Investigation of Microstructural and Metallurgical Properties of Corten A588 Grade Steel GTAW Joints

Corten A588 steel is a high strength low alloy structural steel having 0.19% wt of carbon content. It has good corrosion resistance when exposed to extreme atmospheric conditions. Corten steel weighs less than other grades of carbon steel without compromising its strength. Corten A588 is mainly used in building railway wagons. In rail coach manufacturing arc welding process GTAW is carried to make permanent joints using ER70S-6 filler rod. Lack of fusion, lack of penetration, and lack of porosity are the major problem in welding corten A588 grade steel. In this research work, micro structural and metallurgical properties on Corten A588 Grade Steel of GTAW joints is evaluated.