What to bring on a job...

[performance]

They make 309l in stick. Get lincoln red baron. It's the best to weld with. You got to use about 20% lower heat, and keep it moving, but it looks as good or better than any 7018 and the weld will not corrode (easily). Weld no more than about 1/2 rod at a time or it will overheat...The slag is literally molten lime, and I have a nasty burn scar on my thigh from it, but it will work great...just watch the drips. Having dissimilar metals isn't something unusual. The main contact area is all they worry about SS. In fact, hoods often are galvanized only....at least around here, and definitely the duct work is. SS is expensive and reserved for the most expensive applications. IF food isn't in direct contact with the metal, SS isn't usually required. Welding the galvanized is a little iffy though....You need to spray some cold galvanized coating on it when you finish though.