Abstract

The present study aimed to examine the low cycle fatigue properties of continuous welded areas at the arc start and end points of butt welded low-alloy steel. To this end, ASTM A633 grade D steel was butt welded by manual arc welding. Samples were collected for stiffness and fatigue test based on the standard ASTM E 466 from the points where the arc was continuous and where the arc was interrupted and re-established. Tensile and hardness test results showed that despite increasing tensile strength and stiffness at the arc start and end points, fatigue strength was decreased.