It is used for welding of 78 kgf/mm2 high tensile steels. Pen stock, pressure vessel, Earthmoving equipments and other heavy steel fabrication made from high tensile steels. Welding of USS-1, C and D grades of SA-225/225M; B, C, D grades of SA-543/543M. Heat treated fine grained steels N-A-Xtra 55 upto 70, HY 80 etc.