OK Autrod 13.36 is a C 1.0%Mn, 0.8%Ni, 0.4%Cu wire used in combination with OK Flux 10.71 to weld weather-resisting steels used in the construction of buildings, bridges, boilers, exhaust chimneys etc. The weld metal has improved corrosion to that of carbon manganese weld metal when exposed to environments containing salt water, sulphurous gases and caustic liquors.