OK Tubrodur 15.40 FCAW Type Rutile Description OK Tubrodur 15.40 is a CO2-shielded, flux-cored wire for the hardfacing deposit of a manganesechromium- molybdenum-alloyed weld metal. It is used for the surfacing of wheel runners, wheels and rollers for conveyor belts, wheels for mine trucks, rolls and shafts. Welding current DC+ Classifications no applicable classification Typical all weld metal composition, % C Si Mn Cr 0.2 1.0 1.4 1.4 Typical mech. properties all weld metal Weld metal hardness, a w 32-40 HRC Machinability Good Impact resistance Good Metal-to-metal wear resistance Very good