The effect of cooling media on mechanical properties of welded ST37 steel

Abstract

Welding serves as one of the most important manufacturing processes in the metal industry. This study aims to investigate the effect of cooling media on the fracture profile and tensile properties of the joint produced during (SMAW). The two cylindrical ST37 steel rods were welded by utilizing SMAW technique, further soaked into various cooling media such as: Aloe vera, oil, and water. Tensile test was performed to obtain mechanical properties of welded ST37. Specimens with Aloe vera and oil cooling media were evident to have more ductile fracture profile compared to specimens with water cooling media. Specimen with aloe vera cooling media indicates the highest stress of 36.60 kg/mm2 and strain of 0.196%. Meanwhile, specimens with water cooling media present the lowest stress.