Go to any stainless or duplex work shop and listen to the discussions on the numerous weld and metallurgical issues that can occur with these complex alloys. If you were utilizing TiP TIG at your facility, you would sit back and smile, as the majority of problems under discussion can not happen with a weld process that consistently delivers the highest possible weld quality with the lowest possible weld heat. In contrast, if however you were using regular TIG, you would have a process that delivers high weld energy with high weld heat, while pulsed MIG and Flux Cored would both deliver moderate weld energy and high weld heat.
The higher TiP TiG weld energy and agitated TIG weld pool will produce welds that have least potential for lack of fusion - weld pores - inclusions. The lowest heat from TIP TiG results in the lowest possible weld oxidation, the lowest weld distortion, the least weld stresses and the welds will require the least weld cleaning.
When the world's largest nuclear plant (Hanford WA) wanted to weld 40 inch stainless pipe to the highest weld standards, they turned to TiP TiG.
TiP TiG. no need to feed a wire, no foot control, less skills required, the least chrome - manganese weld fumes and lowest weld fatigue. TiP TiG, better weld quality and lower heat than any process, no weld cleaning, best mechanical - corrosion properties. TiP TiG 200 - 300% more weld each hour than TIG and as cost effective as MIG -flux cored, (see news weld cost section).
The lowest possible weld heat from TiP TiG can if required reduce weld - clad dilution which with stainless welds typically means more chrome and nickel for the welds adding to the weld's corrosion resistance. More chrome for the weld also means more ferrite which again improves weld crack resistance. With those pulsed MIG, Flux Cored, Metal Cored clad welds that require 2 tor more weld layers, with TiP TiG you will like get the clad results often with a single layer. When your welds are the cleanest possible, with TiP TiG stainless welds you should eliminate the need for passivation and eliminate the labor / consumable costs associated with weld grinding and cleaning. With duplex and austenitic welds ferrite control is easy. With any alloys , attaining optimum impact or the best possible mechanical or corrosion properties should always be a simple task. Every steel and alloy will benefit from a weld that will consistently produce the highest weld quality with the lowest weld heat.