GTAW vs STT (2 times faster than SMAW, 4 times faster than GTAW)

The patented STT® (Surface Tension Transfer) is a modified GMAW short circuit welding process, designed for open root welding. This unique process simplifies open root welding, requiring less operator experience to implement. STT® is a proven pipeline process, produces excellent quality welds, and improves productivity over more traditional SMAW & GTAW root welding methods. These results are due to the patented design of this process, eliminating common problems such as burn-through and lack of fusion commonly associated with standard short-circuit transfer.