The arc welding TIG (Tungsten Inert Gas ), is widely used in industry for welding aluminum, iron or stainless steel, since high-quality results are obtained. This type of welding it up besides the same power source, a torch with tungsten tip, able to withstand temperatures up to 3400 degrees without melting, protected by a ceramic cap, a gas cylinder argon or helium to cool the welding adjustable from the same torch clamp to the typical mass and filler material to the weld. The latter is optional, since the TIG welding can filler material rodlike or without. The great advantage of this type of welding is that we can weld continuously, forming continuous and compact cords, clean weld spatter and excess unburned material. In Ponsico s.c.p. we have always used electric arc welding with conventional electrodes, but for a while we have incorporated the TIG welding, with remarkable results which are obtained in our work in iron and stainless steel, and adapting to market demands. In the video at the bottom we can see a small example of a TIG welding stainless steel contribution.