In this study, newly developed welding consumables for EGW were welded in EH 36 TM steel plates
and their welded joints were evaluated in point of mechanical properties and microstructures compared with
imported consumables. Newly developed welding consumables were evaluated as good arc stability and slag
fluidity, substantially the same with imported products. The tensile strength of all welded joints were
sufficient to meet the requirements specified in a ship’s classification(490~640MPa) and all areas of
fracture were heat affected zone(HAZ). Charpy absorbed energy values of all EG welded metals were
sufficient to meet the requirements of classification(min. 34J) and those of newly developed wires were
evaluated to be better than those of imported wires. As a result observing microstructures of single and
tandem EG welded metals through optical and scanning electron microscope (OM&SEM), no grain
boundary ferrite(PF(G)) were created in a prior austenite grain boundary and a volume fraction of a fine
acicular ferrite were observed very high.