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Re: o t arc welding
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Posted by Bill Bridges on July 01, 2007 at 07:55:13 from (70.218.102.6):
In Reply to: o t arc welding posted by Bill Geer on June 30, 2007 at 12:56:55:
The first two numbers are the streingth of the rod ... 60 means 60,000# and 70 is 70,000# the next number is the positions the rod can be used in ... 1 is an all position rod and the last number is dealing w/ the composition of the flux ... 6011 is an all around good rod for "farm-boy" welding in that it can be used with both AC or DC machines it can also be used either (+) or (-) ground ... in some cases the (+) ground DC has been known to work wonders - especially in really rusty conditions. 6011 actually has a higher tensle streingth than "5P" or 6010 which is the DC reverse polarity only rod that is the most commonly used root pass and filler rod. The combination or 6010 root and filler passes and 7018 cover pass is generally accepeted as "as good as it gets" unless the base material is 70,000#(+) ... there are also rods that go to 110,000#(+) ... ALWAYS CLEAN YOUR WORK PIECE as best as you can to avoid slag inclusions. Another fact is the difference in rod motion required during the use of different rod ... the 7018 cannot be "whipped" - it must be run with a steady motion or side to side during a "weave" and should never be run "down-hill" ... control of arc length is also key ... the longer the arc the hotter! If you run too hot it will splatter - if you run too cold it will not penetrate properly. I know this is more than likely more than anybody wanted to hear about ... maybe not! Anyway if you are not sure of yourself then have the work done by someone who is competent if it is a critical weld ... Later! Wild Bill
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