OK Tubrodur 15.43 FCAW Type Basic Description OK Tubrodur 15.43 is a self-shielded, flux-cored, tubular wire, primarily developed for the on-site rebuilding of worn CMn railway and tram tracks. The weld deposit is of the CrNiMo type and hasClassifications no applicable classification Typical all weld metal composition, % C Si Mn Cr Ni Mo Al 0.14 0.3 1.1 1.0 2.2 0.5 1.5 Typical mech. properties all weld metal Weld metal hardness, a w 30-40 HRC Machinability Good Impact resistance Good Metal-to-metal wear resistance Very good excellent compressive strength with a hardness of 30-40 HRC. Welding current DC+