Changes in the Mechanical Properties and Microstructure of High Manganese Steel by High Heat Input Welding and General Welding Processes

The demand for liquefied-natural-gas-fueled tanks on ships is growing in accordance with IMO 2020 regulations. use of high manganese steel has increased recently, as this material can be applied at cryogenic service temperatures according to IGF code and economic advantages over other materials. In study, the heat input welding process, which involves one-side submerged arc (SAW) cut wire, investigated increase productivity fuel tank welding. Flux cored SAW processes are also evaluated compared process. mechanical properties satisfied class requirements no precipitates were found weldment heat-affected zone.