 03-28-2003 at 14:16:26       [Reply]  [No Email]
Whenever possible go with DC-smoother performance-your experience level helps too..


Clipper    Posted 03-27-2003 at 14:18:06       [Reply]  [No Email]
7018 will be stronger but make sure your weld area is very clean(NO RUST) If you can't get that clean go with 6011-it will burn thru the rust and still give you a tensile strength of over 60,000 lbs.per sq.in.


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