The welded joint

base material requirements, pre-welding NDT, welding process, weld detail definition, edge preparation, tack weld procedure, backing gas, re-drying of filler metal, preheating, number of passes, welding parameters, speed range, dilution, preheat and interpass temperature, preheat maintenance, finishing, final NDT...

All these parameters, but not only, affect the success of a sound welding.

For this reason, the technological design of welding is an extremely crucial issue, for which the IIS Group is an acknowledged reference for competence and reliability.