Fillet Welds on 3/8" steel

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Hey guys and gals.I'm working on a project where I need to make some brackets out of 3" wide x 3/8" thick steel.The two pieces are arranged in a "T" fashion where I can weld both sides.  The pieces will form mounting brackets for a roof top ladder.  I will stick weld these pieces, probably in the flat position.  I was planning on using my Maxstar 200.  I have 1/8" rods in 6010, 6013, 7014 and 7018. I'm looking for some recommendations-Should I run one pass on each side or run multiple beads on each side?Any insight would be appreciated.Thanks in advance.BrianBrianLincoln Mig 215Miller 211Victor Torch SetMiller Maxstar 200SDMiller Syncrowave 250DX Tig runnerMiller Trailblazer 302 running on LPMiller Extreme 12 VS SuitcaseEllis 1600 BandsawMiller xmt350 CC/CVLincoln Vantage 300
Reply:alternating sides is never a bad idea.Or a healthy tack to keep it from pulling to the side you are welding.oh,  and if it were me,  i would probably just do a single pass on each side with 7018.Last edited by sjames; 10-01-2010 at 07:46 PM.
Reply:In school, we ran a 6010 "root" and then we covered it was two 1/8" 7018 passes. This seemed like overkill and I think it is because everything we do is to lead up to pipe. I would go with a solid 7018 pass on each side.
Reply:A nice hot (175+ amps) pass on both sides with 5/32 7018 would be the ticket  Makes for nice meaty welds that you'll have confidence in."Any day above ground is a good day"http://www.farmersamm.com/
Reply:Mounting brackets for a roof ladder?Roof as in roof of a building?  As in "structural welding"?I'd say then to do it according to Code.If the engineering prints/documents don't already specify -which- applicable Code(s) apply, then IMHO you should make it so that it NEVER fails or that the part(s) you worked on never fail before the rest of the item fails.With that in mind,  barring any other Code or engineering inputs as to details on the fabrication, I'd say to bevel both sides of the T-plate by 1/8 inch, thus leaving a 1/8 inch land.  Tack in place, then run a root pass on one edge, back-grind the backside and run another pass on the other side.  Then run cap pass(es) as needed to properly fill the fillet.  Using fresh 7018 rods or equivalent in wire (GMAW or FCAW).IMHO.    The best laid schemes ... Gang oft agley ...