Analysis of different types of welding wire for welding of steel pipes having wall thickness greater than 25.0 mm

The article presents a comparative analysis of different types of welding wire: solid wire and cored wire. A welding of plates in protective gas environment was carried out with the use of these types of wire. Mechanical tests and macrostructure study were performed. The results allowed to draw a conclusion that the cored wire can be effectively used for welding longitudinal seams of large diameter pipes with wall thickness greater than 25.0 mm.