Bohler CN 13/4-MC description: Metal cored wire for the fabrication and repair welding of hydro turbine components made of soft martensitic 13% Cr 4% Ni alloyed steels and cast steels. BOHLER CN 13/4-MC offers favourable spray arc or pulsarc characteristics, minimum spatter formation, flat and smooth bead profiles, excellent wetting behaviour and safe penetration. It is easy to operate in all welding positions. Additionally, precise alloy adjustment ensure very good impact test results of the heat treated weld metal. The hydrogen content is extra low (maximum 4 ml/100 g acc. to AWS conditions). Significant gains in productivity can be realized by higher deposition rates and reduced post weld grinding when compared to GMAW using solid wires.