Dissimilar Steels Welding between 15Mo3 and 15CrMo Steel

In order to solve the problem of dissimilar steel welding between 15Mo3 and 15CrMo steel in a gas utilization project, welding process was established and welding materials were confirmed according to relevant welding criteria. Finally, the process was put into practice, and the welding performances of the welded joint reached the desired effect and no leakage accident happened, which demonstrated the reliability and feasibility of the established welding process.