Ltd. The basic classification of Mn and Ni base E 8018-C1
with nominal composition of 0.06% C, 1.8% Mn and 2.5% Ni
electrode was used to weld the naval grade steels. The welding
conditions and parameters used to fabricate the defect free
joints are presented in Tables 2 and 3.
ASTM E8M-04 guidelines were followed for preparing the
tensile test specimens. 100 kN electromechanical controlled
universal testing machine (Make: FIE Bluestar, India; Model:
UNITEK-94100) was used to evaluate the tensile properties.
In each condition, three specimens were tested and the average
value was presented. Charpy impact specimens were prepared
to evaluate the impact toughness of the weld metal and hence
the notch was placed (machined) in the weld metal (weld
center). Since the plate thickness was small, the sub-size
specimens were prepared. Impact testing was conducted on a
pendulum-type impact testing machine (Enkay, India) at room
temperature. The amount of energy absorbed in fracture was
recorded. The absorbed energy is defined as the impact
toughness of the material.