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Old 11-09-2012, 18:38   #6
glock_collector
Senior Member
 
Join Date: Dec 2011
Posts: 851
Ar 400 or 500 welds just fine with the mig process, Whadda ya think 7018 is?? Any S6 hardwire is the same as your stick series, the only diff is the way its applied and the use of a shielding gas instead of the flux coating on the rod. Alot of the wire I run in my company is of the 70 series, very common. I fab and install targets and indoor shooting traps, private and federal facilities. Reverse polarity is useful on ar due to the spotty magnetism, 308 ss rods properties are not the best for any of the high magneese steels, you will get very fine cracks that will weaken the welds.
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