The gas tungsten arc welding (GTAW) method is used with different parameters to join 304SS, 308LSS, and 304SS. welding speed and gas flow rate effects on the characterization of the three welding samples were studied. Optical microscopy (OM) and scanning electron microscopy (SEM) were used to look at the base materials (BM), the heat-affected zone (HAZ), and the welding materials (WM). The tensile...