Stainless steel needs controlled heat input — too much and it warps, too little and you get lack of fusion. This range collects the Simder machines that will run stainless sheet, tube and exhaust work.
Pick a MIG or flux-core machine if you want simple bead-on-plate repair, or a multi-process unit when you need TIG for thin gauge and stick for heavier sections on the same job.
Not sure which duty cycle you need? Every Simder machine is covered by our 3-year warranty, and service@ssimder.com can match a machine to your material thickness.
TIG - it keeps stainless bright and corrosion-resistant with argon shielding. The TIG-250AC and TIG-200A are the picks; MIG with 308L wire and tri-mix gas works for faster, less-critical welds.
Can I weld stainless with normal MIG wire?
No - use 308L (for 304 stainless) or 316L (for 316) wire. Running mild-steel wire on stainless rusts the joint and ruins the corrosion resistance that justifies stainless in the first place.
Why do my stainless welds turn black?
Too much heat or not enough gas coverage. Lower amps, move faster, use a gas lens with adequate flow (15-20 CFH), and back-purge critical work. Sugar (black crust) means the back side burned too.
Does welding ruin stainless corrosion resistance?
The weld area can if done wrong - that is why filler match (308L/316L), argon coverage, and passivating the finished weld matter. Done right, TIG welds on stainless stay fully corrosion-resistant.
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